[U-Boot] [PATCH v3 2/4] rockchip: video: Add mipi display support for rk3288
Eric Gao
eric.gao at rock-chips.com
Tue May 2 09:05:47 UTC 2017
Because rk3288 and rk3399 use the same mipi dsi controller and phy with
only a few difference in grf register. So we share the mipi driver, and
handle the difference.
Signed-off-by: Eric Gao <eric.gao at rock-chips.com>
Reviewed-by: Simon Glass <sjg at chromium.org>
---
Changes in v3:
-Add Reviewer.
Changes in v2:
-Modify some variate's type for compatibility between arm64 and arm32
machine.
Changes in v1:
-Make a different configuration for rk3288.
drivers/video/rockchip/rk_mipi.c | 68 ++++++++++++++++++++++++++++++++--------
1 file changed, 55 insertions(+), 13 deletions(-)
diff --git a/drivers/video/rockchip/rk_mipi.c b/drivers/video/rockchip/rk_mipi.c
index ab131cd..be30f90 100644
--- a/drivers/video/rockchip/rk_mipi.c
+++ b/drivers/video/rockchip/rk_mipi.c
@@ -20,9 +20,13 @@
#include <linux/kernel.h>
#include <asm/arch/clock.h>
#include <asm/arch/cru_rk3399.h>
-#include <asm/arch/grf_rk3399.h>
#include <asm/arch/rockchip_mipi_dsi.h>
-#include <dt-bindings/clock/rk3288-cru.h>
+
+#ifdef CONFIG_ROCKCHIP_RK3399
+ #include <asm/arch/grf_rk3399.h>
+#elif CONFIG_ROCKCHIP_RK3288
+ #include <asm/arch/grf_rk3288.h>
+#endif
DECLARE_GLOBAL_DATA_PTR;
@@ -41,7 +45,11 @@ DECLARE_GLOBAL_DATA_PTR;
*/
struct rk_mipi_priv {
void __iomem *regs;
+ #ifdef CONFIG_ROCKCHIP_RK3399
struct rk3399_grf_regs *grf;
+ #elif CONFIG_ROCKCHIP_RK3288
+ struct rk3288_grf *grf;
+ #endif
struct udevice *panel;
struct mipi_dsi *dsi;
u32 ref_clk;
@@ -76,13 +84,13 @@ static int rk_mipi_read_timing(struct udevice *dev,
* use define in rk_mipi.h directly for this parameter
* @val: value that will be write to specified bits of register
*/
-static void rk_mipi_dsi_write(u32 regs, u32 reg, u32 val)
+static void rk_mipi_dsi_write(void __iomem *regs, u32 reg, u32 val)
{
u32 dat;
u32 mask;
u32 offset = (reg >> OFFSET_SHIFT) & 0xff;
u32 bits = (reg >> BITS_SHIFT) & 0xff;
- u64 addr = (reg >> ADDR_SHIFT) + regs;
+ void __iomem *addr = (reg >> ADDR_SHIFT) + regs;
/* Mask for specifiled bits,the corresponding bits will be clear */
mask = ~((0xffffffff << offset) & (0xffffffff >> (32 - offset - bits)));
@@ -108,7 +116,7 @@ static int rk_mipi_dsi_enable(struct udevice *dev,
int node, timing_node;
int val;
struct rk_mipi_priv *priv = dev_get_priv(dev);
- u64 regs = (u64)priv->regs;
+ void __iomem *regs = priv->regs;
struct display_plat *disp_uc_plat = dev_get_uclass_platdata(dev);
u32 txbyte_clk = priv->txbyte_clk;
u32 txesc_clk = priv->txesc_clk;
@@ -118,18 +126,33 @@ static int rk_mipi_dsi_enable(struct udevice *dev,
/* Select the video source */
switch (disp_uc_plat->source_id) {
case VOP_B:
+ #ifdef CONFIG_ROCKCHIP_RK3399
rk_clrsetreg(&priv->grf->soc_con20, GRF_DSI0_VOP_SEL_MASK,
- GRF_DSI0_VOP_SEL_B << GRF_DSI0_VOP_SEL_SHIFT);
- break;
+ GRF_DSI0_VOP_SEL_B
+ << GRF_DSI0_VOP_SEL_SHIFT);
+ #elif CONFIG_ROCKCHIP_RK3288
+ rk_clrsetreg(&priv->grf->soc_con6, RK3288_DSI0_LCDC_SEL_MASK,
+ RK3288_DSI0_LCDC_SEL_BIG
