linux-kernel - [PATCH] drm/msm/dp: include linux/io.h

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Message-Id: <20250620124747.1928114-1-arnd@kernel.org>
Date: Fri, 20 Jun 2025 14:47:43 +0200
From: Arnd Bergmann <arnd@...nel.org>
To: Rob Clark <robin.clark@....qualcomm.com>,
	Dmitry Baryshkov <lumag@...nel.org>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Stephen Boyd <swboyd@...omium.org>
Cc: Arnd Bergmann <arnd@...db.de>,
	Abhinav Kumar <abhinav.kumar@...ux.dev>,
	Jessica Zhang <jessica.zhang@....qualcomm.com>,
	Sean Paul <sean@...rly.run>,
	Marijn Suijten <marijn.suijten@...ainline.org>,
	Abel Vesa <abel.vesa@...aro.org>,
	Jani Nikula <jani.nikula@...el.com>,
	Aleksandrs Vinarskis <alex.vinarskis@...il.com>,
	linux-arm-msm@...r.kernel.org,
	dri-devel@...ts.freedesktop.org,
	freedreno@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org
Subject: [PATCH] drm/msm/dp: include linux/io.h

From: Arnd Bergmann <arnd@...db.de>

The driver started using readl/writel, which are defined in linux/io.h,
so this needs to be included here:

drivers/gpu/drm/msm/dp/dp_panel.c:33:9: error: call to undeclared function 'readl_relaxed'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
   33 |         return readl_relaxed(panel->link_base + offset);

Fixes: 9d47325ee063 ("drm/msm/dp: drop the msm_dp_catalog module")
Signed-off-by: Arnd Bergmann <arnd@...db.de>
---
 drivers/gpu/drm/msm/dp/dp_panel.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c
index 489e39f6c0ac..ecd5d3665541 100644
--- a/drivers/gpu/drm/msm/dp/dp_panel.c
+++ b/drivers/gpu/drm/msm/dp/dp_panel.c
@@ -2,6 +2,7 @@
 /*
  * Copyright (c) 2012-2020, The Linux Foundation. All rights reserved.
  */
+#include <linux/io.h>
 
 #include "dp_panel.h"
 #include "dp_reg.h"
-- 
2.39.5