This patch enables parsing mipi data from device tree. Non device tree case is still supported.
Signed-off-by: Piotr Wilczek p.wilczek@samsung.com Signed-off-by: Kyungmin Park kyungmin.park@samsung.com Cc: Minkyu Kang mk7.kang@samsung.com --- Changes for v2: - removed panel specific init function 's6e8ax0_init' to the board file;
arch/arm/include/asm/arch-exynos/mipi_dsim.h | 5 ++ drivers/video/exynos_mipi_dsi.c | 96 ++++++++++++++++++++++++++ include/fdtdec.h | 1 + lib/fdtdec.c | 1 + 4 files changed, 103 insertions(+)
diff --git a/arch/arm/include/asm/arch-exynos/mipi_dsim.h b/arch/arm/include/asm/arch-exynos/mipi_dsim.h index 40aca71..50e5c25 100644 --- a/arch/arm/include/asm/arch-exynos/mipi_dsim.h +++ b/arch/arm/include/asm/arch-exynos/mipi_dsim.h @@ -12,6 +12,7 @@
#include <linux/list.h> #include <linux/fb.h> +#include <lcd.h>
#define PANEL_NAME_SIZE (32)
@@ -368,8 +369,12 @@ int exynos_mipi_dsi_register_lcd_device(struct mipi_dsim_lcd_device *lcd_dev);
void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd); +void exynos_init_dsim_platform_data(vidinfo_t *vid);
/* panel driver init based on mipi dsi interface */ void s6e8ax0_init(void);
+#ifdef CONFIG_OF_CONTROL +extern int mipi_power(void); +#endif #endif /* _DSIM_H */ diff --git a/drivers/video/exynos_mipi_dsi.c b/drivers/video/exynos_mipi_dsi.c index 8bb8fea..6c10f11 100644 --- a/drivers/video/exynos_mipi_dsi.c +++ b/drivers/video/exynos_mipi_dsi.c @@ -9,6 +9,8 @@
#include <common.h> #include <malloc.h> +#include <fdtdec.h> +#include <libfdt.h> #include <linux/err.h> #include <asm/arch/dsim.h> #include <asm/arch/mipi_dsim.h> @@ -22,7 +24,14 @@ #define master_to_driver(a) (a->dsim_lcd_drv) #define master_to_device(a) (a->dsim_lcd_dev)
+DECLARE_GLOBAL_DATA_PTR; + static struct exynos_platform_mipi_dsim *dsim_pd; +#ifdef CONFIG_OF_CONTROL +static struct mipi_dsim_config dsim_config_dt; +static struct exynos_platform_mipi_dsim dsim_platform_data_dt; +static struct mipi_dsim_lcd_device mipi_lcd_device_dt; +#endif
struct mipi_dsim_ddi { int bus_id; @@ -238,3 +247,90 @@ void exynos_set_dsim_platform_data(struct exynos_platform_mipi_dsim *pd)
dsim_pd = pd; } + +#ifdef CONFIG_OF_CONTROL +int exynos_dsim_config_parse_dt(const void *blob) +{ + int node; + + node = fdtdec_next_compatible(blob, 0, COMPAT_SAMSUNG_EXYNOS_MIPI_DSI); + if (node <= 0) { + printf("exynos_mipi_dsi: Can't get device node for mipi dsi\n"); + return -ENODEV; + } + + dsim_config_dt.e_interface = fdtdec_get_int(blob, node, + "samsung,dsim-config-e_interface", 0); + + dsim_config_dt.e_virtual_ch = fdtdec_get_int(blob, node, + "samsung,dsim-config-e_virtual_ch", 0); + + dsim_config_dt.e_pixel_format = fdtdec_get_int(blob, node, + "samsung,dsim-config-e_pixel_format", 0); + + dsim_config_dt.e_burst_mode = fdtdec_get_int(blob, node, + "samsung,dsim-config-e_burst_mode", 0); + + dsim_config_dt.e_no_data_lane = fdtdec_get_int(blob, node, + "samsung,dsim-config-e_no_data_lane", 0); + + dsim_config_dt.e_byte_clk = fdtdec_get_int(blob, node, + "samsung,dsim-config-e_byte_clk", 