[U-Boot] [PATCH 5/7] EXYNOS: support EXYNOS MIPI DSI interface driver.
Donghwa Lee
dh09.lee at samsung.com
Thu Apr 5 08:29:29 CEST 2012
EXYNOS SoC platform has MIPI-DSI controller and MIPI-DSI
based LCD Panel could be used with it. This patch supports MIPI-DSI driver
based Samsung SoC chip.
LCD panel driver based MIPI-DSI should be registered to MIPI-DSI driver at
board file and LCD panel driver specific function registered to mipi_dsim_ddi
structure at lcd panel init function called system init.
In the MIPI-DSI driver, find lcd panel driver by using registered
lcd panel name, and then initialize lcd panel driver.
Signed-off-by: Donghwa Lee <dh09.lee at samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park at samsung.com>
Signed-off-by: Inki Dae <inki.dae at samsung.com>
---
arch/arm/include/asm/arch-exynos/dsim.h | 181 +++++++
arch/arm/include/asm/arch-exynos/mipi_dsim.h | 400 +++++++++++++++
drivers/video/exynos_mipi_dsi.c | 257 ++++++++++
drivers/video/exynos_mipi_dsi_common.c | 645 +++++++++++++++++++++++++
drivers/video/exynos_mipi_dsi_common.h | 48 ++
drivers/video/exynos_mipi_dsi_lowlevel.c | 669 ++++++++++++++++++++++++++
drivers/video/exynos_mipi_dsi_lowlevel.h | 111 +++++
7 files changed, 2311 insertions(+), 0 deletions(-)
create mode 100644 arch/arm/include/asm/arch-exynos/dsim.h
create mode 100644 arch/arm/include/asm/arch-exynos/mipi_dsim.h
create mode 100644 drivers/video/exynos_mipi_dsi.c
create mode 100644 drivers/video/exynos_mipi_dsi_common.c
create mode 100644 drivers/video/exynos_mipi_dsi_common.h
create mode 100644 drivers/video/exynos_mipi_dsi_lowlevel.c
create mode 100644 drivers/video/exynos_mipi_dsi_lowlevel.h
diff --git a/arch/arm/include/asm/arch-exynos/dsim.h b/arch/arm/include/asm/arch-exynos/dsim.h
new file mode 100644
index 0000000..e148aca
--- /dev/null
+++ b/arch/arm/include/asm/arch-exynos/dsim.h
@@ -0,0 +1,181 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Author: InKi Dae <inki.dae at samsung.com>
+ * Author: Donghwa Lee <dh09.lee at samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef __ASM_ARM_ARCH_DSIM_H_
+#define __ASM_ARM_ARCH_DSIM_H_
+
+#ifndef __ASSEMBLY__
+
+struct exynos_mipi_dsim {
+ unsigned int status;
+ unsigned int swrst;
+ unsigned int clkctrl;
+ unsigned int timeout;
+ unsigned int config;
+ unsigned int escmode;
+ unsigned int mdresol;
+ unsigned int mvporch;
+ unsigned int mhporch;
+ unsigned int msync;
+ unsigned int sdresol;
+ unsigned int intsrc;
+ unsigned int intmsk;
+ unsigned int pkthdr;
+ unsigned int payload;
+ unsigned int rxfifo;
+ unsigned int fifothld;
+ unsigned int fifoctrl;
+ unsigned int memacchr;
+ unsigned int pllctrl;
+ unsigned int plltmr;
+ unsigned int phyacchr;
+ unsigned int phyacchr1;
+};
+
+#endif /* __ASSEMBLY__ */
+
+/*
+ * Bit Definitions
+ */
+/* DSIM_STATUS */
+#define DSIM_STOP_STATE_DAT(x) (((x) & 0xf) << 0)
+#define DSIM_STOP_STATE_CLK (1 << 8)
+#define DSIM_TX_READY_HS_CLK (1 << 10)
+#define DSIM_PLL_STABLE (1 << 31)
+
+/* DSIM_SWRST */
+#define DSIM_FUNCRST (1 << 16)
+#define DSIM_SWRST (1 << 0)
+
+/* EXYNOS_DSIM_TIMEOUT */
+#define DSIM_LPDR_TOUT_SHIFT (0)
+#define DSIM_BTA_TOUT_SHIFT (16)
+
+/* EXYNOS_DSIM_CLKCTRL */
+#define DSIM_LANE_ESC_CLKEN_SHIFT (19)
+#define DSIM_BYTE_CLKEN_SHIFT (24)
+#define DSIM_BYTE_CLK_SRC_SHIFT (25)
+#define DSIM_PLL_BYPASS_SHIFT (27)
+#define DSIM_ESC_CLKEN_SHIFT (28)
+#define DSIM_TX_REQUEST_HSCLK_SHIFT (31)
+#define DSIM_LANE_ESC_CLKEN(x) (((x) & 0x1f) << \
+ DSIM_LANE_ESC_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_ENABLE (1 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_BYTE_CLK_DISABLE (0 << DSIM_BYTE_CLKEN_SHIFT)
+#define DSIM_PLL_BYPASS_EXTERNAL (1 << DSIM_PLL_BYPASS_SHIFT)
+#define DSIM_ESC_CLKEN_ENABLE (1 << DSIM_ESC_CLKEN_SHIFT)
+#define DSIM_ESC_CLKEN_DISABLE (0 << DSIM_ESC_CLKEN_SHIFT)
+
+/* EXYNOS_DSIM_CONFIG */
+#define DSIM_NUM_OF_DATALANE_SHIFT (5)
+#define DSIM_SUBPIX_SHIFT (8)
+#define DSIM_MAINPIX_SHIFT (12)
+#define DSIM_SUBVC_SHIFT (16)
+#define DSIM_MAINVC_SHIFT (18)
+#define DSIM_HSA_MODE_SHIFT (20)
+#define DSIM_HBP_MODE_SHIFT (21)
+#define DSIM_HFP_MODE_SHIFT (22)
+#define DSIM_HSE_MODE_SHIFT (23)
+#define DSIM_AUTO_MODE_SHIFT (24)
+#define DSIM_VIDEO_MODE_SHIFT (25)
+#define DSIM_BURST_MODE_SHIFT (26)
+#define DSIM_EOT_PACKET_SHIFT (28)
+#define DSIM_AUTO_FLUSH_SHIFT (29)
+#define DSIM_LANE_ENx(x) (((x) & 0x1f) << 0)
+
+#define DSIM_NUM_OF_DATA_LANE(x) ((x) << DSIM_NUM_OF_DATALANE_SHIFT)
+
+/* EXYNOS_DSIM_ESCMODE */
+#define DSIM_TX_LPDT_SHIFT (6)
+#define DSIM_CMD_LPDT_SHIFT (7)
+#define DSIM_TX_LPDT_LP (1 << DSIM_TX_LPDT_SHIFT)
+#define DSIM_CMD_LPDT_LP (1 << DSIM_CMD_LPDT_SHIFT)
+#define DSIM_STOP_STATE_CNT_SHIFT (21)
+#define DSIM_FORCE_STOP_STATE_SHIFT (20)
+
+/* EXYNOS_DSIM_MDRESOL */
+#define DSIM_MAIN_STAND_BY (1 << 31)
+#define DSIM_MAIN_VRESOL(x) (((x) & 0x7ff) << 16)
+#define DSIM_MAIN_HRESOL(x) (((x) & 0X7ff) << 0)
+
+/* EXYNOS_DSIM_MVPORCH */
+#define DSIM_CMD_ALLOW_SHIFT (28)
+#define DSIM_STABLE_VFP_SHIFT (16)
+#define DSIM_MAIN_VBP_SHIFT (0)
+#define DSIM_CMD_ALLOW_MASK (0xf << DSIM_CMD_ALLOW_SHIFT)
+#define DSIM_STABLE_VFP_MASK (0x7ff << DSIM_STABLE_VFP_SHIFT)
+#define DSIM_MAIN_VBP_MASK (0x7ff << DSIM_MAIN_VBP_SHIFT)
+
+/* EXYNOS_DSIM_MHPORCH */
+#define DSIM_MAIN_HFP_SHIFT (16)
+#define DSIM_MAIN_HBP_SHIFT (0)
+#define DSIM_MAIN_HFP_MASK ((0xffff) << DSIM_MAIN_HFP_SHIFT)
+#define DSIM_MAIN_HBP_MASK ((0xffff) << DSIM_MAIN_HBP_SHIFT)
+
+/* EXYNOS_DSIM_MSYNC */
+#define DSIM_MAIN_VSA_SHIFT (22)
+#define DSIM_MAIN_HSA_SHIFT (0)
+#define DSIM_MAIN_VSA_MASK ((0x3ff) << DSIM_MAIN_VSA_SHIFT)
+#define DSIM_MAIN_HSA_MASK ((0xffff) << DSIM_MAIN_HSA_SHIFT)
+
+/* EXYNOS_DSIM_SDRESOL */
+#define DSIM_SUB_STANDY_SHIFT (31)
+#define DSIM_SUB_VRESOL_SHIFT (16)
+#define DSIM_SUB_HRESOL_SHIFT (0)
+#define DSIM_SUB_STANDY_MASK ((0x1) << DSIM_SUB_STANDY_SHIFT)
+#define DSIM_SUB_VRESOL_MASK ((0x7ff) << DSIM_SUB_VRESOL_SHIFT)
+#define DSIM_SUB_HRESOL_MASK ((0x7ff) << DSIM_SUB_HRESOL_SHIFT)
+
+/* EXYNOS_DSIM_INTSRC */
+#define INTSRC_FRAME_DONE (1 << 24)
+#define INTSRC_PLL_STABLE (1 << 31)
+#define INTSRC_SWRST_RELEASE (1 << 30)
+
+/* EXYNOS_DSIM_INTMSK */
+#define INTMSK_FRAME_DONE (1 << 24)
+
+/* EXYNOS_DSIM_FIFOCTRL */
+#define SFR_HEADER_EMPTY (1 << 22)
+
+/* EXYNOS_DSIM_PKTHDR */
+#define DSIM_PKTHDR_DI(x) (((x) & 0x3f) << 0)
+#define DSIM_PKTHDR_DAT0(x) ((x) << 8)
+#define DSIM_PKTHDR_DAT1(x) ((x) << 16)
+
+/* EXYNOS_DSIM_PHYACCHR */
+#define DSIM_AFC_CTL(x) (((x) & 0x7) << 5)
+#define DSIM_AFC_CTL_SHIFT (5)
+#define DSIM_AFC_EN (1 << 14)
+
+/* EXYNOS_DSIM_PHYACCHR1 */
+#define DSIM_DPDN_SWAP_DATA_SHIFT (0)
+
+/* EXYNOS_DSIM_PLLCTRL */
+#define DSIM_SCALER_SHIFT (1)
+#define DSIM_MAIN_SHIFT (4)
+#define DSIM_PREDIV_SHIFT (13)
+#define DSIM_PRECTRL_SHIFT (20)
+#define DSIM_PLL_EN_SHIFT (23)
+#define DSIM_FREQ_BAND_SHIFT (24)
+#define DSIM_ZEROCTRL_SHIFT (28)
+
+#endif
diff --git a/arch/arm/include/asm/arch-exynos/mipi_dsim.h b/arch/arm/include/asm/arch-exynos/mipi_dsim.h
new file mode 100644
index 0000000..4ae6830
--- /dev/null
+++ b/arch/arm/include/asm/arch-exynos/mipi_dsim.h
@@ -0,0 +1,400 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Author: InKi Dae <inki.dae at samsung.com>
+ * Author: Donghwa Lee <dh09.lee at samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _DSIM_H
+#define _DSIM_H
+
+#include <linux/list.h>
+#include <linux/fb.h>
+
+#define PANEL_NAME_SIZE (32)
+
+enum mipi_dsim_interface_type {
+ DSIM_COMMAND,
+ DSIM_VIDEO
+};
+
+enum mipi_dsim_virtual_ch_no {
+ DSIM_VIRTUAL_CH_0,
+ DSIM_VIRTUAL_CH_1,
+ DSIM_VIRTUAL_CH_2,
+ DSIM_VIRTUAL_CH_3
+};
+
+enum mipi_dsim_burst_mode_type {
+ DSIM_NON_BURST_SYNC_EVENT,
+ DSIM_BURST_SYNC_EVENT,
+ DSIM_NON_BURST_SYNC_PULSE,
+ DSIM_BURST,
