at91: kernel v5.15: copy config and patches from 5.10

[openwrt/openwrt.git] / target / linux / at91 / patches-5.15 / 175-media-atmel-atmel-isc-add-CC-initialization-function.patch

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 (file)
index 0000000..69491d7
--- /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;