From: AngeloGioacchino Del Regno Date: Wed, 9 Apr 2025 13:13:03 +0000 (+0200) Subject: drm/mediatek: mtk_dpi: Add local helpers for bus format parameters X-Git-Tag: v6.16-rc1~144^2~8^2~7 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=c64cad81e635035c127301d881ac7ab9f5abc8b4;p=thirdparty%2Flinux.git drm/mediatek: mtk_dpi: Add local helpers for bus format parameters In preparation for adding support for additional color formats, add local helpers to map media bus format parameters to this driver's bit_num, channel_swap and color_format. This commit brings no functional changes. Signed-off-by: AngeloGioacchino Del Regno Reviewed-by: CK Hu Link: https://patchwork.kernel.org/project/dri-devel/patch/20250409131306.108635-3-angelogioacchino.delregno@collabora.com/ Signed-off-by: Chun-Kuang Hu --- diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index d735398e97f81..5a66dfe3ad40c 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -738,6 +738,43 @@ static u32 *mtk_dpi_bridge_atomic_get_input_bus_fmts(struct drm_bridge *bridge, return input_fmts; } +static unsigned int mtk_dpi_bus_fmt_bit_num(unsigned int out_bus_format) +{ + switch (out_bus_format) { + default: + case MEDIA_BUS_FMT_RGB888_1X24: + case MEDIA_BUS_FMT_RGB888_2X12_LE: + case MEDIA_BUS_FMT_RGB888_2X12_BE: + case MEDIA_BUS_FMT_YUYV8_1X16: + return MTK_DPI_OUT_BIT_NUM_8BITS; + } +} + +static unsigned int mtk_dpi_bus_fmt_channel_swap(unsigned int out_bus_format) +{ + switch (out_bus_format) { + default: + case MEDIA_BUS_FMT_RGB888_1X24: + case MEDIA_BUS_FMT_RGB888_2X12_LE: + case MEDIA_BUS_FMT_RGB888_2X12_BE: + case MEDIA_BUS_FMT_YUYV8_1X16: + return MTK_DPI_OUT_CHANNEL_SWAP_RGB; + } +} + +static unsigned int mtk_dpi_bus_fmt_color_format(unsigned int out_bus_format) +{ + switch (out_bus_format) { + default: + case MEDIA_BUS_FMT_RGB888_1X24: + case MEDIA_BUS_FMT_RGB888_2X12_LE: + case MEDIA_BUS_FMT_RGB888_2X12_BE: + return MTK_DPI_COLOR_FORMAT_RGB; + case MEDIA_BUS_FMT_YUYV8_1X16: + return MTK_DPI_COLOR_FORMAT_YCBCR_422; + } +} + static int mtk_dpi_bridge_atomic_check(struct drm_bridge *bridge, struct drm_bridge_state *bridge_state, struct drm_crtc_state *crtc_state, @@ -757,13 +794,10 @@ static int mtk_dpi_bridge_atomic_check(struct drm_bridge *bridge, bridge_state->output_bus_cfg.format); dpi->output_fmt = out_bus_format; - dpi->bit_num = MTK_DPI_OUT_BIT_NUM_8BITS; - dpi->channel_swap = MTK_DPI_OUT_CHANNEL_SWAP_RGB; + dpi->bit_num = mtk_dpi_bus_fmt_bit_num(out_bus_format); + dpi->channel_swap = mtk_dpi_bus_fmt_channel_swap(out_bus_format); dpi->yc_map = MTK_DPI_OUT_YC_MAP_RGB; - if (out_bus_format == MEDIA_BUS_FMT_YUYV8_1X16) - dpi->color_format = MTK_DPI_COLOR_FORMAT_YCBCR_422; - else - dpi->color_format = MTK_DPI_COLOR_FORMAT_RGB; + dpi->color_format = mtk_dpi_bus_fmt_color_format(out_bus_format); return 0; }