linux-kernel - [PATCH v2 25/30] media: atmel: atmel-isc: create an adapt pipeline callback for product specific

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Message-ID: <20210405155105.162529-26-eugen.hristev@microchip.com>
Date:   Mon, 5 Apr 2021 18:51:00 +0300
From:   Eugen Hristev <eugen.hristev@...rochip.com>
To:     <devicetree@...r.kernel.org>, <linux-media@...r.kernel.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>,
        Eugen Hristev <eugen.hristev@...rochip.com>
Subject: [PATCH v2 25/30] media: atmel: atmel-isc: create an adapt pipeline callback for product specific

Once the pipeline is set in the base code, create a callback that will adapt
the ISC pipeline to each product.
Create the adapt_pipeline callback that will be used in this fashion.

Signed-off-by: Eugen Hristev <eugen.hristev@...rochip.com>
---
Changes in v2:
- addded function prototype to avoid warning with W=1

 drivers/media/platform/atmel/atmel-isc-base.c    |  4 ++++
 drivers/media/platform/atmel/atmel-isc.h         |  5 +++++
 drivers/media/platform/atmel/atmel-sama5d2-isc.c | 12 ++++++++++++
 3 files changed, 21 insertions(+)

diff --git a/drivers/media/platform/atmel/atmel-isc-base.c b/drivers/media/platform/atmel/atmel-isc-base.c
index 6746c9060e3f..a3c299068bd5 100644
--- a/drivers/media/platform/atmel/atmel-isc-base.c
+++ b/drivers/media/platform/atmel/atmel-isc-base.c
@@ -1047,6 +1047,10 @@ static int isc_try_configure_pipeline(struct isc_device *isc)
 	default:
 		isc->try_config.bits_pipeline = 0x0;
 	}
+
+	/* Tune the pipeline to product specific */
+	isc->adapt_pipeline(isc);
+
 	return 0;
 }
 
diff --git a/drivers/media/platform/atmel/atmel-isc.h b/drivers/media/platform/atmel/atmel-isc.h
index 14e318a7373c..19cc60dfcbe0 100644
--- a/drivers/media/platform/atmel/atmel-isc.h
+++ b/drivers/media/platform/atmel/atmel-isc.h
@@ -236,6 +236,9 @@ struct isc_reg_offsets {
  * @config_ctrls:	pointer to a functoin that initializes product
  *			specific v4l2 controls.
  *
+ * @adapt_pipeline:	pointer to a function that adapts the pipeline bits
+ *			to the product specific pipeline
+ *
  * @offsets:		struct holding the product specific register offsets
  * @controller_formats:	pointer to the array of possible formats that the
  *			controller can output
@@ -321,6 +324,8 @@ struct isc_device {
 
 		void (*config_ctrls)(struct isc_device *isc,
 				     const struct v4l2_ctrl_ops *ops);
+
+		void (*adapt_pipeline)(struct isc_device *isc);
 	};
 
 	struct isc_reg_offsets		offsets;
diff --git a/drivers/media/platform/atmel/atmel-sama5d2-isc.c b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
index a5823a3a6111..b2ace528b260 100644
--- a/drivers/media/platform/atmel/atmel-sama5d2-isc.c
+++ b/drivers/media/platform/atmel/atmel-sama5d2-isc.c
@@ -54,12 +54,17 @@
 
 #define ISC_CLK_MAX_DIV		255
 
+#define ISC_SAMA5D2_PIPELINE \
+	(WB_ENABLE | CFA_ENABLE | CC_ENABLE | GAM_ENABLES | CSC_ENABLE | \
+	CBC_ENABLE | SUB422_ENABLE | SUB420_ENABLE)
+
 void isc_sama5d2_config_csc(struct isc_device *isc);
 void isc_sama5d2_config_cbc(struct isc_device *isc);
 void isc_sama5d2_config_cc(struct isc_device *isc);
 void isc_sama5d2_config_dpc(struct isc_device *isc);
 void isc_sama5d2_config_gam(struct isc_device *isc);
 void isc_sama5d2_config_rlp(struct isc_device *isc);
+void isc_sama5d2_adapt_pipeline(struct isc_device *isc);
 
 void isc_sama5d2_config_ctrls(struct isc_device *isc,
 			      const struct v4l2_ctrl_ops *ops);
@@ -267,6 +272,11 @@ void isc_sama5d2_config_rlp(struct isc_device *isc)
 			   ISC_RLP_CFG_MODE_MASK, rlp_mode);
 }
 
+void isc_sama5d2_adapt_pipeline(struct isc_device *isc)
+{
+	isc->try_config.bits_pipeline &= ISC_SAMA5D2_PIPELINE;
+}
+
 /* Gamma table with gamma 1/2.2 */
 const u32 isc_sama5d2_gamma_table[][GAMMA_ENTRIES] = {
 	/* 0 --> gamma 1/1.8 */
@@ -420,6 +430,8 @@ static int atmel_isc_probe(struct platform_device *pdev)
 	isc->config_rlp = isc_sama5d2_config_rlp;
 	isc->config_ctrls = isc_sama5d2_config_ctrls;
 
+	isc->adapt_pipeline = isc_sama5d2_adapt_pipeline;
+
 	isc->offsets.csc = ISC_SAMA5D2_CSC_OFFSET;
 	isc->offsets.cbc = ISC_SAMA5D2_CBC_OFFSET;
 	isc->offsets.sub422 = ISC_SAMA5D2_SUB422_OFFSET;
-- 
2.25.1