On 2/1/12, Russell King - ARM Linux <linux@xxxxxxxxxxxxxxxx> wrote:
> On Wed, Feb 01, 2012 at 12:50:39AM +0900, Kukjin Kim wrote:
>> From: Sangsu Park <sangsu4u.park@xxxxxxxxxxx>
>>
>> This patch adds follwing.
>> - IO-map for EXYNOS5250 GPIO support
>> - EXYNOS5250 GPIO bank size/number definitions
>> - memory map definition for S5P GPIO4
>>
>> Signed-off-by: Sangsu Park <sangsu4u.park@xxxxxxxxxxx>
>> Signed-off-by: Kukjin Kim <kgene.kim@xxxxxxxxxxx>
>
> Do you actually need these static mapping definitions? The samsung
> gpiolib initialization is called from a core_initcall(), and at this
> time ioremap() is fully capable of working.
If it assumes it has 8 gpios, you can make it simple calculate it like this.
enum exynos5_gpios {
EXYNOS5_GPIO_A,
...
};
EXYNOS5_GPIO_A_START(n) (EXYNOS5_GPIO_A * 8)
with this one, it can make a simple gpio driver when using irq domain for GPIO.
Thank you,
Kyungmin Park
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