diff options
| author | Luca Weiss <luca@z3ntu.xyz> | 2023-02-12 17:11:08 +0300 |
|---|---|---|
| committer | Bjorn Andersson <andersson@kernel.org> | 2023-03-14 02:38:24 +0300 |
| commit | a7074c3eb26e0193f2c6ed79987e633b7578024e (patch) | |
| tree | 3a613d6892bf84a73e0dc010cee745f777e1a2a7 /drivers/clk/qcom/clk-krait.c | |
| parent | 092209f199b8fe3e7862aff2d6e45ffb388fc42a (diff) | |
| download | linux-a7074c3eb26e0193f2c6ed79987e633b7578024e.tar.xz | |
clk: qcom: clk-krait: switch to .determine_rate
.determine_rate is meant to replace .round_rate. The former comes with a
benefit which is especially relevant on 32-bit systems: since
.determine_rate uses an "unsigned long" (compared to a "signed long"
which is used by .round_rate) the maximum value on 32-bit systems
increases from 2^31 (or approx. 2.14GHz) to 2^32 (or approx. 4.29GHz).
Signed-off-by: Luca Weiss <luca@z3ntu.xyz>
Tested-by: Christian Marangi <ansuelsmth@gmail.com>
Signed-off-by: Bjorn Andersson <andersson@kernel.org>
Link: https://lore.kernel.org/r/20230212-clk-qcom-determine_rate-v1-1-b4e447d4926e@z3ntu.xyz
Diffstat (limited to 'drivers/clk/qcom/clk-krait.c')
| -rw-r--r-- | drivers/clk/qcom/clk-krait.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/clk/qcom/clk-krait.c b/drivers/clk/qcom/clk-krait.c index 293a9dfa7151..f5ce403e1e27 100644 --- a/drivers/clk/qcom/clk-krait.c +++ b/drivers/clk/qcom/clk-krait.c @@ -97,11 +97,11 @@ const struct clk_ops krait_mux_clk_ops = { EXPORT_SYMBOL_GPL(krait_mux_clk_ops); /* The divider can divide by 2, 4, 6 and 8. But we only really need div-2. */ -static long krait_div2_round_rate(struct clk_hw *hw, unsigned long rate, - unsigned long *parent_rate) +static int krait_div2_determine_rate(struct clk_hw *hw, struct clk_rate_request *req) { - *parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), rate * 2); - return DIV_ROUND_UP(*parent_rate, 2); + req->best_parent_rate = clk_hw_round_rate(clk_hw_get_parent(hw), req->rate * 2); + req->rate = DIV_ROUND_UP(req->best_parent_rate, 2); + return 0; } static int krait_div2_set_rate(struct clk_hw *hw, unsigned long rate, @@ -142,7 +142,7 @@ krait_div2_recalc_rate(struct clk_hw *hw, unsigned long parent_rate) } const struct clk_ops krait_div2_clk_ops = { - .round_rate = krait_div2_round_rate, + .determine_rate = krait_div2_determine_rate, .set_rate = krait_div2_set_rate, .recalc_rate = krait_div2_recalc_rate, }; |