diff options
| author | Kevin Huang <kevinh@nvidia.com> | 2013-02-19 15:25:58 -0800 |
|---|---|---|
| committer | Dan Willemsen <dwillemsen@nvidia.com> | 2013-09-14 13:01:09 -0700 |
| commit | e239c2db8413a4a7299a3f4d4e8b24bd0b34ce3c (patch) | |
| tree | d16b3c3055b1fa264d533c6dbd26d0cbef1e6d3a /include/video | |
| parent | 4a7584d29c046a252e72744466c5b9ec27deb890 (diff) | |
video: tegra: dc: support cmu read in ioctl.
Added two interfaces for cmu read. In kernel, the initial cmu values
derive from either default cmu table (identical mapping) or the board
file. TEGRA_DC_EXT_GET_CMU returns the cached cmu values which are the
same as hw values. TEGRA_DC_EXT_GET_CUSTOM_CMU returns the cmu custom
values if they are set in board file; otherwise return error.
Notice for TEGRA_DC_EXT_GET_CMU, in the case cmu is off by default, we
don't write cmu registers. So it returns zeros unless it is enabled.
Bug 1221681
Change-Id: Ie976700b9d1f073e84d83fbdb2f25ecb5d7149db
Signed-off-by: Kevin Huang <kevinh@nvidia.com>
Reviewed-on: http://git-master/r/202202
Reviewed-by: Harshada Kale <hkale@nvidia.com>
Tested-by: Harshada Kale <hkale@nvidia.com>
Diffstat (limited to 'include/video')
| -rw-r--r-- | include/video/tegra_dc_ext.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/video/tegra_dc_ext.h b/include/video/tegra_dc_ext.h index e42537d378ca..05ad5d97ab3b 100644 --- a/include/video/tegra_dc_ext.h +++ b/include/video/tegra_dc_ext.h @@ -288,6 +288,11 @@ struct tegra_dc_ext_feature { #define TEGRA_DC_EXT_FLIP2 \ _IOWR('D', 0x0E, struct tegra_dc_ext_flip_2) +#define TEGRA_DC_EXT_GET_CMU \ + _IOR('D', 0x0F, struct tegra_dc_ext_cmu) + +#define TEGRA_DC_EXT_GET_CUSTOM_CMU \ + _IOR('D', 0x10, struct tegra_dc_ext_cmu) enum tegra_dc_ext_control_output_type { TEGRA_DC_EXT_DSI, |