1 files changed, 26 insertions, 50 deletions

diff --git a/drivers/spi/spi-imx.c b/drivers/spi/spi-imx.c
index 7db4f43ee4d..15323d8bd9c 100644
--- a/drivers/spi/spi-imx.c
+++ b/drivers/spi/spi-imx.c
@@ -619,6 +619,7 @@ static const struct of_device_id spi_imx_dt_ids[] = {
 	{ .compatible = "fsl,imx51-ecspi", .data = &imx51_ecspi_devtype_data, },
 	{ /* sentinel */ }
 };
+MODULE_DEVICE_TABLE(of, spi_imx_dt_ids);
 
 static void spi_imx_chipselect(struct spi_device *spi, int is_active)
 {
@@ -796,10 +797,11 @@ static int spi_imx_probe(struct platform_device *pdev)
 		if (!gpio_is_valid(cs_gpio))
 			continue;
 
-		ret = gpio_request(spi_imx->chipselect[i], DRIVER_NAME);
+		ret = devm_gpio_request(&pdev->dev, spi_imx->chipselect[i],
+					DRIVER_NAME);
 		if (ret) {
 			dev_err(&pdev->dev, "can't get cs gpios\n");
-			goto out_gpio_free;
+			goto out_master_put;
 		}
 	}
 
@@ -816,50 +818,44 @@ static int spi_imx_probe(struct platform_device *pdev)
 		(struct spi_imx_devtype_data *) pdev->id_entry->driver_data;
 
 	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	if (!res) {
-		dev_err(&pdev->dev, "can't get platform resource\n");
-		ret = -ENOMEM;
-		goto out_gpio_free;
-	}
-
-	if (!request_mem_region(res->start, resource_size(res), pdev->name)) {
-		dev_err(&pdev->dev, "request_mem_region failed\n");
-		ret = -EBUSY;
-		goto out_gpio_free;
-	}
-
-	spi_imx->base = ioremap(res->start, resource_size(res));
-	if (!spi_imx->base) {
-		ret = -EINVAL;
-		goto out_release_mem;
+	spi_imx->base = devm_ioremap_resource(&pdev->dev, res);
+	if (IS_ERR(spi_imx->base)) {
+		ret = PTR_ERR(spi_imx->base);
+		goto out_master_put;
 	}
 
 	spi_imx->irq = platform_get_irq(pdev, 0);
 	if (spi_imx->irq < 0) {
 		ret = -EINVAL;
-		goto out_iounmap;
+		goto out_master_put;
 	}
 
-	ret = request_irq(spi_imx->irq, spi_imx_isr, 0, DRIVER_NAME, spi_imx);
+	ret = devm_request_irq(&pdev->dev, spi_imx->irq, spi_imx_isr, 0,
+			       DRIVER_NAME, spi_imx);
 	if (ret) {
 		dev_err(&pdev->dev, "can't get irq%d: %d\n", spi_imx->irq, ret);
-		goto out_iounmap;
+		goto out_master_put;
 	}
 
 	spi_imx->clk_ipg = devm_clk_get(&pdev->dev, "ipg");
 	if (IS_ERR(spi_imx->clk_ipg)) {
 		ret = PTR_ERR(spi_imx->clk_ipg);
-		goto out_free_irq;
+		goto out_master_put;
 	}
 
 	spi_imx->clk_per = devm_clk_get(&pdev->dev, "per");
 	if (IS_ERR(spi_imx->clk_per)) {
 		ret = PTR_ERR(spi_imx->clk_per);
-		goto out_free_irq;
+		goto out_master_put;
 	}
 
-	clk_prepare_enable(spi_imx->clk_per);
-	clk_prepare_enable(spi_imx->clk_ipg);
+	ret = clk_prepare_enable(spi_imx->clk_per);
+	if (ret)
+		goto out_master_put;
+
+	ret = clk_prepare_enable(spi_imx->clk_ipg);
+	if (ret)
+		goto out_put_per;
 
 	spi_imx->spi_clk = clk_get_rate(spi_imx->clk_per);
 
@@ -879,47 +875,27 @@ static int spi_imx_probe(struct platform_device *pdev)
 	return ret;
 
 out_clk_put:
-	clk_disable_unprepare(spi_imx->clk_per);
 	clk_disable_unprepare(spi_imx->clk_ipg);
-out_free_irq:
-	free_irq(spi_imx->irq, spi_imx);
-out_iounmap:
-	iounmap(spi_imx->base);
-out_release_mem:
-	release_mem_region(res->start, resource_size(res));
-out_gpio_free:
-	while (--i >= 0) {
-		if (gpio_is_valid(spi_imx->chipselect[i]))
-			gpio_free(spi_imx->chipselect[i]);
-	}
+out_put_per:
+	clk_disable_unprepare(spi_imx->clk_per);
+out_master_put:
 	spi_master_put(master);
-	kfree(master);
+
 	return ret;
 }
 
 static int spi_imx_remove(struct platform_device *pdev)
 {
 	struct spi_master *master = platform_get_drvdata(pdev);
-	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	struct spi_imx_data *spi_imx = spi_master_get_devdata(master);
-	int i;
 
 	spi_bitbang_stop(&spi_imx->bitbang);
 
 	writel(0, spi_imx->base + MXC_CSPICTRL);
-	clk_disable_unprepare(spi_imx->clk_per);
 	clk_disable_unprepare(spi_imx->clk_ipg);
-	free_irq(spi_imx->irq, spi_imx);
-	iounmap(spi_imx->base);
-
-	for (i = 0; i < master->num_chipselect; i++)
-		if (gpio_is_valid(spi_imx->chipselect[i]))
-			gpio_free(spi_imx->chipselect[i]);
-
+	clk_disable_unprepare(spi_imx->clk_per);
 	spi_master_put(master);
 
-	release_mem_region(res->start, resource_size(res));
-
 	return 0;
 }