diff mbox series

[v5,04/11] clk: sunxi-ng: Add feature to find closest rate

Message ID 20230806-pll-mipi_set_rate_parent-v5-4-db4f5ca33fc3@oltmanns.dev
State New
Headers
Series clk: sunxi-ng: Consider alternative parent rates when determining NKM clock rate |

Commit Message

Frank Oltmanns Aug. 6, 2023, 1:06 p.m. UTC 
  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>
Signed-off-by: Frank Oltmanns <frank@oltmanns.dev>
---
 drivers/clk/sunxi-ng/ccu_common.h | 1 +
 1 file changed, 1 insertion(+)

Comments

Jernej Škrabec Aug. 6, 2023, 1:33 p.m. UTC | #1 
Dne nedelja, 06. avgust 2023 ob 15:06:49 CEST je Frank Oltmanns napisal(a):
> 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>
> Signed-off-by: Frank Oltmanns <frank@oltmanns.dev>

Acked-by: Jernej Skrabec <jernej.skrabec@gmail.com>

Best regards,
Jernej

> ---
>  drivers/clk/sunxi-ng/ccu_common.h | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/clk/sunxi-ng/ccu_common.h
> b/drivers/clk/sunxi-ng/ccu_common.h index fbf16c6b896d..5ad219f041d5 100644
> --- a/drivers/clk/sunxi-ng/ccu_common.h
> +++ b/drivers/clk/sunxi-ng/ccu_common.h
> @@ -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)
diff mbox series

Patch

diff --git a/drivers/clk/sunxi-ng/ccu_common.h b/drivers/clk/sunxi-ng/ccu_common.h
index fbf16c6b896d..5ad219f041d5 100644
--- a/drivers/clk/sunxi-ng/ccu_common.h
+++ b/drivers/clk/sunxi-ng/ccu_common.h
@@ -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)