[PATCH] dmaengine: bestcomm: Use of_address_to_resource()

From: Rob Herring
Date: Sun Mar 19 2023 - 12:32:58 EST


Replace of_get_address() and of_translate_address() calls with single
call to of_address_to_resource().

Signed-off-by: Rob Herring <robh@xxxxxxxxxx>
---
drivers/dma/bestcomm/sram.c | 19 ++++++++-----------
1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/drivers/dma/bestcomm/sram.c b/drivers/dma/bestcomm/sram.c
index c465758e7193..103174cbda65 100644
--- a/drivers/dma/bestcomm/sram.c
+++ b/drivers/dma/bestcomm/sram.c
@@ -38,7 +38,7 @@ int bcom_sram_init(struct device_node *sram_node, char *owner)
{
int rv;
const u32 *regaddr_p;
- u64 regaddr64, size64;
+ struct resource res;
unsigned int psize;

/* Create our state struct */
@@ -56,21 +56,18 @@ int bcom_sram_init(struct device_node *sram_node, char *owner)
}

/* Get address and size of the sram */
- regaddr_p = of_get_address(sram_node, 0, &size64, NULL);
- if (!regaddr_p) {
+ rv = of_address_to_resource(sram_node, 0, &res);
+ if (rv) {
printk(KERN_ERR "%s: bcom_sram_init: "
"Invalid device node !\n", owner);
- rv = -EINVAL;
goto error_free;
}

- regaddr64 = of_translate_address(sram_node, regaddr_p);
-
- bcom_sram->base_phys = (phys_addr_t) regaddr64;
- bcom_sram->size = (unsigned int) size64;
+ bcom_sram->base_phys = res.start;
+ bcom_sram->size = resource_size(&res);

/* Request region */
- if (!request_mem_region(bcom_sram->base_phys, bcom_sram->size, owner)) {
+ if (!request_mem_region(res.start, resource_size(&res), owner)) {
printk(KERN_ERR "%s: bcom_sram_init: "
"Couldn't request region !\n", owner);
rv = -EBUSY;
@@ -79,7 +76,7 @@ int bcom_sram_init(struct device_node *sram_node, char *owner)

/* Map SRAM */
/* sram is not really __iomem */
- bcom_sram->base_virt = (void*) ioremap(bcom_sram->base_phys, bcom_sram->size);
+ bcom_sram->base_virt = (void*) ioremap(res.start, resource_size(&res));

if (!bcom_sram->base_virt) {
printk(KERN_ERR "%s: bcom_sram_init: "
@@ -120,7 +117,7 @@ int bcom_sram_init(struct device_node *sram_node, char *owner)
return 0;

error_release:
- release_mem_region(bcom_sram->base_phys, bcom_sram->size);
+ release_mem_region(res.start, resource_size(&res));
error_free:
kfree(bcom_sram);
bcom_sram = NULL;
--
2.39.2