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-rw-r--r--target/linux/at91/patches-5.10/179-media-atmel-atmel-isc-create-callback-for-RLP-submod.patch104
1 files changed, 104 insertions, 0 deletions
diff --git a/target/linux/at91/patches-5.10/179-media-atmel-atmel-isc-create-callback-for-RLP-submod.patch b/target/linux/at91/patches-5.10/179-media-atmel-atmel-isc-create-callback-for-RLP-submod.patch
new file mode 100644
index 0000000000..74a08b2209
--- /dev/null
+++ b/target/linux/at91/patches-5.10/179-media-atmel-atmel-isc-create-callback-for-RLP-submod.patch
@@ -0,0 +1,104 @@
+From ece1d7059731e31875e6eb464da4fb4a16465305 Mon Sep 17 00:00:00 2001
+From: Eugen Hristev <eugen.hristev@microchip.com>
+Date: Tue, 13 Apr 2021 12:57:21 +0200
+Subject: [PATCH 179/247] media: atmel: atmel-isc: create callback for RLP
+ submodule product specific
+
+The RLP submodule is a part of the atmel-isc pipeline, and stands for
+Rounding,Limiting and Packaging. It used to extract specific data from the
+ISC pipeline. For example if we want to output greyscale 8 bit, we would
+use limiting to 8 bits, and packaging to Luma component only.
+
+Create a product specific callback for initializing the RLP submodule
+of the pipeline
+
+[hverkuil: made isc_sama5d2_config_rlp 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 | 6 ++----
+ drivers/media/platform/atmel/atmel-isc.h | 3 +++
+ drivers/media/platform/atmel/atmel-sama5d2-isc.c | 10 ++++++++++
+ 3 files changed, 15 insertions(+), 4 deletions(-)
+
+diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
+index aef0d6570d39..67c16ca17672 100644
+--- a/drivers/media/platform/atmel/atmel-isc-base.c
++++ b/drivers/media/platform/atmel/atmel-isc-base.c
+@@ -719,11 +719,10 @@ static void isc_set_histogram(struct isc_device *isc, bool enable)
+ static int isc_configure(struct isc_device *isc)
+ {
+ struct regmap *regmap = isc->regmap;
+- u32 pfe_cfg0, rlp_mode, dcfg, mask, pipeline;
++ u32 pfe_cfg0, dcfg, mask, pipeline;
+ struct isc_subdev_entity *subdev = isc->current_subdev;
+
+ pfe_cfg0 = isc->config.sd_format->pfe_cfg0_bps;
+- rlp_mode = isc->config.rlp_cfg_mode;
+ pipeline = isc->config.bits_pipeline;
+
+ dcfg = isc->config.dcfg_imode | isc->dcfg;
+@@ -736,8 +735,7 @@ static int isc_configure(struct isc_device *isc)
+
+ regmap_update_bits(regmap, ISC_PFE_CFG0, mask, pfe_cfg0);
+
+- regmap_update_bits(regmap, ISC_RLP_CFG + isc->offsets.rlp,
+- ISC_RLP_CFG_MODE_MASK, rlp_mode);
++ isc->config_rlp(isc);
+
+ regmap_write(regmap, ISC_DCFG + isc->offsets.dma, dcfg);
+
+diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
+index 151997c11f56..24006327c5e4 100644
+--- a/drivers/media/platform/atmel/atmel-isc.h
++++ b/drivers/media/platform/atmel/atmel-isc.h
+@@ -230,6 +230,8 @@ struct isc_reg_offsets {
+ * specific CC module
+ * @config_gam: pointer to a function that initializes product
+ * specific GAMMA module
++ * @config_rlp: pointer to a function that initializes product
++ * specific RLP module
+ * @config_ctrls: pointer to a functoin that initializes product
+ * specific v4l2 controls.
+ *
+@@ -308,6 +310,7 @@ struct isc_device {
+ void (*config_cbc)(struct isc_device *isc);
+ void (*config_cc)(struct isc_device *isc);
+ void (*config_gam)(struct isc_device *isc);
++ void (*config_rlp)(struct isc_device *isc);
+
+ void (*config_ctrls)(struct isc_device *isc,
+ const struct v4l2_ctrl_ops *ops);
+diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+index b99849ecb8a1..86704a1a24b9 100644
+--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
++++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+@@ -117,6 +117,15 @@ static void isc_sama5d2_config_gam(struct isc_device *isc)
+ /* No specific gamma configuration */
+ }
+
++static void isc_sama5d2_config_rlp(struct isc_device *isc)
++{
++ struct regmap *regmap = isc->regmap;
++ u32 rlp_mode = isc->config.rlp_cfg_mode;
++
++ regmap_update_bits(regmap, ISC_RLP_CFG + isc->offsets.rlp,
++ ISC_RLP_CFG_MODE_MASK, rlp_mode);
++}
++
+ /* Gamma table with gamma 1/2.2 */
+ static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
+ /* 0 --> gamma 1/1.8 */
+@@ -288,6 +297,7 @@ static int atmel_isc_probe(struct platform_device *pdev)
+ isc->config_cbc = isc_sama5d2_config_cbc;
+ isc->config_cc = isc_sama5d2_config_cc;
+ isc->config_gam = isc_sama5d2_config_gam;
++ isc->config_rlp = isc_sama5d2_config_rlp;
+ isc->config_ctrls = isc_sama5d2_config_ctrls;
+
+ isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;
+--
+2.32.0
+