linux-kernel - [PATCH 28/30] usb: ehci-st: Use devm_platform_get_and_ioremap

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Message-Id: <20230726113816.888-28-frank.li@vivo.com>
Date:   Wed, 26 Jul 2023 19:38:14 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     Alan Stern <stern@...land.harvard.edu>,
        Patrice Chotard <patrice.chotard@...s.st.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Yangtao Li <frank.li@...o.com>, linux-usb@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: [PATCH 28/30] usb: ehci-st: Use devm_platform_get_and_ioremap_resource()

Convert platform_get_resource(), devm_ioremap_resource() to a single
call to devm_platform_get_and_ioremap_resource(), as this is exactly
what this function does.

Signed-off-by: Yangtao Li <frank.li@...o.com>
---
 drivers/usb/host/ehci-st.c | 12 +++---------
 1 file changed, 3 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/host/ehci-st.c b/drivers/usb/host/ehci-st.c
index ee0976b815b4..2dbb0d86daaa 100644
--- a/drivers/usb/host/ehci-st.c
+++ b/drivers/usb/host/ehci-st.c
@@ -158,11 +158,6 @@ static int st_ehci_platform_probe(struct platform_device *dev)
 	irq = platform_get_irq(dev, 0);
 	if (irq < 0)
 		return irq;
-	res_mem = platform_get_resource(dev, IORESOURCE_MEM, 0);
-	if (!res_mem) {
-		dev_err(&dev->dev, "no memory resource provided");
-		return -ENXIO;
-	}
 
 	hcd = usb_create_hcd(&ehci_platform_hc_driver, &dev->dev,
 			     dev_name(&dev->dev));
@@ -222,14 +217,13 @@ static int st_ehci_platform_probe(struct platform_device *dev)
 			goto err_put_clks;
 	}
 
-	hcd->rsrc_start = res_mem->start;
-	hcd->rsrc_len = resource_size(res_mem);
-
-	hcd->regs = devm_ioremap_resource(&dev->dev, res_mem);
+	hcd->regs = devm_platform_get_and_ioremap_resource(dev, 0, &res_mem);
 	if (IS_ERR(hcd->regs)) {
 		err = PTR_ERR(hcd->regs);
 		goto err_put_clks;
 	}
+	hcd->rsrc_start = res_mem->start;
+	hcd->rsrc_len = resource_size(res_mem);
 
 	err = usb_add_hcd(hcd, irq, IRQF_SHARED);
 	if (err)
-- 
2.39.0