From: Maulik Shah <mkshah@codeaurora.org>
To: bjorn.andersson@linaro.org, agross@kernel.org
Cc: linux-arm-msm@vger.kernel.org, linux-kernel@vger.kernel.org,
dianders@chromium.org, swboyd@chromium.org,
rnayak@codeaurora.org, ilina@codeaurora.org,
lsrao@codeaurora.org, Maulik Shah <mkshah@codeaurora.org>
Subject: [PATCH] soc: qcom: rpmh-rsc: Set suppress_bind_attrs flag
Date: Mon, 22 Jun 2020 12:23:25 +0530 [thread overview]
Message-ID: <1592808805-2437-1-git-send-email-mkshah@codeaurora.org> (raw)
rpmh-rsc driver is fairly core to system and should not be removable
once its probed. However it allows to unbind driver from sysfs using
below command which results into a crash on sc7180.
echo 18200000.rsc > /sys/bus/platform/drivers/rpmh/unbind
Lets prevent unbind at runtime by setting suppress_bind_attrs flag.
Signed-off-by: Maulik Shah <mkshah@codeaurora.org>
---
drivers/soc/qcom/rpmh-rsc.c | 1 +
1 file changed, 1 insertion(+)
diff --git a/drivers/soc/qcom/rpmh-rsc.c b/drivers/soc/qcom/rpmh-rsc.c
index 076fd27..752a561 100644
--- a/drivers/soc/qcom/rpmh-rsc.c
+++ b/drivers/soc/qcom/rpmh-rsc.c
@@ -1023,6 +1023,7 @@ static struct platform_driver rpmh_driver = {
.driver = {
.name = "rpmh",
.of_match_table = rpmh_drv_match,
+ .suppress_bind_attrs = true,
},
};
--
QUALCOMM INDIA, on behalf of Qualcomm Innovation Center, Inc. is a member
of Code Aurora Forum, hosted by The Linux Foundation
next reply other threads:[~2020-06-22 6:53 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-06-22 6:53 Maulik Shah [this message]
2020-06-22 9:03 ` [PATCH] soc: qcom: rpmh-rsc: Set suppress_bind_attrs flag Stephen Boyd
2020-06-22 11:39 ` Maulik Shah
2020-06-22 19:29 ` Bjorn Andersson
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=1592808805-2437-1-git-send-email-mkshah@codeaurora.org \
--to=mkshah@codeaurora.org \
--cc=agross@kernel.org \
--cc=bjorn.andersson@linaro.org \
--cc=dianders@chromium.org \
--cc=ilina@codeaurora.org \
--cc=linux-arm-msm@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=lsrao@codeaurora.org \
--cc=rnayak@codeaurora.org \
--cc=swboyd@chromium.org \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox