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Commit 6f367993 authored by Sakari Ailus's avatar Sakari Ailus Committed by Mauro Carvalho Chehab
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[media] smiapp: Round minimum pre_pll up rather than down in ip_clk_freq check 



The pre_pll divisor must be such that ext_clk / pre_pll divisor does not
result in a frequency that is greater than pll_ip_clk_freq. Fix this.

Signed-off-by: default avatarSakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 98add8e8

drivers/media/video/smiapp-pll.c

+3 −2
Original line number Diff line number Diff line
@@ -124,8 +124,9 @@ int smiapp_pll_calculate(struct device *dev, struct smiapp_pll_limits *limits, 
				   limits->min_pll_ip_freq_hz));

	limits->min_pre_pll_clk_div =

		max_t(uint16_t, limits->min_pre_pll_clk_div,

		      clk_div_even(pll->ext_clk_freq_hz /

				   limits->max_pll_ip_freq_hz));

		      clk_div_even_up(

			      DIV_ROUND_UP(pll->ext_clk_freq_hz,

					   limits->max_pll_ip_freq_hz)));

	dev_dbg(dev, "pre-pll check: min / max pre_pll_clk_div: %d / %d\n",

		limits->min_pre_pll_clk_div, limits->max_pre_pll_clk_div);