linux-kernel - [PATCH 2/2] media: i2c: ds90ub960: Fix PLL config for 1200 MHz CSI rate

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Message-Id: <20230803-ub9xx-uninit-vars-v1-2-284a5455260f@ideasonboard.com>
Date:   Thu, 03 Aug 2023 11:41:39 +0300
From:   Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
To:     Mauro Carvalho Chehab <mchehab@...nel.org>,
        Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Sakari Ailus <sakari.ailus@...ux.intel.com>,
        Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        Hans Verkuil <hverkuil@...all.nl>
Cc:     linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
        Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
Subject: [PATCH 2/2] media: i2c: ds90ub960: Fix PLL config for 1200 MHz CSI
 rate

smatch reports:

drivers/media/i2c/ds90ub960.c:1788 ub960_init_tx_ports() error: uninitialized symbol 'pll_div'.

This is caused by 'pll_div' not being set for 1200 MHz CSI rate. Set the
'pll_div' correctly.

Fixes: afe267f2d368 ("media: i2c: add DS90UB960 driver")
Reported-by: Hans Verkuil <hverkuil@...all.nl>
Closes: https://lore.kernel.org/all/8d6daeb1-b62a-bbb2-b840-8759c84f2085@xs4all.nl/
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>
---
 drivers/media/i2c/ds90ub960.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/media/i2c/ds90ub960.c b/drivers/media/i2c/ds90ub960.c
index 4833b39b9178..4ab45e326d80 100644
--- a/drivers/media/i2c/ds90ub960.c
+++ b/drivers/media/i2c/ds90ub960.c
@@ -1763,6 +1763,7 @@ static int ub960_init_tx_ports(struct ub960_data *priv)
 		break;
 	case MHZ(1200):
 		speed_select = 1;
+		pll_div = 0x18;
 		break;
 	case MHZ(800):
 		speed_select = 2;

-- 
2.34.1