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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 23:23:42 +0100 |
| commit | 1c8e600440c7f5036bd9a94526d01e9c7cb68dca (patch) | |
| tree | 36c9811e976332bc23a00a6fb216dce5e6b55a5a /drivers/clk/qcom/clk-rcg2.c | |
| parent | clk: remove clk-private.h (diff) | |
| download | linux-1c8e600440c7f5036bd9a94526d01e9c7cb68dca.tar.xz linux-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/qcom/clk-rcg2.c')
| -rw-r--r-- | drivers/clk/qcom/clk-rcg2.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/clk/qcom/clk-rcg2.c b/drivers/clk/qcom/clk-rcg2.c index 08b8b3729f53..742acfa18d63 100644 --- a/drivers/clk/qcom/clk-rcg2.c +++ b/drivers/clk/qcom/clk-rcg2.c @@ -208,6 +208,7 @@ static long _freq_tbl_determine_rate(struct clk_hw *hw, } static long clk_rcg2_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long min_rate, unsigned long max_rate, unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); @@ -361,6 +362,8 @@ static int clk_edp_pixel_set_rate_and_parent(struct clk_hw *hw, } static long clk_edp_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long min_rate, + unsigned long max_rate, unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); @@ -412,6 +415,7 @@ const struct clk_ops clk_edp_pixel_ops = { EXPORT_SYMBOL_GPL(clk_edp_pixel_ops); static long clk_byte_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long min_rate, unsigned long max_rate, unsigned long *p_rate, struct clk_hw **p_hw) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); @@ -476,6 +480,8 @@ static const struct frac_entry frac_table_pixel[] = { }; static long clk_pixel_determine_rate(struct clk_hw *hw, unsigned long rate, + unsigned long min_rate, + unsigned long max_rate, unsigned long *p_rate, struct clk_hw **p) { struct clk_rcg2 *rcg = to_clk_rcg2(hw); |