From de461c526ee7a489710d2c431acdb4d7fa677577 Mon Sep 17 00:00:00 2001 From: Piotr Wilczek Date: Fri, 7 Mar 2014 14:59:39 +0100 Subject: video:mipidsim:fdt: Add DT support for mipi dsim driver This patch enables parsing mipi data from device tree. Non device tree case is still supported. Signed-off-by: Piotr Wilczek Signed-off-by: Kyungmin Park Signed-off-by: Minkyu Kang --- drivers/video/exynos_mipi_dsi.c | 96 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 96 insertions(+) (limited to 'drivers') 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 #include +#include +#include #include #include #include @@ -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 -- cgit v1.1