+ DSIM_NON_VIDEO_MODE
+};
+
+enum mipi_dsim_no_of_data_lane {
+ DSIM_DATA_LANE_1,
+ DSIM_DATA_LANE_2,
+ DSIM_DATA_LANE_3,
+ DSIM_DATA_LANE_4
+};
+
+enum mipi_dsim_byte_clk_src {
+ DSIM_PLL_OUT_DIV8,
+ DSIM_EXT_CLK_DIV8,
+ DSIM_EXT_CLK_BYPASS
+};
+
+enum mipi_dsim_pixel_format {
+ DSIM_CMD_3BPP,
+ DSIM_CMD_8BPP,
+ DSIM_CMD_12BPP,
+ DSIM_CMD_16BPP,
+ DSIM_VID_16BPP_565,
+ DSIM_VID_18BPP_666PACKED,
+ DSIM_18BPP_666LOOSELYPACKED,
+ DSIM_24BPP_888
+};
+
+/* MIPI DSI Processor-to-Peripheral transaction types */
+enum {
+ MIPI_DSI_V_SYNC_START = 0x01,
+ MIPI_DSI_V_SYNC_END = 0x11,
+ MIPI_DSI_H_SYNC_START = 0x21,
+ MIPI_DSI_H_SYNC_END = 0x31,
+
+ MIPI_DSI_COLOR_MODE_OFF = 0x02,
+ MIPI_DSI_COLOR_MODE_ON = 0x12,
+ MIPI_DSI_SHUTDOWN_PERIPHERAL = 0x22,
+ MIPI_DSI_TURN_ON_PERIPHERAL = 0x32,
+
+ MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM = 0x03,
+ MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM = 0x13,
+ MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM = 0x23,
+
+ MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM = 0x04,
+ MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM = 0x14,
+ MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM = 0x24,
+
+ MIPI_DSI_DCS_SHORT_WRITE = 0x05,
+ MIPI_DSI_DCS_SHORT_WRITE_PARAM = 0x15,
+
+ MIPI_DSI_DCS_READ = 0x06,
+
+ MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE = 0x37,
+
+ MIPI_DSI_END_OF_TRANSMISSION = 0x08,
+
+ MIPI_DSI_NULL_PACKET = 0x09,
+ MIPI_DSI_BLANKING_PACKET = 0x19,
+ MIPI_DSI_GENERIC_LONG_WRITE = 0x29,
+ MIPI_DSI_DCS_LONG_WRITE = 0x39,
+
+ MIPI_DSI_LOOSELY_PACKED_PIXEL_STREAM_YCBCR20 = 0x0c,
+ MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR24 = 0x1c,
+ MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR16 = 0x2c,
+
+ MIPI_DSI_PACKED_PIXEL_STREAM_30 = 0x0d,
+ MIPI_DSI_PACKED_PIXEL_STREAM_36 = 0x1d,
+ MIPI_DSI_PACKED_PIXEL_STREAM_YCBCR12 = 0x3d,
+
+ MIPI_DSI_PACKED_PIXEL_STREAM_16 = 0x0e,
+ MIPI_DSI_PACKED_PIXEL_STREAM_18 = 0x1e,
+ MIPI_DSI_PIXEL_STREAM_3BYTE_18 = 0x2e,
+ MIPI_DSI_PACKED_PIXEL_STREAM_24 = 0x3e,
+};
+
+/*
+ * struct mipi_dsim_config - interface for configuring mipi-dsi controller.
+ *
+ * @auto_flush: enable or disable Auto flush of MD FIFO using VSYNC pulse.
+ * @eot_disable: enable or disable EoT packet in HS mode.
+ * @auto_vertical_cnt: specifies auto vertical count mode.
+ * in Video mode, the vertical line transition uses line counter
+ * configured by VSA, VBP, and Vertical resolution.
+ * If this bit is set to '1', the line counter does not use VSA and VBP
+ * registers.(in command mode, this variable is ignored)
+ * @hse: set horizontal sync event mode.
+ * In VSYNC pulse and Vporch area, MIPI DSI master transfers only HSYNC
+ * start packet to MIPI DSI slave at MIPI DSI spec1.1r02.
+ * this bit transfers HSYNC end packet in VSYNC pulse and Vporch area
+ * (in mommand mode, this variable is ignored)
+ * @hfp: specifies HFP disable mode.
+ * if this variable is set, DSI master ignores HFP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hbp: specifies HBP disable mode.
+ * if this variable is set, DSI master ignores HBP area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @hsa: specifies HSA disable mode.
+ * if this variable is set, DSI master ignores HSA area in VIDEO mode.
+ * (in command mode, this variable is ignored)
+ * @e_interface: specifies interface to be used.(CPU or RGB interface)
+ * @e_virtual_ch: specifies virtual channel number that main or
+ * sub diaplsy uses.
+ * @e_pixel_format: specifies pixel stream format for main or sub display.
+ * @e_burst_mode: selects Burst mode in Video mode.
+ * in Non-burst mode, RGB data area is filled with RGB data and NULL
+ * packets, according to input bandwidth of RGB interface.
+ * In Burst mode, RGB data area is filled with RGB data only.
+ * @e_no_data_lane: specifies data lane count to be used by Master.
+ * @e_byte_clk: select byte clock source. (it must be DSIM_PLL_OUT_DIV8)
+ * DSIM_EXT_CLK_DIV8 and DSIM_EXT_CLK_BYPASSS are not supported.
+ * @pll_stable_time: specifies the PLL Timer for stability of the ganerated
+ * clock(System clock cycle base)
+ * if the timer value goes to 0x00000000, the clock stable bit of status
+ * and interrupt register is set.
+ * @esc_clk: specifies escape clock frequency for getting the escape clock
+ * prescaler value.
+ * @stop_holding_cnt: specifies the interval value between transmitting
+ * read packet(or write "set_tear_on" command) and BTA request.
+ * after transmitting read packet or write "set_tear_on" command,
+ * BTA requests to D-PHY automatically. this counter value specifies
+ * the interval between them.
+ * @bta_timeout: specifies the timer for BTA.
+ * this register specifies time out from BTA request to change
+ * the direction with respect to Tx escape clock.
+ * @rx_timeout: specifies the timer for LP Rx mode timeout.
+ * this register specifies time out on how long RxValid deasserts,
+ * after RxLpdt asserts with respect to Tx escape clock.
+ * - RxValid specifies Rx data valid indicator.
+ * - RxLpdt specifies an indicator that D-PHY is under RxLpdt mode.
+ * - RxValid and RxLpdt specifies signal from D-PHY.
+ */
+struct mipi_dsim_config {
+ unsigned char auto_flush;
+ unsigned char eot_disable;
+
+ unsigned char auto_vertical_cnt;
+ unsigned char hse;
+ unsigned char hfp;
+ unsigned char hbp;
+ unsigned char hsa;
+
+ enum mipi_dsim_interface_type e_interface;
+ enum mipi_dsim_virtual_ch_no e_virtual_ch;
+ enum mipi_dsim_pixel_format e_pixel_format;
+ enum mipi_dsim_burst_mode_type e_burst_mode;
+ enum mipi_dsim_no_of_data_lane e_no_data_lane;
+ enum mipi_dsim_byte_clk_src e_byte_clk;
+
+ /*
+ * ===========================================
+ * | P | M | S | MHz |
+ * -------------------------------------------
+ * | 3 | 100 | 3 | 100 |
+ * | 3 | 100 | 2 | 200 |
+ * | 3 | 63 | 1 | 252 |
+ * | 4 | 100 | 1 | 300 |
+ * | 4 | 110 | 1 | 330 |
+ * | 12 | 350 | 1 | 350 |
+ * | 3 | 100 | 1 | 400 |
+ * | 4 | 150 | 1 | 450 |
+ * | 6 | 118 | 1 | 472 |
+ * | 3 | 120 | 1 | 480 |
+ * | 12 | 250 | 0 | 500 |
+ * | 4 | 100 | 0 | 600 |
+ * | 3 | 81 | 0 | 648 |
+ * | 3 | 88 | 0 | 704 |
+ * | 3 | 90 | 0 | 720 |
+ * | 3 | 100 | 0 | 800 |
+ * | 12 | 425 | 0 | 850 |
+ * | 4 | 150 | 0 | 900 |
+ * | 12 | 475 | 0 | 950 |
+ * | 6 | 250 | 0 | 1000 |
+ * -------------------------------------------
+ */
+
+ /*
+ * pms could be calculated as the following.
+ * M * 24 / P * 2 ^ S = MHz
+ */
+ unsigned char p;
+ unsigned short m;
+ unsigned char s;
+
+ unsigned int pll_stable_time;
+ unsigned long esc_clk;
+
+ unsigned short stop_holding_cnt;
+ unsigned char bta_timeout;
+ unsigned short rx_timeout;
+};
+
+/*
+ * struct mipi_dsim_device - global interface for mipi-dsi driver.
+ *
+ * @dev: driver model representation of the device.
+ * @id: unique device id.
+ * @clock: pointer to MIPI-DSI clock of clock framework.
+ * @irq: interrupt number to MIPI-DSI controller.
+ * @reg_base: base address to memory mapped SRF of MIPI-DSI controller.
+ * (virtual address)
+ * @lock: the mutex protecting this data structure.
+ * @dsim_info: infomation for configuring mipi-dsi controller.
+ * @master_ops: callbacks to mipi-dsi operations.
+ * @dsim_lcd_dev: pointer to activated ddi device.
+ * (it would be registered by mipi-dsi driver.)
+ * @dsim_lcd_drv: pointer to activated_ddi driver.
+ * (it would be registered by mipi-dsi driver.)
+ * @lcd_info: pointer to mipi_lcd_info structure.
+ * @state: specifies status of MIPI-DSI controller.
+ * the status could be RESET, INIT, STOP, HSCLKEN and ULPS.
+ * @resume_complete: indicates whether resume operation is completed or not.
+ * @data_lane: specifiec enabled data lane number.
+ * this variable would be set by driver according to e_no_data_lane
+ * automatically.
