| Message ID | 1357277939-3033-4-git-send-email-rajeshwari.s@samsung.com |
|---|---|
| State | Superseded |
| Headers | show |
On Thu, Jan 3, 2013 at 9:38 PM, Rajeshwari Shinde <rajeshwari.s@samsung.com> wrote: > This patch adds fdt support to MAX77686. > > Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> Acked-by: Simon Glass <sjg@chromium.org> > --- > Changes in V2: > - Corrected indentation errors. > Changes in V3: > - Rebased on top of the latest implementation > of PMIC > Changes in V4: > - Corrected PMIC register address > 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 fce0183..a1ee04e 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; > } > -- > 1.7.4.4 >
diff --git a/drivers/power/pmic/pmic_max77686.c b/drivers/power/pmic/pmic_max77686.c index fce0183..a1ee04e 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; }
This patch adds fdt support to MAX77686. Signed-off-by: Rajeshwari Shinde <rajeshwari.s@samsung.com> --- Changes in V2: - Corrected indentation errors. Changes in V3: - Rebased on top of the latest implementation of PMIC Changes in V4: - Corrected PMIC register address drivers/power/pmic/pmic_max77686.c | 37 +++++++++++++++++++++++++++++++++-- 1 files changed, 34 insertions(+), 3 deletions(-)