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media: atmel: atmel-isc: add SUB422 and SUB420 to register offsets

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The SUB submodules are a part of the atmel-isc pipeline, and stand for
Subsampling. They are used to subsample the original YUV 4:4:4 pixel ratio
aspect to either 4:2:2 or 4:2:0.
Add sub420 and sub422 to the reg offsets struct.
This will allow different products to have a different reg offset for these
particular modules.

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>
This commit is contained in:
Eugen Hristev 2021-04-13 12:57:09 +02:00 committed by Mauro Carvalho Chehab
parent 4fc9e8a775
commit 87b62b6d55
4 changed files with 12 additions and 2 deletions
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4
drivers/media/platform/atmel/atmel-isc-base.c
View file

@ -2326,8 +2326,8 @@ int isc_pipeline_init(struct isc_device *isc)
REG_FIELD(ISC_GAM_CTRL, 3, 3),
REG_FIELD(ISC_CSC_CTRL + isc->offsets.csc, 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),
REG_FIELD(ISC_SUB422_CTRL + isc->offsets.sub422, 0, 0),
REG_FIELD(ISC_SUB420_CTRL + isc->offsets.sub420, 0, 0),
};
for (i = 0; i < ISC_PIPE_LINE_NODE_NUM; i++) {

4
drivers/media/platform/atmel/atmel-isc-regs.h
View file

@ -194,9 +194,13 @@
#define ISC_CBC_CONTRAST 0x000003c0
#define ISC_CBC_CONTRAST_MASK GENMASK(11, 0)
/* Offset for SUB422 register specific to sama5d2 product */
#define ISC_SAMA5D2_SUB422_OFFSET 0
/* Subsampling 4:4:4 to 4:2:2 Control Register */
#define ISC_SUB422_CTRL 0x000003c4
/* Offset for SUB420 register specific to sama5d2 product */
#define ISC_SAMA5D2_SUB420_OFFSET 0
/* Subsampling 4:2:2 to 4:2:0 Control Register */
#define ISC_SUB420_CTRL 0x000003cc

4
drivers/media/platform/atmel/atmel-isc.h
View file

@ -148,10 +148,14 @@ struct isc_ctrls {
* struct isc_reg_offsets - ISC device register offsets
* @csc: Offset for the CSC register
* @cbc: Offset for the CBC register
* @sub422: Offset for the SUB422 register
* @sub420: Offset for the SUB420 register
*/
struct isc_reg_offsets {
u32 csc;
u32 cbc;
u32 sub422;
u32 sub420;
};
/*

2
drivers/media/platform/atmel/atmel-sama5d2-isc.c
View file

@ -232,6 +232,8 @@ static int atmel_isc_probe(struct platform_device *pdev)
isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;
isc->offsets.cbc = ISC_SAMA5D2_CBC_OFFSET;
isc->offsets.sub422 = ISC_SAMA5D2_SUB422_OFFSET;
isc->offsets.sub420 = ISC_SAMA5D2_SUB420_OFFSET;
/* sama5d2-isc - 8 bits per beat */
isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;