From: Johan Hovold Date: Mon, 2 Dec 2024 10:06:21 +0000 (+0100) Subject: Revert "clk: Fix invalid execution of clk_set_rate" X-Git-Tag: v6.13-rc3~40^2~3 X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=06fec99d4d2cb92bc6f107fdfd5e5c776375c68a;p=thirdparty%2Flinux.git Revert "clk: Fix invalid execution of clk_set_rate" This reverts commit 25f1c96a0e841013647d788d4598e364e5c2ebb7. The offending commit results in errors like cpu cpu0: _opp_config_clk_single: failed to set clock rate: -22 spamming the logs on the Lenovo ThinkPad X13s and other Qualcomm machines when cpufreq tries to update the CPUFreq HW Engine clocks. As mentioned in commit 4370232c727b ("cpufreq: qcom-hw: Add CPU clock provider support"): [T]he frequency supplied by the driver is the actual frequency that comes out of the EPSS/OSM block after the DCVS operation. This frequency is not same as what the CPUFreq framework has set but it is the one that gets supplied to the CPUs after throttling by LMh. which seems to suggest that the driver relies on the previous behaviour of clk_set_rate(). Since this affects many Qualcomm machines, let's revert for now. Fixes: 25f1c96a0e84 ("clk: Fix invalid execution of clk_set_rate") Reported-by: Aishwarya TCV Link: https://lore.kernel.org/all/e2d83e57-ad07-411b-99f6-a4fc3c4534fa@arm.com/ Cc: Chuan Liu Cc: Manivannan Sadhasivam Signed-off-by: Johan Hovold Link: https://lore.kernel.org/r/20241202100621.29209-1-johan+linaro@kernel.org Signed-off-by: Stephen Boyd --- diff --git a/drivers/clk/clk.c b/drivers/clk/clk.c index bdc6e5b90da58..9b45fa005030f 100644 --- a/drivers/clk/clk.c +++ b/drivers/clk/clk.c @@ -2530,7 +2530,7 @@ static int clk_core_set_rate_nolock(struct clk_core *core, rate = clk_core_req_round_rate_nolock(core, req_rate); /* bail early if nothing to do */ - if (rate == clk_core_get_rate_recalc(core)) + if (rate == clk_core_get_rate_nolock(core)) return 0; /* fail on a direct rate set of a protected provider */