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Diffstat (limited to 'arch/powerpc/sysdev/axonram.c')
-rw-r--r--arch/powerpc/sysdev/axonram.c69
1 files changed, 32 insertions, 37 deletions
diff --git a/arch/powerpc/sysdev/axonram.c b/arch/powerpc/sysdev/axonram.c
index 88f4ae78783..47b6b9f81d4 100644
--- a/arch/powerpc/sysdev/axonram.c
+++ b/arch/powerpc/sysdev/axonram.c
@@ -25,7 +25,6 @@
#include <linux/bio.h>
#include <linux/blkdev.h>
-#include <linux/buffer_head.h>
#include <linux/device.h>
#include <linux/errno.h>
#include <linux/fs.h>
@@ -60,7 +59,7 @@
static int azfs_major, azfs_minor;
struct axon_ram_bank {
- struct of_device *device;
+ struct platform_device *device;
struct gendisk *disk;
unsigned int irq_id;
unsigned long ph_addr;
@@ -72,7 +71,7 @@ struct axon_ram_bank {
static ssize_t
axon_ram_sysfs_ecc(struct device *dev, struct device_attribute *attr, char *buf)
{
- struct of_device *device = to_of_device(dev);
+ struct platform_device *device = to_platform_device(dev);
struct axon_ram_bank *bank = device->dev.platform_data;
BUG_ON(!bank);
@@ -90,12 +89,12 @@ static DEVICE_ATTR(ecc, S_IRUGO, axon_ram_sysfs_ecc, NULL);
static irqreturn_t
axon_ram_irq_handler(int irq, void *dev)
{
- struct of_device *device = dev;
+ struct platform_device *device = dev;
struct axon_ram_bank *bank = device->dev.platform_data;
BUG_ON(!bank);
- dev_err(&device->dev, "Correctable memory error occured\n");
+ dev_err(&device->dev, "Correctable memory error occurred\n");
bank->ecc_counter++;
return IRQ_HANDLED;
}
@@ -104,39 +103,36 @@ axon_ram_irq_handler(int irq, void *dev)
* axon_ram_make_request - make_request() method for block device
* @queue, @bio: see blk_queue_make_request()
*/
-static int
+static void
axon_ram_make_request(struct request_queue *queue, struct bio *bio)
{
struct axon_ram_bank *bank = bio->bi_bdev->bd_disk->private_data;
unsigned long phys_mem, phys_end;
void *user_mem;
- struct bio_vec *vec;
+ struct bio_vec vec;
unsigned int transfered;
- unsigned short idx;
- int rc = 0;
+ struct bvec_iter iter;
- phys_mem = bank->io_addr + (bio->bi_sector << AXON_RAM_SECTOR_SHIFT);
+ phys_mem = bank->io_addr + (bio->bi_iter.bi_sector <<
+ AXON_RAM_SECTOR_SHIFT);
phys_end = bank->io_addr + bank->size;
transfered = 0;
- bio_for_each_segment(vec, bio, idx) {
- if (unlikely(phys_mem + vec->bv_len > phys_end)) {
+ bio_for_each_segment(vec, bio, iter) {
+ if (unlikely(phys_mem + vec.bv_len > phys_end)) {
bio_io_error(bio);
- rc = -ERANGE;
- break;
+ return;
}
- user_mem = page_address(vec->bv_page) + vec->bv_offset;
+ user_mem = page_address(vec.bv_page) + vec.bv_offset;
if (bio_data_dir(bio) == READ)
- memcpy(user_mem, (void *) phys_mem, vec->bv_len);
+ memcpy(user_mem, (void *) phys_mem, vec.bv_len);
else
- memcpy((void *) phys_mem, user_mem, vec->bv_len);
+ memcpy((void *) phys_mem, user_mem, vec.bv_len);
- phys_mem += vec->bv_len;
- transfered += vec->bv_len;
+ phys_mem += vec.bv_len;
+ transfered += vec.bv_len;
}
bio_endio(bio, 0);
-
- return rc;
}
/**
@@ -172,10 +168,9 @@ static const struct block_device_operations axon_ram_devops = {
/**
* axon_ram_probe - probe() method for platform driver
