diff mbox series

[v5,09/11] clk: sunxi-ng: div: Support finding closest rate

Message ID 20230806-pll-mipi_set_rate_parent-v5-9-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 
  Add initalization macros for divisor clocks with mux
(SUNXI_CCU_M_WITH_MUX) to support finding the closest rate. This clock
type requires the appropriate flags to be set in the .common structure
(for the mux part of the clock) and the .div part.

Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Frank Oltmanns <frank@oltmanns.dev>
---
 drivers/clk/sunxi-ng/ccu_div.h | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)

Comments

Jernej Škrabec Aug. 6, 2023, 1:42 p.m. UTC | #1 
Dne nedelja, 06. avgust 2023 ob 15:06:54 CEST je Frank Oltmanns napisal(a):
> Add initalization macros for divisor clocks with mux
> (SUNXI_CCU_M_WITH_MUX) to support finding the closest rate. This clock
> type requires the appropriate flags to be set in the .common structure
> (for the mux part of the clock) and the .div part.
> 
> Acked-by: Maxime Ripard <mripard@kernel.org>
> Signed-off-by: Frank Oltmanns <frank@oltmanns.dev>

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

Best regards,
Jernej

> ---
>  drivers/clk/sunxi-ng/ccu_div.h | 30 ++++++++++++++++++++++++++++++
>  1 file changed, 30 insertions(+)
> 
> diff --git a/drivers/clk/sunxi-ng/ccu_div.h b/drivers/clk/sunxi-ng/ccu_div.h
> index 948e2b0c0c3b..90d49ee8e0cc 100644
> --- a/drivers/clk/sunxi-ng/ccu_div.h
> +++ b/drivers/clk/sunxi-ng/ccu_div.h
> @@ -143,6 +143,26 @@ struct ccu_div {
>  		},					
		\
>  	}
> 
> +#define SUNXI_CCU_M_WITH_MUX_TABLE_GATE_CLOSEST(_struct, _name,		
\
> +						_parents, 
_table,	\
> +						_reg,		
	\
> +						_mshift, 
_mwidth,	\
> +						_muxshift, 
_muxwidth,	\
> +						_gate, 
_flags)		\
> +	struct ccu_div _struct = {					
\
> +		.enable	= _gate,				
	\
> +		.div	= _SUNXI_CCU_DIV_FLAGS(_mshift, _mwidth, 
CLK_DIVIDER_ROUND_CLOSEST),
> \ +		.mux	= _SUNXI_CCU_MUX_TABLE(_muxshift, _muxwidth, 
_table), \
> +		.common	= {					
	\
> +			.reg		= _reg,			
	\
> +			.hw.init	= CLK_HW_INIT_PARENTS(_name,	
\
> +							      
_parents, \
> +							      
&ccu_div_ops, \
> +							      
_flags),	\
> +			.features	= CCU_FEATURE_CLOSEST_RATE,	
\
> +		},						
	\
> +	}
> +
>  #define SUNXI_CCU_M_WITH_MUX_GATE(_struct, _name, _parents, _reg,	\
>  				  _mshift, _mwidth, _muxshift, 
_muxwidth, \
>  				  _gate, _flags)		
	\
> @@ -152,6 +172,16 @@ struct ccu_div {
>  					_muxshift, _muxwidth,	
	\
>  					_gate, _flags)
> 
> +#define SUNXI_CCU_M_WITH_MUX_GATE_CLOSEST(_struct, _name, _parents,	
\
> +					  _reg, _mshift, 
_mwidth,	\
> +					  _muxshift, _muxwidth,	
	\
> +					  _gate, _flags)	
	\
> +	SUNXI_CCU_M_WITH_MUX_TABLE_GATE_CLOSEST(_struct, _name,		
\
> +						_parents, 
NULL,		\
> +						_reg, 
_mshift, _mwidth,	\
> +						_muxshift, 
_muxwidth,	\
> +						_gate, 
_flags)
> +
>  #define SUNXI_CCU_M_WITH_MUX(_struct, _name, _parents, _reg,		
\
>  			     _mshift, _mwidth, _muxshift, _muxwidth,	
\
>  			     _flags)				
	\
diff mbox series

Patch

diff --git a/drivers/clk/sunxi-ng/ccu_div.h b/drivers/clk/sunxi-ng/ccu_div.h
index 948e2b0c0c3b..90d49ee8e0cc 100644
--- a/drivers/clk/sunxi-ng/ccu_div.h
+++ b/drivers/clk/sunxi-ng/ccu_div.h
@@ -143,6 +143,26 @@  struct ccu_div {
 		},							\
 	}
 
+#define SUNXI_CCU_M_WITH_MUX_TABLE_GATE_CLOSEST(_struct, _name,		\
+						_parents, _table,	\
+						_reg,			\
+						_mshift, _mwidth,	\
+						_muxshift, _muxwidth,	\
+						_gate, _flags)		\
+	struct ccu_div _struct = {					\
+		.enable	= _gate,					\
+		.div	= _SUNXI_CCU_DIV_FLAGS(_mshift, _mwidth, CLK_DIVIDER_ROUND_CLOSEST), \
+		.mux	= _SUNXI_CCU_MUX_TABLE(_muxshift, _muxwidth, _table), \
+		.common	= {						\
+			.reg		= _reg,				\
+			.hw.init	= CLK_HW_INIT_PARENTS(_name,	\
+							      _parents, \
+							      &ccu_div_ops, \
+							      _flags),	\
+			.features	= CCU_FEATURE_CLOSEST_RATE,	\
+		},							\
+	}
+
 #define SUNXI_CCU_M_WITH_MUX_GATE(_struct, _name, _parents, _reg,	\
 				  _mshift, _mwidth, _muxshift, _muxwidth, \
 				  _gate, _flags)			\
@@ -152,6 +172,16 @@  struct ccu_div {
 					_muxshift, _muxwidth,		\
 					_gate, _flags)
 
+#define SUNXI_CCU_M_WITH_MUX_GATE_CLOSEST(_struct, _name, _parents,	\
+					  _reg, _mshift, _mwidth,	\
+					  _muxshift, _muxwidth,		\
+					  _gate, _flags)		\
+	SUNXI_CCU_M_WITH_MUX_TABLE_GATE_CLOSEST(_struct, _name,		\
+						_parents, NULL,		\
+						_reg, _mshift, _mwidth,	\
+						_muxshift, _muxwidth,	\
+						_gate, _flags)
+
 #define SUNXI_CCU_M_WITH_MUX(_struct, _name, _parents, _reg,		\
 			     _mshift, _mwidth, _muxshift, _muxwidth,	\
 			     _flags)					\