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- From 0db91d2a803221c313c9f2cd1d71050d7c5a7b5b Mon Sep 17 00:00:00 2001
- From: Eugen Hristev <[email protected]>
- Date: Tue, 13 Apr 2021 12:57:17 +0200
- Subject: [PATCH 175/247] 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 <[email protected]>
- Signed-off-by: Hans Verkuil <[email protected]>
- Signed-off-by: Mauro Carvalho Chehab <[email protected]>
- ---
- drivers/media/platform/atmel/atmel-isc-base.c | 1 +
- drivers/media/platform/atmel/atmel-isc.h | 3 +++
- drivers/media/platform/atmel/atmel-sama5d2-isc.c | 14 ++++++++++++++
- 3 files changed, 18 insertions(+)
- --- a/drivers/media/platform/atmel/atmel-isc-base.c
- +++ b/drivers/media/platform/atmel/atmel-isc-base.c
- @@ -661,6 +661,7 @@ static void isc_set_pipeline(struct isc_
-
- isc->config_csc(isc);
- isc->config_cbc(isc);
- + isc->config_cc(isc);
- }
-
- static int isc_update_profile(struct isc_device *isc)
- --- a/drivers/media/platform/atmel/atmel-isc.h
- +++ b/drivers/media/platform/atmel/atmel-isc.h
- @@ -224,6 +224,8 @@ struct isc_reg_offsets {
- * specific CSC module
- * @config_cbc: pointer to a function that initializes product
- * specific CBC module
- + * @config_cc: pointer to a function that initializes product
- + * specific CC module
- *
- * @offsets: struct holding the product specific register offsets
- */
- @@ -297,6 +299,7 @@ struct isc_device {
- struct {
- void (*config_csc)(struct isc_device *isc);
- void (*config_cbc)(struct isc_device *isc);
- + void (*config_cc)(struct isc_device *isc);
- };
-
- struct isc_reg_offsets offsets;
- --- 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(struc
- 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 */
- @@ -251,6 +264,7 @@ static int atmel_isc_probe(struct platfo
-
- 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;
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