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From:   Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Date:   Mon, 31 Jul 2023 16:24:39 +0300
Subject: [PATCH v3 5/9] media: i2c: ds90ub953: Handle
 V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK
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Message-Id: <20230731-fpdlink-additions-v3-5-8acfc49c215a@ideasonboard.com>
References: <20230731-fpdlink-additions-v3-0-8acfc49c215a@ideasonboard.com>
In-Reply-To: <20230731-fpdlink-additions-v3-0-8acfc49c215a@ideasonboard.com>
To:     Mauro Carvalho Chehab <mchehab@kernel.org>,
        Luca Ceresoli <luca.ceresoli@bootlin.com>,
        Andy Shevchenko <andriy.shevchenko@intel.com>,
        Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Sakari Ailus <sakari.ailus@linux.intel.com>,
        Hans Verkuil <hverkuil@xs4all.nl>,
        Satish Nagireddy <satish.nagireddy@getcruise.com>,
        Matti Vaittinen <mazziesaccount@gmail.com>
Cc:     linux-media@vger.kernel.org, linux-kernel@vger.kernel.org,
        Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>,
        Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Precedence: bulk

Handle V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK flag to configure the CSI-2 RX
continuous/non-continuous clock register.

Signed-off-by: Tomi Valkeinen <tomi.valkeinen@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
 drivers/media/i2c/ds90ub953.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/media/i2c/ds90ub953.c b/drivers/media/i2c/ds90ub953.c
index 1032c8633809..eedbca986928 100644
--- a/drivers/media/i2c/ds90ub953.c
+++ b/drivers/media/i2c/ds90ub953.c
@@ -138,6 +138,7 @@ struct ub953_data {
 	struct regmap		*regmap;
 
 	u32			num_data_lanes;
+	bool			non_continous_clk;
 
 	struct gpio_chip	gpio_chip;
 
@@ -1140,6 +1141,9 @@ static int ub953_parse_dt(struct ub953_data *priv)
 
 	priv->num_data_lanes = nlanes;
 
+	priv->non_continous_clk = vep.bus.mipi_csi2.flags &
+				  V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK;
+
 	return 0;
 }
 
@@ -1202,7 +1206,7 @@ static int ub953_hw_init(struct ub953_data *priv)
 		return dev_err_probe(dev, ret, "i2c init failed\n");
 
 	ub953_write(priv, UB953_REG_GENERAL_CFG,
-		    UB953_REG_GENERAL_CFG_CONT_CLK |
+		    (priv->non_continous_clk ? 0 : UB953_REG_GENERAL_CFG_CONT_CLK) |
 		    ((priv->num_data_lanes - 1) << UB953_REG_GENERAL_CFG_CSI_LANE_SEL_SHIFT) |
 		    UB953_REG_GENERAL_CFG_CRC_TX_GEN_ENABLE);
 

-- 
2.34.1