+ * @e_clk_src: select byte clock source.
+ * @pd: pointer to MIPI-DSI driver platform data.
+ */
+struct mipi_dsim_device {
+ struct mipi_dsim_config *dsim_config;
+ struct mipi_dsim_master_ops *master_ops;
+ struct mipi_dsim_lcd_device *dsim_lcd_dev;
+ struct mipi_dsim_lcd_driver *dsim_lcd_drv;
+
+ unsigned int state;
+ unsigned int data_lane;
+ enum mipi_dsim_byte_clk_src e_clk_src;
+
+ struct exynos_platform_mipi_dsim *pd;
+};
+
+/*
+ * struct exynos_platform_mipi_dsim - interface to platform data
+ * for mipi-dsi driver.
+ *
+ * @lcd_panel_name: specifies lcd panel name registered to mipi-dsi driver.
+ * lcd panel driver searched would be actived.
+ * @dsim_config: pointer of structure for configuring mipi-dsi controller.
+ * @lcd_panel_info: pointer for lcd panel specific structure.
+ * this structure specifies width, height, timing and polarity and so on.
+ * @mipi_power: callback pointer for enabling or disabling mipi power.
+ * @phy_enable: pointer to a callback controlling D-PHY enable/reset
+ */
+struct exynos_platform_mipi_dsim {
+ char lcd_panel_name[PANEL_NAME_SIZE];
+
+ struct mipi_dsim_config *dsim_config;
+ void *lcd_panel_info;
+
+ int (*lcd_power)(void);
+ int (*mipi_power)(void);
+ void (*phy_enable)(unsigned int enable, unsigned int dev_index);
+};
+/*
+ * struct mipi_dsim_master_ops - callbacks to mipi-dsi operations.
+ *
+ * @cmd_write: transfer command to lcd panel at LP mode.
+ * @cmd_read: read command from rx register.
+ * @get_dsim_frame_done: get the status that all screen data have been
+ * transferred to mipi-dsi.
+ * @clear_dsim_frame_done: clear frame done status.
+ * @get_fb_frame_done: get frame done status of display controller.
+ * @trigger: trigger display controller.
+ * - this one would be used only in case of CPU mode.
+ */
+
+struct mipi_dsim_master_ops {
+ int (*cmd_write)(struct mipi_dsim_device *dsim, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ int (*cmd_read)(struct mipi_dsim_device *dsim, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+ int (*get_dsim_frame_done)(struct mipi_dsim_device *dsim);
+ int (*clear_dsim_frame_done)(struct mipi_dsim_device *dsim);
+
+ int (*get_fb_frame_done)(void);
+ void (*trigger)(struct fb_info *info);
+};
+
+/*
+ * device structure for mipi-dsi based lcd panel.
+ *
+ * @name: name of the device to use with this device, or an
+ * alias for that name.
+ * @dev: driver model representation of the device.
+ * @id: id of device to be registered.
+ * @bus_id: bus id for identifing connected bus
+ * and this bus id should be same as id of mipi_dsim_device.
+ * @irq: irq number for signaling when framebuffer transfer of
+ * lcd panel module is completed.
+ * this irq would be used only for MIPI-DSI based CPU mode lcd panel.
+ * @master: pointer to mipi-dsi master device object.
+ * @platform_data: lcd panel specific platform data.
+ */
+struct mipi_dsim_lcd_device {
+ char *name;
+ char *panel_id;
+ int panel_type;
+ int id;
+ int bus_id;
+ int reverse;
+
+ struct mipi_dsim_device *master;
+ void *platform_data;
+};
+
+/*
+ * driver structure for mipi-dsi based lcd panel.
+ *
+ * this structure should be registered by lcd panel driver.
+ * mipi-dsi driver seeks lcd panel registered through name field
+ * and calls these callback functions in appropriate time.
+ *
+ * @name: name of the driver to use with this device, or an
+ * alias for that name.
+ * @id: id of driver to be registered.
+ * this id would be used for finding device object registered.
+ */
+struct mipi_dsim_lcd_driver {
+ char *name;
+ int id;
+
+ int (*mipi_panel_init)(struct mipi_dsim_device *dsim_dev);
+ void (*mipi_display_on)(struct mipi_dsim_device *dsim_dev);
+};
+
+int exynos_mipi_dsi_init(void);
+
+/*
+ * register mipi_dsim_lcd_driver object defined by lcd panel driver
+ * to mipi-dsi driver.
+ */
+int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver
+ *lcd_drv);
+
+/*
+ * register mipi_dsim_lcd_device to mipi-dsi master.
+ */
+int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device
+ *lcd_dev);
+
+/*
+ * exynos_dsim_phy_enable - global MIPI-DSI receiver D-PHY control
+ * @pdev: MIPI-DSIM platform device
+ * @on: true to enable D-PHY and deassert its reset
+ * false to disable D-PHY
+ */
+int exynos_dsim_phy_enable(int on);
+
+void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd);
+
+/* panel driver init based on mipi dsi interface */
+void s6e8ax0_init(void);
+
+#endif /* _DSIM_H */
diff --git a/drivers/video/exynos_mipi_dsi.c b/drivers/video/exynos_mipi_dsi.c
new file mode 100644
index 0000000..704f6a7
--- /dev/null
+++ b/drivers/video/exynos_mipi_dsi.c
@@ -0,0 +1,257 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Author: InKi Dae <inki.dae at samsung.com>
+ * Author: Donghwa Lee <dh09.lee at samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <ubi_uboot.h>
+#include <common.h>
+#include <lcd.h>
+#include <asm/errno.h>
+#include <asm/arch/dsim.h>
+#include <asm/arch/mipi_dsim.h>
+#include <asm/arch/power.h>
+#include <asm/arch/cpu.h>
+#include <asm/arch/clk.h>
+#include <linux/types.h>
+#include <linux/list.h>
+
+#include "exynos_mipi_dsi_lowlevel.h"
+#include "exynos_mipi_dsi_common.h"
+
+#define master_to_driver(a) (a->dsim_lcd_drv)
+#define master_to_device(a) (a->dsim_lcd_dev)
+
+static struct exynos_platform_mipi_dsim *dsim_pd;
+
+struct mipi_dsim_ddi {
+ int bus_id;
+ struct list_head list;
+ struct mipi_dsim_lcd_device *dsim_lcd_dev;
+ struct mipi_dsim_lcd_driver *dsim_lcd_drv;
+};
+
+static LIST_HEAD(dsim_ddi_list);
+static LIST_HEAD(dsim_lcd_dev_list);
+
+int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device *lcd_dev)
+{
+ struct mipi_dsim_ddi *dsim_ddi;
+
+ if (!lcd_dev) {
+ debug("mipi_dsim_lcd_device is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (!lcd_dev->name) {
+ debug("dsim_lcd_device name is NULL.\n");
+ return -EFAULT;
+ }
+
+ dsim_ddi = kzalloc(sizeof(struct mipi_dsim_ddi), GFP_KERNEL);
+ if (!dsim_ddi) {
+ debug("failed to allocate dsim_ddi object.\n");
+ return -EFAULT;
+ }
+
+ dsim_ddi->dsim_lcd_dev = lcd_dev;
+
+ list_add_tail(&dsim_ddi->list, &dsim_ddi_list);
+
+ return 0;
+}
+
+struct mipi_dsim_ddi
+ *exynos_mipi_dsi_find_lcd_device(struct mipi_dsim_lcd_driver *lcd_drv)
+{
+ struct mipi_dsim_ddi *dsim_ddi;
+ struct mipi_dsim_lcd_device *lcd_dev;
+
+ list_for_each_entry(dsim_ddi, &dsim_ddi_list, list) {
+ lcd_dev = dsim_ddi->dsim_lcd_dev;
+ if (!lcd_dev)
+ continue;
+
+ if (lcd_drv->id >= 0) {
+ if ((strcmp(lcd_drv->name, lcd_dev->name)) == 0 &&
+ lcd_drv->id == lcd_dev->id) {
+ /**
+ * bus_id would be used to identify
+ * connected bus.
+ */
+ dsim_ddi->bus_id = lcd_dev->bus_id;
+
+ return dsim_ddi;
+ }
+ } else {
+ if ((strcmp(lcd_drv->name, lcd_dev->name)) == 0) {
+ /**
+ * bus_id would be used to identify
+ * connected bus.
+ */
+ dsim_ddi->bus_id = lcd_dev->bus_id;
+
+ return dsim_ddi;
+ }
+ }
+
+ kfree(dsim_ddi);
+ list_del(&dsim_ddi_list);
+ }
+
+ return NULL;
+}
+
+int exynos_mipi_dsi_register_lcd_driver(struct mipi_dsim_lcd_driver *lcd_drv)
+{
+ struct mipi_dsim_ddi *dsim_ddi;
+
+ if (!lcd_drv) {
+ debug("mipi_dsim_lcd_driver is NULL.\n");
+ return -EFAULT;
+ }
+
+ if (!lcd_drv->name) {
+ debug("dsim_lcd_driver name is NULL.\n");
+ return -EFAULT;
+ }
+
+ dsim_ddi = exynos_mipi_dsi_find_lcd_device(lcd_drv);
+ if (!dsim_ddi) {
+ debug("mipi_dsim_ddi object not found.\n");
+ return -EFAULT;
+ }
+
+ dsim_ddi->dsim_lcd_drv = lcd_drv;
+
+ debug("registered panel driver(%s) to mipi-dsi driver.\n",
+ lcd_drv->name);
+
+ return 0;
+
+}
+
+struct mipi_dsim_ddi
+ *exynos_mipi_dsi_bind_lcd_ddi(struct mipi_dsim_device *dsim,
+ const char *name)
+{
+ struct mipi_dsim_ddi *dsim_ddi;
+ struct mipi_dsim_lcd_driver *lcd_drv;
+ struct mipi_dsim_lcd_device *lcd_dev;
+
+ list_for_each_entry(dsim_ddi, &dsim_ddi_list, list) {
+ lcd_drv = dsim_ddi->dsim_lcd_drv;
+ lcd_dev = dsim_ddi->dsim_lcd_dev;
+ if (!lcd_drv || !lcd_dev)
+ continue;
+
+ debug("lcd_drv->id = %d, lcd_dev->id = %d\n",
+ lcd_drv->id, lcd_dev->id);
+
+ if ((strcmp(lcd_drv->name, name) == 0)) {
+ lcd_dev->master = dsim;
+
+ dsim->dsim_lcd_dev = lcd_dev;
+ dsim->dsim_lcd_drv = lcd_drv;
+
+ return dsim_ddi;
+ }
+ }
+
+ return NULL;
+}
+
+/* define MIPI-DSI Master operations. */
+static struct mipi_dsim_master_ops master_ops = {
+ .cmd_write = exynos_mipi_dsi_wr_data,
+ .get_dsim_frame_done = exynos_mipi_dsi_get_frame_done_status,
+ .clear_dsim_frame_done = exynos_mipi_dsi_clear_frame_done,
+};
+
+int exynos_mipi_dsi_init(void)
+{
+ struct mipi_dsim_device *dsim;
+ struct mipi_dsim_config *dsim_config;
+ struct mipi_dsim_ddi *dsim_ddi;
+
+ dsim = kzalloc(sizeof(struct mipi_dsim_device), GFP_KERNEL);
+ if (!dsim) {
+ debug("failed to allocate dsim object.\n");
+ return -EFAULT;
+ }
+
+ /* get mipi_dsim_config. */
+ dsim_config = dsim_pd->dsim_config;
+ if (dsim_config == NULL) {
+ debug("failed to get dsim config data.\n");
+ return -EFAULT;
+ }
+
+ dsim->pd = dsim_pd;
+ dsim->dsim_config = dsim_config;
+ dsim->master_ops = &master_ops;
+
+
+ /* bind lcd ddi matched with panel name. */
+ dsim_ddi = exynos_mipi_dsi_bind_lcd_ddi(dsim, dsim_pd->lcd_panel_name);
+ if (!dsim_ddi) {
+ debug("mipi_dsim_ddi object not found.\n");
+ return -ENOSYS;
+ }
+ if (dsim_pd->lcd_power)
+ dsim_pd->lcd_power();
+
+ if (dsim_pd->mipi_power)
+ dsim_pd->mipi_power();
+
+ /* phy_enable(unsigned int enable, unsigned int dev_index) */
+ if (dsim_pd->phy_enable)
+ dsim_pd->phy_enable(1, 0);
+
+ set_mipi_clk();
+
+ exynos_mipi_dsi_init_dsim(dsim);
+ exynos_mipi_dsi_init_link(dsim);
+ exynos_mipi_dsi_set_hs_enable(dsim);
+
+ /* set display timing. */
+ exynos_mipi_dsi_set_display_mode(dsim, dsim->dsim_config);
+
+ /* initialize mipi-dsi client(lcd panel). */
+ if (dsim_ddi->dsim_lcd_drv && dsim_ddi->dsim_lcd_drv->mipi_panel_init) {
+ dsim_ddi->dsim_lcd_drv->mipi_panel_init(dsim);
+ dsim_ddi->dsim_lcd_drv->mipi_display_on(dsim);
+ }
+
+ debug("mipi-dsi driver(%s mode) has been probed.\n",
+ (dsim_config->e_interface == DSIM_COMMAND) ?
