summaryrefslogtreecommitdiff
path: root/drivers/ata
diff options
context:
space:
mode:
authorMichael Schmitz <schmitzmic@gmail.com>2019-11-06 05:47:29 +0300
committerGeert Uytterhoeven <geert@linux-m68k.org>2019-11-18 12:18:59 +0300
commit5ed0794cde59365d4d5895b89bb2f7ef7ffdbd55 (patch)
treee615603f8b7360ff1bf73b0a79ab09a7a8d9c35b /drivers/ata
parent032f128dbd29a376ff8f622150191f3aea8b2e9f (diff)
downloadlinux-5ed0794cde59365d4d5895b89bb2f7ef7ffdbd55.tar.xz
m68k/atari: Convert Falcon IDE drivers to platform drivers
Autoloading of Falcon IDE driver modules requires converting these drivers to platform drivers. Add platform device for Falcon IDE interface in Atari platform setup code. Use this in the pata_falcon driver in place of the simple platform device set up on the fly. Convert falconide driver to use the same platform device that is used by pata_falcon also. (With the introduction of a platform device for the Atari Falcon IDE interface, the old Falcon IDE driver no longer loads (resource already claimed by the platform device)). Tested (as built-in driver) on my Atari Falcon. Signed-off-by: Michael Schmitz <schmitzmic@gmail.com> Acked-by: Bartlomiej Zolnierkiewicz <b.zolnierkie@samsung.com> Link: https://lore.kernel.org/r/1573008449-8226-1-git-send-email-schmitzmic@gmail.com Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/pata_falcon.c42
1 files changed, 28 insertions, 14 deletions
diff --git a/drivers/ata/pata_falcon.c b/drivers/ata/pata_falcon.c
index 41e0d6a6cd05..27b0952fde6b 100644
--- a/drivers/ata/pata_falcon.c
+++ b/drivers/ata/pata_falcon.c
@@ -33,7 +33,6 @@
#define DRV_NAME "pata_falcon"
#define DRV_VERSION "0.1.0"
-#define ATA_HD_BASE 0xfff00000
#define ATA_HD_CONTROL 0x39
static struct scsi_host_template pata_falcon_sht = {
@@ -120,24 +119,22 @@ static struct ata_port_operations pata_falcon_ops = {
.set_mode = pata_falcon_set_mode,
};
-static int pata_falcon_init_one(void)
+static int __init pata_falcon_init_one(struct platform_device *pdev)
{
+ struct resource *res;
struct ata_host *host;
struct ata_port *ap;
- struct platform_device *pdev;
void __iomem *base;
- if (!MACH_IS_ATARI || !ATARIHW_PRESENT(IDE))
- return -ENODEV;
-
- pr_info(DRV_NAME ": Atari Falcon PATA controller\n");
+ dev_info(&pdev->dev, "Atari Falcon PATA controller\n");
- pdev = platform_device_register_simple(DRV_NAME, 0, NULL, 0);
- if (IS_ERR(pdev))
- return PTR_ERR(pdev);
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ if (!res)
+ return -ENODEV;
- if (!devm_request_mem_region(&pdev->dev, ATA_HD_BASE, 0x40, DRV_NAME)) {
- pr_err(DRV_NAME ": resources busy\n");
+ if (!devm_request_mem_region(&pdev->dev, res->start,
+ resource_size(res), DRV_NAME)) {
+ dev_err(&pdev->dev, "resources busy\n");
return -EBUSY;
}
@@ -152,7 +149,7 @@ static int pata_falcon_init_one(void)
ap->flags |= ATA_FLAG_SLAVE_POSS | ATA_FLAG_NO_IORDY;
ap->flags |= ATA_FLAG_PIO_POLLING;
- base = (void __iomem *)ATA_HD_BASE;
+ base = (void __iomem *)res->start;
ap->ioaddr.data_addr = base;
ap->ioaddr.error_addr = base + 1 + 1 * 4;
ap->ioaddr.feature_addr = base + 1 + 1 * 4;
@@ -174,9 +171,26 @@ static int pata_falcon_init_one(void)
return ata_host_activate(host, 0, NULL, 0, &pata_falcon_sht);
}
-module_init(pata_falcon_init_one);
+static int __exit pata_falcon_remove_one(struct platform_device *pdev)
+{
+ struct ata_host *host = platform_get_drvdata(pdev);
+
+ ata_host_detach(host);
+
+ return 0;
+}
+
+static struct platform_driver pata_falcon_driver = {
+ .remove = __exit_p(pata_falcon_remove_one),
+ .driver = {
+ .name = "atari-falcon-ide",
+ },
+};
+
+module_platform_driver_probe(pata_falcon_driver, pata_falcon_init_one);
MODULE_AUTHOR("Bartlomiej Zolnierkiewicz");
MODULE_DESCRIPTION("low-level driver for Atari Falcon PATA");
MODULE_LICENSE("GPL v2");
+MODULE_ALIAS("platform:atari-falcon-ide");
MODULE_VERSION(DRV_VERSION);