+ << RK3288_DSI0_LCDC_SEL_SHIFT);
+ #endif
+ break;
case VOP_L:
+ #ifdef CONFIG_ROCKCHIP_RK3399
rk_clrsetreg(&priv->grf->soc_con20, GRF_DSI0_VOP_SEL_MASK,
- GRF_DSI0_VOP_SEL_L << GRF_DSI0_VOP_SEL_SHIFT);
- break;
+ GRF_DSI0_VOP_SEL_L
+ << GRF_DSI0_VOP_SEL_SHIFT);
+ #elif CONFIG_ROCKCHIP_RK3288
+ rk_clrsetreg(&priv->grf->soc_con6, RK3288_DSI0_LCDC_SEL_MASK,
+ RK3288_DSI0_LCDC_SEL_LIT
+ << RK3288_DSI0_LCDC_SEL_SHIFT);
+ #endif
+ break;
default:
debug("%s: Invalid VOP id\n", __func__);
return -EINVAL;
}
+ #ifdef CONFIG_ROCKCHIP_RK3399
/* Set Controller as TX mode */
val = GRF_DPHY_TX0_RXMODE_DIS << GRF_DPHY_TX0_RXMODE_SHIFT;
rk_clrsetreg(&priv->grf->soc_con22, GRF_DPHY_TX0_RXMODE_MASK, val);
@@ -142,6 +165,24 @@ static int rk_mipi_dsi_enable(struct udevice *dev,
val |= GRF_DPHY_TX0_TURNREQUEST_DIS << GRF_DPHY_TX0_TURNREQUEST_SHIFT;
rk_clrsetreg(&priv->grf->soc_con22, GRF_DPHY_TX0_TURNREQUEST_MASK, val);
+ #elif CONFIG_ROCKCHIP_RK3288
+ /* Set Controller as TX mode */
+ val = RK3288_DPHY_TX0_RXMODE_DIS << RK3288_DPHY_TX0_RXMODE_SHIFT;
+ rk_clrsetreg(&priv->grf->soc_con8, RK3288_DPHY_TX0_RXMODE_MASK, val);
+
+ /* Exit tx stop mode */
+ val |= RK3288_DPHY_TX0_TXSTOPMODE_EN
+ << RK3288_DPHY_TX0_TXSTOPMODE_SHIFT;
+ rk_clrsetreg(&priv->grf->soc_con8,
+ RK3288_DPHY_TX0_TXSTOPMODE_MASK, val);
+
+ /* Disable turnequest */
+ val |= RK3288_DPHY_TX0_TURNREQUEST_EN
+ << RK3288_DPHY_TX0_TURNREQUEST_SHIFT;
+ rk_clrsetreg(&priv->grf->soc_con8,
+ RK3288_DPHY_TX0_TURNREQUEST_MASK, val);
+ #endif
+
/* Set Display timing parameter */
rk_mipi_dsi_write(regs, VID_HSA_TIME, timing->hsync_len.typ);
rk_mipi_dsi_write(regs, VID_HBP_TIME, timing->hback_porch.typ);
@@ -224,7 +265,7 @@ static int rk_mipi_dsi_enable(struct udevice *dev,
}
/* rk mipi dphy write function. It is used to write test data to dphy */
-static void rk_mipi_phy_write(u32 regs, unsigned char test_code,
+static void rk_mipi_phy_write(void __iomem *regs, unsigned char test_code,
unsigned char *test_data, unsigned char size)
{
int i = 0;
@@ -253,7 +294,7 @@ static int rk_mipi_phy_enable(struct udevice *dev)
{
int i;
struct rk_mipi_priv *priv = dev_get_priv(dev);
- u64 regs = (u64)priv->regs;
+ void __iomem *regs = priv->regs;
u64 fbdiv;
u64 prediv = 1;
u32 max_fbdiv = 512;
@@ -437,13 +478,13 @@ static int rk_mipi_ofdata_to_platdata(struct udevice *dev)
priv->grf = syscon_get_first_range(ROCKCHIP_SYSCON_GRF);
if (priv->grf <= 0) {
- debug("%s: Get syscon grf failed (ret=%d)\n",
+ debug("%s: Get syscon grf failed (ret=%p)\n",
__func__, priv->grf);
return -ENXIO;
}
priv->regs = (void *)dev_get_addr(dev);
if (priv->regs <= 0) {
- debug("%s: Get MIPI dsi address failed (ret=%d)\n", __func__,
+ debug("%s: Get MIPI dsi address failed (ret=%p)\n", __func__,
priv->regs);
return -ENXIO;
}
@@ -477,6 +518,7 @@ static const struct dm_display_ops rk_mipi_dsi_ops = {
static const struct udevice_id rk_mipi_dsi_ids[] = {
{ .compatible = "rockchip,rk3399_mipi_dsi" },
+ { .compatible = "rockchip,rk3288_mipi_dsi" },
{ }
};
--
1.9.1
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