linux-kernel - [PATCH v4 03/15] media: i2c: ds90ub960: Fix use of non-existing registers on UB9702

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Message-Id: <20241206-ub9xx-fixes-v4-3-466786eec7cc@ideasonboard.com>
Date: Fri, 06 Dec 2024 10:26:39 +0200
From: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To: Mauro Carvalho Chehab <mchehab@...nel.org>, 
 Sakari Ailus <sakari.ailus@...ux.intel.com>, 
 Hans Verkuil <hverkuil-cisco@...all.nl>, 
 Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
 Jai Luthra <jai.luthra@...asonboard.com>
Cc: linux-media@...r.kernel.org, linux-kernel@...r.kernel.org, 
 Tomi Valkeinen <tomi.valkeinen@...asonboard.com>, stable@...r.kernel.org
Subject: [PATCH v4 03/15] media: i2c: ds90ub960: Fix use of non-existing
 registers on UB9702

UB9702 doesn't have the registers for SP and EQ. Adjust the code in
ub960_rxport_wait_locks() to not use those registers for UB9702. As
these values are only used for a debug print here, there's no functional
change.

Cc: stable@...r.kernel.org
Fixes: afe267f2d368 ("media: i2c: add DS90UB960 driver")
Reviewed-by: Jai Luthra <jai.luthra@...asonboard.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
---
 drivers/media/i2c/ds90ub960.c | 24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/media/i2c/ds90ub960.c b/drivers/media/i2c/ds90ub960.c
index b1e848678218..24198b803eff 100644
--- a/drivers/media/i2c/ds90ub960.c
+++ b/drivers/media/i2c/ds90ub960.c
@@ -1577,16 +1577,24 @@ static int ub960_rxport_wait_locks(struct ub960_data *priv,
 
 		ub960_rxport_read16(priv, nport, UB960_RR_RX_FREQ_HIGH, &v);
 
-		ret = ub960_rxport_get_strobe_pos(priv, nport, &strobe_pos);
-		if (ret)
-			return ret;
+		if (priv->hw_data->is_ub9702) {
+			dev_dbg(dev, "\trx%u: locked, freq %llu Hz\n",
+				nport, (v * 1000000ULL) >> 8);
+		} else {
+			ret = ub960_rxport_get_strobe_pos(priv, nport,
+							  &strobe_pos);
+			if (ret)
+				return ret;
 
-		ret = ub960_rxport_get_eq_level(priv, nport, &eq_level);
-		if (ret)
-			return ret;
+			ret = ub960_rxport_get_eq_level(priv, nport, &eq_level);
+			if (ret)
+				return ret;
 
-		dev_dbg(dev, "\trx%u: locked, SP: %d, EQ: %u, freq %llu Hz\n",
-			nport, strobe_pos, eq_level, (v * 1000000ULL) >> 8);
+			dev_dbg(dev,
+				"\trx%u: locked, SP: %d, EQ: %u, freq %llu Hz\n",
+				nport, strobe_pos, eq_level,
+				(v * 1000000ULL) >> 8);
+		}
 	}
 
 	return 0;

-- 
2.43.0