+ "CPU" : "RGB");
+
+ return 0;
+}
+
+void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd)
+{
+ if (pd == NULL) {
+ debug("pd is NULL\n");
+ return;
+ }
+
+ dsim_pd = pd;
+}
diff --git a/drivers/video/exynos_mipi_dsi_common.c b/drivers/video/exynos_mipi_dsi_common.c
new file mode 100644
index 0000000..08611b6
--- /dev/null
+++ b/drivers/video/exynos_mipi_dsi_common.c
@@ -0,0 +1,645 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Author: InKi Dae <inki.dae at samsung.com>
+ * Author: Donghwa Lee <dh09.lee at samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <lcd.h>
+#include <asm/errno.h>
+#include <asm/arch/dsim.h>
+#include <asm/arch/mipi_dsim.h>
+#include <linux/types.h>
+#include <linux/fb.h>
+
+#include "exynos_mipi_dsi_lowlevel.h"
+
+#define MHZ (1000 * 1000)
+#define FIN_HZ (24 * MHZ)
+
+#define DFIN_PLL_MIN_HZ (6 * MHZ)
+#define DFIN_PLL_MAX_HZ (12 * MHZ)
+
+#define DFVCO_MIN_HZ (500 * MHZ)
+#define DFVCO_MAX_HZ (1000 * MHZ)
+
+#define TRY_GET_FIFO_TIMEOUT (5000 * 2)
+
+/* MIPI-DSIM status types. */
+enum {
+ DSIM_STATE_INIT, /* should be initialized. */
+ DSIM_STATE_STOP, /* CPU and LCDC are LP mode. */
+ DSIM_STATE_HSCLKEN, /* HS clock was enabled. */
+ DSIM_STATE_ULPS
+};
+
+/* define DSI lane types. */
+enum {
+ DSIM_LANE_CLOCK = (1 << 0),
+ DSIM_LANE_DATA0 = (1 << 1),
+ DSIM_LANE_DATA1 = (1 << 2),
+ DSIM_LANE_DATA2 = (1 << 3),
+ DSIM_LANE_DATA3 = (1 << 4)
+};
+
+static unsigned int dpll_table[15] = {
+ 100, 120, 170, 220, 270,
+ 320, 390, 450, 510, 560,
+ 640, 690, 770, 870, 950 };
+
+static void exynos_mipi_dsi_long_data_wr(struct mipi_dsim_device *dsim,
+ unsigned int data0, unsigned int data1)
+{
+ unsigned int data_cnt = 0, payload = 0;
+
+ /* in case that data count is more then 4 */
+ for (data_cnt = 0; data_cnt < data1; data_cnt += 4) {
+ /*
+ * after sending 4bytes per one time,
+ * send remainder data less then 4.
+ */
+ if ((data1 - data_cnt) < 4) {
+ if ((data1 - data_cnt) == 3) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16;
+ debug("count = 3 payload = %x, %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ } else if ((data1 - data_cnt) == 2) {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8;
+ debug("count = 2 payload = %x, %x %x\n", payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)));
+ } else if ((data1 - data_cnt) == 1) {
+ payload = *(u8 *)(data0 + data_cnt);
+ }
+
+ exynos_mipi_dsi_wr_tx_data(dsim, payload);
+ /* send 4bytes per one time. */
+ } else {
+ payload = *(u8 *)(data0 + data_cnt) |
+ (*(u8 *)(data0 + (data_cnt + 1))) << 8 |
+ (*(u8 *)(data0 + (data_cnt + 2))) << 16 |
+ (*(u8 *)(data0 + (data_cnt + 3))) << 24;
+
+ debug("count = 4 payload = %x, %x %x %x %x\n",
+ payload, *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)),
+ *(u8 *)(data0 + (data_cnt + 3)));
+
+ exynos_mipi_dsi_wr_tx_data(dsim, payload);
+ }
+ }
+}
+
+int exynos_mipi_dsi_wr_data(struct mipi_dsim_device *dsim, unsigned int data_id,
+ unsigned int data0, unsigned int data1)
+{
+ unsigned int timeout = TRY_GET_FIFO_TIMEOUT;
+ unsigned long delay_val, delay;
+ unsigned int check_rx_ack = 0;
+
+ if (dsim->state == DSIM_STATE_ULPS) {
+ debug("state is ULPS.\n");
+
+ return -EINVAL;
+ }
+
+ delay_val = MHZ / dsim->dsim_config->esc_clk;
+ delay = 10 * delay_val;
+
+ udelay(delay * 1000);
+
+ /* only if transfer mode is LPDT, wait SFR becomes empty. */
+ if (dsim->state == DSIM_STATE_STOP) {
+ while (!(exynos_mipi_dsi_get_fifo_state(dsim) &
+ SFR_HEADER_EMPTY)) {
+ if ((timeout--) > 0)
+ udelay(1000);
+ else {
+ debug("SRF header fifo is not empty.\n");
+ return -EINVAL;
+ }
+ }
+ }
+
+ switch (data_id) {
+ /* short packet types of packet types for command. */
+ case MIPI_DSI_GENERIC_SHORT_WRITE_0_PARAM:
+ case MIPI_DSI_GENERIC_SHORT_WRITE_1_PARAM:
+ case MIPI_DSI_GENERIC_SHORT_WRITE_2_PARAM:
+ case MIPI_DSI_DCS_SHORT_WRITE:
+ case MIPI_DSI_DCS_SHORT_WRITE_PARAM:
+ case MIPI_DSI_SET_MAXIMUM_RETURN_PACKET_SIZE:
+ debug("data0 = %x data1 = %x\n",
+ data0, data1);
+ exynos_mipi_dsi_wr_tx_header(dsim, data_id, data0, data1);
+ if (check_rx_ack)
+ /* process response func should be implemented */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* general command */
+ case MIPI_DSI_COLOR_MODE_OFF:
+ case MIPI_DSI_COLOR_MODE_ON:
+ case MIPI_DSI_SHUTDOWN_PERIPHERAL:
+ case MIPI_DSI_TURN_ON_PERIPHERAL:
+ exynos_mipi_dsi_wr_tx_header(dsim, data_id, data0, data1);
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet types for video data */
+ case MIPI_DSI_V_SYNC_START:
+ case MIPI_DSI_V_SYNC_END:
+ case MIPI_DSI_H_SYNC_START:
+ case MIPI_DSI_H_SYNC_END:
+ case MIPI_DSI_END_OF_TRANSMISSION:
+ return 0;
+
+ /* short and response packet types for command */
+ case MIPI_DSI_GENERIC_READ_REQUEST_0_PARAM:
+ case MIPI_DSI_GENERIC_READ_REQUEST_1_PARAM:
+ case MIPI_DSI_GENERIC_READ_REQUEST_2_PARAM:
+ case MIPI_DSI_DCS_READ:
+ exynos_mipi_dsi_clear_all_interrupt(dsim);
+ exynos_mipi_dsi_wr_tx_header(dsim, data_id, data0, data1);
+ /* process response func should be implemented. */
+ return 0;
+
+ /* long packet type and null packet */
+ case MIPI_DSI_NULL_PACKET:
+ case MIPI_DSI_BLANKING_PACKET:
+ return 0;
+ case MIPI_DSI_GENERIC_LONG_WRITE:
+ case MIPI_DSI_DCS_LONG_WRITE:
+ {
+ unsigned int size, data_cnt = 0, payload = 0;
+
+ size = data1 * 4;
+
+ /* if data count is less then 4, then send 3bytes data. */
+ if (data1 < 4) {
+ payload = *(u8 *)(data0) |
+ *(u8 *)(data0 + 1) << 8 |
+ *(u8 *)(data0 + 2) << 16;
+
+ exynos_mipi_dsi_wr_tx_data(dsim, payload);
+
+ debug("count = %d payload = %x,%x %x %x\n",
+ data1, payload,
+ *(u8 *)(data0 + data_cnt),
+ *(u8 *)(data0 + (data_cnt + 1)),
+ *(u8 *)(data0 + (data_cnt + 2)));
+ /* in case that data count is more then 4 */
+ } else
+ exynos_mipi_dsi_long_data_wr(dsim, data0, data1);
+
+ /* put data into header fifo */
+ exynos_mipi_dsi_wr_tx_header(dsim, data_id, data1 & 0xff,
+ (data1 & 0xff00) >> 8);
+
+ }
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+
+ /* packet typo for video data */
+ case MIPI_DSI_PACKED_PIXEL_STREAM_16:
+ case MIPI_DSI_PACKED_PIXEL_STREAM_18:
+ case MIPI_DSI_PIXEL_STREAM_3BYTE_18:
+ case MIPI_DSI_PACKED_PIXEL_STREAM_24:
+ if (check_rx_ack)
+ /* process response func should be implemented. */
+ return 0;
+ else
+ return -EINVAL;
+ default:
+ debug("data id %x is not supported current DSI spec.\n",
+ data_id);
+
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+int exynos_mipi_dsi_pll_on(struct mipi_dsim_device *dsim, unsigned int enable)
+{
+ int sw_timeout;
+
+ if (enable) {
+ sw_timeout = 1000;
+
+ exynos_mipi_dsi_clear_interrupt(dsim);
+ exynos_mipi_dsi_enable_pll(dsim, 1);
+ while (1) {
+ sw_timeout--;
+ if (exynos_mipi_dsi_is_pll_stable(dsim))
+ return 0;
+ if (sw_timeout == 0)
+ return -EINVAL;
+ }
+ } else
+ exynos_mipi_dsi_enable_pll(dsim, 0);
+
+ return 0;
+}
+
+unsigned long exynos_mipi_dsi_change_pll(struct mipi_dsim_device *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler)
+{
+ unsigned long dfin_pll, dfvco, dpll_out;
+ unsigned int i, freq_band = 0xf;
+
+ dfin_pll = (FIN_HZ / pre_divider);
+
+ /******************************************************
+ * Serial Clock(=ByteClk X 8) FreqBand[3:0] *
+ ******************************************************
+ * ~ 99.99 MHz 0000
+ * 100 ~ 119.99 MHz 0001
+ * 120 ~ 159.99 MHz 0010
+ * 160 ~ 199.99 MHz 0011
+ * 200 ~ 239.99 MHz 0100
