[1/2] usb: musb: Drop unneeded resource copying

Commit Message

Rob Herring (Arm) Dec. 15, 2021, 11:07 p.m. UTC

The platform device resources are copied by the driver core, so there is
no need for the caller to do it when creating a platform device. Just pass
the parent resources to the child device directly.

Signed-off-by: Rob Herring <[e-mail]>
---
 drivers/usb/musb/da8xx.c    | 18 ++----------------
 drivers/usb/musb/omap2430.c | 22 +---------------------
 drivers/usb/musb/ux500.c    | 17 +----------------
 3 files changed, 4 insertions(+), 53 deletions(-)

Patch

diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index 1c023c0091c4..e4e0195131da 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -505,7 +505,6 @@  static struct of_dev_auxdata da8xx_auxdata_lookup[] = {
 
 static int da8xx_probe(struct platform_device *pdev)
 {
-	struct resource musb_resources[2];
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct da8xx_glue		*glue;
 	struct platform_device_info	pinfo;
@@ -558,23 +557,10 @@  static int da8xx_probe(struct platform_device *pdev)
 	if (ret)
 		return ret;
 
-	memset(musb_resources, 0x00, sizeof(*musb_resources) *
-			ARRAY_SIZE(musb_resources));
-
-	musb_resources[0].name = pdev->resource[0].name;
-	musb_resources[0].start = pdev->resource[0].start;
-	musb_resources[0].end = pdev->resource[0].end;
-	musb_resources[0].flags = pdev->resource[0].flags;
-
-	musb_resources[1].name = pdev->resource[1].name;
-	musb_resources[1].start = pdev->resource[1].start;
-	musb_resources[1].end = pdev->resource[1].end;
-	musb_resources[1].flags = pdev->resource[1].flags;
-
 	pinfo = da8xx_dev_info;
 	pinfo.parent = &pdev->dev;
-	pinfo.res = musb_resources;
-	pinfo.num_res = ARRAY_SIZE(musb_resources);
+	pinfo.res = pdev->resource;
+	pinfo.num_res = pdev->num_resources;
 	pinfo.data = pdata;
 	pinfo.size_data = sizeof(*pdata);
 
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index f086960fe2b5..d2b7e613eb34 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -301,7 +301,6 @@  static u64 omap2430_dmamask = DMA_BIT_MASK(32);
 
 static int omap2430_probe(struct platform_device *pdev)
 {
-	struct resource			musb_resources[3];
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct omap_musb_board_data	*data;
 	struct platform_device		*musb;
@@ -383,26 +382,7 @@  static int omap2430_probe(struct platform_device *pdev)
 
 	INIT_WORK(&glue->omap_musb_mailbox_work, omap_musb_mailbox_work);
 
-	memset(musb_resources, 0x00, sizeof(*musb_resources) *
-			ARRAY_SIZE(musb_resources));
-
-	musb_resources[0].name = pdev->resource[0].name;
-	musb_resources[0].start = pdev->resource[0].start;
-	musb_resources[0].end = pdev->resource[0].end;
-	musb_resources[0].flags = pdev->resource[0].flags;
-
-	musb_resources[1].name = pdev->resource[1].name;
-	musb_resources[1].start = pdev->resource[1].start;
-	musb_resources[1].end = pdev->resource[1].end;
-	musb_resources[1].flags = pdev->resource[1].flags;
-
-	musb_resources[2].name = pdev->resource[2].name;
-	musb_resources[2].start = pdev->resource[2].start;
-	musb_resources[2].end = pdev->resource[2].end;
-	musb_resources[2].flags = pdev->resource[2].flags;
-
-	ret = platform_device_add_resources(musb, musb_resources,
-			ARRAY_SIZE(musb_resources));
+	ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
 		goto err2;
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index 73538d1d0524..9bce19b5ffd7 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -216,7 +216,6 @@  ux500_of_probe(struct platform_device *pdev, struct device_node *np)
 
 static int ux500_probe(struct platform_device *pdev)
 {
-	struct resource musb_resources[2];
 	struct musb_hdrc_platform_data	*pdata = dev_get_platdata(&pdev->dev);
 	struct device_node		*np = pdev->dev.of_node;
 	struct platform_device		*musb;
@@ -273,21 +272,7 @@  static int ux500_probe(struct platform_device *pdev)
 
 	platform_set_drvdata(pdev, glue);
 
-	memset(musb_resources, 0x00, sizeof(*musb_resources) *
-			ARRAY_SIZE(musb_resources));
-
-	musb_resources[0].name = pdev->resource[0].name;
-	musb_resources[0].start = pdev->resource[0].start;
-	musb_resources[0].end = pdev->resource[0].end;
-	musb_resources[0].flags = pdev->resource[0].flags;
-
-	musb_resources[1].name = pdev->resource[1].name;
-	musb_resources[1].start = pdev->resource[1].start;
-	musb_resources[1].end = pdev->resource[1].end;
-	musb_resources[1].flags = pdev->resource[1].flags;
-
-	ret = platform_device_add_resources(musb, musb_resources,
-			ARRAY_SIZE(musb_resources));
+	ret = platform_device_add_resources(musb, pdev->resource, pdev->num_resources);
 	if (ret) {
 		dev_err(&pdev->dev, "failed to add resources\n");
 		goto err2;