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| author | Jacopo Mondi <jacopo+renesas@jmondi.org> | 2018-07-09 16:19:21 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab+samsung@kernel.org> | 2018-07-24 20:59:36 +0200 |
| commit | 53cf3100dd3af5f4ffbbe272e34f2150157aa425 (patch) | |
| tree | a0fb52eabff439f314f16ce6824535c38ff90a99 /drivers | |
| parent | media: dt-bindings: media: rcar-vin: Add 'data-enable-active' (diff) | |
| download | linux-53cf3100dd3af5f4ffbbe272e34f2150157aa425.tar.xz linux-53cf3100dd3af5f4ffbbe272e34f2150157aa425.zip | |
media: rcar-vin: Handle data-enable polarity
Handle data-enable signal polarity. If the polarity is not specifically
requested to be active low, use the active high default.
Signed-off-by: Jacopo Mondi <jacopo+renesas@jmondi.org>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+samsung@kernel.org>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/media/platform/rcar-vin/rcar-dma.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c index 1de598120286..9146f63430c2 100644 --- a/drivers/media/platform/rcar-vin/rcar-dma.c +++ b/drivers/media/platform/rcar-vin/rcar-dma.c @@ -123,6 +123,7 @@ /* Video n Data Mode Register 2 bits */ #define VNDMR2_VPS (1 << 30) #define VNDMR2_HPS (1 << 29) +#define VNDMR2_CES (1 << 28) #define VNDMR2_FTEV (1 << 17) #define VNDMR2_VLV(n) ((n & 0xf) << 12) @@ -698,6 +699,10 @@ static int rvin_setup(struct rvin_dev *vin) /* Vsync Signal Polarity Select */ if (!(vin->parallel->mbus_flags & V4L2_MBUS_VSYNC_ACTIVE_LOW)) dmr2 |= VNDMR2_VPS; + + /* Data Enable Polarity Select */ + if (vin->parallel->mbus_flags & V4L2_MBUS_DATA_ENABLE_LOW) + dmr2 |= VNDMR2_CES; } /* |