diff options
Diffstat (limited to 'target/linux/at91/patches-5.15/175-media-atmel-atmel-isc-add-CC-initialization-function.patch')
| -rw-r--r-- | target/linux/at91/patches-5.15/175-media-atmel-atmel-isc-add-CC-initialization-function.patch | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.15/175-media-atmel-atmel-isc-add-CC-initialization-function.patch b/target/linux/at91/patches-5.15/175-media-atmel-atmel-isc-add-CC-initialization-function.patch new file mode 100644 index 0000000000..69491d7d13 --- /dev/null +++ b/target/linux/at91/patches-5.15/175-media-atmel-atmel-isc-add-CC-initialization-function.patch @@ -0,0 +1,83 @@ +From 0db91d2a803221c313c9f2cd1d71050d7c5a7b5b Mon Sep 17 00:00:00 2001 +From: Eugen Hristev <eugen.hristev@microchip.com> +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 <eugen.hristev@microchip.com> +Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl> +Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org> +--- + 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; |