0); + + dsim_config_dt.hfp = fdtdec_get_int(blob, node, + "samsung,dsim-config-hfp", 0); + + dsim_config_dt.p = fdtdec_get_int(blob, node, + "samsung,dsim-config-p", 0); + dsim_config_dt.m = fdtdec_get_int(blob, node, + "samsung,dsim-config-m", 0); + dsim_config_dt.s = fdtdec_get_int(blob, node, + "samsung,dsim-config-s", 0); + + dsim_config_dt.pll_stable_time = fdtdec_get_int(blob, node, + "samsung,dsim-config-pll_stable_time", 0); + + dsim_config_dt.esc_clk = fdtdec_get_int(blob, node, + "samsung,dsim-config-esc_clk", 0); + + dsim_config_dt.stop_holding_cnt = fdtdec_get_int(blob, node, + "samsung,dsim-config-stop_holding_cnt", 0); + + dsim_config_dt.bta_timeout = fdtdec_get_int(blob, node, + "samsung,dsim-config-bta_timeout", 0); + + dsim_config_dt.rx_timeout = fdtdec_get_int(blob, node, + "samsung,dsim-config-rx_timeout", 0); + + mipi_lcd_device_dt.name = fdtdec_get_config_string(blob, + "samsung,dsim-device-name"); + + mipi_lcd_device_dt.id = fdtdec_get_int(blob, node, + "samsung,dsim-device-id", 0); + + mipi_lcd_device_dt.bus_id = fdtdec_get_int(blob, node, + "samsung,dsim-device-bus_id", 0); + + mipi_lcd_device_dt.reverse_panel = fdtdec_get_int(blob, node, + "samsung,dsim-device-reverse_panel", 0); + + return 0; +} + +void exynos_init_dsim_platform_data(vidinfo_t *vid) +{ + if (exynos_dsim_config_parse_dt(gd->fdt_blob)) + debug("Can't get proper dsim config.\n"); + + strcpy(dsim_platform_data_dt.lcd_panel_name, mipi_lcd_device_dt.name); + dsim_platform_data_dt.dsim_config = &dsim_config_dt; + dsim_platform_data_dt.mipi_power = mipi_power; + dsim_platform_data_dt.phy_enable = set_mipi_phy_ctrl; + dsim_platform_data_dt.lcd_panel_info = (void *)vid; + + mipi_lcd_device_dt.platform_data = (void *)&dsim_platform_data_dt; + exynos_mipi_dsi_register_lcd_device(&mipi_lcd_device_dt); + + dsim_pd = &dsim_platform_data_dt; +} +#endif diff --git a/include/fdtdec.h b/include/fdtdec.h index 433d6a7..f12b4aa 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -78,6 +78,7 @@ enum fdt_compat_id { COMPAT_SAMSUNG_EXYNOS5_USB3_PHY,/* Exynos phy controller for usb3.0 */ COMPAT_SAMSUNG_EXYNOS_TMU, /* Exynos TMU */ COMPAT_SAMSUNG_EXYNOS_FIMD, /* Exynos Display controller */ + COMPAT_SAMSUNG_EXYNOS_MIPI_DSI, /* Exynos mipi dsi */ COMPAT_SAMSUNG_EXYNOS5_DP, /* Exynos Display port controller */ COMPAT_SAMSUNG_EXYNOS5_DWMMC, /* Exynos5 DWMMC controller */ COMPAT_SAMSUNG_EXYNOS_SERIAL, /* Exynos UART */ diff --git a/lib/fdtdec.c b/lib/fdtdec.c index 207314f..46e67ff 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -51,6 +51,7 @@ static const char * const compat_names[COMPAT_COUNT] = { COMPAT(SAMSUNG_EXYNOS5_USB3_PHY, "samsung,exynos5250-usb3-phy"), COMPAT(SAMSUNG_EXYNOS_TMU, "samsung,exynos-tmu"), COMPAT(SAMSUNG_EXYNOS_FIMD, "samsung,exynos-fimd"), + COMPAT(SAMSUNG_EXYNOS_MIPI_DSI, "samsung,exynos-mipi-dsi"), COMPAT(SAMSUNG_EXYNOS5_DP, "samsung,exynos5-dp"), COMPAT(SAMSUNG_EXYNOS5_DWMMC, "samsung,exynos5250-dwmmc"), COMPAT(SAMSUNG_EXYNOS_SERIAL, "samsung,exynos4210-uart"),