openwrt/target/linux/at91/patches-5.10/161-media-atmel-atmel-isc-specialize-dma-cfg.patch

From c42305f52560a1be6fc25a2f23579c7b323de654 Mon Sep 17 00:00:00 2001
From: Eugen Hristev <[email protected]>
Date: Tue, 13 Apr 2021 12:57:03 +0200
Subject: [PATCH 161/247] 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 <[email protected]>
Signed-off-by: Hans Verkuil <[email protected]>
Signed-off-by: Mauro Carvalho Chehab <[email protected]>
---
 drivers/media/platform/atmel/atmel-isc-base.c    | 3 +--
 drivers/media/platform/atmel/atmel-isc.h         | 2 ++
 drivers/media/platform/atmel/atmel-sama5d2-isc.c | 3 +++
 3 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index ed0048e79f3b..07ba439eb7e9 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/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 |
diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
index f208fb691ac9..88ec4268de11 100644
--- a/drivers/media/platform/atmel/atmel-isc.h
+++ b/drivers/media/platform/atmel/atmel-isc.h
@@ -149,6 +149,7 @@ 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
@@ -196,6 +197,7 @@ 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;
diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
index 39fc8d4f9bdc..12edeb07b618 100644
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -219,6 +219,9 @@ 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;
-- 
2.32.0