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95 lines
3.6 KiB
Diff
95 lines
3.6 KiB
Diff
From 6ccda3cf6a102ac4f6e21386d0dd0fedfb066525 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 12:57:04 +0200
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Subject: [PATCH 162/247] media: atmel: atmel-isc: extract CSC submodule config
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into separate function
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The CSC submodule is a part of the atmel-isc pipeline, and stands for
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Color Space Conversion. It is used to apply a matrix transformation to
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RGB pixels to convert them to the YUV components.
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The CSC submodule should be initialized in the product specific driver
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as it's product specific. Other products can implement it differently.
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[hverkuil: made isc_sama5d2_config_csc 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 | 8 +-------
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drivers/media/platform/atmel/atmel-isc.h | 7 +++++++
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drivers/media/platform/atmel/atmel-sama5d2-isc.c | 15 +++++++++++++++
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3 files changed, 23 insertions(+), 7 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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@@ -654,13 +654,7 @@ static void isc_set_pipeline(struct isc_
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regmap_bulk_write(regmap, ISC_GAM_GENTRY, gamma, GAMMA_ENTRIES);
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regmap_bulk_write(regmap, ISC_GAM_RENTRY, gamma, GAMMA_ENTRIES);
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- /* Convert RGB to YUV */
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- regmap_write(regmap, ISC_CSC_YR_YG, 0x42 | (0x81 << 16));
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- regmap_write(regmap, ISC_CSC_YB_OY, 0x19 | (0x10 << 16));
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- regmap_write(regmap, ISC_CSC_CBR_CBG, 0xFDA | (0xFB6 << 16));
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- regmap_write(regmap, ISC_CSC_CBB_OCB, 0x70 | (0x80 << 16));
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- regmap_write(regmap, ISC_CSC_CRR_CRG, 0x70 | (0xFA2 << 16));
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- regmap_write(regmap, ISC_CSC_CRB_OCR, 0xFEE | (0x80 << 16));
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+ isc->config_csc(isc);
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regmap_write(regmap, ISC_CBC_BRIGHT, ctrls->brightness);
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regmap_write(regmap, ISC_CBC_CONTRAST, ctrls->contrast);
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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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@@ -191,6 +191,9 @@ struct isc_ctrls {
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*
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* @max_width: maximum frame width, dependent on the internal RAM
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* @max_height: maximum frame height, dependent on the internal RAM
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+ *
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+ * @config_csc: pointer to a function that initializes product
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+ * specific CSC module
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*/
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struct isc_device {
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struct regmap *regmap;
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@@ -258,6 +261,10 @@ struct isc_device {
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u32 max_width;
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u32 max_height;
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+
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+ struct {
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+ void (*config_csc)(struct isc_device *isc);
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+ };
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};
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extern struct isc_format formats_list[];
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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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@@ -54,6 +54,19 @@
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#define ISC_CLK_MAX_DIV 255
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+static void isc_sama5d2_config_csc(struct isc_device *isc)
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+{
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+ struct regmap *regmap = isc->regmap;
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+
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+ /* Convert RGB to YUV */
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+ regmap_write(regmap, ISC_CSC_YR_YG, 0x42 | (0x81 << 16));
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+ regmap_write(regmap, ISC_CSC_YB_OY, 0x19 | (0x10 << 16));
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+ regmap_write(regmap, ISC_CSC_CBR_CBG, 0xFDA | (0xFB6 << 16));
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+ regmap_write(regmap, ISC_CSC_CBB_OCB, 0x70 | (0x80 << 16));
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+ regmap_write(regmap, ISC_CSC_CRR_CRG, 0x70 | (0xFA2 << 16));
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+ regmap_write(regmap, ISC_CSC_CRB_OCR, 0xFEE | (0x80 << 16));
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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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@@ -219,6 +232,8 @@ static int atmel_isc_probe(struct platfo
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isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH;
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isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT;
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+ isc->config_csc = isc_sama5d2_config_csc;
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+
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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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