On 6/15/2010 5:05 PM, Varadarajan, Charulatha wrote:
From: Charulatha V<[email protected]>
This patch implements GPIO as a platform device. Also it
implements OMAP2PLUS specific GPIO as HWMOD FW adapted device.
OMAP2PLUS GPIO uses runtime APIs.
GPIO APIs are used in machine_init functions. Hence it is
required to complete GPIO probe before machine_init. Therefore
GPIO device register and driver register are implemented as
postcore_initcalls.
Inorder to convert GPIO as platform device, modifications are
required in clockxxxx_data.c file for OMAP1 so that device names
can be used to obtain clock instead of getting clocks by
name/NULL ptr.
omap_gpio_init() does nothing now and this function would be
removed in the next patch as it's usage is spread across most of
the board files.
Signed-off-by: Charulatha V<[email protected]>
Signed-off-by: Rajendra Nayak<[email protected]>
---
[snip]
+static inline int init_gpio_info(struct platform_device *pdev)
+{
+ gpio_bank = kzalloc(gpio_bank_count * sizeof(struct gpio_bank),
+ GFP_KERNEL);
This is the real issue with the gpio_bank_count.
You are creating a global driver information related to all instances of
this device with a per device variable.
You should store the registers per device, and that will remove the need
for that global information.
Benoit
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