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mfd: ab8500-sysctrl: Provide configuration for SysClkReqRfClkBuf registers

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Add the possibility to pass configuration settings for
SysCl1kReqRfClkBuf to SysClk8ReqRfClkBuf via platform data.

Signed-off-by: Lee Jones <lee.jones@linaro.org>
Signed-off-by: Kennet Wallden <kennet.wallden@stericsson.com>
Reviewed-by: Karl-Johan PERNTZ <karl-johan.perntz@stericsson.com>
Reviewed-by: Bengt JONSSON <bengt.g.jonsson@stericsson.com>
This commit is contained in:
Kennet Wallden 2011-09-27 09:23:56 +02:00 committed by Lee Jones
parent d0b32fa1e1
commit 1abf063ffd
3 changed files with 31 additions and 0 deletions
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24
drivers/mfd/ab8500-sysctrl.c
View File

@ -113,11 +113,35 @@ int ab8500_sysctrl_write(u16 reg, u8 mask, u8 value)
static int ab8500_sysctrl_probe(struct platform_device *pdev)
{
struct ab8500_platform_data *plat;
struct ab8500_sysctrl_platform_data *pdata;
sysctrl_dev = &pdev->dev;
plat = dev_get_platdata(pdev->dev.parent);
if (plat->pm_power_off)
pm_power_off = ab8500_power_off;
pdata = plat->sysctrl;
if (pdata) {
int ret, i, j;
for (i = AB8500_SYSCLKREQ1RFCLKBUF;
i <= AB8500_SYSCLKREQ8RFCLKBUF; i++) {
j = i - AB8500_SYSCLKREQ1RFCLKBUF;
ret = ab8500_sysctrl_write(i, 0xff,
pdata->initial_req_buf_config[j]);
dev_dbg(&pdev->dev,
"Setting SysClkReq%dRfClkBuf 0x%X\n",
j + 1,
pdata->initial_req_buf_config[j]);
if (ret < 0) {
dev_err(&pdev->dev,
"unable to set sysClkReq%dRfClkBuf: "
"%d\n", j + 1, ret);
}
}
}
return 0;
}

5
include/linux/mfd/abx500/ab8500-sysctrl.h
View File

@ -37,6 +37,11 @@ static inline int ab8500_sysctrl_clear(u16 reg, u8 bits)
return ab8500_sysctrl_write(reg, bits, 0);
}
/* Configuration data for SysClkReq1RfClkBuf - SysClkReq8RfClkBuf */
struct ab8500_sysctrl_platform_data {
u8 initial_req_buf_config[8];
};
/* Registers */
#define AB8500_TURNONSTATUS 0x100
#define AB8500_RESETSTATUS 0x101

2
include/linux/mfd/abx500/ab8500.h
View File

@ -270,6 +270,7 @@ struct regulator_reg_init;
struct regulator_init_data;
struct ab8500_gpio_platform_data;
struct ab8500_codec_platform_data;
struct ab8500_sysctrl_platform_data;
/**
* struct ab8500_platform_data - AB8500 platform data
@ -291,6 +292,7 @@ struct ab8500_platform_data {
struct regulator_init_data *regulator;
struct ab8500_gpio_platform_data *gpio;
struct ab8500_codec_platform_data *codec;
struct ab8500_sysctrl_platform_data *sysctrl;
};
extern int ab8500_init(struct ab8500 *ab8500,