[PATCH 07/12] drm/sti: move to devm_platform_ioremap_resource() usage

Anusha Srivatsa
2025-02-14T00:20:54Z

Replace platform_get_resource/_byname + devm_ioremap
with just devm_platform_ioremap_resource()

Used Coccinelle to do this change. SmPl patch:

@rule@
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);

and
@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);

v2: Fix compilation error.

Cc: Raphael Gallais-Pou <raphael.gallais-pou@foss.st.com>
Cc: Alain Volmat <alain.volmat@foss.st.com>
Reviewed-by: Maxime Ripard <mripard@kernel.org>
Acked-by: Raphael Gallais-Pou <rgallaispou@gmail.com>
Signed-off-by: Anusha Srivatsa <asrivats@redhat.com>
---
drivers/gpu/drm/sti/sti_compositor.c | 10 +---------
drivers/gpu/drm/sti/sti_dvo.c | 10 +---------
drivers/gpu/drm/sti/sti_hda.c | 9 +--------
drivers/gpu/drm/sti/sti_hdmi.c | 11 +----------
drivers/gpu/drm/sti/sti_hqvdp.c | 10 +---------
drivers/gpu/drm/sti/sti_tvout.c | 10 +---------
drivers/gpu/drm/sti/sti_vtg.c | 10 +---------
7 files changed, 7 insertions(+), 63 deletions(-)

diff --git a/drivers/gpu/drm/sti/sti_compositor.c b/drivers/gpu/drm/sti/sti_compositor.c
index 063f82d23d80c4ba83624a0066a18416a2b37351..7aefce6706ba2cd7d97a33228c9b9812edecf06f 100644
--- a/drivers/gpu/drm/sti/sti_compositor.c
+++ b/drivers/gpu/drm/sti/sti_compositor.c
@@ -177,7 +177,6 @@ static int sti_compositor_probe(struct platform_device *pdev)
struct device_node *np = dev->of_node;
struct device_node *vtg_np;
struct sti_compositor *compo;
- struct resource *res;
unsigned int i;

compo = devm_kzalloc(dev, sizeof(*compo), GFP_KERNEL);
@@ -194,14 +193,7 @@ static int sti_compositor_probe(struct platform_device *pdev)

memcpy(&compo->data, of_match_node(compositor_of_match, np)->data,
sizeof(struct sti_compositor_data));
-
- /* Get Memory ressources */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (res == NULL) {
- DRM_ERROR("Get memory resource failed\n");
- return -ENXIO;
- }
- compo->regs = devm_ioremap(dev, res->start, resource_size(res));
+ compo->regs = devm_platform_ioremap_resource(pdev, 0);
if (compo->regs == NULL) {
DRM_ERROR("Register mapping failed\n");
return -ENXIO;
diff --git a/drivers/gpu/drm/sti/sti_dvo.c b/drivers/gpu/drm/sti/sti_dvo.c
index c6c2abaa1891cd3ea025805b50d275ec314512c3..660588f01f90950a9b2c180ab230188c19901f26 100644
--- a/drivers/gpu/drm/sti/sti_dvo.c
+++ b/drivers/gpu/drm/sti/sti_dvo.c
@@ -511,7 +511,6 @@ static int sti_dvo_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct sti_dvo *dvo;
- struct resource *res;
struct device_node *np = dev->of_node;

DRM_INFO("%s\n", __func__);
@@ -523,14 +522,7 @@ static int sti_dvo_probe(struct platform_device *pdev)
}

dvo->dev = pdev->dev;
-
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "dvo-reg");
- if (!res) {
- DRM_ERROR("Invalid dvo resource\n");
- return -ENOMEM;
- }
- dvo->regs = devm_ioremap(dev, res->start,
- resource_size(res));
+ dvo->regs = devm_platform_ioremap_resource_byname(pdev, "dvo-reg");
if (!dvo->regs)
return -ENOMEM;

diff --git a/drivers/gpu/drm/sti/sti_hda.c b/drivers/gpu/drm/sti/sti_hda.c
index b12863bea95559c4f874eb94cea8938609d435d4..0b5dbaf4d5305989846e25a1cab6f82d191aa9a5 100644
--- a/drivers/gpu/drm/sti/sti_hda.c
+++ b/drivers/gpu/drm/sti/sti_hda.c
@@ -750,14 +750,7 @@ static int sti_hda_probe(struct platform_device *pdev)
return -ENOMEM;

hda->dev = pdev->dev;
-
- /* Get resources */
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hda-reg");
- if (!res) {
- DRM_ERROR("Invalid hda resource\n");
- return -ENOMEM;
- }
- hda->regs = devm_ioremap(dev, res->start, resource_size(res));
+ hda->regs = devm_platform_ioremap_resource_byname(pdev, "hda-reg");
if (!hda->regs)
return -ENOMEM;

diff --git a/drivers/gpu/drm/sti/sti_hdmi.c b/drivers/gpu/drm/sti/sti_hdmi.c
index ca2fe17de4a5d1e0199e59a97e6c7601e139ed9e..666143c48b0d0f2c20cd26323ddbc8e69d966622 100644
--- a/drivers/gpu/drm/sti/sti_hdmi.c
+++ b/drivers/gpu/drm/sti/sti_hdmi.c
@@ -1380,7 +1380,6 @@ static int sti_hdmi_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct sti_hdmi *hdmi;
struct device_node *np = dev->of_node;
- struct resource *res;
struct device_node *ddc;
int ret;

@@ -1399,15 +1398,7 @@ static int sti_hdmi_probe(struct platform_device *pdev)
}

hdmi->dev = pdev->dev;
-
- /* Get resources */
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hdmi-reg");
- if (!res) {
- DRM_ERROR("Invalid hdmi resource\n");
- ret = -ENOMEM;
- goto release_adapter;
- }
- hdmi->regs = devm_ioremap(dev, res->start, resource_size(res));
+ hdmi->regs = devm_platform_ioremap_resource_byname(pdev, "hdmi-reg");
if (!hdmi->regs) {
ret = -ENOMEM;
goto release_adapter;
diff --git a/drivers/gpu/drm/sti/sti_hqvdp.c b/drivers/gpu/drm/sti/sti_hqvdp.c
index 0f658709c9d0d398c4eed65202443db9d0b41f8c..420395598d119a403d531211022e6005d6a2bd59 100644
--- a/drivers/gpu/drm/sti/sti_hqvdp.c
+++ b/drivers/gpu/drm/sti/sti_hqvdp.c
@@ -1356,7 +1356,6 @@ static int sti_hqvdp_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *vtg_np;
struct sti_hqvdp *hqvdp;
- struct resource *res;

DRM_DEBUG_DRIVER("\n");

@@ -1367,14 +1366,7 @@ static int sti_hqvdp_probe(struct platform_device *pdev)
}

hqvdp->dev = dev;
-
- /* Get Memory resources */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- DRM_ERROR("Get memory resource failed\n");
- return -ENXIO;
- }
- hqvdp->regs = devm_ioremap(dev, res->start, resource_size(res));
+ hqvdp->regs = devm_platform_ioremap_resource(pdev, 0);
if (!hqvdp->regs) {
DRM_ERROR("Register mapping failed\n");
return -ENXIO;
diff --git a/drivers/gpu/drm/sti/sti_tvout.c b/drivers/gpu/drm/sti/sti_tvout.c
index af6c06f448c4819def8cc0d0836e30f991529690..0bebe815f5e7567f84388af93723a6fa7d2cc7a2 100644
--- a/drivers/gpu/drm/sti/sti_tvout.c
+++ b/drivers/gpu/drm/sti/sti_tvout.c
@@ -838,7 +838,6 @@ static int sti_tvout_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct device_node *node = dev->of_node;
struct sti_tvout *tvout;
- struct resource *res;

DRM_INFO("%s\n", __func__);

@@ -850,14 +849,7 @@ static int sti_tvout_probe(struct platform_device *pdev)
return -ENOMEM;

tvout->dev = dev;
-
- /* get memory resources */
- res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "tvout-reg");
- if (!res) {
- DRM_ERROR("Invalid glue resource\n");
- return -ENOMEM;
- }
- tvout->regs = devm_ioremap(dev, res->start, resource_size(res));
+ tvout->regs = devm_platform_ioremap_resource_byname(pdev, "tvout-reg");
if (!tvout->regs)
return -ENOMEM;

diff --git a/drivers/gpu/drm/sti/sti_vtg.c b/drivers/gpu/drm/sti/sti_vtg.c
index 5ba469b711b5318e9e9e6d8df127fb8933d1fac1..b5353fe774d72fd629ecd3ef75a5d2817ca8617f 100644
--- a/drivers/gpu/drm/sti/sti_vtg.c
+++ b/drivers/gpu/drm/sti/sti_vtg.c
@@ -380,20 +380,12 @@ static int vtg_probe(struct platform_device *pdev)
{
struct device *dev = &pdev->dev;
struct sti_vtg *vtg;
- struct resource *res;
int ret;

vtg = devm_kzalloc(dev, sizeof(*vtg), GFP_KERNEL);
if (!vtg)
return -ENOMEM;
-
- /* Get Memory ressources */
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res) {
- DRM_ERROR("Get memory resource failed\n");
- return -ENOMEM;
- }
- vtg->regs = devm_ioremap(dev, res->start, resource_size(res));
+ vtg->regs = devm_platform_ioremap_resource(pdev, 0);
if (!vtg->regs) {
DRM_ERROR("failed to remap I/O memory\n");
return -ENOMEM;

--
2.47.0