diff options
Diffstat (limited to 'include/video/tegra_dc_ext.h')
| -rw-r--r-- | include/video/tegra_dc_ext.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/include/video/tegra_dc_ext.h b/include/video/tegra_dc_ext.h index 6c1a4e3e59c6..380b026701d7 100644 --- a/include/video/tegra_dc_ext.h +++ b/include/video/tegra_dc_ext.h @@ -174,6 +174,8 @@ struct tegra_dc_ext_csc { * To convert 8-bit per channel RGB values to 16-bit, duplicate the 8 bits * in low and high byte, e.g. r=r|(r<<8) * + * To just update flags, set len to 0. + * * Current Tegra DC hardware supports 8-bit per channel to 8-bit per channel, * and each hardware window (overlay) uses its own lookup table. * @@ -188,7 +190,9 @@ struct tegra_dc_ext_lut { __u16 *b; /* array of 16-bit blue values, 0 to reset */ }; -/* tegra_dc_ext_lut.flags - override fb device palette. Default is multiply. */ +/* tegra_dc_ext_lut.flags - override global fb device lookup table. + * Default behaviour is double-lookup. + */ #define TEGRA_DC_EXT_LUT_FLAGS_FBOVERRIDE 0x01 #define TEGRA_DC_EXT_FLAGS_ENABLED 1 |