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83 lines
3.0 KiB
Diff
83 lines
3.0 KiB
Diff
From 52e4b779ae1af3e322d0c673375dcd51315739d4 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 12:57:08 +0200
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Subject: [PATCH 166/247] media: atmel: atmel-isc: add CBC to the reg offsets
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struct
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The CBC submodule is a part of the atmel-isc pipeline, and stands for
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Contrast Brightness Control. It is used to apply gains and offsets to the
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luma (Y) and chroma (U, V) components of the YUV elements.
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Add cbc to the reg offsets struct. This will allow different products
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to have a different reg offset for this particular module.
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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 | 2 +-
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drivers/media/platform/atmel/atmel-isc-regs.h | 3 +++
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drivers/media/platform/atmel/atmel-isc.h | 2 ++
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drivers/media/platform/atmel/atmel-sama5d2-isc.c | 7 +++++--
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4 files changed, 11 insertions(+), 3 deletions(-)
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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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@@ -2325,7 +2325,7 @@ int isc_pipeline_init(struct isc_device
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REG_FIELD(ISC_GAM_CTRL, 2, 2),
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REG_FIELD(ISC_GAM_CTRL, 3, 3),
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REG_FIELD(ISC_CSC_CTRL + isc->offsets.csc, 0, 0),
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- REG_FIELD(ISC_CBC_CTRL, 0, 0),
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+ REG_FIELD(ISC_CBC_CTRL + isc->offsets.cbc, 0, 0),
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REG_FIELD(ISC_SUB422_CTRL, 0, 0),
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REG_FIELD(ISC_SUB420_CTRL, 0, 0),
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};
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--- a/drivers/media/platform/atmel/atmel-isc-regs.h
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+++ b/drivers/media/platform/atmel/atmel-isc-regs.h
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@@ -177,6 +177,9 @@
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/* Color Space Conversion CRB OCR Register */
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#define ISC_CSC_CRB_OCR 0x000003b0
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+/* Offset for CBC register specific to sama5d2 product */
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+#define ISC_SAMA5D2_CBC_OFFSET 0
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+
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/* Contrast And Brightness Control Register */
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#define ISC_CBC_CTRL 0x000003b4
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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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@@ -146,9 +146,11 @@ struct isc_ctrls {
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/*
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* struct isc_reg_offsets - ISC device register offsets
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* @csc: Offset for the CSC register
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+ * @cbc: Offset for the CBC register
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*/
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struct isc_reg_offsets {
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u32 csc;
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+ u32 cbc;
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};
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/*
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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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@@ -77,8 +77,10 @@ static void isc_sama5d2_config_cbc(struc
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{
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struct regmap *regmap = isc->regmap;
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- regmap_write(regmap, ISC_CBC_BRIGHT, isc->ctrls.brightness);
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- regmap_write(regmap, ISC_CBC_CONTRAST, isc->ctrls.contrast);
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+ regmap_write(regmap, ISC_CBC_BRIGHT + isc->offsets.cbc,
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+ isc->ctrls.brightness);
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+ regmap_write(regmap, ISC_CBC_CONTRAST + isc->offsets.cbc,
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+ isc->ctrls.contrast);
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}
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/* Gamma table with gamma 1/2.2 */
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@@ -250,6 +252,7 @@ static int atmel_isc_probe(struct platfo
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isc->config_cbc = isc_sama5d2_config_cbc;
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isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;
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+ isc->offsets.cbc = ISC_SAMA5D2_CBC_OFFSET;
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/* sama5d2-isc - 8 bits per beat */
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isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;
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