[PATCH v4 5/6] media: rcar-vin: Handle data-enable polarity
From: Jacopo Mondi <jacopo+renesas@jmondi.org>
Date: 2018-06-12 14:26:05
Also in:
linux-arm-kernel, linux-media, linux-renesas-soc
Subsystem:
media input infrastructure (v4l/dvb), the rest · Maintainers:
Mauro Carvalho Chehab, Linus Torvalds
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> --- drivers/media/platform/rcar-vin/rcar-dma.c | 5 +++++ 1 file changed, 5 insertions(+)
diff --git a/drivers/media/platform/rcar-vin/rcar-dma.c b/drivers/media/platform/rcar-vin/rcar-dma.c
index d2b7002..9145b56 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; } /*
--
2.7.4
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