media: atmel: atmel-isc: specialize dma cfg

The dma configuration (DCFG) is specific to the product.
Move this configuration in the product specific driver, and add the
field inside the driver struct.
Signed-off-by: Eugen Hristev <eugen.hristev@microchip.com>
Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>

drivers/media/platform/atmel/atmel-isc-base.c

@@ -724,8 +724,7 @@ static int isc_configure(struct isc_device *isc)
 	rlp_mode = isc->config.rlp_cfg_mode;
 	pipeline = isc->config.bits_pipeline;
 
-	dcfg = isc->config.dcfg_imode |
-		       ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;
+	dcfg = isc->config.dcfg_imode | isc->dcfg;
 
 	pfe_cfg0  |= subdev->pfe_cfg0 | ISC_PFE_CFG0_MODE_PROGRESSIVE;
 	mask = ISC_PFE_CFG0_BPS_MASK | ISC_PFE_CFG0_HPOL_LOW |

drivers/media/platform/atmel/atmel-isc.h

@@ -150,6 +150,7 @@ struct isc_ctrls {
  * @hclock:		Hclock clock input (refer datasheet)
  * @ispck:		iscpck clock (refer datasheet)
  * @isc_clks:		ISC clocks
+ * @dcfg:		DMA master configuration, architecture dependent
  *
  * @dev:		Registered device driver
  * @v4l2_dev:		v4l2 registered device
@@ -197,6 +198,7 @@ struct isc_device {
 	struct clk		*hclock;
 	struct clk		*ispck;
 	struct isc_clk		isc_clks[2];
+	u32			dcfg;
 
 	struct device		*dev;
 	struct v4l2_device	v4l2_dev;

drivers/media/platform/atmel/atmel-sama5d2-isc.c

@@ -198,6 +198,9 @@ static int atmel_isc_probe(struct platform_device *pdev)
 	isc->max_width = ISC_SAMA5D2_MAX_SUPPORT_WIDTH;
 	isc->max_height = ISC_SAMA5D2_MAX_SUPPORT_HEIGHT;
 
+	/* sama5d2-isc - 8 bits per beat */
+	isc->dcfg = ISC_DCFG_YMBSIZE_BEATS8 | ISC_DCFG_CMBSIZE_BEATS8;
+
 	ret = isc_pipeline_init(isc);
 	if (ret)
 		return ret;