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| author | Heiko Stuebner <heiko@sntech.de> | 2014-05-23 18:32:15 +0530 |
|---|---|---|
| committer | Mike Turquette <mturquette@linaro.org> | 2014-05-23 13:45:47 -0700 |
| commit | 79c6ab509558f9871175c7e4411f857de12cf33b (patch) | |
| tree | dd67f6534ab3be884ec541f710605af688e87c9a /include/linux/clk-provider.h | |
| parent | 1923ca92a618b6107d3a44b5c9f9360b104dcddb (diff) | |
| download | lwn-79c6ab509558f9871175c7e4411f857de12cf33b.tar.gz lwn-79c6ab509558f9871175c7e4411f857de12cf33b.zip | |
clk: divider: add CLK_DIVIDER_READ_ONLY flag
From: Heiko Stuebner <heiko@sntech.de>
Similar to muxes which already have a read-only flag there sometimes
exist dividers which should not be changed by the clock framework
but whose value still should be readable.
Therefore add a READ_ONLY flag similar to the mux-one to clk-divider
Signed-off-by: Heiko Stuebner <heiko@sntech.de>
[changed flag bit to BIT(5) as suggested by Tomasz Figa]
Signed-off-by: Thomas Abraham <thomas.ab@samsung.com>
Acked-by: Tomasz Figa <t.figa@samsung.com>
Acked-by: Max Schwarz <max.schwarz@online.de>
Tested-by: Max Schwarz <max.schwarz@online.de>
Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'include/linux/clk-provider.h')
| -rw-r--r-- | include/linux/clk-provider.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/linux/clk-provider.h b/include/linux/clk-provider.h index 40809431641e..c7135dbbcd65 100644 --- a/include/linux/clk-provider.h +++ b/include/linux/clk-provider.h @@ -320,6 +320,8 @@ struct clk_div_table { * 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. + * CLK_DIVIDER_READ_ONLY - The divider settings are preconfigured and should + * not be changed by the clock framework. */ struct clk_divider { struct clk_hw hw; @@ -336,8 +338,10 @@ struct clk_divider { #define CLK_DIVIDER_ALLOW_ZERO BIT(2) #define CLK_DIVIDER_HIWORD_MASK BIT(3) #define CLK_DIVIDER_ROUND_CLOSEST BIT(4) +#define CLK_DIVIDER_READ_ONLY BIT(5) extern const struct clk_ops clk_divider_ops; +extern const struct clk_ops clk_divider_ro_ops; struct clk *clk_register_divider(struct device *dev, const char *name, const char *parent_name, unsigned long flags, void __iomem *reg, u8 shift, u8 width, |