media: rcar-vin: Handle data-enable polarity (53cf3100) · Commits · 戴 / test

Handle data-enable signal polarity. If the polarity is not specifically requested to be active low, use the active high default. Signed-off-by:

drivers/media/platform/rcar-vin/rcar-dma.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -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;
		}

		/*