diff options
| author |  Kennet Wallden <kennet.wallden@stericsson.com>
| 2011-09-27 09:23:56 +0200 |
|---|---|---|
| committer |  Lee Jones <lee.jones@linaro.org>
| 2013-02-04 08:31:29 +0000 |
| commit | 1abf063ffd18e6934bb81a776b3d71278eeff4ab (patch) | |
| tree | ea4c1329d051017e2f0d46537946d2489da5502f | |
| parent | mfd: ab8500-gpadc: Change to usleep_range() for greater resolution (diff) | |
| download | linux-1abf063ffd18e6934bb81a776b3d71278eeff4ab.tar.gz linux-1abf063ffd18e6934bb81a776b3d71278eeff4ab.tar.bz2 linux-1abf063ffd18e6934bb81a776b3d71278eeff4ab.zip | |
mfd: ab8500-sysctrl: Provide configuration for SysClkReqRfClkBuf registers
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>
| -rw-r--r-- | drivers/mfd/ab8500-sysctrl.c | 24 | ||||
| -rw-r--r-- | include/linux/mfd/abx500/ab8500-sysctrl.h | 5 | ||||
| -rw-r--r-- | include/linux/mfd/abx500/ab8500.h | 2 |
3 files changed, 31 insertions, 0 deletions
diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c index 3aaff6043e18..236324e1136d 100644 --- a/drivers/mfd/ab8500-sysctrl.c +++ b/drivers/mfd/ab8500-sysctrl.c @@ -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; } diff --git a/include/linux/mfd/abx500/ab8500-sysctrl.h b/include/linux/mfd/abx500/ab8500-sysctrl.h index 10eb50973c39..ebf12e793db9 100644 --- a/include/linux/mfd/abx500/ab8500-sysctrl.h +++ b/include/linux/mfd/abx500/ab8500-sysctrl.h @@ -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 diff --git a/include/linux/mfd/abx500/ab8500.h b/include/linux/mfd/abx500/ab8500.h index 6119b2fbad97..5251bca56326 100644 --- a/include/linux/mfd/abx500/ab8500.h +++ b/include/linux/mfd/abx500/ab8500.h @@ -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, |