[PATCH v1 5/7] drm/stm: ltdc: add devm_reset_control & platform_get_ressource

From: Philippe CORNU <philippe.cornu@st.com>
To: Yannick Fertre <yannick.fertre@st.com>,
	Philippe Cornu <philippe.cornu@st.com>,
	Benjamin Gaignard <benjamin.gaignard@linaro.org>,
	Vincent Abriou <vincent.abriou@st.com>,
	David Airlie <airlied@linux.ie>,
	<dri-devel@lists.freedesktop.org>, <linux-kernel@vger.kernel.org>
Cc: Fabien Dessenne <fabien.dessenne@st.com>,
	Mickael Reulier <mickael.reulier@st.com>,
	Gabriel Fernandez <gabriel.fernandez@st.com>,
	Ludovic Barre <ludovic.barre@st.com>,
	Alexandre Torgue <alexandre.torgue@st.com>,
	Maxime Coquelin <mcoquelin.stm32@gmail.com>
Subject: [PATCH v1 5/7] drm/stm: ltdc: add devm_reset_control & platform_get_ressource
Date: Tue, 18 Jul 2017 12:20:17 +0200	[thread overview]
Message-ID: <1500373219-20233-6-git-send-email-philippe.cornu@st.com> (raw)
In-Reply-To: <1500373219-20233-1-git-send-email-philippe.cornu@st.com>

Use devm_reset_control_get to avoid resource leakage.
Also use platform_get_resource, which is more usual and
consistent with platform_get_irq called later.

Signed-off-by: Fabien Dessenne <fabien.dessenne@st.com>
Signed-off-by: Philippe CORNU <philippe.cornu@st.com>
---
 drivers/gpu/drm/stm/ltdc.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/stm/ltdc.c b/drivers/gpu/drm/stm/ltdc.c
index 92e58ba..f4ed21a 100644
--- a/drivers/gpu/drm/stm/ltdc.c
+++ b/drivers/gpu/drm/stm/ltdc.c
@@ -874,7 +874,7 @@ int ltdc_load(struct drm_device *ddev)
 	struct drm_panel *panel;
 	struct drm_crtc *crtc;
 	struct reset_control *rstc;
-	struct resource res;
+	struct resource *res;
 	int irq, ret, i;
 
 	DRM_DEBUG_DRIVER("\n");
@@ -883,7 +883,7 @@ int ltdc_load(struct drm_device *ddev)
 	if (ret)
 		return ret;
 
-	rstc = of_reset_control_get(np, NULL);
+	rstc = devm_reset_control_get(dev, NULL);
 
 	mutex_init(&ldev->err_lock);
 
@@ -898,13 +898,14 @@ int ltdc_load(struct drm_device *ddev)
 		return -ENODEV;
 	}
 
-	if (of_address_to_resource(np, 0, &res)) {
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
 		DRM_ERROR("Unable to get resource\n");
 		ret = -ENODEV;
 		goto err;
 	}
 
-	ldev->regs = devm_ioremap_resource(dev, &res);
+	ldev->regs = devm_ioremap_resource(dev, res);
 	if (IS_ERR(ldev->regs)) {
 		DRM_ERROR("Unable to get ltdc registers\n");
 		ret = PTR_ERR(ldev->regs);
-- 
1.9.1
