linux-kernel - [PATCH v2] i3c: master: svc: Fix pm_runtime_set

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Message-ID: <20240930091913.2545510-1-ruanjinjie@huawei.com>
Date: Mon, 30 Sep 2024 17:19:13 +0800
From: Jinjie Ruan <ruanjinjie@...wei.com>
To: <miquel.raynal@...tlin.com>, <conor.culhane@...vaco.com>,
	<alexandre.belloni@...tlin.com>, <xiaoning.wang@....com>, <jun.li@....com>,
	<linux-i3c@...ts.infradead.org>, <linux-kernel@...r.kernel.org>
CC: <ruanjinjie@...wei.com>
Subject: [PATCH v2] i3c: master: svc: Fix pm_runtime_set_suspended() with runtime pm enabled

It is not valid to call pm_runtime_set_suspended() for devices
with runtime PM enabled because it returns -EAGAIN if it is enabled
already and working. So, call pm_runtime_disable() before to fix it.

Cc: stable@...r.kernel.org # v5.17
Fixes: 05be23ef78f7 ("i3c: master: svc: add runtime pm support")
Reviewed-by: Frank Li <Frank.Li@....com>
Reviewed-by: Miquel Raynal <miquel.raynal@...tlin.com>
Signed-off-by: Jinjie Ruan <ruanjinjie@...wei.com>
---
v2:
- Add Reviewed-by.
- Add stable tag as Miquel suggested.
---
 drivers/i3c/master/svc-i3c-master.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c
index a7bfc678153e..130cec4ee307 100644
--- a/drivers/i3c/master/svc-i3c-master.c
+++ b/drivers/i3c/master/svc-i3c-master.c
@@ -1827,8 +1827,8 @@ static int svc_i3c_master_probe(struct platform_device *pdev)
 rpm_disable:
 	pm_runtime_dont_use_autosuspend(&pdev->dev);
 	pm_runtime_put_noidle(&pdev->dev);
-	pm_runtime_set_suspended(&pdev->dev);
 	pm_runtime_disable(&pdev->dev);
+	pm_runtime_set_suspended(&pdev->dev);
 
 err_disable_clks:
 	svc_i3c_master_unprepare_clks(master);
-- 
2.34.1