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);

Cc: Alain Volmat <alain.vol...@foss.st.com>
Signed-off-by: Anusha Srivatsa <asriv...@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        | 10 +---------
 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(+), 64 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..28fde4c568d0069ecf2f2f69f5be0e87c1d5f4f3
 100644
--- a/drivers/gpu/drm/sti/sti_hda.c
+++ b/drivers/gpu/drm/sti/sti_hda.c
@@ -741,7 +741,6 @@ static int sti_hda_probe(struct platform_device *pdev)
 {
        struct device *dev = &pdev->dev;
        struct sti_hda *hda;
-       struct resource *res;
 
        DRM_INFO("%s\n", __func__);
 
@@ -750,14 +749,7 @@ 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

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