diff options
| -rw-r--r-- | arch/arm/mach-shmobile/board-bonito.c | 53 |
1 files changed, 53 insertions, 0 deletions
diff --git a/arch/arm/mach-shmobile/board-bonito.c b/arch/arm/mach-shmobile/board-bonito.c index efaa5feb39b8..d78008bbdf70 100644 --- a/arch/arm/mach-shmobile/board-bonito.c +++ b/arch/arm/mach-shmobile/board-bonito.c @@ -20,6 +20,7 @@ */ #include <linux/kernel.h> +#include <linux/i2c.h> #include <linux/init.h> #include <linux/interrupt.h> #include <linux/irq.h> @@ -84,6 +85,56 @@ static void bonito_fpga_write(u32 offset, u16 val) } /* +* PMIC settings +* +* FIXME +* +* bonito board needs some settings by pmic which use i2c access. +* pmic settings use device_initcall() here for use it. +*/ +static __u8 *pmic_settings = NULL; +static __u8 pmic_do_2A[] = { + 0x1C, 0x09, + 0x1A, 0x80, + 0xff, 0xff, +}; + +static int __init pmic_init(void) +{ + struct i2c_adapter *a = i2c_get_adapter(0); + struct i2c_msg msg; + __u8 buf[2]; + int i, ret; + + if (!pmic_settings) + return 0; + if (!a) + return 0; + + msg.addr = 0x46; + msg.buf = buf; + msg.len = 2; + msg.flags = 0; + + for (i = 0; ; i += 2) { + buf[0] = pmic_settings[i + 0]; + buf[1] = pmic_settings[i + 1]; + + if ((0xff == buf[0]) && (0xff == buf[1])) + break; + + ret = i2c_transfer(a, &msg, 1); + if (ret < 0) { + pr_err("i2c transfer fail\n"); + break; + } + } + + return 0; +} +device_initcall(pmic_init); + +/* * core board devices */ static struct platform_device *bonito_core_devices[] __initdata = { @@ -154,6 +205,8 @@ static void __init bonito_init(void) r8a7740_pinmux_init(); + pmic_settings = pmic_do_2A; + /* * core board settings */ |
