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76 lines
2.9 KiB
Diff
76 lines
2.9 KiB
Diff
From 96936a6753a13dea5a8f66de949e6594dd82ce22 Mon Sep 17 00:00:00 2001
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From: Eugen Hristev <eugen.hristev@microchip.com>
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Date: Tue, 13 Apr 2021 12:57:20 +0200
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Subject: [PATCH 178/247] media: atmel: atmel-isc: create callback for GAM
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submodule product specific
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The GAM submodule is a part of the atmel-isc pipeline, and stands for
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Gamma Correction. It is used to apply the gamma curve to the incoming pixels.
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Create a product specific callback for initializing the GAM submodule
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of the pipeline.
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For sama5d2 product, there is no special configuration at this moment,
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thus this function is a noop.
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[hverkuil: made isc_sama5d2_config_gam static]
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Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
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Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
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Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
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---
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drivers/media/platform/atmel/atmel-isc-base.c | 1 +
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drivers/media/platform/atmel/atmel-isc.h | 3 +++
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drivers/media/platform/atmel/atmel-sama5d2-isc.c | 6 ++++++
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3 files changed, 10 insertions(+)
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--- a/drivers/media/platform/atmel/atmel-isc-base.c
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+++ b/drivers/media/platform/atmel/atmel-isc-base.c
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@@ -663,6 +663,7 @@ static void isc_set_pipeline(struct isc_
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isc->config_csc(isc);
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isc->config_cbc(isc);
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isc->config_cc(isc);
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+ isc->config_gam(isc);
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}
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static int isc_update_profile(struct isc_device *isc)
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--- a/drivers/media/platform/atmel/atmel-isc.h
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+++ b/drivers/media/platform/atmel/atmel-isc.h
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@@ -228,6 +228,8 @@ struct isc_reg_offsets {
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* specific CBC module
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* @config_cc: pointer to a function that initializes product
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* specific CC module
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+ * @config_gam: pointer to a function that initializes product
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+ * specific GAMMA module
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* @config_ctrls: pointer to a functoin that initializes product
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* specific v4l2 controls.
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*
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@@ -305,6 +307,7 @@ struct isc_device {
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void (*config_csc)(struct isc_device *isc);
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void (*config_cbc)(struct isc_device *isc);
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void (*config_cc)(struct isc_device *isc);
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+ void (*config_gam)(struct isc_device *isc);
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void (*config_ctrls)(struct isc_device *isc,
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const struct v4l2_ctrl_ops *ops);
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--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
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+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
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@@ -112,6 +112,11 @@ static void isc_sama5d2_config_dpc(struc
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/* This module is not present on sama5d2 pipeline */
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}
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+static void isc_sama5d2_config_gam(struct isc_device *isc)
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+{
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+ /* No specific gamma configuration */
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+}
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+
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/* Gamma table with gamma 1/2.2 */
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static const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
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/* 0 --> gamma 1/1.8 */
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@@ -282,6 +287,7 @@ static int atmel_isc_probe(struct platfo
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isc->config_csc = isc_sama5d2_config_csc;
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isc->config_cbc = isc_sama5d2_config_cbc;
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isc->config_cc = isc_sama5d2_config_cc;
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+ isc->config_gam = isc_sama5d2_config_gam;
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isc->config_ctrls = isc_sama5d2_config_ctrls;
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isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;
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