+ * 140 ~ 319.99 MHz 0101
+ * 320 ~ 389.99 MHz 0110
+ * 390 ~ 449.99 MHz 0111
+ * 450 ~ 509.99 MHz 1000
+ * 510 ~ 559.99 MHz 1001
+ * 560 ~ 639.99 MHz 1010
+ * 640 ~ 689.99 MHz 1011
+ * 690 ~ 769.99 MHz 1100
+ * 770 ~ 869.99 MHz 1101
+ * 870 ~ 949.99 MHz 1110
+ * 950 ~ 1000 MHz 1111
+ ******************************************************/
+ if (dfin_pll < DFIN_PLL_MIN_HZ || dfin_pll > DFIN_PLL_MAX_HZ) {
+ debug("fin_pll range should be 6MHz ~ 12MHz\n");
+ exynos_mipi_dsi_enable_afc(dsim, 0, 0);
+ } else {
+ if (dfin_pll < 7 * MHZ)
+ exynos_mipi_dsi_enable_afc(dsim, 1, 0x1);
+ else if (dfin_pll < 8 * MHZ)
+ exynos_mipi_dsi_enable_afc(dsim, 1, 0x0);
+ else if (dfin_pll < 9 * MHZ)
+ exynos_mipi_dsi_enable_afc(dsim, 1, 0x3);
+ else if (dfin_pll < 10 * MHZ)
+ exynos_mipi_dsi_enable_afc(dsim, 1, 0x2);
+ else if (dfin_pll < 11 * MHZ)
+ exynos_mipi_dsi_enable_afc(dsim, 1, 0x5);
+ else
+ exynos_mipi_dsi_enable_afc(dsim, 1, 0x4);
+ }
+
+ dfvco = dfin_pll * main_divider;
+ debug("dfvco = %lu, dfin_pll = %lu, main_divider = %d\n",
+ dfvco, dfin_pll, main_divider);
+ if (dfvco < DFVCO_MIN_HZ || dfvco > DFVCO_MAX_HZ)
+ debug("fvco range should be 500MHz ~ 1000MHz\n");
+
+ dpll_out = dfvco / (1 << scaler);
+ debug("dpll_out = %lu, dfvco = %lu, scaler = %d\n",
+ dpll_out, dfvco, scaler);
+
+ for (i = 0; i < ARRAY_SIZE(dpll_table); i++) {
+ if (dpll_out < dpll_table[i] * MHZ) {
+ freq_band = i;
+ break;
+ }
+ }
+
+ debug("freq_band = %d\n", freq_band);
+
+ exynos_mipi_dsi_pll_freq(dsim, pre_divider, main_divider, scaler);
+
+ exynos_mipi_dsi_hs_zero_ctrl(dsim, 0);
+ exynos_mipi_dsi_prep_ctrl(dsim, 0);
+
+ /* Freq Band */
+ exynos_mipi_dsi_pll_freq_band(dsim, freq_band);
+
+ /* Stable time */
+ exynos_mipi_dsi_pll_stable_time(dsim,
+ dsim->dsim_config->pll_stable_time);
+
+ /* Enable PLL */
+ debug("FOUT of mipi dphy pll is %luMHz\n",
+ (dpll_out / MHZ));
+
+ return dpll_out;
+}
+
+int exynos_mipi_dsi_set_clock(struct mipi_dsim_device *dsim,
+ unsigned int byte_clk_sel, unsigned int enable)
+{
+ unsigned int esc_div;
+ unsigned long esc_clk_error_rate;
+ unsigned long hs_clk = 0, byte_clk = 0, escape_clk = 0;
+
+ if (enable) {
+ dsim->e_clk_src = byte_clk_sel;
+
+ /* Escape mode clock and byte clock source */
+ exynos_mipi_dsi_set_byte_clock_src(dsim, byte_clk_sel);
+
+ /* DPHY, DSIM Link : D-PHY clock out */
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8) {
+ hs_clk = exynos_mipi_dsi_change_pll(dsim,
+ dsim->dsim_config->p, dsim->dsim_config->m,
+ dsim->dsim_config->s);
+ if (hs_clk == 0) {
+ debug("failed to get hs clock.\n");
+ return -EINVAL;
+ }
+
+ byte_clk = hs_clk / 8;
+ exynos_mipi_dsi_enable_pll_bypass(dsim, 0);
+ exynos_mipi_dsi_pll_on(dsim, 1);
+ /* DPHY : D-PHY clock out, DSIM link : external clock out */
+ } else if (byte_clk_sel == DSIM_EXT_CLK_DIV8)
+ debug("not support EXT CLK source for MIPI DSIM\n");
+ else if (byte_clk_sel == DSIM_EXT_CLK_BYPASS)
+ debug("not support EXT CLK source for MIPI DSIM\n");
+
+ /* escape clock divider */
+ esc_div = byte_clk / (dsim->dsim_config->esc_clk);
+ debug("esc_div = %d, byte_clk = %lu, esc_clk = %lu\n",
+ esc_div, byte_clk, dsim->dsim_config->esc_clk);
+ if ((byte_clk / esc_div) >= (20 * MHZ) ||
+ (byte_clk / esc_div) >
+ dsim->dsim_config->esc_clk)
+ esc_div += 1;
+
+ escape_clk = byte_clk / esc_div;
+ debug("escape_clk = %lu, byte_clk = %lu, esc_div = %d\n",
+ escape_clk, byte_clk, esc_div);
+
+ /* enable escape clock. */
+ exynos_mipi_dsi_enable_byte_clock(dsim, 1);
+
+ /* enable byte clk and escape clock */
+ exynos_mipi_dsi_set_esc_clk_prs(dsim, 1, esc_div);
+ /* escape clock on lane */
+ exynos_mipi_dsi_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 1);
+
+ debug("byte clock is %luMHz\n",
+ (byte_clk / MHZ));
+ debug("escape clock that user's need is %lu\n",
+ (dsim->dsim_config->esc_clk / MHZ));
+ debug("escape clock divider is %x\n", esc_div);
+ debug("escape clock is %luMHz\n",
+ ((byte_clk / esc_div) / MHZ));
+
+ if ((byte_clk / esc_div) > escape_clk) {
+ esc_clk_error_rate = escape_clk /
+ (byte_clk / esc_div);
+ debug("error rate is %lu over.\n",
+ (esc_clk_error_rate / 100));
+ } else if ((byte_clk / esc_div) < (escape_clk)) {
+ esc_clk_error_rate = (byte_clk / esc_div) /
+ escape_clk;
+ debug("error rate is %lu under.\n",
+ (esc_clk_error_rate / 100));
+ }
+ } else {
+ exynos_mipi_dsi_enable_esc_clk_on_lane(dsim,
+ (DSIM_LANE_CLOCK | dsim->data_lane), 0);
+ exynos_mipi_dsi_set_esc_clk_prs(dsim, 0, 0);
+
+ /* disable escape clock. */
+ exynos_mipi_dsi_enable_byte_clock(dsim, 0);
+
+ if (byte_clk_sel == DSIM_PLL_OUT_DIV8)
+ exynos_mipi_dsi_pll_on(dsim, 0);
+ }
+
+ return 0;
+}
+
+int exynos_mipi_dsi_init_dsim(struct mipi_dsim_device *dsim)
+{
+ dsim->state = DSIM_STATE_INIT;
+
+ switch (dsim->dsim_config->e_no_data_lane) {
+ case DSIM_DATA_LANE_1:
+ dsim->data_lane = DSIM_LANE_DATA0;
+ break;
+ case DSIM_DATA_LANE_2:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1;
+ break;
+ case DSIM_DATA_LANE_3:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2;
+ break;
+ case DSIM_DATA_LANE_4:
+ dsim->data_lane = DSIM_LANE_DATA0 | DSIM_LANE_DATA1 |
+ DSIM_LANE_DATA2 | DSIM_LANE_DATA3;
+ break;
+ default:
+ debug("data lane is invalid.\n");
+ return -EINVAL;
+ };
+
+ exynos_mipi_dsi_sw_reset(dsim);
+ exynos_mipi_dsi_dp_dn_swap(dsim, 0);
+
+ return 0;
+}
+
+int exynos_mipi_dsi_enable_frame_done_int(struct mipi_dsim_device *dsim,
+ unsigned int enable)
+{
+ /* enable only frame done interrupt */
+ exynos_mipi_dsi_set_interrupt_mask(dsim, INTMSK_FRAME_DONE, enable);
+
+ return 0;
+}
+
+static void convert_to_fb_videomode(struct fb_videomode *mode1,
+ vidinfo_t *mode2)
+{
+ mode1->xres = mode2->vl_width;
+ mode1->yres = mode2->vl_height;
+ mode1->upper_margin = mode2->vl_vfpd;
+ mode1->lower_margin = mode2->vl_vbpd;
+ mode1->left_margin = mode2->vl_hfpd;
+ mode1->right_margin = mode2->vl_hbpd;
+ mode1->vsync_len = mode2->vl_vspw;
+ mode1->hsync_len = mode2->vl_hspw;
+}
+
+int exynos_mipi_dsi_set_display_mode(struct mipi_dsim_device *dsim,
+ struct mipi_dsim_config *dsim_config)
+{
+ struct exynos_platform_mipi_dsim *dsim_pd;
+ struct fb_videomode lcd_video;
+ vidinfo_t *vid;
+
+ dsim_pd = (struct exynos_platform_mipi_dsim *)dsim->pd;
+ vid = (vidinfo_t *)dsim_pd->lcd_panel_info;
+
+ convert_to_fb_videomode(&lcd_video, vid);
+
+ /* in case of VIDEO MODE (RGB INTERFACE), it sets polarities. */
+ if (dsim->dsim_config->e_interface == (u32) DSIM_VIDEO) {
+ if (dsim->dsim_config->auto_vertical_cnt == 0) {
+ exynos_mipi_dsi_set_main_disp_vporch(dsim,
+ vid->vl_cmd_allow_len,
+ lcd_video.upper_margin,
+ lcd_video.lower_margin);
+ exynos_mipi_dsi_set_main_disp_hporch(dsim,
+ lcd_video.left_margin,
+ lcd_video.right_margin);
+ exynos_mipi_dsi_set_main_disp_sync_area(dsim,
+ lcd_video.vsync_len,
+ lcd_video.hsync_len);
+ }
+ }
+
+ exynos_mipi_dsi_set_main_disp_resol(dsim, lcd_video.xres,
+ lcd_video.yres);
+
+ exynos_mipi_dsi_display_config(dsim, dsim->dsim_config);
+
+ debug("lcd panel ==> width = %d, height = %d\n",
+ lcd_video.xres, lcd_video.yres);
+
+ return 0;
+}
+
+int exynos_mipi_dsi_init_link(struct mipi_dsim_device *dsim)
+{
+ unsigned int time_out = 100;
+
+ switch (dsim->state) {
+ case DSIM_STATE_INIT:
+ exynos_mipi_dsi_init_fifo_pointer(dsim, 0x1f);
+
+ /* dsi configuration */
+ exynos_mipi_dsi_init_config(dsim);
