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authorEugen Hristev <eugen.hristev@microchip.com>2021-04-13 12:57:20 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-06-08 14:19:17 +0200
commite48848a6af150ed09d9761167aad2a7cd023470b (patch)
tree9ba467213659c1b0d576d839aefe95aa0455419f
parent883285556388affe1273a50d1af8772c30aa6d89 (diff)
media: atmel: atmel-isc: create callback for GAM submodule product specific
The GAM submodule is a part of the atmel-isc pipeline, and stands for Gamma Correction. It is used to apply the gamma curve to the incoming pixels. Create a product specific callback for initializing the GAM submodule of the pipeline. For sama5d2 product, there is no special configuration at this moment, thus this function is a noop. [hverkuil: made isc_sama5d2_config_gam 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>
-rw-r--r--drivers/media/platform/atmel/atmel-isc-base.c1
-rw-r--r--drivers/media/platform/atmel/atmel-isc.h3
-rw-r--r--drivers/media/platform/atmel/atmel-sama5d2-isc.c6
3 files changed, 10 insertions, 0 deletions
diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index 777a5dc19d6e..aef0d6570d39 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -663,6 +663,7 @@ static void isc_set_pipeline(struct isc_device *isc, u32 pipeline)
isc->config_csc(isc);
isc->config_cbc(isc);
isc->config_cc(isc);
+ isc->config_gam(isc);
}
static int isc_update_profile(struct isc_device *isc)
diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
index d6cd85a4c3e9..1e6988f1876e 100644
--- a/drivers/media/platform/atmel/atmel-isc.h
+++ b/drivers/media/platform/atmel/atmel-isc.h
@@ -229,6 +229,8 @@ struct isc_reg_offsets {
* specific CBC module
* @config_cc: pointer to a function that initializes product
* specific CC module
+ * @config_gam: pointer to a function that initializes product
+ * specific GAMMA module
* @config_ctrls: pointer to a functoin that initializes product
* specific v4l2 controls.
*
@@ -306,6 +308,7 @@ struct isc_device {
void (*config_csc)(struct isc_device *isc);
void (*config_cbc)(struct isc_device *isc);
void (*config_cc)(struct isc_device *isc);
+ void (*config_gam)(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 b6b7dbdbfd1d..6973c65822d8 100644
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -112,6 +112,11 @@ static void isc_sama5d2_config_dpc(struct isc_device *isc)
/* This module is not present on sama5d2 pipeline */
}
+static void isc_sama5d2_config_gam(struct isc_device *isc)
+{
+ /* No specific gamma configuration */
+}
+
/* Gamma table with gamma 1/2.2 */
static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
/* 0 --> gamma 1/1.8 */
@@ -261,6 +266,7 @@ static int atmel_isc_probe(struct platform_device *pdev)
isc->config_csc = isc_sama5d2_config_csc;
isc->config_cbc = isc_sama5d2_config_cbc;
isc->config_cc = isc_sama5d2_config_cc;
+ isc->config_gam = isc_sama5d2_config_gam;
isc->config_ctrls = isc_sama5d2_config_ctrls;
isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;

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