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extcon: MAX77693: Add platform data for MUIC device to initialize registers

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This patch add platform data for MUIC device to initialize register
on probe() call because it should unmask interrupt mask register
and initialize some register related to MUIC device.

Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Myungjoo Ham <myungjoo.ham@samsung.com>
Signed-off-by: Kyungmin Park <kyungmin.park@samsung.com>
This commit is contained in:
Chanwoo Choi 2012-10-08 14:41:49 +09:00 committed by MyungJoo Ham
parent bf2627d66d
commit f8457d574f
2 changed files with 40 additions and 0 deletions
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27
drivers/extcon/extcon-max77693.c
View file

@ -651,6 +651,8 @@ static int max77693_muic_detect_accessory(struct max77693_muic_info *info)
static int __devinit max77693_muic_probe(struct platform_device *pdev)
{
struct max77693_dev *max77693 = dev_get_drvdata(pdev->dev.parent);
struct max77693_platform_data *pdata = dev_get_platdata(max77693->dev);
struct max77693_muic_platform_data *muic_pdata = pdata->muic_data;
struct max77693_muic_info *info;
int ret, i;
u8 id;
@ -721,6 +723,31 @@ static int __devinit max77693_muic_probe(struct platform_device *pdev)
goto err_extcon;
}
/* Initialize MUIC register by using platform data */
for (i = 0 ; i < muic_pdata->num_init_data ; i++) {
enum max77693_irq_source irq_src = MAX77693_IRQ_GROUP_NR;
max77693_write_reg(info->max77693->regmap_muic,
muic_pdata->init_data[i].addr,
muic_pdata->init_data[i].data);
switch (muic_pdata->init_data[i].addr) {
case MAX77693_MUIC_REG_INTMASK1:
irq_src = MUIC_INT1;
break;
case MAX77693_MUIC_REG_INTMASK2:
irq_src = MUIC_INT2;
break;
case MAX77693_MUIC_REG_INTMASK3:
irq_src = MUIC_INT3;
break;
}
if (irq_src < MAX77693_IRQ_GROUP_NR)
info->max77693->irq_masks_cur[irq_src]
= muic_pdata->init_data[i].data;
}
/* Check revision number of MUIC device*/
ret = max77693_read_reg(info->max77693->regmap_muic,
MAX77693_MUIC_REG_ID, &id);

13
include/linux/mfd/max77693.h
View file

@ -30,7 +30,20 @@
#ifndef __LINUX_MFD_MAX77693_H
#define __LINUX_MFD_MAX77693_H
struct max77693_reg_data {
u8 addr;
u8 data;
};
struct max77693_muic_platform_data {
struct max77693_reg_data *init_data;
int num_init_data;
};
struct max77693_platform_data {
int wakeup;
/* muic data */
struct max77693_muic_platform_data *muic_data;
};
#endif /* __LINUX_MFD_MAX77693_H */