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authorLuca Weiss <[email protected]>2023-02-12 15:11:08 +0100
committerBjorn Andersson <[email protected]>2023-03-13 16:38:24 -0700
commita7074c3eb26e0193f2c6ed79987e633b7578024e (patch)
tree3a613d6892bf84a73e0dc010cee745f777e1a2a7
parent092209f199b8fe3e7862aff2d6e45ffb388fc42a (diff)
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 <[email protected]> Tested-by: Christian Marangi <[email protected]> Signed-off-by: Bjorn Andersson <[email protected]> Link: https://lore.kernel.org/r/[email protected]
-rw-r--r--drivers/clk/qcom/clk-krait.c10
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,
};