+ exynos_mipi_dsi_enable_lane(dsim, DSIM_LANE_CLOCK, 1);
+ exynos_mipi_dsi_enable_lane(dsim, dsim->data_lane, 1);
+
+ /* set clock configuration */
+ exynos_mipi_dsi_set_clock(dsim,
+ dsim->dsim_config->e_byte_clk, 1);
+
+ /* check clock and data lane state are stop state */
+ while (!(exynos_mipi_dsi_is_lane_state(dsim))) {
+ time_out--;
+ if (time_out == 0) {
+ debug("DSI Master is not stop state.\n");
+ debug("Check initialization process\n");
+
+ return -EINVAL;
+ }
+ }
+
+ if (time_out != 0) {
+ debug("DSI Master driver has been completed.\n");
+ debug("DSI Master state is stop state\n");
+ }
+
+ dsim->state = DSIM_STATE_STOP;
+
+ /* BTA sequence counters */
+ exynos_mipi_dsi_set_stop_state_counter(dsim,
+ dsim->dsim_config->stop_holding_cnt);
+ exynos_mipi_dsi_set_bta_timeout(dsim,
+ dsim->dsim_config->bta_timeout);
+ exynos_mipi_dsi_set_lpdr_timeout(dsim,
+ dsim->dsim_config->rx_timeout);
+
+
+ return 0;
+ default:
+ debug("DSI Master is already init.\n");
+ return 0;
+ }
+
+ return 0;
+}
+
+int exynos_mipi_dsi_set_hs_enable(struct mipi_dsim_device *dsim)
+{
+ if (dsim->state == DSIM_STATE_STOP) {
+ if (dsim->e_clk_src != DSIM_EXT_CLK_BYPASS) {
+ dsim->state = DSIM_STATE_HSCLKEN;
+
+ /* set LCDC and CPU transfer mode to HS. */
+ exynos_mipi_dsi_set_lcdc_transfer_mode(dsim, 0);
+ exynos_mipi_dsi_set_cpu_transfer_mode(dsim, 0);
+
+ exynos_mipi_dsi_enable_hs_clock(dsim, 1);
+
+ return 0;
+ } else
+ debug("clock source is external bypass.\n");
+ } else
+ debug("DSIM is not stop state.\n");
+
+ return 0;
+}
+
+int exynos_mipi_dsi_set_data_transfer_mode(struct mipi_dsim_device *dsim,
+ unsigned int mode)
+{
+ if (mode) {
+ if (dsim->state != DSIM_STATE_HSCLKEN) {
+ debug("HS Clock lane is not enabled.\n");
+ return -EINVAL;
+ }
+
+ exynos_mipi_dsi_set_lcdc_transfer_mode(dsim, 0);
+ } else {
+ if (dsim->state == DSIM_STATE_INIT || dsim->state ==
+ DSIM_STATE_ULPS) {
+ debug("DSI Master is not STOP or HSDT state.\n");
+ return -EINVAL;
+ }
+
+ exynos_mipi_dsi_set_cpu_transfer_mode(dsim, 0);
+ }
+
+ return 0;
+}
+
+int exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device *dsim)
+{
+ return _exynos_mipi_dsi_get_frame_done_status(dsim);
+}
+
+int exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim)
+{
+ _exynos_mipi_dsi_clear_frame_done(dsim);
+
+ return 0;
+}
diff --git a/drivers/video/exynos_mipi_dsi_common.h b/drivers/video/exynos_mipi_dsi_common.h
new file mode 100644
index 0000000..4d80679
--- /dev/null
+++ b/drivers/video/exynos_mipi_dsi_common.h
@@ -0,0 +1,48 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Author: InKi Dae <inki.dae at samsung.com>
+ * Author: Donghwa Lee <dh09.lee at samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <linux/fb.h>
+
+#ifndef _EXYNOS_MIPI_DSI_COMMON_H
+#define _EXYNOS_MIPI_DSI_COMMON_H
+
+int exynos_mipi_dsi_wr_data(struct mipi_dsim_device *dsim, unsigned int data_id,
+ unsigned int data0, unsigned int data1);
+int exynos_mipi_dsi_pll_on(struct mipi_dsim_device *dsim, unsigned int enable);
+unsigned long exynos_mipi_dsi_change_pll(struct mipi_dsim_device *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler);
+int exynos_mipi_dsi_set_clock(struct mipi_dsim_device *dsim,
+ unsigned int byte_clk_sel, unsigned int enable);
+int exynos_mipi_dsi_init_dsim(struct mipi_dsim_device *dsim);
+int exynos_mipi_dsi_set_display_mode(struct mipi_dsim_device *dsim,
+ struct mipi_dsim_config *dsim_info);
+int exynos_mipi_dsi_init_link(struct mipi_dsim_device *dsim);
+int exynos_mipi_dsi_set_hs_enable(struct mipi_dsim_device *dsim);
+int exynos_mipi_dsi_set_data_transfer_mode(struct mipi_dsim_device *dsim,
+ unsigned int mode);
+int exynos_mipi_dsi_enable_frame_done_int(struct mipi_dsim_device *dsim,
+ unsigned int enable);
+int exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device *dsim);
+int exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim);
+
+#endif /* _EXYNOS_MIPI_DSI_COMMON_H */
diff --git a/drivers/video/exynos_mipi_dsi_lowlevel.c b/drivers/video/exynos_mipi_dsi_lowlevel.c
new file mode 100644
index 0000000..cc52ede
--- /dev/null
+++ b/drivers/video/exynos_mipi_dsi_lowlevel.c
@@ -0,0 +1,669 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Author: InKi Dae <inki.dae at samsung.com>
+ * Author: Donghwa Lee <dh09.lee at samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#include <common.h>
+#include <lcd.h>
+#include <asm/errno.h>
+#include <asm/arch/dsim.h>
+#include <asm/arch/mipi_dsim.h>
+#include <asm/arch/power.h>
+#include <asm/arch/cpu.h>
+#include <linux/types.h>
+#include <linux/list.h>
+
+#include <asm/arch/mipi_dsim.h>
+
+#include "exynos_mipi_dsi_lowlevel.h"
+#include "exynos_mipi_dsi_common.h"
+
+void exynos_mipi_dsi_func_reset(struct mipi_dsim_device *dsim)
+{
+ unsigned int reg;
+
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = readl(&mipi_dsim->swrst);
+
+ reg |= DSIM_FUNCRST;
+
+ writel(reg, &mipi_dsim->swrst);
+}
+
+void exynos_mipi_dsi_sw_reset(struct mipi_dsim_device *dsim)
+{
+ unsigned int reg = 0;
+
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = readl(&mipi_dsim->swrst);
+
+ reg |= DSIM_SWRST;
+ reg |= DSIM_FUNCRST;
+
+ writel(reg, &mipi_dsim->swrst);
+}
+
+void exynos_mipi_dsi_sw_release(struct mipi_dsim_device *dsim)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->intsrc);
+
+ reg |= INTSRC_SWRST_RELEASE;
+
+ writel(reg, &mipi_dsim->intsrc);
+
+ reg = 0;
+ reg = readl(&mipi_dsim->intsrc);
+}
+
+void exynos_mipi_dsi_set_interrupt_mask(struct mipi_dsim_device *dsim,
+ unsigned int mode, unsigned int mask)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->intmsk);
+
+ if (mask)
+ reg |= mode;
+ else
+ reg &= ~mode;
+
+ writel(reg, &mipi_dsim->intmsk);
+}
+
+void exynos_mipi_dsi_init_fifo_pointer(struct mipi_dsim_device *dsim,
+ unsigned int cfg)
+{
+ unsigned int reg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = readl(&mipi_dsim->fifoctrl);
+
+ writel(reg & ~(cfg), &mipi_dsim->fifoctrl);
+ udelay(10 * 1000);
+ reg |= cfg;
+
+ writel(reg, &mipi_dsim->fifoctrl);
+}
+
+/*
+ * this function set PLL P, M and S value in D-PHY
+ */
+void exynos_mipi_dsi_set_phy_tunning(struct mipi_dsim_device *dsim,
+ unsigned int value)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ writel(DSIM_AFC_CTL(value), &mipi_dsim->phyacchr);
+}
+
+void exynos_mipi_dsi_set_main_disp_resol(struct mipi_dsim_device *dsim,
+ unsigned int width_resol, unsigned int height_resol)
+{
+ unsigned int reg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ /* standby should be set after configuration so set to not ready*/
+ reg = (readl(&mipi_dsim->mdresol)) & ~(DSIM_MAIN_STAND_BY);
+ writel(reg, &mipi_dsim->mdresol);
+
+ /* reset resolution */
+ reg &= ~(DSIM_MAIN_VRESOL(0x7ff) | DSIM_MAIN_HRESOL(0x7ff));
+ reg |= DSIM_MAIN_VRESOL(height_resol) | DSIM_MAIN_HRESOL(width_resol);
+
+ reg |= DSIM_MAIN_STAND_BY;
+ writel(reg, &mipi_dsim->mdresol);
+}
+
+void exynos_mipi_dsi_set_main_disp_vporch(struct mipi_dsim_device *dsim,
+ unsigned int cmd_allow, unsigned int vfront, unsigned int vback)
+{
+ unsigned int reg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = (readl(&mipi_dsim->mvporch)) &
+ ~((DSIM_CMD_ALLOW_MASK) | (DSIM_STABLE_VFP_MASK) |
+ (DSIM_MAIN_VBP_MASK));
+
+ reg |= ((cmd_allow & 0xf) << DSIM_CMD_ALLOW_SHIFT) |
+ ((vfront & 0x7ff) << DSIM_STABLE_VFP_SHIFT) |
+ ((vback & 0x7ff) << DSIM_MAIN_VBP_SHIFT);
