linux-kernel - [PATCH v2] media: ti: Use devm_platform_ioremap_resource() in ti_csi2rx

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Date: Tue, 6 Feb 2024 15:37:30 +0100
From: Markus Elfring <Markus.Elfring@....de>
To: Jai Luthra <j-luthra@...com>, linux-media@...r.kernel.org,
 kernel-janitors@...r.kernel.org, Mauro Carvalho Chehab <mchehab@...nel.org>
Cc: LKML <linux-kernel@...r.kernel.org>
Subject: [PATCH v2] media: ti: Use devm_platform_ioremap_resource() in
 ti_csi2rx_probe()

From: Markus Elfring <elfring@...rs.sourceforge.net>
Date: Tue, 6 Feb 2024 15:30:13 +0100

A wrapper function is available since the commit 7945f929f1a77a1c8887a97ca07f87626858ff42
("drivers: provide devm_platform_ioremap_resource()").

* Thus reuse existing functionality instead of keeping duplicate source code.

* Delete a local variable which became unnecessary with this refactoring.


This issue was transformed by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@...rs.sourceforge.net>
---

v2:
The transformation pattern was adjusted based on advices by known contributors.

Examples:
* Doug Anderson
* Geert Uytterhoeven
* Robin Murphy


 drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
index 2b078c5d7f5d..54aba055c96b 100644
--- a/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
+++ b/drivers/media/platform/ti/j721e-csi2rx/j721e-csi2rx.c
@@ -1089,7 +1089,6 @@ static void ti_csi2rx_cleanup_vb2q(struct ti_csi2rx_dev *csi)
 static int ti_csi2rx_probe(struct platform_device *pdev)
 {
 	struct ti_csi2rx_dev *csi;
-	struct resource *res;
 	int ret;

 	csi = devm_kzalloc(&pdev->dev, sizeof(*csi), GFP_KERNEL);
@@ -1100,9 +1099,7 @@ static int ti_csi2rx_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, csi);

 	mutex_init(&csi->mutex);
-
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	csi->shim = devm_ioremap_resource(&pdev->dev, res);
+	csi->shim = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(csi->shim)) {
 		ret = PTR_ERR(csi->shim);
 		goto err_mutex;
--
2.43.0