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| author | Tomeu Vizoso <tomeu.vizoso@collabora.com> | 2015-01-23 12:03:31 +0100 |
|---|---|---|
| committer | Michael Turquette <mturquette@linaro.org> | 2015-02-02 14:23:42 -0800 |
| commit | 1c8e600440c7f5036bd9a94526d01e9c7cb68dca (patch) | |
| tree | 36c9811e976332bc23a00a6fb216dce5e6b55a5a /drivers/clk/sunxi | |
| parent | b09d6d99102504a929cfaba4cd0e07658d7f01d1 (diff) | |
| download | linux-stable-1c8e600440c7f5036bd9a94526d01e9c7cb68dca.tar.gz linux-stable-1c8e600440c7f5036bd9a94526d01e9c7cb68dca.tar.bz2 linux-stable-1c8e600440c7f5036bd9a94526d01e9c7cb68dca.zip | |
clk: Add rate constraints to clocks
Adds a way for clock consumers to set maximum and minimum rates. This
can be used for thermal drivers to set minimum rates, or by misc.
drivers to set maximum rates to assure a minimum performance level.
Changes the signature of the determine_rate callback by adding the
parameters min_rate and max_rate.
Signed-off-by: Tomeu Vizoso <tomeu.vizoso@collabora.com>
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
[sboyd@codeaurora.org: set req_rate in __clk_init]
Signed-off-by: Michael Turquette <mturquette@linaro.org>
[mturquette@linaro.org: min/max rate for sun6i_ahb1_clk_determine_rate
migrated clk-private.h changes to clk.c]
Diffstat (limited to 'drivers/clk/sunxi')
| -rw-r--r-- | drivers/clk/sunxi/clk-factors.c | 2 | ||||
| -rw-r--r-- | drivers/clk/sunxi/clk-sun6i-ar100.c | 2 | ||||
| -rw-r--r-- | drivers/clk/sunxi/clk-sunxi.c | 2 |
3 files changed, 6 insertions, 0 deletions
diff --git a/drivers/clk/sunxi/clk-factors.c b/drivers/clk/sunxi/clk-factors.c index a9ebbd207d58..8c20190a3e9f 100644 --- a/drivers/clk/sunxi/clk-factors.c +++ b/drivers/clk/sunxi/clk-factors.c @@ -80,6 +80,8 @@ static long clk_factors_round_rate(struct clk_hw *hw, unsigned long rate, } static long clk_factors_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long min_rate, + unsigned long max_rate, unsigned long *best_parent_rate, struct clk_hw **best_parent_p) { diff --git a/drivers/clk/sunxi/clk-sun6i-ar100.c b/drivers/clk/sunxi/clk-sun6i-ar100.c index 3d282fb8f85c..63cf149195ae 100644 --- a/drivers/clk/sunxi/clk-sun6i-ar100.c +++ b/drivers/clk/sunxi/clk-sun6i-ar100.c @@ -45,6 +45,8 @@ static unsigned long ar100_recalc_rate(struct clk_hw *hw, } static long ar100_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long min_rate, + unsigned long max_rate, unsigned long *best_parent_rate, struct clk_hw **best_parent_clk) { diff --git a/drivers/clk/sunxi/clk-sunxi.c b/drivers/clk/sunxi/clk-sunxi.c index 9b79f8907cc5..69937eaba795 100644 --- a/drivers/clk/sunxi/clk-sunxi.c +++ b/drivers/clk/sunxi/clk-sunxi.c @@ -119,6 +119,8 @@ static long sun6i_ahb1_clk_round(unsigned long rate, u8 *divp, u8 *pre_divp, } static long sun6i_ahb1_clk_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long min_rate, + unsigned long max_rate, unsigned long *best_parent_rate, struct clk_hw **best_parent_clk) { |