+
+ writel(reg, &mipi_dsim->mvporch);
+}
+
+void exynos_mipi_dsi_set_main_disp_hporch(struct mipi_dsim_device *dsim,
+ unsigned int front, unsigned int back)
+{
+ unsigned int reg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = (readl(&mipi_dsim->mhporch)) &
+ ~((DSIM_MAIN_HFP_MASK) | (DSIM_MAIN_HBP_MASK));
+
+ reg |= (front << DSIM_MAIN_HFP_SHIFT) | (back << DSIM_MAIN_HBP_SHIFT);
+
+ writel(reg, &mipi_dsim->mhporch);
+}
+
+void exynos_mipi_dsi_set_main_disp_sync_area(struct mipi_dsim_device *dsim,
+ unsigned int vert, unsigned int hori)
+{
+ unsigned int reg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = (readl(&mipi_dsim->msync)) &
+ ~((DSIM_MAIN_VSA_MASK) | (DSIM_MAIN_HSA_MASK));
+
+ reg |= ((vert & 0x3ff) << DSIM_MAIN_VSA_SHIFT) |
+ (hori << DSIM_MAIN_HSA_SHIFT);
+
+ writel(reg, &mipi_dsim->msync);
+}
+
+void exynos_mipi_dsi_set_sub_disp_resol(struct mipi_dsim_device *dsim,
+ unsigned int vert, unsigned int hori)
+{
+ unsigned int reg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = (readl(&mipi_dsim->sdresol)) &
+ ~(DSIM_SUB_STANDY_MASK);
+
+ writel(reg, &mipi_dsim->sdresol);
+
+ reg &= ~(DSIM_SUB_VRESOL_MASK) | ~(DSIM_SUB_HRESOL_MASK);
+ reg |= ((vert & 0x7ff) << DSIM_SUB_VRESOL_SHIFT) |
+ ((hori & 0x7ff) << DSIM_SUB_HRESOL_SHIFT);
+ writel(reg, &mipi_dsim->sdresol);
+
+ /* DSIM STANDBY */
+ reg |= (1 << DSIM_SUB_STANDY_SHIFT);
+ writel(reg, &mipi_dsim->sdresol);
+}
+
+void exynos_mipi_dsi_init_config(struct mipi_dsim_device *dsim)
+{
+ struct mipi_dsim_config *dsim_config = dsim->dsim_config;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int cfg = (readl(&mipi_dsim->config)) &
+ ~((1 << DSIM_EOT_PACKET_SHIFT) |
+ (0x1f << DSIM_HSA_MODE_SHIFT) |
+ (0x3 << DSIM_NUM_OF_DATALANE_SHIFT));
+
+ cfg = (dsim_config->auto_flush << DSIM_AUTO_FLUSH_SHIFT) |
+ (dsim_config->eot_disable << DSIM_EOT_PACKET_SHIFT) |
+ (dsim_config->auto_vertical_cnt << DSIM_AUTO_MODE_SHIFT) |
+ (dsim_config->hse << DSIM_HSE_MODE_SHIFT) |
+ (dsim_config->hfp << DSIM_HFP_MODE_SHIFT) |
+ (dsim_config->hbp << DSIM_HBP_MODE_SHIFT) |
+ (dsim_config->hsa << DSIM_HSA_MODE_SHIFT) |
+ (dsim_config->e_no_data_lane << DSIM_NUM_OF_DATALANE_SHIFT);
+
+ writel(cfg, &mipi_dsim->config);
+}
+
+void exynos_mipi_dsi_display_config(struct mipi_dsim_device *dsim,
+ struct mipi_dsim_config *dsim_config)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ u32 reg = (readl(&mipi_dsim->config)) &
+ ~((0x3 << DSIM_BURST_MODE_SHIFT) | (1 << DSIM_VIDEO_MODE_SHIFT)
+ | (0x3 << DSIM_MAINVC_SHIFT) | (0x7 << DSIM_MAINPIX_SHIFT)
+ | (0x3 << DSIM_SUBVC_SHIFT) | (0x7 << DSIM_SUBPIX_SHIFT));
+
+ if (dsim_config->e_interface == DSIM_VIDEO)
+ reg |= (1 << DSIM_VIDEO_MODE_SHIFT);
+ else if (dsim_config->e_interface == DSIM_COMMAND)
+ reg &= ~(1 << DSIM_VIDEO_MODE_SHIFT);
+ else {
+ printf("unknown lcd type.\n");
+ return;
+ }
+
+ /* main lcd */
+ reg |= ((u8) (dsim_config->e_burst_mode) & 0x3) << DSIM_BURST_MODE_SHIFT
+ | ((u8) (dsim_config->e_virtual_ch) & 0x3) << DSIM_MAINVC_SHIFT
+ | ((u8) (dsim_config->e_pixel_format) & 0x7) << DSIM_MAINPIX_SHIFT;
+
+ writel(reg, &mipi_dsim->config);
+}
+
+void exynos_mipi_dsi_enable_lane(struct mipi_dsim_device *dsim,
+ unsigned int lane, unsigned int enable)
+{
+ unsigned int reg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = readl(&mipi_dsim->config);
+
+ if (enable)
+ reg |= DSIM_LANE_ENx(lane);
+ else
+ reg &= ~DSIM_LANE_ENx(lane);
+
+ writel(reg, &mipi_dsim->config);
+}
+
+
+void exynos_mipi_dsi_set_data_lane_number(struct mipi_dsim_device *dsim,
+ unsigned int count)
+{
+ unsigned int cfg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ /* get the data lane number. */
+ cfg = DSIM_NUM_OF_DATA_LANE(count);
+
+ writel(cfg, &mipi_dsim->config);
+}
+
+void exynos_mipi_dsi_enable_afc(struct mipi_dsim_device *dsim,
+ unsigned int enable, unsigned int afc_code)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->phyacchr);
+
+ reg = 0;
+
+ if (enable) {
+ reg |= DSIM_AFC_EN;
+ reg &= ~(0x7 << DSIM_AFC_CTL_SHIFT);
+ reg |= DSIM_AFC_CTL(afc_code);
+ } else
+ reg &= ~DSIM_AFC_EN;
+
+ writel(reg, &mipi_dsim->phyacchr);
+}
+
+void exynos_mipi_dsi_enable_pll_bypass(struct mipi_dsim_device *dsim,
+ unsigned int enable)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
+ ~(DSIM_PLL_BYPASS_EXTERNAL);
+
+ reg |= enable << DSIM_PLL_BYPASS_SHIFT;
+
+ writel(reg, &mipi_dsim->clkctrl);
+}
+
+void exynos_mipi_dsi_pll_freq_band(struct mipi_dsim_device *dsim,
+ unsigned int freq_band)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
+ ~(0x1f << DSIM_FREQ_BAND_SHIFT);
+
+ reg |= ((freq_band & 0x1f) << DSIM_FREQ_BAND_SHIFT);
+
+ writel(reg, &mipi_dsim->pllctrl);
+}
+
+void exynos_mipi_dsi_pll_freq(struct mipi_dsim_device *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
+ ~(0x7ffff << 1);
+
+ reg |= ((pre_divider & 0x3f) << DSIM_PREDIV_SHIFT) |
+ ((main_divider & 0x1ff) << DSIM_MAIN_SHIFT) |
+ ((scaler & 0x7) << DSIM_SCALER_SHIFT);
+
+ writel(reg, &mipi_dsim->pllctrl);
+}
+
+void exynos_mipi_dsi_pll_stable_time(struct mipi_dsim_device *dsim,
+ unsigned int lock_time)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ writel(lock_time, &mipi_dsim->plltmr);
+}
+
+void exynos_mipi_dsi_enable_pll(struct mipi_dsim_device *dsim,
+ unsigned int enable)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
+ ~(0x1 << DSIM_PLL_EN_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_PLL_EN_SHIFT);
+
+ writel(reg, &mipi_dsim->pllctrl);
+}
+
+void exynos_mipi_dsi_set_byte_clock_src(struct mipi_dsim_device *dsim,
+ unsigned int src)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
+ ~(0x3 << DSIM_BYTE_CLK_SRC_SHIFT);
+
+ reg |= ((unsigned int) src) << DSIM_BYTE_CLK_SRC_SHIFT;
+
+ writel(reg, &mipi_dsim->clkctrl);
+}
+
+void exynos_mipi_dsi_enable_byte_clock(struct mipi_dsim_device *dsim,
+ unsigned int enable)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
+ ~(1 << DSIM_BYTE_CLKEN_SHIFT);
+
+ reg |= enable << DSIM_BYTE_CLKEN_SHIFT;
+
+ writel(reg, &mipi_dsim->clkctrl);
+}
+
+void exynos_mipi_dsi_set_esc_clk_prs(struct mipi_dsim_device *dsim,
+ unsigned int enable, unsigned int prs_val)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
+ ~((1 << DSIM_ESC_CLKEN_SHIFT) | (0xffff));
+
+ reg |= enable << DSIM_ESC_CLKEN_SHIFT;
+ if (enable)
+ reg |= prs_val;
+
+ writel(reg, &mipi_dsim->clkctrl);
+}
+
+void exynos_mipi_dsi_enable_esc_clk_on_lane(struct mipi_dsim_device *dsim,
+ unsigned int lane_sel, unsigned int enable)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->clkctrl);
+
+ if (enable)
+ reg |= DSIM_LANE_ESC_CLKEN(lane_sel);
+ else
+
+ reg &= ~DSIM_LANE_ESC_CLKEN(lane_sel);
+
+ writel(reg, &mipi_dsim->clkctrl);
+}
+
+void exynos_mipi_dsi_force_dphy_stop_state(struct mipi_dsim_device *dsim,
+ unsigned int enable)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->escmode)) &
+ ~(0x1 << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ reg |= ((enable & 0x1) << DSIM_FORCE_STOP_STATE_SHIFT);
+
+ writel(reg, &mipi_dsim->escmode);
+}
+
+unsigned int exynos_mipi_dsi_is_lane_state(struct mipi_dsim_device *dsim)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->status);
+
+ /**
+ * check clock and data lane states.
+ * if MIPI-DSI controller was enabled at bootloader then
+ * TX_READY_HS_CLK is enabled otherwise STOP_STATE_CLK.
+ * so it should be checked for two case.
