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From d53eb90044c19ba22b51978fcb007d9b5200b83a Mon Sep 17 00:00:00 2001
From: Eugen Hristev <eugen.hristev@microchip.com>
Date: Tue, 13 Apr 2021 12:57:19 +0200
Subject: [PATCH 177/247] media: atmel: atmel-isc: create callback for DPC
submodule product specific
The DPC submodule is a part of the atmel-isc pipeline, and stands for
Defective Pixel Correction. Its purpose is to detect defective pixels and
correct them if possible with the help of adjacent pixels.
Create a product specific callback for initializing the DPC submodule
of the pipeline.
For sama5d2 product, this module does not exist, thus this function is a noop.
[hverkuil: made isc_sama5d2_config_dpc 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 | 6 ++++++
3 files changed, 10 insertions(+)
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -659,6 +659,7 @@ static void isc_set_pipeline(struct isc_
regmap_bulk_write(regmap, ISC_GAM_GENTRY, gamma, GAMMA_ENTRIES);
regmap_bulk_write(regmap, ISC_GAM_RENTRY, gamma, GAMMA_ENTRIES);
+ isc->config_dpc(isc);
isc->config_csc(isc);
isc->config_cbc(isc);
isc->config_cc(isc);
--- a/drivers/media/platform/atmel/atmel-isc.h
+++ b/drivers/media/platform/atmel/atmel-isc.h
@@ -220,6 +220,8 @@ struct isc_reg_offsets {
* @max_width: maximum frame width, dependent on the internal RAM
* @max_height: maximum frame height, dependent on the internal RAM
*
+ * @config_dpc: pointer to a function that initializes product
+ * specific DPC module
* @config_csc: pointer to a function that initializes product
* specific CSC module
* @config_cbc: pointer to a function that initializes product
@@ -299,6 +301,7 @@ struct isc_device {
u32 max_height;
struct {
+ void (*config_dpc)(struct isc_device *isc);
void (*config_csc)(struct isc_device *isc);
void (*config_cbc)(struct isc_device *isc);
void (*config_cc)(struct isc_device *isc);
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -107,6 +107,11 @@ static void isc_sama5d2_config_ctrls(str
v4l2_ctrl_new_std(hdl, ops, V4L2_CID_CONTRAST, -2048, 2047, 1, 256);
}
+static void isc_sama5d2_config_dpc(struct isc_device *isc)
+{
+ /* This module is not present on sama5d2 pipeline */
+}
+
/* Gamma table with gamma 1/2.2 */
static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
/* 0 --> gamma 1/1.8 */
@@ -273,6 +278,7 @@ static int atmel_isc_probe(struct platfo
isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH;
isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT;
+ isc->config_dpc = isc_sama5d2_config_dpc;
isc->config_csc = isc_sama5d2_config_csc;
isc->config_cbc = isc_sama5d2_config_cbc;
isc->config_cc = isc_sama5d2_config_cc;
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