gpio/omap: cleanup show revision, remove cpu_is checks, display only once

Remove cpu_is_* checks from gpio_show_revision() by passing in the
revision address offset from platform data.  SoCs with no revision
register (15xx, 7xx, and all MPUIOs) use -1 (actually, USHRT_MAX) to
signify no register.

While here, all GPIO banks are assumed to be the same revision, so fix
show_revision() to only show the revision for the first bank it finds.
This removes duplicate GPIO revision prints during boot.

Thanks to Charulatha V <charu@ti.com> for finding/fixing a few -1s
that were missed in the original patch.

Signed-off-by: Kevin Hilman <khilman@ti.com>

1 files changed, 2 insertions, 0 deletions

diff --git a/arch/arm/mach-omap2/gpio.c b/arch/arm/mach-omap2/gpio.c
index 316d930651f1..9a46d7773a48 100644
--- a/arch/arm/mach-omap2/gpio.c
+++ b/arch/arm/mach-omap2/gpio.c
@@ -71,6 +71,7 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
         case 0:
         case 1:
                 pdata->bank_type = METHOD_GPIO_24XX;
+                pdata->regs->revision = OMAP24XX_GPIO_REVISION;
                 pdata->regs->direction = OMAP24XX_GPIO_OE;
                 pdata->regs->datain = OMAP24XX_GPIO_DATAIN;
                 pdata->regs->dataout = OMAP24XX_GPIO_DATAOUT;
@@ -86,6 +87,7 @@ static int omap2_gpio_dev_init(struct omap_hwmod *oh, void *unused)
                 break;
         case 2:
                 pdata->bank_type = METHOD_GPIO_44XX;
+                pdata->regs->revision = OMAP4_GPIO_REVISION;
                 pdata->regs->direction = OMAP4_GPIO_OE;
                 pdata->regs->datain = OMAP4_GPIO_DATAIN;
                 pdata->regs->dataout = OMAP4_GPIO_DATAOUT;