soc: qcom: rpmhpd: Use corner in power_off

rpmhpd_aggregate_corner() takes a corner as parameter, but in
rpmhpd_power_off() the code requests the level of the first corner
instead.

In all (known) current cases the first corner has level 0, so this
change should be a nop, but in case that there's a power domain with a
non-zero lowest level this makes sure that rpmhpd_power_off() actually
requests the lowest level - which is the closest to "power off" we can
get.

While touching the code, also skip the unnecessary zero-initialization
of "ret".

Fixes: 279b7e8a62cc ("soc: qcom: rpmhpd: Add RPMh power domain driver")
Reviewed-by: Rajendra Nayak <rnayak@codeaurora.org>
Reviewed-by: Stephen Boyd <swboyd@chromium.org>
Reviewed-by: Sibi Sankar <sibis@codeaurora.org>
Tested-by: Sibi Sankar <sibis@codeaurora.org>
Link: https://lore.kernel.org/r/20210703005416.2668319-2-bjorn.andersson@linaro.org
Signed-off-by: Bjorn Andersson <bjorn.andersson@linaro.org>

diff --git a/drivers/soc/qcom/rpmhpd.c b/drivers/soc/qcom/rpmhpd.c
index 2daa17ba54a3f8e44b61d93b1c0bf0e1df0f7c48..fa209b479ab352239260becbd4b3b26d8d821342 100644 (file)
--- a/drivers/soc/qcom/rpmhpd.c
+++ b/drivers/soc/qcom/rpmhpd.c
@@ -403,12 +403,11 @@ static int rpmhpd_power_on(struct generic_pm_domain *domain)
 static int rpmhpd_power_off(struct generic_pm_domain *domain)
 {
        struct rpmhpd *pd = domain_to_rpmhpd(domain);
-       int ret = 0;
+       int ret;
 
        mutex_lock(&rpmhpd_lock);
 
-       ret = rpmhpd_aggregate_corner(pd, pd->level[0]);
-
+       ret = rpmhpd_aggregate_corner(pd, 0);
        if (!ret)
                pd->enabled = false;