On Thu, Jan 3, 2013 at 9:38 PM, Rajeshwari Shinde
<rajeshwar...@samsung.com> wrote:
> This patch adds fdt support to MAX77686.
>
> Signed-off-by: Rajeshwari Shinde <rajeshwar...@samsung.com>
Acked-by: Simon Glass <s...@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
>
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