| Message ID | 20250226132319.2517656-3-sakari.ailus@linux.intel.com |
|---|---|
| State | New |
| Headers | show |
| Series | [1/7] media: ccs-pll: Start OP pre-PLL multiplier search from correct value | expand |
diff --git a/drivers/media/i2c/ccs-pll.c b/drivers/media/i2c/ccs-pll.c index 6f99cb8be02a..98ffbdf565f3 100644 --- a/drivers/media/i2c/ccs-pll.c +++ b/drivers/media/i2c/ccs-pll.c @@ -397,6 +397,8 @@ static int ccs_pll_calculate_vt_tree(struct device *dev, min_pre_pll_clk_div = max_t(u16, min_pre_pll_clk_div, pll->ext_clk_freq_hz / lim_fr->max_pll_ip_clk_freq_hz); + if (!(pll->flags & CCS_PLL_FLAG_EXT_IP_PLL_DIVIDER)) + min_pre_pll_clk_div = clk_div_even(min_pre_pll_clk_div); dev_dbg(dev, "vt min/max_pre_pll_clk_div: %u,%u\n", min_pre_pll_clk_div, max_pre_pll_clk_div);
The ccs_pll_calculate_vt_tree() function does a search over possible VT PLL configurations to find the "best" one. If the sensor did not support odd pre-PLL divisors and the minimum value (with constraints) wasn't 1, other even values could have errorneously searched (and selected) for the pre-PLL divisor. Fix this. Fixes: 415ddd993978 ("media: ccs-pll: Split limits and PLL configuration into front and back parts") Cc: stable@vger.kernel.org Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com> --- drivers/media/i2c/ccs-pll.c | 2 ++ 1 file changed, 2 insertions(+)