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authorEugen Hristev <eugen.hristev@microchip.com>2021-04-13 12:57:08 +0200
committerMauro Carvalho Chehab <mchehab+huawei@kernel.org>2021-06-08 12:57:55 +0200
commit4fc9e8a775d4b3630d1bab6ad58a02dae943787f (patch)
tree96366fcc5aab6262db0d221dd4e28b9c67f5a9c0
parentd3b2ee5478c8569d32c4726c5920b96a9855419c (diff)
media: atmel: atmel-isc: add CBC to the reg offsets struct
The CBC submodule is a part of the atmel-isc pipeline, and stands for Contrast Brightness Control. It is used to apply gains and offsets to the luma (Y) and chroma (U, V) components of the YUV elements. Add cbc to the reg offsets struct. This will allow different products to have a different reg offset for this particular module. 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.c2
-rw-r--r--drivers/media/platform/atmel/atmel-isc-regs.h3
-rw-r--r--drivers/media/platform/atmel/atmel-isc.h2
-rw-r--r--drivers/media/platform/atmel/atmel-sama5d2-isc.c7
4 files changed, 11 insertions, 3 deletions
diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index 865410e10e70..b7728914fda8 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -2325,7 +2325,7 @@ int isc_pipeline_init(struct isc_device *isc)
REG_FIELD(ISC_GAM_CTRL, 2, 2),
REG_FIELD(ISC_GAM_CTRL, 3, 3),
REG_FIELD(ISC_CSC_CTRL + isc->offsets.csc, 0, 0),
- REG_FIELD(ISC_CBC_CTRL, 0, 0),
+ REG_FIELD(ISC_CBC_CTRL + isc->offsets.cbc, 0, 0),
REG_FIELD(ISC_SUB422_CTRL, 0, 0),
REG_FIELD(ISC_SUB420_CTRL, 0, 0),
};
diff --git a/drivers/media/platform/atmel/atmel-isc-regs.h b/drivers/media/platform/atmel/atmel-isc-regs.h
index 5a65600c5f88..a5e2fe01ba9f 100644
--- a/drivers/media/platform/atmel/atmel-isc-regs.h
+++ b/drivers/media/platform/atmel/atmel-isc-regs.h
@@ -177,6 +177,9 @@
/* Color Space Conversion CRB OCR Register */
#define ISC_CSC_CRB_OCR 0x000003b0
+/* Offset for CBC register specific to sama5d2 product */
+#define ISC_SAMA5D2_CBC_OFFSET 0
+
/* Contrast And Brightness Control Register */
#define ISC_CBC_CTRL 0x000003b4
diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
index cb47932197b1..b1fe93c93c61 100644
--- a/drivers/media/platform/atmel/atmel-isc.h
+++ b/drivers/media/platform/atmel/atmel-isc.h
@@ -147,9 +147,11 @@ struct isc_ctrls {
/*
* struct isc_reg_offsets - ISC device register offsets
* @csc: Offset for the CSC register
+ * @cbc: Offset for the CBC register
*/
struct isc_reg_offsets {
u32 csc;
+ u32 cbc;
};
/*
diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
index b5f654f263cc..657d50ae9fa8 100644
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -77,8 +77,10 @@ static void isc_sama5d2_config_cbc(struct isc_device *isc)
{
struct regmap *regmap = isc->regmap;
- regmap_write(regmap, ISC_CBC_BRIGHT, isc->ctrls.brightness);
- regmap_write(regmap, ISC_CBC_CONTRAST, isc->ctrls.contrast);
+ regmap_write(regmap, ISC_CBC_BRIGHT + isc->offsets.cbc,
+ isc->ctrls.brightness);
+ regmap_write(regmap, ISC_CBC_CONTRAST + isc->offsets.cbc,
+ isc->ctrls.contrast);
}
/* Gamma table with gamma 1/2.2 */
@@ -229,6 +231,7 @@ static int atmel_isc_probe(struct platform_device *pdev)
isc->config_cbc = isc_sama5d2_config_cbc;
isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;
+ isc->offsets.cbc = ISC_SAMA5D2_CBC_OFFSET;
/* sama5d2-isc - 8 bits per beat */
isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;

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