[PATCH v2 26/43] drm/sun4i: frontend: Add support for packed YUV422 input formats

Paul Kocialkowski
2018-11-23T09:24:58Z

This introduces support for packed YUV formats with 4:2:2 sampling using
the frontend. Definitions are introduced for the data format and pixel
sequence input format register values.

Signed-off-by: Paul Kocialkowski <paul.kocialkowski@bootlin.com>
---
drivers/gpu/drm/sun4i/sun4i_frontend.c | 22 ++++++++++++++++++++++
drivers/gpu/drm/sun4i/sun4i_frontend.h | 5 +++++
2 files changed, 27 insertions(+)

diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.c b/drivers/gpu/drm/sun4i/sun4i_frontend.c
index 4700133b96e0..f443e8e1d8ec 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.c
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.c
@@ -130,6 +130,8 @@ static int sun4i_frontend_drm_format_to_input_fmt(uint32_t fmt, u32 *val)
{
if (!drm_format_is_yuv(fmt))
*val = SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_RGB;
+ else if (drm_format_is_yuv_sampling_422(fmt))
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_YUV422;
else
return -EINVAL;

@@ -153,10 +155,26 @@ static int sun4i_frontend_drm_format_to_input_sequence(uint32_t fmt, u32 *val)
*val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_BGRX;
return 0;

+ case DRM_FORMAT_UYVY:
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_UYVY;
+ return 0;
+
+ case DRM_FORMAT_VYUY:
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_VYUY;
+ return 0;
+
case DRM_FORMAT_XRGB8888:
*val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_XRGB;
return 0;

+ case DRM_FORMAT_YUYV:
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_YUYV;
+ return 0;
+
+ case DRM_FORMAT_YVYU:
+ *val = SUN4I_FRONTEND_INPUT_FMT_DATA_PS_YVYU;
+ return 0;
+
default:
return -EINVAL;
}
@@ -180,7 +198,11 @@ static int sun4i_frontend_drm_format_to_output_fmt(uint32_t fmt, u32 *val)

static const uint32_t sun4i_frontend_formats[] = {
DRM_FORMAT_BGRX8888,
+ DRM_FORMAT_UYVY,
+ DRM_FORMAT_VYUY,
DRM_FORMAT_XRGB8888,
+ DRM_FORMAT_YUYV,
+ DRM_FORMAT_YVYU,
};

bool sun4i_frontend_format_is_supported(uint32_t fmt)
diff --git a/drivers/gpu/drm/sun4i/sun4i_frontend.h b/drivers/gpu/drm/sun4i/sun4i_frontend.h
index fb097c34e160..399755939a28 100644
--- a/drivers/gpu/drm/sun4i/sun4i_frontend.h
+++ b/drivers/gpu/drm/sun4i/sun4i_frontend.h
@@ -27,7 +27,12 @@

#define SUN4I_FRONTEND_INPUT_FMT_REG 0x04c
#define SUN4I_FRONTEND_INPUT_FMT_DATA_MOD_PACKED (1 << 8)
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_YUV422 (1 << 4)
#define SUN4I_FRONTEND_INPUT_FMT_DATA_FMT_RGB (5 << 4)
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_UYVY 0
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_YUYV 1
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_VYUY 2
+#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_YVYU 3
#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_BGRX 0
#define SUN4I_FRONTEND_INPUT_FMT_DATA_PS_XRGB 1

--
2.19.1