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media: ov5640: Fix check for PLL1 exceeding max allowed rate

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[ Upstream commit 2e3df204f9af42a47823ee955c08950373417420 ]

The variable _rate is by ov5640_compute_sys_clk() which returns
zero if the PLL exceeds 1GHz.  Unfortunately, the check to see
if the max PLL1 output is checking 'rate' and not '_rate' and
'rate' does not ever appear to be 0.

This patch changes the check against the returned value of
'_rate' to determine if the PLL1 output exceeds 1GHz.

Fixes: aa2882481c ("media: ov5640: Adjust the clock based on the expected rate")
Signed-off-by: Adam Ford <aford173@gmail.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Adam Ford 2019-10-29 13:42:11 +01:00 • committed by Greg Kroah-Hartman
commit ecb8ea6f93
1 changed files with 1 additions and 1 deletions
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2
drivers/media/i2c/ov5640.c
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@ -874,7 +874,7 @@ static unsigned long ov5640_calc_sys_clk(struct ov5640_dev *sensor,
* We have reached the maximum allowed PLL1 output,
* increase sysdiv.
*/
if (!rate)
if (!_rate)
break;
/*