+ */
+ if ((reg & DSIM_STOP_STATE_DAT(0xf)) &&
+ ((reg & DSIM_STOP_STATE_CLK) ||
+ (reg & DSIM_TX_READY_HS_CLK)))
+ return 1;
+ else
+ return 0;
+}
+
+void exynos_mipi_dsi_set_stop_state_counter(struct mipi_dsim_device *dsim,
+ unsigned int cnt_val)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->escmode)) &
+ ~(0x7ff << DSIM_STOP_STATE_CNT_SHIFT);
+
+ reg |= ((cnt_val & 0x7ff) << DSIM_STOP_STATE_CNT_SHIFT);
+
+ writel(reg, &mipi_dsim->escmode);
+}
+
+void exynos_mipi_dsi_set_bta_timeout(struct mipi_dsim_device *dsim,
+ unsigned int timeout)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->timeout)) &
+ ~(0xff << DSIM_BTA_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_BTA_TOUT_SHIFT);
+
+ writel(reg, &mipi_dsim->timeout);
+}
+
+void exynos_mipi_dsi_set_lpdr_timeout(struct mipi_dsim_device *dsim,
+ unsigned int timeout)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->timeout)) &
+ ~(0xffff << DSIM_LPDR_TOUT_SHIFT);
+
+ reg |= (timeout << DSIM_LPDR_TOUT_SHIFT);
+
+ writel(reg, &mipi_dsim->timeout);
+}
+
+void exynos_mipi_dsi_set_cpu_transfer_mode(struct mipi_dsim_device *dsim,
+ unsigned int lp)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->escmode);
+
+ reg &= ~DSIM_CMD_LPDT_LP;
+
+ if (lp)
+ reg |= DSIM_CMD_LPDT_LP;
+
+ writel(reg, &mipi_dsim->escmode);
+}
+
+void exynos_mipi_dsi_set_lcdc_transfer_mode(struct mipi_dsim_device *dsim,
+ unsigned int lp)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->escmode);
+
+ reg &= ~DSIM_TX_LPDT_LP;
+
+ if (lp)
+ reg |= DSIM_TX_LPDT_LP;
+
+ writel(reg, &mipi_dsim->escmode);
+}
+
+void exynos_mipi_dsi_enable_hs_clock(struct mipi_dsim_device *dsim,
+ unsigned int enable)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->clkctrl)) &
+ ~(1 << DSIM_TX_REQUEST_HSCLK_SHIFT);
+
+ reg |= enable << DSIM_TX_REQUEST_HSCLK_SHIFT;
+
+ writel(reg, &mipi_dsim->clkctrl);
+}
+
+void exynos_mipi_dsi_dp_dn_swap(struct mipi_dsim_device *dsim,
+ unsigned int swap_en)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->phyacchr1);
+
+ reg &= ~(0x3 << DSIM_DPDN_SWAP_DATA_SHIFT);
+ reg |= (swap_en & 0x3) << DSIM_DPDN_SWAP_DATA_SHIFT;
+
+ writel(reg, &mipi_dsim->phyacchr1);
+}
+
+void exynos_mipi_dsi_hs_zero_ctrl(struct mipi_dsim_device *dsim,
+ unsigned int hs_zero)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
+ ~(0xf << DSIM_ZEROCTRL_SHIFT);
+
+ reg |= ((hs_zero & 0xf) << DSIM_ZEROCTRL_SHIFT);
+
+ writel(reg, &mipi_dsim->pllctrl);
+}
+
+void exynos_mipi_dsi_prep_ctrl(struct mipi_dsim_device *dsim, unsigned int prep)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (readl(&mipi_dsim->pllctrl)) &
+ ~(0x7 << DSIM_PRECTRL_SHIFT);
+
+ reg |= ((prep & 0x7) << DSIM_PRECTRL_SHIFT);
+
+ writel(reg, &mipi_dsim->pllctrl);
+}
+
+void exynos_mipi_dsi_clear_interrupt(struct mipi_dsim_device *dsim)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->intsrc);
+
+ reg |= INTSRC_PLL_STABLE;
+
+ writel(reg, &mipi_dsim->intsrc);
+}
+
+void exynos_mipi_dsi_clear_all_interrupt(struct mipi_dsim_device *dsim)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->intsrc);
+
+ reg |= 0xffffffff;
+
+ writel(reg, &mipi_dsim->intsrc);
+}
+
+unsigned int exynos_mipi_dsi_is_pll_stable(struct mipi_dsim_device *dsim)
+{
+ unsigned int reg;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ reg = readl(&mipi_dsim->status);
+
+ return reg & DSIM_PLL_STABLE ? 1 : 0;
+}
+
+unsigned int exynos_mipi_dsi_get_fifo_state(struct mipi_dsim_device *dsim)
+{
+ unsigned int ret;
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ ret = readl(&mipi_dsim->fifoctrl) & ~(0x1f);
+
+ return ret;
+}
+
+void exynos_mipi_dsi_wr_tx_header(struct mipi_dsim_device *dsim,
+ unsigned int di, unsigned int data0, unsigned int data1)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = (DSIM_PKTHDR_DAT1(data1) | DSIM_PKTHDR_DAT0(data0) |
+ DSIM_PKTHDR_DI(di));
+
+ writel(reg, &mipi_dsim->pkthdr);
+}
+
+unsigned int _exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device
+ *dsim)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->intsrc);
+
+ return (reg & INTSRC_FRAME_DONE) ? 1 : 0;
+}
+
+void _exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+ unsigned int reg = readl(&mipi_dsim->intsrc);
+
+ writel(reg | INTSRC_FRAME_DONE, &mipi_dsim->intsrc);
+}
+
+void exynos_mipi_dsi_wr_tx_data(struct mipi_dsim_device *dsim,
+ unsigned int tx_data)
+{
+ struct exynos_mipi_dsim *mipi_dsim =
+ (struct exynos_mipi_dsim *)samsung_get_base_mipi_dsim();
+
+ writel(tx_data, &mipi_dsim->payload);
+}
diff --git a/drivers/video/exynos_mipi_dsi_lowlevel.h b/drivers/video/exynos_mipi_dsi_lowlevel.h
new file mode 100644
index 0000000..4b8c441
--- /dev/null
+++ b/drivers/video/exynos_mipi_dsi_lowlevel.h
@@ -0,0 +1,111 @@
+/*
+ * Copyright (C) 2012 Samsung Electronics
+ *
+ * Author: InKi Dae <inki.dae at samsung.com>
+ * Author: Donghwa Lee <dh09.lee at samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of
+ * the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
+ * MA 02111-1307 USA
+ */
+
+#ifndef _EXYNOS_MIPI_DSI_LOWLEVEL_H
+#define _EXYNOS_MIPI_DSI_LOWLEVEL_H
+
+void exynos_mipi_dsi_register(struct mipi_dsim_device *dsim);
+void exynos_mipi_dsi_func_reset(struct mipi_dsim_device *dsim);
+void exynos_mipi_dsi_sw_reset(struct mipi_dsim_device *dsim);
+void exynos_mipi_dsi_sw_release(struct mipi_dsim_device *dsim);
+void exynos_mipi_dsi_set_interrupt_mask(struct mipi_dsim_device *dsim,
+ unsigned int mode, unsigned int mask);
+void exynos_mipi_dsi_set_data_lane_number(struct mipi_dsim_device *dsim,
+ unsigned int count);
+void exynos_mipi_dsi_init_fifo_pointer(struct mipi_dsim_device *dsim,
+ unsigned int cfg);
+void exynos_mipi_dsi_set_phy_tunning(struct mipi_dsim_device *dsim,
+ unsigned int value);
+void exynos_mipi_dsi_set_phy_tunning(struct mipi_dsim_device *dsim,
+ unsigned int value);
+void exynos_mipi_dsi_set_main_disp_resol(struct mipi_dsim_device *dsim,
+ unsigned int width_resol, unsigned int height_resol);
+void exynos_mipi_dsi_set_main_disp_vporch(struct mipi_dsim_device *dsim,
+ unsigned int cmd_allow, unsigned int vfront, unsigned int vback);
+void exynos_mipi_dsi_set_main_disp_hporch(struct mipi_dsim_device *dsim,
+ unsigned int front, unsigned int back);
+void exynos_mipi_dsi_set_main_disp_sync_area(struct mipi_dsim_device *dsim,
+ unsigned int vert, unsigned int hori);
+void exynos_mipi_dsi_set_sub_disp_resol(struct mipi_dsim_device *dsim,
+ unsigned int vert, unsigned int hori);
+void exynos_mipi_dsi_init_config(struct mipi_dsim_device *dsim);
+void exynos_mipi_dsi_display_config(struct mipi_dsim_device *dsim,
+ struct mipi_dsim_config *dsim_config);
+void exynos_mipi_dsi_set_data_lane_number(struct mipi_dsim_device *dsim,
+ unsigned int count);
+void exynos_mipi_dsi_enable_lane(struct mipi_dsim_device *dsim,
+ unsigned int lane, unsigned int enable);
+void exynos_mipi_dsi_enable_afc(struct mipi_dsim_device *dsim,
+ unsigned int enable, unsigned int afc_code);
+void exynos_mipi_dsi_enable_pll_bypass(struct mipi_dsim_device *dsim,
+ unsigned int enable);
+void exynos_mipi_dsi_pll_freq_band(struct mipi_dsim_device *dsim,
+ unsigned int freq_band);
+void exynos_mipi_dsi_pll_freq(struct mipi_dsim_device *dsim,
+ unsigned int pre_divider, unsigned int main_divider,
+ unsigned int scaler);
+void exynos_mipi_dsi_pll_stable_time(struct mipi_dsim_device *dsim,
+ unsigned int lock_time);
+void exynos_mipi_dsi_enable_pll(struct mipi_dsim_device *dsim,
+ unsigned int enable);
+void exynos_mipi_dsi_set_byte_clock_src(struct mipi_dsim_device *dsim,
+ unsigned int src);
+void exynos_mipi_dsi_enable_byte_clock(struct mipi_dsim_device *dsim,
+ unsigned int enable);
+void exynos_mipi_dsi_set_esc_clk_prs(struct mipi_dsim_device *dsim,
+ unsigned int enable, unsigned int prs_val);
+void exynos_mipi_dsi_enable_esc_clk_on_lane(struct mipi_dsim_device *dsim,
+ unsigned int lane_sel, unsigned int enable);
+void exynos_mipi_dsi_force_dphy_stop_state(struct mipi_dsim_device *dsim,
+ unsigned int enable);
+unsigned int exynos_mipi_dsi_is_lane_state(struct mipi_dsim_device *dsim);
+void exynos_mipi_dsi_set_stop_state_counter(struct mipi_dsim_device *dsim,
+ unsigned int cnt_val);
+void exynos_mipi_dsi_set_bta_timeout(struct mipi_dsim_device *dsim,
+ unsigned int timeout);
+void exynos_mipi_dsi_set_lpdr_timeout(struct mipi_dsim_device *dsim,
+ unsigned int timeout);
+void exynos_mipi_dsi_set_lcdc_transfer_mode(struct mipi_dsim_device *dsim,
+ unsigned int lp);
+void exynos_mipi_dsi_set_cpu_transfer_mode(struct mipi_dsim_device *dsim,
+ unsigned int lp);
+void exynos_mipi_dsi_enable_hs_clock(struct mipi_dsim_device *dsim,
+ unsigned int enable);
+void exynos_mipi_dsi_dp_dn_swap(struct mipi_dsim_device *dsim,
+ unsigned int swap_en);
+void exynos_mipi_dsi_hs_zero_ctrl(struct mipi_dsim_device *dsim,
+ unsigned int hs_zero);
+void exynos_mipi_dsi_prep_ctrl(struct mipi_dsim_device *dsim,
+ unsigned int prep);
+void exynos_mipi_dsi_clear_interrupt(struct mipi_dsim_device *dsim);
+void exynos_mipi_dsi_clear_all_interrupt(struct mipi_dsim_device *dsim);
+unsigned int exynos_mipi_dsi_is_pll_stable(struct mipi_dsim_device *dsim);
+unsigned int exynos_mipi_dsi_get_fifo_state(struct mipi_dsim_device *dsim);
+unsigned int _exynos_mipi_dsi_get_frame_done_status(struct mipi_dsim_device
+ *dsim);
+void _exynos_mipi_dsi_clear_frame_done(struct mipi_dsim_device *dsim);
+void exynos_mipi_dsi_wr_tx_header(struct mipi_dsim_device *dsim,
+ unsigned int di, unsigned int data0, unsigned int data1);
+void exynos_mipi_dsi_wr_tx_data(struct mipi_dsim_device *dsim,
+ unsigned int tx_data);
+
+#endif /* _EXYNOS_MIPI_DSI_LOWLEVEL_H */
--
1.7.4.1
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