linux-kernel - [PATCH 3/9] drivers: ata: ahci_tegra: use devm_platform_ioremap

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Date:   Tue, 12 Mar 2019 10:19:28 +0100
From:   "Enrico Weigelt, metux IT consult" <info@...ux.net>
To:     linux-kernel@...r.kernel.org
Cc:     axboe@...nel.dk, hdegoede@...hat.com, b.zolnierkie@...sung.com,
        linus.walleij@...aro.org, linux-ide@...r.kernel.org,
        linux-tegra@...r.kernel.org
Subject: [PATCH 3/9] drivers: ata: ahci_tegra: use devm_platform_ioremap_resource()

Use the new helper that wraps the calls to platform_get_resource()
and devm_ioremap_resource() together.

Signed-off-by: Enrico Weigelt, metux IT consult <info@...ux.net>
---
 drivers/ata/ahci_tegra.c | 13 +++++--------
 1 file changed, 5 insertions(+), 8 deletions(-)

diff --git a/drivers/ata/ahci_tegra.c b/drivers/ata/ahci_tegra.c
index 004f260..88748ca 100644
--- a/drivers/ata/ahci_tegra.c
+++ b/drivers/ata/ahci_tegra.c
@@ -490,7 +490,6 @@ static int tegra_ahci_probe(struct platform_device *pdev)
 {
 	struct ahci_host_priv *hpriv;
 	struct tegra_ahci_priv *tegra;
-	struct resource *res;
 	int ret;
 	unsigned int i;
 
@@ -507,19 +506,17 @@ static int tegra_ahci_probe(struct platform_device *pdev)
 	tegra->pdev = pdev;
 	tegra->soc = of_device_get_match_data(&pdev->dev);
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 1);
-	tegra->sata_regs = devm_ioremap_resource(&pdev->dev, res);
+	tegra->sata_regs = devm_platform_ioremap_resource(pdev, 1);
 	if (IS_ERR(tegra->sata_regs))
 		return PTR_ERR(tegra->sata_regs);
 
 	/*
 	 * AUX registers is optional.
 	 */
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 2);
-	if (res) {
-		tegra->sata_aux_regs = devm_ioremap_resource(&pdev->dev, res);
-		if (IS_ERR(tegra->sata_aux_regs))
-			return PTR_ERR(tegra->sata_aux_regs);
+	tegra->sata_aux_regs = devm_platform_ioremap_resource(pdev, 2);
+	if (IS_ERR(tegra->sata_aux_regs)) {
+		dev_info(&pdev->dev, "Cant get aux registers (optional)");
+		tegra->sata_aux_regs = NULL;
 	}
 
 	tegra->sata_rst = devm_reset_control_get(&pdev->dev, "sata");
-- 
1.9.1