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| author | Eugen Hristev <eugen.hristev@microchip.com> | 2021-04-13 12:57:04 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+huawei@kernel.org> | 2021-06-08 12:52:15 +0200 |
| commit | 2ede3975c0a8530663de38b485abbaa18ede0bad (patch) | |
| tree | d77c6ace8f40d59ff6d88ac68aa95ded9a7216a1 /drivers/media/platform/atmel/atmel-sama5d2-isc.c | |
| parent | cd5af39467bdc768387d841186a71bb2d947b29c (diff) | |
| download | linux-2ede3975c0a8530663de38b485abbaa18ede0bad.tar.bz2 | |
media: atmel: atmel-isc: extract CSC submodule config into separate function
The CSC submodule is a part of the atmel-isc pipeline, and stands for
Color Space Conversion. It is used to apply a matrix transformation to
RGB pixels to convert them to the YUV components.
The CSC submodule should be initialized in the product specific driver
as it's product specific. Other products can implement it differently.
[hverkuil: made isc_sama5d2_config_csc 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 | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c index 4fa5e86f4244..9ea1cec7bdae 100644 --- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c +++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c @@ -54,6 +54,19 @@ #define ISC_CLK_MAX_DIV 255 +static void isc_sama5d2_config_csc(struct isc_device *isc) +{ + struct regmap *regmap = isc->regmap; + + /* Convert RGB to YUV */ + regmap_write(regmap, ISC_CSC_YR_YG, 0x42 | (0x81 << 16)); + regmap_write(regmap, ISC_CSC_YB_OY, 0x19 | (0x10 << 16)); + regmap_write(regmap, ISC_CSC_CBR_CBG, 0xFDA | (0xFB6 << 16)); + regmap_write(regmap, ISC_CSC_CBB_OCB, 0x70 | (0x80 << 16)); + regmap_write(regmap, ISC_CSC_CRR_CRG, 0x70 | (0xFA2 << 16)); + regmap_write(regmap, ISC_CSC_CRB_OCR, 0xFEE | (0x80 << 16)); +} + /* Gamma table with gamma 1/2.2 */ static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = { /* 0 --> gamma 1/1.8 */ @@ -198,6 +211,8 @@ static int atmel_isc_probe(struct platform_device *pdev) isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH; isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT; + isc->config_csc = isc_sama5d2_config_csc; + /* sama5d2-isc - 8 bits per beat */ isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8; |