From: Chanwoo Choi <cw00.choi@samsung.com>
To: andrew-sh.cheng@mediatek.com, hsinyi@chromium.org
Cc: sibis@codeaurora.org, saravanak@google.com,
myungjoo.ham@samsung.com, kyungmin.park@samsung.com,
cw00.choi@samsung.com, chanwoo@kernel.org, cwchoi00@gmail.com,
linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
stable@vger.kernel.org
Subject: [PATCH 1/4] PM / devfreq: passive: Fix get_target_freq when not using required-opp
Date: Thu, 17 Jun 2021 15:05:43 +0900 [thread overview]
Message-ID: <20210617060546.26933-2-cw00.choi@samsung.com> (raw)
In-Reply-To: <20210617060546.26933-1-cw00.choi@samsung.com>
The 86ad9a24f21e ("PM / devfreq: Add required OPPs support to passive governor")
supported the required-opp property for using devfreq passive governor.
But, 86ad9a24f21e has caused the problem on use-case when required-opp
is not used such as exynos-bus.c devfreq driver. So that fix the
get_target_freq of passive governor for supporting the case of when
required-opp is not used.
Cc: stable@vger.kernel.org
Fixes: 86ad9a24f21e ("PM / devfreq: Add required OPPs support to passive governor")
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
---
drivers/devfreq/governor_passive.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/devfreq/governor_passive.c b/drivers/devfreq/governor_passive.c
index b094132bd20b..fc09324a03e0 100644
--- a/drivers/devfreq/governor_passive.c
+++ b/drivers/devfreq/governor_passive.c
@@ -65,7 +65,7 @@ static int devfreq_passive_get_target_freq(struct devfreq *devfreq,
dev_pm_opp_put(p_opp);
if (IS_ERR(opp))
- return PTR_ERR(opp);
+ goto no_required_opp;
*freq = dev_pm_opp_get_freq(opp);
dev_pm_opp_put(opp);
@@ -73,6 +73,7 @@ static int devfreq_passive_get_target_freq(struct devfreq *devfreq,
return 0;
}
+no_required_opp:
/*
* Get the OPP table's index of decided frequency by governor
* of parent device.
--
2.17.1
next prev parent reply other threads:[~2021-06-17 5:47 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <CGME20210617054647epcas1p3f1ef3ddef736496151ff77df4f50749a@epcas1p3.samsung.com>
2021-06-17 6:05 ` [PATCH 0/4] PM / devfreq: Add cpu based scaling support to passive governor Chanwoo Choi
[not found] ` <CGME20210617054647epcas1p4d2e5b1fa1ec35487701189808178da18@epcas1p4.samsung.com>
2021-06-17 6:05 ` Chanwoo Choi [this message]
2021-06-24 1:38 ` [PATCH 1/4] PM / devfreq: passive: Fix get_target_freq when not using required-opp Chanwoo Choi
[not found] ` <CGME20210617054647epcas1p265359058d489661e09d8d48d4937ca7b@epcas1p2.samsung.com>
2021-06-17 6:05 ` [PATCH 2/4] PM / devfreq: Export devfreq_get_freq_ragne symbol within devfreq Chanwoo Choi
2021-06-22 18:23 ` Matthias Kaehlcke
2021-07-13 19:36 ` Chanwoo Choi
[not found] ` <CGME20210617054647epcas1p431edaffea5bf7f3792b55dc3d91289ae@epcas1p4.samsung.com>
2021-06-17 6:05 ` [PATCH 3/4] PM / devfreq: Add cpu based scaling support to passive governor Chanwoo Choi
2021-06-17 5:51 ` Hsin-Yi Wang
2021-06-17 6:13 ` Chanwoo Choi
2021-06-22 17:42 ` Matthias Kaehlcke
2021-06-22 18:36 ` Matthias Kaehlcke
[not found] ` <CGME20210617054647epcas1p41cd87f03bc6f5b44b6f2d7a3e5924860@epcas1p4.samsung.com>
2021-06-17 6:05 ` [PATCH 4/4] PM / devfreq: passive: Reduce duplicate code when passive_devfreq case Chanwoo Choi
2021-06-22 18:35 ` Matthias Kaehlcke
2021-07-13 19:31 ` Chanwoo Choi
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