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>

diff --git a/drivers/mfd/ab8500-sysctrl.c b/drivers/mfd/ab8500-sysctrl.c
index 3aaff6043e184735c60ea166e502da18ec73cb20..236324e1136defa55572387ec5b5df58907d775b 100644 (file)
--- 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 10eb50973c393dbd9a75ef8c6e214670e7c0785b..ebf12e793db982fd06e96682c9e1ad1b7f4a6c42 100644 (file)
--- 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 6119b2fbad9745a4af9b42323d610ef2980b53a7..5251bca56326ebe50de20f250dd2da73b3ea6317 100644 (file)
--- 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,