linux-kernel - [PATCH v14 15/18] media: i2c: ds90ub953: Handle V4L2_MBUS_CSI2_NONCONTINUOUS

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Message-Id: <20230616135922.442979-16-tomi.valkeinen@ideasonboard.com>
Date:   Fri, 16 Jun 2023 16:59:19 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To:     linux-media@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-i2c@...r.kernel.org,
        Luca Ceresoli <luca.ceresoli@...tlin.com>,
        Andy Shevchenko <andriy.shevchenko@...el.com>,
        Matti Vaittinen <Matti.Vaittinen@...rohmeurope.com>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc:     Wolfram Sang <wsa@...nel.org>, Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Mauro Carvalho Chehab <mchehab@...nel.org>,
        Peter Rosin <peda@...ntia.se>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Michael Tretter <m.tretter@...gutronix.de>,
        Hans Verkuil <hverkuil@...all.nl>,
        Mike Pagano <mpagano@...too.org>,
        Krzysztof Hałasa <khalasa@...p.pl>,
        Marek Vasut <marex@...x.de>,
        Satish Nagireddy <satish.nagireddy@...cruise.com>,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Subject: [PATCH v14 15/18] media: i2c: ds90ub953: Handle V4L2_MBUS_CSI2_NONCONTINUOUS_CLOCK

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@...asonboard.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 5b586855c77b..f2e950a00d64 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_cont_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_cont_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_cont_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