diff options
Diffstat (limited to 'drivers/gpu/drm/sun4i/sun4i_backend.c')
| -rw-r--r-- | drivers/gpu/drm/sun4i/sun4i_backend.c | 25 |
1 files changed, 2 insertions, 23 deletions
diff --git a/drivers/gpu/drm/sun4i/sun4i_backend.c b/drivers/gpu/drm/sun4i/sun4i_backend.c index 9e9255ee59cd..892197f52557 100644 --- a/drivers/gpu/drm/sun4i/sun4i_backend.c +++ b/drivers/gpu/drm/sun4i/sun4i_backend.c @@ -45,28 +45,6 @@ static const u32 sunxi_rgb2yuv_coef[12] = { 0x000001c1, 0x00003e88, 0x00003fb8, 0x00000808 }; -/* - * These coefficients are taken from the A33 BSP from Allwinner. - * - * The first three values of each row are coded as 13-bit signed fixed-point - * numbers, with 10 bits for the fractional part. The fourth value is a - * constant coded as a 14-bit signed fixed-point number with 4 bits for the - * fractional part. - * - * The values in table order give the following colorspace translation: - * G = 1.164 * Y - 0.391 * U - 0.813 * V + 135 - * R = 1.164 * Y + 1.596 * V - 222 - * B = 1.164 * Y + 2.018 * U + 276 - * - * This seems to be a conversion from Y[16:235] UV[16:240] to RGB[0:255], - * following the BT601 spec. - */ -static const u32 sunxi_bt601_yuv2rgb_coef[12] = { - 0x000004a7, 0x00001e6f, 0x00001cbf, 0x00000877, - 0x000004a7, 0x00000000, 0x00000662, 0x00003211, - 0x000004a7, 0x00000812, 0x00000000, 0x00002eb1, -}; - static void sun4i_backend_apply_color_correction(struct sunxi_engine *engine) { int i; @@ -245,7 +223,8 @@ static int sun4i_backend_update_yuv_format(struct sun4i_backend *backend, SUN4I_BACKEND_ATTCTL_REG0_LAY_YUVEN); /* TODO: Add support for the multi-planar YUV formats */ - if (format->num_planes == 1) + if (drm_format_info_is_yuv_packed(format) && + drm_format_info_is_yuv_sampling_422(format)) val |= SUN4I_BACKEND_IYUVCTL_FBFMT_PACKED_YUV422; else DRM_DEBUG_DRIVER("Unsupported YUV format (0x%x)\n", fmt); |