[PATCH 11/12] drm/vc4: move to devm_platform_ioremap_resource() usage

[Anusha Srivatsa]

Replace platform_get_resource_byname + devm_ioremap_resource
with just devm_platform_ioremap_resource()

Used Coccinelle to do this change. SmPl patch:
//rule s/(devm_)platform_get_resource_byname +
//(devm_)ioremap/devm_platform_ioremap_resource.
@rule_3@
identifier res;
expression ioremap;
identifier pdev;
constant mem;
expression name;
@@
-struct resource *res;
<+...
-res = platform_get_resource_byname(pdev,mem,name);
<...
-if (!res) {
-...
-}
...>
-ioremap = devm_ioremap(...);
+ioremap = devm_platform_ioremap_resource_byname(pdev,name);
...+>

v2: Change the SmPl patch to work on multiple occurences of
the pattern. This also fixes the compilation error.

Cc: Maxime Ripard <mripard@xxxxxxxxxx>
Cc: Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx>
Cc: Maíra Canal <mcanal@xxxxxxxxxx>
Signed-off-by: Anusha Srivatsa <asrivats@xxxxxxxxxx>
---
 drivers/gpu/drm/vc4/vc4_hdmi.c | 55 +++++++++++-------------------------------
 1 file changed, 14 insertions(+), 41 deletions(-)

diff --git a/drivers/gpu/drm/vc4/vc4_hdmi.c b/drivers/gpu/drm/vc4/vc4_hdmi.c
index 47d9ada98430634cfd8c1e21c2a4d00d501bab7e..066f1246dab420ee889845b0c573d80ce7c88595 100644
--- a/drivers/gpu/drm/vc4/vc4_hdmi.c
+++ b/drivers/gpu/drm/vc4/vc4_hdmi.c
@@ -2951,71 +2951,44 @@ static int vc5_hdmi_init_resources(struct drm_device *drm,
 {
 	struct platform_device *pdev = vc4_hdmi->pdev;
 	struct device *dev = &pdev->dev;
-	struct resource *res;
 	int ret;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi");
-	if (!res)
-		return -ENODEV;
-
-	vc4_hdmi->hdmicore_regs = devm_ioremap(dev, res->start,
-					       resource_size(res));
+	vc4_hdmi->hdmicore_regs = devm_platform_ioremap_resource_byname(pdev,
+									"hdmi");
 	if (!vc4_hdmi->hdmicore_regs)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hd");
-	if (!res)
-		return -ENODEV;
-
-	vc4_hdmi->hd_regs = devm_ioremap(dev, res->start, resource_size(res));
+	vc4_hdmi->hd_regs = devm_platform_ioremap_resource_byname(pdev, "hd");
 	if (!vc4_hdmi->hd_regs)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "cec");
-	if (!res)
-		return -ENODEV;
-
-	vc4_hdmi->cec_regs = devm_ioremap(dev, res->start, resource_size(res));
+	vc4_hdmi->cec_regs = devm_platform_ioremap_resource_byname(pdev,
+								   "cec");
 	if (!vc4_hdmi->cec_regs)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "csc");
-	if (!res)
-		return -ENODEV;
-
-	vc4_hdmi->csc_regs = devm_ioremap(dev, res->start, resource_size(res));
+	vc4_hdmi->csc_regs = devm_platform_ioremap_resource_byname(pdev,
+								   "csc");
 	if (!vc4_hdmi->csc_regs)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dvp");
-	if (!res)
-		return -ENODEV;
-
-	vc4_hdmi->dvp_regs = devm_ioremap(dev, res->start, resource_size(res));
+	vc4_hdmi->dvp_regs = devm_platform_ioremap_resource_byname(pdev,
+								   "dvp");
 	if (!vc4_hdmi->dvp_regs)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "phy");
-	if (!res)
-		return -ENODEV;
+	vc4_hdmi->phy_regs = devm_platform_ioremap_resource_byname(pdev,
+								   "phy");
 
-	vc4_hdmi->phy_regs = devm_ioremap(dev, res->start, resource_size(res));
 	if (!vc4_hdmi->phy_regs)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "packet");
-	if (!res)
-		return -ENODEV;
-
-	vc4_hdmi->ram_regs = devm_ioremap(dev, res->start, resource_size(res));
+	vc4_hdmi->ram_regs = devm_platform_ioremap_resource_byname(pdev,
+								   "packet");
 	if (!vc4_hdmi->ram_regs)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "rm");
-	if (!res)
-		return -ENODEV;
-
-	vc4_hdmi->rm_regs = devm_ioremap(dev, res->start, resource_size(res));
+	vc4_hdmi->rm_regs = devm_platform_ioremap_resource_byname(pdev, "rm");
 	if (!vc4_hdmi->rm_regs)
 		return -ENOMEM;
 

-- 
2.47.0