[PATCH v3 5/8] media: rcar-vin: Handle data-enable polarity
From: niklas.soderlund@ragnatech.se (Niklas Söderlund)
Date: 2018-06-04 12:13:16
Also in:
linux-devicetree, linux-media, linux-renesas-soc
Hi Jacopo, Thanks for your work. On 2018-05-29 17:05:56 +0200, Jacopo Mondi wrote:
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 S?derlund <niklas.soderlund+renesas@ragnatech.se>
quoted hunk ↗ jump to hunk
--- v3: - use new property to set the CES bit --- 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
-- Regards, Niklas S?derlund