diff options
Diffstat (limited to 'drivers/gpu')
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_dpi.c | 31 | ||||
| -rw-r--r-- | drivers/gpu/drm/mediatek/mtk_dpi_regs.h | 6 |
2 files changed, 30 insertions, 7 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_dpi.c b/drivers/gpu/drm/mediatek/mtk_dpi.c index ea8d866e67bc..5ee74209a279 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi.c +++ b/drivers/gpu/drm/mediatek/mtk_dpi.c @@ -54,7 +54,8 @@ enum mtk_dpi_out_channel_swap { }; enum mtk_dpi_out_color_format { - MTK_DPI_COLOR_FORMAT_RGB + MTK_DPI_COLOR_FORMAT_RGB, + MTK_DPI_COLOR_FORMAT_YCBCR_422 }; struct mtk_dpi { @@ -409,12 +410,25 @@ static void mtk_dpi_config_disable_edge(struct mtk_dpi *dpi) static void mtk_dpi_config_color_format(struct mtk_dpi *dpi, enum mtk_dpi_out_color_format format) { - /* only support RGB888 */ - mtk_dpi_config_yuv422_enable(dpi, false); - mtk_dpi_config_csc_enable(dpi, false); - if (dpi->conf->swap_input_support) - mtk_dpi_config_swap_input(dpi, false); mtk_dpi_config_channel_swap(dpi, MTK_DPI_OUT_CHANNEL_SWAP_RGB); + + if (format == MTK_DPI_COLOR_FORMAT_YCBCR_422) { + mtk_dpi_config_yuv422_enable(dpi, true); + mtk_dpi_config_csc_enable(dpi, true); + + /* + * If height is smaller than 720, we need to use RGB_TO_BT601 + * to transfer to yuv422. Otherwise, we use RGB_TO_JPEG. + */ + mtk_dpi_mask(dpi, DPI_MATRIX_SET, dpi->mode.hdisplay <= 720 ? + MATRIX_SEL_RGB_TO_BT601 : MATRIX_SEL_RGB_TO_JPEG, + INT_MATRIX_SEL_MASK); + } else { + mtk_dpi_config_yuv422_enable(dpi, false); + mtk_dpi_config_csc_enable(dpi, false); + if (dpi->conf->swap_input_support) + mtk_dpi_config_swap_input(dpi, false); + } } static void mtk_dpi_dual_edge(struct mtk_dpi *dpi) @@ -648,7 +662,10 @@ static int mtk_dpi_bridge_atomic_check(struct drm_bridge *bridge, dpi->bit_num = MTK_DPI_OUT_BIT_NUM_8BITS; dpi->channel_swap = MTK_DPI_OUT_CHANNEL_SWAP_RGB; dpi->yc_map = MTK_DPI_OUT_YC_MAP_RGB; - dpi->color_format = MTK_DPI_COLOR_FORMAT_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; return 0; } diff --git a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h index 3a02fabe1662..9ce300313f3e 100644 --- a/drivers/gpu/drm/mediatek/mtk_dpi_regs.h +++ b/drivers/gpu/drm/mediatek/mtk_dpi_regs.h @@ -217,4 +217,10 @@ #define EDGE_SEL_EN BIT(5) #define H_FRE_2N BIT(25) + +#define DPI_MATRIX_SET 0xB4 +#define INT_MATRIX_SEL_MASK GENMASK(4, 0) +#define MATRIX_SEL_RGB_TO_JPEG 0 +#define MATRIX_SEL_RGB_TO_BT601 2 + #endif /* __MTK_DPI_REGS_H */ |