diff options
| author | Rajeshwari Shinde <rajeshwari.s@samsung.com> | 2013-01-08 21:03:40 +0000 |
|---|---|---|
| committer | Minkyu Kang <mk7.kang@samsung.com> | 2013-01-10 10:12:50 +0900 |
| commit | 4050f0700f1822e6cb0095128192c15be5e750ee (patch) | |
| tree | 8d749f4e6fc3e759f63eee98c28f25632d5c943b /drivers/power | |
| parent | e00be0d30b40e83056de1e1bef245484d7d5b93e (diff) | |
PMIC: MAX77686: Add FDT Support
This patch adds fdt support to MAX77686.
Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
Diffstat (limited to 'drivers/power')
| -rw-r--r-- | drivers/power/pmic/pmic_max77686.c | 37 |
1 files changed, 34 insertions, 3 deletions
diff --git a/drivers/power/pmic/pmic_max77686.c b/drivers/power/pmic/pmic_max77686.c index fce0183afd6..7fcb4c0bea1 100644 --- a/drivers/power/pmic/pmic_max77686.c +++ b/drivers/power/pmic/pmic_max77686.c @@ -22,10 +22,14 @@ */ #include <common.h> +#include <fdtdec.h> +#include <i2c.h> #include <power/pmic.h> #include <power/max77686_pmic.h> #include <errno.h> +DECLARE_GLOBAL_DATA_PTR; + int pmic_init(unsigned char bus) { static const char name[] = "MAX77686_PMIC"; @@ -36,13 +40,40 @@ int pmic_init(unsigned char bus) return -ENOMEM; } - puts("Board PMIC init\n"); +#ifdef CONFIG_OF_CONTROL + const void *blob = gd->fdt_blob; + int node, parent; + + node = fdtdec_next_compatible(blob, 0, COMPAT_MAXIM_MAX77686_PMIC); + if (node < 0) { + debug("PMIC: No node for PMIC Chip in device tree\n"); + debug("node = %d\n", node); + return -1; + } + + parent = fdt_parent_offset(blob, node); + if (parent < 0) { + debug("%s: Cannot find node parent\n", __func__); + return -1; + } + + p->bus = i2c_get_bus_num_fdt(parent); + if (p->bus < 0) { + debug("%s: Cannot find I2C bus\n", __func__); + return -1; + } + p->hw.i2c.addr = fdtdec_get_int(blob, node, "reg", 9); +#else + p->bus = bus; + p->hw.i2c.addr = MAX77686_I2C_ADDR; +#endif + p->name = name; p->interface = PMIC_I2C; p->number_of_regs = PMIC_NUM_OF_REGS; - p->hw.i2c.addr = MAX77686_I2C_ADDR; p->hw.i2c.tx_num = 1; - p->bus = bus; + + puts("Board PMIC init\n"); return 0; } |