From 774b514390b1eb8476bc759262790762bd1ef45a Mon Sep 17 00:00:00 2001 From: Maxime COQUELIN Date: Wed, 29 Jan 2014 17:24:07 +0100 Subject: clk: divider: Add round to closest divider In some cases, we want to be able to round the divider to the closest one, instead than rounding up. This patch adds a new CLK_DIVIDER_ROUND_CLOSEST flag to specify the divider has to round to closest div, keeping rounding up as de default behaviour. Signed-off-by: Maxime Coquelin Signed-off-by: Mike Turquette --- include/linux/clk-provider.h | 3 +++ 1 file changed, 3 insertions(+) (limited to 'include/linux/clk-provider.h') diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 511917416fb0..59e2eb58f555 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -312,6 +312,8 @@ struct clk_div_table { * of this register, and mask of divider bits are in higher 16-bit of this * register. While setting the divider bits, higher 16-bit should also be * updated to indicate changing divider bits. + * CLK_DIVIDER_ROUND_CLOSEST - Makes the best calculated divider to be rounded + * to the closest integer instead of the up one. */ struct clk_divider { struct clk_hw hw; @@ -327,6 +329,7 @@ struct clk_divider { #define CLK_DIVIDER_POWER_OF_TWO BIT(1) #define CLK_DIVIDER_ALLOW_ZERO BIT(2) #define CLK_DIVIDER_HIWORD_MASK BIT(3) +#define CLK_DIVIDER_ROUND_CLOSEST BIT(4) extern const struct clk_ops clk_divider_ops; struct clk *clk_register_divider(struct device *dev, const char *name, -- cgit v1.2.3