Piotr,
You need to add the documentation for the bindings you create. Please add a exynos_mipi_dsi.txt file under the directory: doc/device-tree-bindings/video/
Regards, Ajay Kumar
On Tue, Mar 4, 2014 at 7:25 PM, Piotr Wilczek p.wilczek@samsung.com wrote:
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 v4:
- use "-" hypen for DT bindings
Changes for v3:
- none
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..7dd4652 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 mipidsi\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 19bab79..bd84c83 100644 --- a/include/fdtdec.h +++ b/include/fdtdec.h @@ -79,6 +79,7 @@ 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 1fecab3..c97fad3 100644 --- a/lib/fdtdec.c +++ b/lib/fdtdec.c @@ -52,6 +52,7 @@ 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"),-- 1.8.3.2
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