Message ID | 20240108092042.16949-4-pstanner@redhat.com |
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State | New |
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[149.14.88.26]) by smtp.gmail.com with ESMTPSA id dm4-20020ad44e24000000b00680613267d5sm2732554qvb.115.2024.01.08.01.20.55 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 08 Jan 2024 01:20:57 -0800 (PST) From: Philipp Stanner <pstanner@redhat.com> To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>, "Rafael J. Wysocki" <rafael@kernel.org>, Laurentiu Palcu <laurentiu.palcu@oss.nxp.com>, Lucas Stach <l.stach@pengutronix.de>, Maarten Lankhorst <maarten.lankhorst@linux.intel.com>, Maxime Ripard <mripard@kernel.org>, Thomas Zimmermann <tzimmermann@suse.de>, David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, Shawn Guo <shawnguo@kernel.org>, Sascha Hauer <s.hauer@pengutronix.de>, Pengutronix Kernel Team <kernel@pengutronix.de>, Fabio Estevam <festevam@gmail.com>, NXP Linux Team <linux-imx@nxp.com>, Mark Brown <broonie@kernel.org>, Takashi Iwai <tiwai@suse.de>, David Gow <davidgow@google.com>, =?utf-8?q?Uwe_Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de> Cc: linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org, linux-arm-kernel@lists.infradead.org, Philipp Stanner <pstanner@redhat.com> Subject: [PATCH v2 2/2] drm/dcss: request memory region Date: Mon, 8 Jan 2024 10:20:43 +0100 Message-ID: <20240108092042.16949-4-pstanner@redhat.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20240108092042.16949-2-pstanner@redhat.com> References: <20240108092042.16949-2-pstanner@redhat.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: <linux-kernel.vger.kernel.org> List-Subscribe: <mailto:linux-kernel+subscribe@vger.kernel.org> List-Unsubscribe: <mailto:linux-kernel+unsubscribe@vger.kernel.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-getmail-retrieved-from-mailbox: INBOX X-GMAIL-THRID: 1787513530468072294 X-GMAIL-MSGID: 1787513530468072294 |
Series |
platform_device: add new devres function
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Commit Message
Philipp Stanner
Jan. 8, 2024, 9:20 a.m. UTC
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 <pstanner@redhat.com>
---
drivers/gpu/drm/imx/dcss/dcss-dev.c | 9 +++++----
1 file changed, 5 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..63dbb8d9c1b0 100644 --- a/drivers/gpu/drm/imx/dcss/dcss-dev.c +++ b/drivers/gpu/drm/imx/dcss/dcss-dev.c @@ -177,10 +177,11 @@ 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_and_request_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);