diff options
| author | Wayne Zou <b36644@freescale.com> | 2012-04-13 14:16:21 +0800 |
|---|---|---|
| committer | Jason Liu <r64343@freescale.com> | 2012-07-20 13:36:11 +0800 |
| commit | 80ecfe135e4687f4369d6e310f6a265f29d45b87 (patch) | |
| tree | bfbd569082eeb1146de336996641f7254b43d605 | |
| parent | 502d6de4202d458fd0a73c2de304618ff0ca8d87 (diff) | |
ENGR00179631 MX6 SabreSD: Add MIPI DSI Display support
Add MIPI DSI Display support on mx6 SabreSD board.
MIPI DSI needs pll3_pfd_540M clock source for 540MHz.
if using ldb, the pll3_pfd_540M clock will be changed to 454Mhz.
So add command line option disable_ldb when using MIPI DSI display.
Signed-off-by: Wayne Zou <b36644@freescale.com>
| -rw-r--r-- | arch/arm/mach-mx6/board-mx6q_sabresd.c | 38 | ||||
| -rw-r--r-- | arch/arm/mach-mx6/board-mx6q_sabresd.h | 5 |
2 files changed, 42 insertions, 1 deletions
diff --git a/arch/arm/mach-mx6/board-mx6q_sabresd.c b/arch/arm/mach-mx6/board-mx6q_sabresd.c index fba11a5789f1..82fb04e391a9 100644 --- a/arch/arm/mach-mx6/board-mx6q_sabresd.c +++ b/arch/arm/mach-mx6/board-mx6q_sabresd.c @@ -67,6 +67,7 @@ #include <mach/ipu-v3.h> #include <mach/mxc_hdmi.h> #include <mach/mxc_asrc.h> +#include <mach/mipi_dsi.h> #include <asm/irq.h> #include <asm/setup.h> @@ -194,6 +195,7 @@ static struct clk *sata_clk; static int mma8451_position = 3; static int mag3110_position; +static int disable_ldb; extern char *gp_reg_id; extern int epdc_enabled; @@ -1158,6 +1160,28 @@ static struct imx_asrc_platform_data imx_asrc_data = { .clk_map_ver = 2, }; +static void mx6_reset_mipi_dsi(void) +{ + gpio_set_value(SABRESD_DISP_PWR_EN, 1); + gpio_set_value(SABRESD_DISP_RST_B, 1); + udelay(10); + gpio_set_value(SABRESD_DISP_RST_B, 0); + udelay(50); + gpio_set_value(SABRESD_DISP_RST_B, 1); + + /* + * it needs to delay 120ms minimum for reset complete + */ + msleep(120); +} + +static struct mipi_dsi_platform_data mipi_dsi_pdata = { + .ipu_id = 0, + .disp_id = 1, + .lcd_panel = "TRULY-WVGA", + .reset = mx6_reset_mipi_dsi, +}; + static struct ipuv3_fb_platform_data sabresd_fb_data[] = { { /*fb0*/ .disp_dev = "ldb", @@ -1439,6 +1463,14 @@ static const struct imx_pcie_platform_data mx6_sabresd_pcie_data __initconst = { .pcie_dis = SABRESD_PCIE_DIS_B, }; +static int __init early_disable_ldb(char *p) +{ + /*mipi dsi need pll3_pfd_540M as 540MHz, ldb will change to 454Mhz*/ + disable_ldb = 1; + return 0; +} + +early_param("disable_ldb", early_disable_ldb); /*! * Board specific initialization. */ @@ -1482,6 +1514,8 @@ static void __init mx6_sabresd_board_init(void) ldb_data.sec_ipu_id = 0; ldb_data.sec_disp_id = 1; hdmi_core_data.disp_id = 1; + mipi_dsi_pdata.ipu_id = 0; + mipi_dsi_pdata.disp_id = 1; } imx6q_add_mxc_hdmi_core(&hdmi_core_data); @@ -1495,8 +1529,10 @@ static void __init mx6_sabresd_board_init(void) imx6q_add_ipuv3fb(i, &sabresd_fb_data[i]); imx6q_add_vdoa(); + imx6q_add_mipi_dsi(&mipi_dsi_pdata); imx6q_add_lcdif(&lcdif_data); - imx6q_add_ldb(&ldb_data); + if (!disable_ldb) + imx6q_add_ldb(&ldb_data); imx6q_add_v4l2_output(0); imx6q_add_v4l2_capture(0); imx6q_add_mipi_csi2(&mipi_csi2_pdata); diff --git a/arch/arm/mach-mx6/board-mx6q_sabresd.h b/arch/arm/mach-mx6/board-mx6q_sabresd.h index d84a606f9206..8ccb3423424f 100644 --- a/arch/arm/mach-mx6/board-mx6q_sabresd.h +++ b/arch/arm/mach-mx6/board-mx6q_sabresd.h @@ -253,6 +253,11 @@ static iomux_v3_cfg_t mx6q_sabresd_pads[] = { MX6Q_PAD_GPIO_17__GPIO_7_12, /* PCIE_RST */ MX6Q_PAD_KEY_COL4__GPIO_4_14, /* PCIE_DIS */ + + /* DISP_RST_B */ + MX6Q_PAD_NANDF_CS0__GPIO_6_11, + /* DISP_PWR_EN */ + MX6Q_PAD_NANDF_CS1__GPIO_6_14, }; static iomux_v3_cfg_t mx6q_sabresd_csi0_sensor_pads[] = { |