[PATCH 06/12] drm/sprd: move to devm_platform_ioremap_resource() usage

Anusha Srivatsa
2025-02-05T20:10:29Z

Replace platform_get_resource + devm_ioremap
with just devm_platform_ioremap_resource()

Used Coccinelle to do this change. SmPl patch:
@rule_2@
identifier res;
expression ioremap;
identifier pdev;
@@
-struct resource *res;
...
-res = platform_get_resource(pdev,...);
<...
-if (!res) {
-...
-}
...>
-ioremap = devm_ioremap(...);
+ioremap = devm_platform_ioremap_resource(pdev,0);

Cc: Chunyan Zhang <zhang.lyra@gmail.com>
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
drivers/gpu/drm/sprd/sprd_dpu.c | 9 +--------
drivers/gpu/drm/sprd/sprd_dsi.c | 9 +--------
2 files changed, 2 insertions(+), 16 deletions(-)

diff --git a/drivers/gpu/drm/sprd/sprd_dpu.c b/drivers/gpu/drm/sprd/sprd_dpu.c
index cb2816985305fd19eac27413c214681a5a1e9ffa..65cd5aa1634eee5a6735ccffa4ee3979844d92ce 100644
--- a/drivers/gpu/drm/sprd/sprd_dpu.c
+++ b/drivers/gpu/drm/sprd/sprd_dpu.c
@@ -784,16 +784,9 @@ static int sprd_dpu_context_init(struct sprd_dpu *dpu,
{
struct platform_device *pdev = to_platform_device(dev);
struct dpu_context *ctx = &dpu->ctx;
- struct resource *res;
int ret;

- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "failed to get I/O resource\n");
- return -EINVAL;
- }
-
- ctx->base = devm_ioremap(dev, res->start, resource_size(res));
+ ctx->base = devm_platform_ioremap_resource(pdev, 0);
if (!ctx->base) {
dev_err(dev, "failed to map dpu registers\n");
return -EFAULT;
diff --git a/drivers/gpu/drm/sprd/sprd_dsi.c b/drivers/gpu/drm/sprd/sprd_dsi.c
index 8fc26479bb6bce0aa94914f49d0986a7e19326c1..1668bb4166ab0ad3812c5654244544a9caf249a6 100644
--- a/drivers/gpu/drm/sprd/sprd_dsi.c
+++ b/drivers/gpu/drm/sprd/sprd_dsi.c
@@ -901,15 +901,8 @@ static int sprd_dsi_context_init(struct sprd_dsi *dsi,
{
struct platform_device *pdev = to_platform_device(dev);
struct dsi_context *ctx = &dsi->ctx;
- struct resource *res;

- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- dev_err(dev, "failed to get I/O resource\n");
- return -EINVAL;
- }
-
- ctx->base = devm_ioremap(dev, res->start, resource_size(res));
+ ctx->base = devm_platform_ioremap_resource(pdev, 0);
if (!ctx->base) {
drm_err(dsi->drm, "failed to map dsi host registers\n");
return -ENXIO;

--
2.47.0