- * @device, @device_id: see of_platform_driver method
+ * @device: see platform_driver method
*/
-static int
-axon_ram_probe(struct of_device *device, const struct of_device_id *device_id)
+static int axon_ram_probe(struct platform_device *device)
{
static int axon_ram_bank_id = -1;
struct axon_ram_bank *bank;
@@ -185,7 +180,7 @@ axon_ram_probe(struct of_device *device, const struct of_device_id *device_id)
axon_ram_bank_id++;
dev_info(&device->dev, "Found memory controller on %s\n",
- device->node->full_name);
+ device->dev.of_node->full_name);
bank = kzalloc(sizeof(struct axon_ram_bank), GFP_KERNEL);
if (bank == NULL) {
@@ -198,13 +193,13 @@ axon_ram_probe(struct of_device *device, const struct of_device_id *device_id)
bank->device = device;
- if (of_address_to_resource(device->node, 0, &resource) != 0) {
+ if (of_address_to_resource(device->dev.of_node, 0, &resource) != 0) {
dev_err(&device->dev, "Cannot access device tree\n");
rc = -EFAULT;
goto failed;
}
- bank->size = resource.end - resource.start + 1;
+ bank->size = resource_size(&resource);
if (bank->size == 0) {
dev_err(&device->dev, "No DDR2 memory found for %s%d\n",
@@ -217,7 +212,7 @@ axon_ram_probe(struct of_device *device, const struct of_device_id *device_id)
AXON_RAM_DEVICE_NAME, axon_ram_bank_id, bank->size >> 20);
bank->ph_addr = resource.start;
- bank->io_addr = (unsigned long) ioremap_flags(
+ bank->io_addr = (unsigned long) ioremap_prot(
bank->ph_addr, bank->size, _PAGE_NO_CACHE);
if (bank->io_addr == 0) {
dev_err(&device->dev, "ioremap() failed\n");
@@ -253,7 +248,7 @@ axon_ram_probe(struct of_device *device, const struct of_device_id *device_id)
blk_queue_logical_block_size(bank->disk->queue, AXON_RAM_SECTOR_SIZE);
add_disk(bank->disk);
- bank->irq_id = irq_of_parse_and_map(device->node, 0);
+ bank->irq_id = irq_of_parse_and_map(device->dev.of_node, 0);
if (bank->irq_id == NO_IRQ) {
dev_err(&device->dev, "Cannot access ECC interrupt ID\n");
rc = -EFAULT;
@@ -304,7 +299,7 @@ failed:
* @device: see of_platform_driver method
*/
static int
-axon_ram_remove(struct of_device *device)
+axon_ram_remove(struct platform_device *device)
{
struct axon_ram_bank *bank = device->dev.platform_data;
@@ -326,13 +321,13 @@ static struct of_device_id axon_ram_device_id[] = {
{}
};
-static struct of_platform_driver axon_ram_driver = {
- .match_table = axon_ram_device_id,
+static struct platform_driver axon_ram_driver = {
.probe = axon_ram_probe,
.remove = axon_ram_remove,
- .driver = {
- .owner = THIS_MODULE,
- .name = AXON_RAM_MODULE_NAME,
+ .driver = {
+ .name = AXON_RAM_MODULE_NAME,
+ .owner = THIS_MODULE,
+ .of_match_table = axon_ram_device_id,
},
};
@@ -350,7 +345,7 @@ axon_ram_init(void)
}
azfs_minor = 0;
- return of_register_platform_driver(&axon_ram_driver);
+ return platform_driver_register(&axon_ram_driver);
}
/**
@@ -359,7 +354,7 @@ axon_ram_init(void)
static void __exit
axon_ram_exit(void)
{
- of_unregister_platform_driver(&axon_ram_driver);
+ platform_driver_unregister(&axon_ram_driver);
unregister_blkdev(azfs_major, AXON_RAM_DEVICE_NAME);
}
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2025-11-09 06:46:44 +0000