[U-Boot] [PATCH 5/6] smdk5420: Implement callbacks needed by exynos_fb driver

[Ajay kumar]

ping.


On Mon, Sep 30, 2013 at 4:50 PM, Ajay Kumar <ajaykumar.rs at samsung.com>wrote:

> Add callbacks to set up DP-HPD, backlight and LCD power
> on SMDK5420.
>
> Signed-off-by: Ajay Kumar <ajaykumar.rs at samsung.com>
> ---
>  board/samsung/smdk5420/smdk5420.c | 118
> +++++++++++---------------------------
>  1 file changed, 34 insertions(+), 84 deletions(-)
>
> diff --git a/board/samsung/smdk5420/smdk5420.c
> b/board/samsung/smdk5420/smdk5420.c
> index cf76455..3f29ce0 100644
> --- a/board/samsung/smdk5420/smdk5420.c
> +++ b/board/samsung/smdk5420/smdk5420.c
> @@ -137,98 +137,48 @@ int board_mmc_init(bd_t *bis)
>  #endif
>
>  #ifdef CONFIG_LCD
> -void cfg_lcd_gpio(void)
> +void exynos_cfg_lcd_gpio(void)
>  {
> -       struct exynos5_gpio_part1 *gpio1 =
> -               (struct exynos5_gpio_part1 *)samsung_get_base_gpio_part1();
> +       struct exynos5420_gpio_part2 *gpio2 =
> +               (struct exynos5420_gpio_part2
> *)samsung_get_base_gpio_part2();
>
> -       /* For Backlight */
> +       /* Set Hotplug detect for DP */
> +       s5p_gpio_cfg_pin(&gpio2->x0, 7, GPIO_FUNC(0x3));
> +}
> +
> +void exynos_backlight_on(unsigned int onoff)
> +{
> +       struct exynos5420_gpio_part1 *gpio1 =
> +               (struct exynos5420_gpio_part1
> *)samsung_get_base_gpio_part1();
> +
> +       struct exynos5420_gpio_part2 *gpio2 =
> +               (struct exynos5420_gpio_part2
> *)samsung_get_base_gpio_part2();
> +
> +       /* For PWM */
>         s5p_gpio_cfg_pin(&gpio1->b2, 0, GPIO_OUTPUT);
>         s5p_gpio_set_value(&gpio1->b2, 0, 1);
>
> -       /* LCD power on */
> -       s5p_gpio_cfg_pin(&gpio1->x1, 5, GPIO_OUTPUT);
> -       s5p_gpio_set_value(&gpio1->x1, 5, 1);
> -
> -       /* Set Hotplug detect for DP */
> -       s5p_gpio_cfg_pin(&gpio1->x0, 7, GPIO_FUNC(0x3));
> +       /* BL_EN */
> +       s5p_gpio_cfg_pin(&gpio2->x1, 5, GPIO_OUTPUT);
> +       s5p_gpio_set_value(&gpio2->x1, 5, 1);
>  }
>
> -vidinfo_t panel_info = {
> -       .vl_freq        = 60,
> -       .vl_col         = 2560,
> -       .vl_row         = 1600,
> -       .vl_width       = 2560,
> -       .vl_height      = 1600,
> -       .vl_clkp        = CONFIG_SYS_LOW,
> -       .vl_hsp         = CONFIG_SYS_LOW,
> -       .vl_vsp         = CONFIG_SYS_LOW,
> -       .vl_dp          = CONFIG_SYS_LOW,
> -       .vl_bpix        = 4,    /* LCD_BPP = 2^4, for output conosle on
> LCD */
> -
> -       /* wDP panel timing infomation */
> -       .vl_hspw        = 32,
> -       .vl_hbpd        = 80,
> -       .vl_hfpd        = 48,
> -
> -       .vl_vspw        = 6,
> -       .vl_vbpd        = 37,
> -       .vl_vfpd        = 3,
> -       .vl_cmd_allow_len = 0xf,
> -
> -       .win_id         = 3,
> -       .cfg_gpio       = cfg_lcd_gpio,
> -       .backlight_on   = NULL,
> -       .lcd_power_on   = NULL,
> -       .reset_lcd      = NULL,
> -       .dual_lcd_enabled = 0,
> -
> -       .init_delay     = 0,
> -       .power_on_delay = 0,
> -       .reset_delay    = 0,
> -       .interface_mode = FIMD_RGB_INTERFACE,
> -       .dp_enabled     = 1,
> -};
> -
> -static struct edp_device_info edp_info = {
> -       .disp_info = {
> -               .h_res = 2560,
> -               .h_sync_width = 32,
> -               .h_back_porch = 80,
> -               .h_front_porch = 48,
> -               .v_res = 1600,
> -               .v_sync_width  = 6,
> -               .v_back_porch = 37,
> -               .v_front_porch = 3,
> -               .v_sync_rate = 60,
> -       },
> -       .lt_info = {
> -               .lt_status = DP_LT_NONE,
> -       },
> -       .video_info = {
> -               .master_mode = 0,
> -               .bist_mode = DP_DISABLE,
> -               .bist_pattern = NO_PATTERN,
> -               .h_sync_polarity = 0,
> -               .v_sync_polarity = 0,
> -               .interlaced = 0,
> -               .color_space = COLOR_RGB,
> -               .dynamic_range = VESA,
> -               .ycbcr_coeff = COLOR_YCBCR601,
> -               .color_depth = COLOR_8,
> -       },
> -};
> -
> -static struct exynos_dp_platform_data dp_platform_data = {
> -       .phy_enable     = set_dp_phy_ctrl,
> -       .edp_dev_info   = &edp_info,
> -};
> -
> -void init_panel_info(vidinfo_t *vid)
> +void exynos_lcd_power_on(void)
>  {
> -       vid->rgb_mode   = MODE_RGB_P,
> -
> -       exynos_set_dp_platform_data(&dp_platform_data);
> +       int pmic_bus, pmic_i2caddr, ldo38_reg, old_bus;
> +       u8 value;
> +
> +       /* enable VDD_28IO_DP: LDO38 should be at 2.8V */
> +       pmic_bus = 4;
> +       pmic_i2caddr = 0x66;
> +       ldo38_reg = 0x62;
> +       value = 0x78;
> +
> +       old_bus = i2c_get_bus_num();
> +       i2c_set_bus_num(pmic_bus);
> +       if (i2c_write(pmic_i2caddr, ldo38_reg, 1, &value, 1))
> +               printf("i2c write fail. Failed to enable VDD_28IO_DP\n");
> +       i2c_set_bus_num(old_bus);
>  }
>  #endif
>
> --
> 1.7.12.4
>
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