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clk: sunxi-ng: Add feature to find closest rate

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The default behaviour of clocks in the sunxi-ng driver is to select a
clock rate that is closest to but less than the requested rate.

Add the CCU_FEATURE_CLOSEST_RATE flag, which can be used to allow clocks
to find the closest rate instead.

Acked-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>
Signed-off-by: Frank Oltmanns <frank@oltmanns.dev>
Link: https://lore.kernel.org/r/20230807-pll-mipi_set_rate_parent-v6-4-f173239a4b59@oltmanns.dev
Signed-off-by: Chen-Yu Tsai <wens@csie.org>
This commit is contained in:
Frank Oltmanns 2023-08-07 14:43:37 +02:00 committed by Chen-Yu Tsai
parent b271fc467a
commit 48fb70cdd9
1 changed files with 1 additions and 0 deletions
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drivers/clk/sunxi-ng/ccu_common.h
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@ -18,6 +18,7 @@
#define CCU_FEATURE_MMC_TIMING_SWITCH BIT(6)
#define CCU_FEATURE_SIGMA_DELTA_MOD BIT(7)
#define CCU_FEATURE_KEY_FIELD BIT(8)
#define CCU_FEATURE_CLOSEST_RATE BIT(9)
/* MMC timing mode switch bit */
#define CCU_MMC_NEW_TIMING_MODE BIT(30)