Add support for using the SH-Mobile DRM driver instead of the SH-Mobile LCDC framebuffer driver. Based on old kzm9g conversion prototype code by Laurent Pinchart. Note that the new timings are slightly different, as they are based on the AMPIRE AM-800480L1TMQW-T00H-L datasheet. Signed-off-by: Geert Uytterhoeven <geert+renesas@xxxxxxxxx> Link: https://lore.kernel.org/r/c03d4edbd650836bf6a96504df82338ec6d800ff.1680272980.git.geert+renesas@xxxxxxxxx --- Not intended for upstream merge. The final solution will be DT-based, and will include removal of this file. For proper operation, this depends on patch series "[PATCH 00/39] drm: renesas: shmobile: Atomic conversion + DT support" https://lore.kernel.org/r/cover.1687423204.git.geert+renesas@xxxxxxxxx v2: - Use struct videomode in platform data, - Use media bus formats in platform data. --- drivers/staging/board/armadillo800eva.c | 42 +++++++++++++++++++++++++ 1 file changed, 42 insertions(+) diff --git a/drivers/staging/board/armadillo800eva.c b/drivers/staging/board/armadillo800eva.c index 0225234dd7aa6b1c..d1605ca73316b92c 100644 --- a/drivers/staging/board/armadillo800eva.c +++ b/drivers/staging/board/armadillo800eva.c @@ -12,6 +12,8 @@ #include <linux/dma-mapping.h> #include <linux/fb.h> #include <linux/kernel.h> +#include <linux/media-bus-format.h> +#include <linux/platform_data/shmob_drm.h> #include <linux/platform_device.h> #include <linux/videodev2.h> @@ -19,6 +21,37 @@ #include "board.h" +#ifdef CONFIG_DRM_SHMOBILE +static struct shmob_drm_platform_data lcdc0_info = { + .clk_source = SHMOB_DRM_CLK_BUS, + .iface = { + .bus_fmt = MEDIA_BUS_FMT_RGB888_1X24, + .clk_div = 5, + }, + .panel = { + .width_mm = 111, + .height_mm = 67, + .mode = { + // Timings based on AMPIRE AM-800480L1TMQW-T00H-L + // datasheet + .pixelclock = 33264000, + .hactive = 800, + .hfront_porch = 40, + .hback_porch = 88, + .hsync_len = 128, + .vactive = 480, + .vfront_porch = 35, + .vback_porch = 8, + .vsync_len = 2, + .flags = DISPLAY_FLAGS_HSYNC_LOW | + DISPLAY_FLAGS_VSYNC_LOW | + DISPLAY_FLAGS_DE_HIGH | + DISPLAY_FLAGS_PIXDATA_POSEDGE | + DISPLAY_FLAGS_SYNC_POSEDGE, + }, + }, +}; +#else static struct fb_videomode lcdc0_mode = { .name = "AMPIER/AM-800480", .xres = 800, @@ -48,6 +81,7 @@ static struct sh_mobile_lcdc_info lcdc0_info = { }, }, }; +#endif static struct resource lcdc0_resources[] = { DEFINE_RES_MEM_NAMED(0xfe940000, 0x4000, "LCD0"), @@ -55,7 +89,11 @@ static struct resource lcdc0_resources[] = { }; static struct platform_device lcdc0_device = { +#ifdef CONFIG_DRM_SHMOBILE + .name = "shmob-drm", +#else .name = "sh_mobile_lcdc_fb", +#endif .num_resources = ARRAY_SIZE(lcdc0_resources), .resource = lcdc0_resources, .id = 0, @@ -66,7 +104,11 @@ static struct platform_device lcdc0_device = { }; static const struct board_staging_clk lcdc0_clocks[] __initconst = { +#ifdef CONFIG_DRM_SHMOBILE + { "lcdc0", NULL, "shmob-drm.0" }, +#else { "lcdc0", NULL, "sh_mobile_lcdc_fb.0" }, +#endif }; static const struct board_staging_dev armadillo800eva_devices[] __initconst = { -- 2.34.1
