linux-kernel - [PATCH 3/7] spi: ep93xx: Use devm_platform_get_and_ioremap

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Date:   Thu,  6 Jul 2023 11:27:22 +0800
From:   Yangtao Li <frank.li@...o.com>
To:     Mark Brown <broonie@...nel.org>
Cc:     Yangtao Li <frank.li@...o.com>, linux-spi@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: [PATCH 3/7] spi: ep93xx: 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/spi/spi-ep93xx.c | 13 +++----------
 1 file changed, 3 insertions(+), 10 deletions(-)

diff --git a/drivers/spi/spi-ep93xx.c b/drivers/spi/spi-ep93xx.c
index 1615fd22f9a2..3693b3d425c7 100644
--- a/drivers/spi/spi-ep93xx.c
+++ b/drivers/spi/spi-ep93xx.c
@@ -661,13 +661,7 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
 
 	irq = platform_get_irq(pdev, 0);
 	if (irq < 0)
-		return -EBUSY;
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "unable to get iomem resource\n");
-		return -ENODEV;
-	}
+		return irq;
 
 	master = spi_alloc_master(&pdev->dev, sizeof(*espi));
 	if (!master)
@@ -705,13 +699,12 @@ static int ep93xx_spi_probe(struct platform_device *pdev)
 	master->max_speed_hz = clk_get_rate(espi->clk) / 2;
 	master->min_speed_hz = clk_get_rate(espi->clk) / (254 * 256);
 
-	espi->sspdr_phys = res->start + SSPDR;
-
-	espi->mmio = devm_ioremap_resource(&pdev->dev, res);
+	espi->mmio = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(espi->mmio)) {
 		error = PTR_ERR(espi->mmio);
 		goto fail_release_master;
 	}
+	espi->sspdr_phys = res->start + SSPDR;
 
 	error = devm_request_irq(&pdev->dev, irq, ep93xx_spi_interrupt,
 				0, "ep93xx-spi", master);
-- 
2.39.0