linux-kernel - [PATCH] drm/tegra: Make use of the helper function devm_platform_ioremap

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Message-ID: <20210831135808.4876-1-caihuoqing@baidu.com>
Date:   Tue, 31 Aug 2021 21:58:07 +0800
From:   Cai Huoqing <caihuoqing@...du.com>
To:     <caihuoqing@...du.com>
CC:     Thierry Reding <thierry.reding@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Jonathan Hunter <jonathanh@...dia.com>,
        <dri-devel@...ts.freedesktop.org>, <linux-tegra@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH] drm/tegra: Make use of the helper function devm_platform_ioremap_resource()

Use the devm_platform_ioremap_resource() helper instead of
calling platform_get_resource() and devm_ioremap_resource()
separately

Signed-off-by: Cai Huoqing <caihuoqing@...du.com>
---
 drivers/gpu/drm/tegra/dpaux.c | 4 +---
 drivers/gpu/drm/tegra/dsi.c   | 4 +---
 drivers/gpu/drm/tegra/hdmi.c  | 4 +---
 drivers/gpu/drm/tegra/sor.c   | 4 +---
 drivers/gpu/drm/tegra/vic.c   | 9 +--------
 5 files changed, 5 insertions(+), 20 deletions(-)

diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c
index 1f96e416fa08..52750853625d 100644
--- a/drivers/gpu/drm/tegra/dpaux.c
+++ b/drivers/gpu/drm/tegra/dpaux.c
@@ -447,7 +447,6 @@ static const struct pinmux_ops tegra_dpaux_pinmux_ops = {
 static int tegra_dpaux_probe(struct platform_device *pdev)
 {
 	struct tegra_dpaux *dpaux;
-	struct resource *regs;
 	u32 value;
 	int err;
 
@@ -461,8 +460,7 @@ static int tegra_dpaux_probe(struct platform_device *pdev)
 	INIT_LIST_HEAD(&dpaux->list);
 	dpaux->dev = &pdev->dev;
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	dpaux->regs = devm_ioremap_resource(&pdev->dev, regs);
+	dpaux->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(dpaux->regs))
 		return PTR_ERR(dpaux->regs);
 
diff --git a/drivers/gpu/drm/tegra/dsi.c b/drivers/gpu/drm/tegra/dsi.c
index f46d377f0c30..4a49fe059911 100644
--- a/drivers/gpu/drm/tegra/dsi.c
+++ b/drivers/gpu/drm/tegra/dsi.c
@@ -1550,7 +1550,6 @@ static int tegra_dsi_ganged_probe(struct tegra_dsi *dsi)
 static int tegra_dsi_probe(struct platform_device *pdev)
 {
 	struct tegra_dsi *dsi;
-	struct resource *regs;
 	int err;
 
 	dsi = devm_kzalloc(&pdev->dev, sizeof(*dsi), GFP_KERNEL);
@@ -1616,8 +1615,7 @@ static int tegra_dsi_probe(struct platform_device *pdev)
 		return err;
 	}
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	dsi->regs = devm_ioremap_resource(&pdev->dev, regs);
+	dsi->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(dsi->regs))
 		return PTR_ERR(dsi->regs);
 
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c
index e5d2a4026028..24ab2f049710 100644
--- a/drivers/gpu/drm/tegra/hdmi.c
+++ b/drivers/gpu/drm/tegra/hdmi.c
@@ -1637,7 +1637,6 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
 {
 	const char *level = KERN_ERR;
 	struct tegra_hdmi *hdmi;
-	struct resource *regs;
 	int err;
 
 	hdmi = devm_kzalloc(&pdev->dev, sizeof(*hdmi), GFP_KERNEL);
@@ -1712,8 +1711,7 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
 	if (err < 0)
 		return err;
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	hdmi->regs = devm_ioremap_resource(&pdev->dev, regs);
+	hdmi->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(hdmi->regs))
 		return PTR_ERR(hdmi->regs);
 
diff --git a/drivers/gpu/drm/tegra/sor.c b/drivers/gpu/drm/tegra/sor.c
index 0ea320c1092b..0a0917547053 100644
--- a/drivers/gpu/drm/tegra/sor.c
+++ b/drivers/gpu/drm/tegra/sor.c
@@ -3718,7 +3718,6 @@ static int tegra_sor_probe(struct platform_device *pdev)
 {
 	struct device_node *np;
 	struct tegra_sor *sor;
-	struct resource *regs;
 	int err;
 
 	sor = devm_kzalloc(&pdev->dev, sizeof(*sor), GFP_KERNEL);
@@ -3791,8 +3790,7 @@ static int tegra_sor_probe(struct platform_device *pdev)
 		}
 	}
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	sor->regs = devm_ioremap_resource(&pdev->dev, regs);
+	sor->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(sor->regs)) {
 		err = PTR_ERR(sor->regs);
 		goto remove;
diff --git a/drivers/gpu/drm/tegra/vic.c b/drivers/gpu/drm/tegra/vic.c
index c02010ff2b7f..7b2eb7951b11 100644
--- a/drivers/gpu/drm/tegra/vic.c
+++ b/drivers/gpu/drm/tegra/vic.c
@@ -404,7 +404,6 @@ static int vic_probe(struct platform_device *pdev)
 {
 	struct device *dev = &pdev->dev;
 	struct host1x_syncpt **syncpts;
-	struct resource *regs;
 	struct vic *vic;
 	int err;
 
@@ -425,13 +424,7 @@ static int vic_probe(struct platform_device *pdev)
 	if (!syncpts)
 		return -ENOMEM;
 
-	regs = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!regs) {
-		dev_err(&pdev->dev, "failed to get registers\n");
-		return -ENXIO;
-	}
-
-	vic->regs = devm_ioremap_resource(dev, regs);
+	vic->regs = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(vic->regs))
 		return PTR_ERR(vic->regs);
 
-- 
2.25.1