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| author | Alexander Stein <alexander.stein@ew.tq-group.com> | 2023-11-02 10:50:47 +0100 |
|---|---|---|
| committer | Hans Verkuil <hverkuil-cisco@xs4all.nl> | 2023-12-13 13:21:19 +0100 |
| commit | d92e7a013ff33f4e0b31bbf768d0c85a8acefebf (patch) | |
| tree | fc40cf2caa0de192f841c08c3839c51c77923bc2 /include/media/v4l2-cci.h | |
| parent | 1545c2b92bdf408e860dea2cf958b65e17a0ce18 (diff) | |
| download | lwn-d92e7a013ff33f4e0b31bbf768d0c85a8acefebf.tar.gz lwn-d92e7a013ff33f4e0b31bbf768d0c85a8acefebf.zip | |
media: v4l2-cci: Add support for little-endian encoded registers
Some sensors, e.g. Sony IMX290, are using little-endian registers. Add
support for those by encoding the endianness into Bit 20 of the register
address.
Fixes: af73323b9770 ("media: imx290: Convert to new CCI register access helpers")
Cc: stable@vger.kernel.org
Signed-off-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
[Sakari Ailus: Fixed commit message.]
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Diffstat (limited to 'include/media/v4l2-cci.h')
| -rw-r--r-- | include/media/v4l2-cci.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/include/media/v4l2-cci.h b/include/media/v4l2-cci.h index 406772a4e32e..4e96e90ee636 100644 --- a/include/media/v4l2-cci.h +++ b/include/media/v4l2-cci.h @@ -43,12 +43,17 @@ struct cci_reg_sequence { #define CCI_REG_WIDTH_BYTES(x) FIELD_GET(CCI_REG_WIDTH_MASK, x) #define CCI_REG_WIDTH(x) (CCI_REG_WIDTH_BYTES(x) << 3) #define CCI_REG_ADDR(x) FIELD_GET(CCI_REG_ADDR_MASK, x) +#define CCI_REG_LE BIT(20) #define CCI_REG8(x) ((1 << CCI_REG_WIDTH_SHIFT) | (x)) #define CCI_REG16(x) ((2 << CCI_REG_WIDTH_SHIFT) | (x)) #define CCI_REG24(x) ((3 << CCI_REG_WIDTH_SHIFT) | (x)) #define CCI_REG32(x) ((4 << CCI_REG_WIDTH_SHIFT) | (x)) #define CCI_REG64(x) ((8 << CCI_REG_WIDTH_SHIFT) | (x)) +#define CCI_REG16_LE(x) (CCI_REG_LE | (2U << CCI_REG_WIDTH_SHIFT) | (x)) +#define CCI_REG24_LE(x) (CCI_REG_LE | (3U << CCI_REG_WIDTH_SHIFT) | (x)) +#define CCI_REG32_LE(x) (CCI_REG_LE | (4U << CCI_REG_WIDTH_SHIFT) | (x)) +#define CCI_REG64_LE(x) (CCI_REG_LE | (8U << CCI_REG_WIDTH_SHIFT) | (x)) /** * cci_read() - Read a value from a single CCI register |