linux-kernel - [PATCH v2 2/2] drm/panthor: skip regulator setup if no such prop

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Message-Id: <20250928090334.35389-2-jiyu.yang@oss.nxp.com>
Date: Sun, 28 Sep 2025 17:03:34 +0800
From: Rain Yang <jiyu.yang@....nxp.com>
To: imx@...ts.linux.dev,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org
Cc: boris.brezillon@...labora.com,
	steven.price@....com,
	liviu.dudau@....com,
	maarten.lankhorst@...ux.intel.com,
	mripard@...nel.org,
	tzimmermann@...e.de,
	airlied@...il.co,
	simona@...ll.ch,
	marek.vasut@...lbox.org,
	robh@...nel.org,
	krzk+dt@...nel.org,
	conor+dt@...nel.org,
	Rain Yang <jiyu.yang@....com>
Subject: [PATCH v2 2/2] drm/panthor: skip regulator setup if no such prop

From: Rain Yang <jiyu.yang@....com>

The regulator is optional, skip the setup instead of returning an
error if it is not present

Signed-off-by: Rain Yang <jiyu.yang@....com>
---
 drivers/gpu/drm/panthor/panthor_devfreq.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panthor/panthor_devfreq.c b/drivers/gpu/drm/panthor/panthor_devfreq.c
index 3686515d368d..2df1d76d84a0 100644
--- a/drivers/gpu/drm/panthor/panthor_devfreq.c
+++ b/drivers/gpu/drm/panthor/panthor_devfreq.c
@@ -146,10 +146,9 @@ int panthor_devfreq_init(struct panthor_device *ptdev)
 	ptdev->devfreq = pdevfreq;
 
 	ret = devm_pm_opp_set_regulators(dev, reg_names);
-	if (ret) {
+	if (ret && ret != -ENODEV) {
 		if (ret != -EPROBE_DEFER)
 			DRM_DEV_ERROR(dev, "Couldn't set OPP regulators\n");
-
 		return ret;
 	}
 
-- 
2.39.5