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Wysocki" , Laurentiu Palcu , Lucas Stach , Maarten Lankhorst , Maxime Ripard , Thomas Zimmermann , David Airlie , Daniel Vetter , Shawn Guo , Sascha Hauer , Pengutronix Kernel Team , Fabio Estevam , NXP Linux Team , Mark Brown , Takashi Iwai , David Gow , =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, Philipp Stanner Subject: [PATCH 2/2] drm/dcss: request memory region Date: Fri, 5 Jan 2024 18:22:19 +0100 Message-ID: <20240105172218.42457-4-pstanner@redhat.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240105172218.42457-2-pstanner@redhat.com> References: <20240105172218.42457-2-pstanner@redhat.com> MIME-Version: 1.0 X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: redhat.com X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20240105_092321_077882_789A035D X-CRM114-Status: GOOD ( 14.39 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The driver's memory regions are currently just ioremap()ed, but not reserved through a request. That's not a bug, but having the request is a little more robust. Implement the region-request through the corresponding managed devres-function. Signed-off-by: Philipp Stanner --- drivers/gpu/drm/imx/dcss/dcss-dev.c | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/imx/dcss/dcss-dev.c b/drivers/gpu/drm/imx/dcss/dcss-dev.c index 4f3af0dfb344..efd3a998652d 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-dev.c +++ b/drivers/gpu/drm/imx/dcss/dcss-dev.c @@ -177,10 +177,10 @@ struct dcss_dev *dcss_dev_create(struct device *dev, bool hdmi_output) return ERR_PTR(-ENODEV); } - res = platform_get_resource(pdev, IORESOURCE_MEM, 0); - if (!res) { - dev_err(dev, "cannot get memory resource\n"); - return ERR_PTR(-EINVAL); + res = devm_platform_get_resource(pdev, IORESOURCE_MEM, 0, "dcss"); + if (IS_ERR(res)) { + dev_err(dev, "cannot get / request memory resource\n"); + return res; } dcss = kzalloc(sizeof(*dcss), GFP_KERNEL);