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media: ccs-pll: Check for too high VT PLL multiplier in dual PLL case

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commit 6868b955acd6e5d7405a2b730c2ffb692ad50d2c upstream.

The check for VT PLL upper limit in dual PLL case was missing. Add it now.

Fixes: 6c7469e46b ("media: ccs-pll: Add trivial dual PLL support")
Cc: stable@vger.kernel.org
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Sakari Ailus
2025-02-20 10:54:44 +02:00
committed by Greg Kroah-Hartman
parent 1e4b3f1667
commit 4425db511b
1 changed files with 5 additions and 0 deletions
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5
drivers/media/i2c/ccs-pll.c
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@@ -312,6 +312,11 @@ __ccs_pll_calculate_vt_tree(struct device *dev,
dev_dbg(dev, "more_mul2: %u\n", more_mul);
pll_fr->pll_multiplier = mul * more_mul;
if (pll_fr->pll_multiplier > lim_fr->max_pll_multiplier) {
dev_dbg(dev, "pll multiplier %u too high\n",
pll_fr->pll_multiplier);
return -EINVAL;
}
if (pll_fr->pll_multiplier * pll_fr->pll_ip_clk_freq_hz >
lim_fr->max_pll_op_clk_freq_hz)