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author | Eugen Hristev <eugen.hristev@microchip.com> | 2021-04-13 12:57:17 +0200 |
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committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-06-08 14:15:28 +0200 |
commit | 2873f85bd318bfc3f453fa78facb2b77632b36d8 (patch) | |
tree | faf7eaf08ff1304b9daeb0f5ac691dd3432f6cfd /drivers/media/platform/atmel/atmel-sama5d2-isc.c | |
parent | 5507b10109253a19765880fffff6e9fff3810868 (diff) | |
download | linux-2873f85bd318bfc3f453fa78facb2b77632b36d8.tar.bz2 |
media: atmel: atmel-isc: add CC initialization function
The CC submodule is a part of the atmel-isc pipeline, and stands for
Color Correction. It is used to apply gains and offsets to the
chroma (U, V) components of the YUV elements.
Implement the CC submodule initialization, as a product
specific function, which currently configures the neutral point in color
correction.
[hverkuil: made isc_sama5d2_config_cc static]
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Diffstat (limited to 'drivers/media/platform/atmel/atmel-sama5d2-isc.c')
-rw-r--r-- | drivers/media/platform/atmel/atmel-sama5d2-isc.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c index 72cb91b4b8ba..3d2e6e68015a 100644 --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c @@ -83,6 +83,19 @@ static void isc_sama5d2_config_cbc(struct isc_device *isc) isc->ctrls.contrast); } +static void isc_sama5d2_config_cc(struct isc_device *isc) +{ + struct regmap *regmap = isc->regmap; + + /* Configure each register at the neutral fixed point 1.0 or 0.0 */ + regmap_write(regmap, ISC_CC_RR_RG, (1 << 8)); + regmap_write(regmap, ISC_CC_RB_OR, 0); + regmap_write(regmap, ISC_CC_GR_GG, (1 << 8) << 16); + regmap_write(regmap, ISC_CC_GB_OG, 0); + regmap_write(regmap, ISC_CC_BR_BG, 0); + regmap_write(regmap, ISC_CC_BB_OB, (1 << 8)); +} + /* Gamma table with gamma 1/2.2 */ static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = { /* 0 --> gamma 1/1.8 */ @@ -230,6 +243,7 @@ static int atmel_isc_probe(struct platform_device *pdev) isc->config_csc = isc_sama5d2_config_csc; isc->config_cbc = isc_sama5d2_config_cbc; + isc->config_cc = isc_sama5d2_config_cc; isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET; isc->offsets.cbc = ISC_SAMA5D2_CBC_OFFSET; |