pata-rb532-cf: get rid of the irq_to_gpio() call

The RB532 platform specific irq_to_gpio() implementation has been
removed with commit 832f5dacfa0b ("MIPS: Remove all the uses of
custom gpio.h"). Now the platform uses the generic stub which causes
the following error:

  pata-rb532-cf pata-rb532-cf: no GPIO found for irq149
  pata-rb532-cf: probe of pata-rb532-cf failed with error -2

Drop the irq_to_gpio() call and get the GPIO number from platform
data instead. After this change, the driver works again:

  scsi host0: pata-rb532-cf
  ata1: PATA max PIO4 irq 149
  ata1.00: CFA: CF 1GB, 20080820, max MWDMA4
  ata1.00: 1989792 sectors, multi 0: LBA
  ata1.00: configured for PIO4
  scsi 0:0:0:0: Direct-Access     ATA      CF 1GB           0820 PQ: 0\
  ANSI: 5
  sd 0:0:0:0: [sda] 1989792 512-byte logical blocks: (1.01 GB/971 MiB)
  sd 0:0:0:0: [sda] Write Protect is off
  sd 0:0:0:0: [sda] Write cache: disabled, read cache: enabled, doesn't\
  support DPO or FUA
   sda: sda1 sda2
  sd 0:0:0:0: [sda] Attached SCSI disk

Fixes: 832f5dacfa0b ("MIPS: Remove all the uses of custom gpio.h")
Cc: Alban Bedel <albeu@free.fr>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Arnd Bergmann <arnd@arndb.de>
Cc: <stable@vger.kernel.org> #v4.3+
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: Tejun Heo <tj@kernel.org>

1 files changed, 10 insertions, 1 deletions

diff --git a/drivers/ata/pata_rb532_cf.c b/drivers/ata/pata_rb532_cf.c
index 12fe0f3bb7e9..c8b6a780a290 100644
--- a/drivers/ata/pata_rb532_cf.c
+++ b/drivers/ata/pata_rb532_cf.c
@@ -32,6 +32,8 @@
 #include <linux/libata.h>
 #include <scsi/scsi_host.h>
 
+#include <asm/mach-rc32434/rb.h>
+
 #define DRV_NAME        "pata-rb532-cf"
 #define DRV_VERSION     "0.1.0"
 #define DRV_DESC        "PATA driver for RouterBOARD 532 Compact Flash"
@@ -107,6 +109,7 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
         int gpio;
         struct resource *res;
         struct ata_host *ah;
+        struct cf_device *pdata;
         struct rb532_cf_info *info;
         int ret;
 
@@ -122,7 +125,13 @@ static int rb532_pata_driver_probe(struct platform_device *pdev)
                 return -ENOENT;
         }
 
-        gpio = irq_to_gpio(irq);
+        pdata = dev_get_platdata(&pdev->dev);
+        if (!pdata) {
+                dev_err(&pdev->dev, "no platform data specified\n");
+                return -EINVAL;
+        }
+
+        gpio = pdata->gpio_pin;
         if (gpio < 0) {
                 dev_err(&pdev->dev, "no GPIO found for irq%d\n", irq);
                 return -ENOENT;