[U-Boot] [RFC 7/9] pico-imx7d: Convert to DM PMIC

[Fabio Estevam]

On Sun, Jan 20, 2019 at 8:14 PM Joris Offouga <offougajoris at gmail.com> wrote:
>
> This patch converts the pico-pi-imx7d to use the DM PMIC model.
>
> Signed-off-by: Joris Offouga <offougajoris at gmail.com>
> ---
>  board/technexion/pico-imx7d/pico-imx7d.c | 44 ++++++++++++--------------------
>  configs/pico-pi-imx7d_defconfig          |  6 +++++
>  include/configs/pico-imx7d.h             |  6 -----
>  3 files changed, 23 insertions(+), 33 deletions(-)
>
> diff --git a/board/technexion/pico-imx7d/pico-imx7d.c b/board/technexion/pico-imx7d/pico-imx7d.c
> index cd7d5b1..095242d 100644
> --- a/board/technexion/pico-imx7d/pico-imx7d.c
> +++ b/board/technexion/pico-imx7d/pico-imx7d.c
> @@ -40,47 +40,37 @@ int dram_init(void)
>         return 0;
>  }
>
> -#ifdef CONFIG_POWER
> -#define I2C_PMIC       3
> +#ifdef CONFIG_DM_PMIC
>  int power_init_board(void)
>  {
> -       struct pmic *p;
> -       int ret;
> -       unsigned int reg, rev_id;
> +       struct udevice *dev;
> +       int ret=0, dev_id=0, rev_id=0, reg=0;
>
> -       ret = power_pfuze3000_init(I2C_PMIC);
> -       if (ret)
> -               return ret;
> +       ret = pmic_get("pfuze3000", &dev);
> +       if (ret == -ENODEV)
> +               return 0;
> +       if (ret != 0)
>
> -       p = pmic_get("PFUZE3000");
> -       ret = pmic_probe(p);
> -       if (ret)
> -               return ret;
> -
> -       pmic_reg_read(p, PFUZE3000_DEVICEID, &reg);
> -       pmic_reg_read(p, PFUZE3000_REVID, &rev_id);
> -       printf("PMIC:  PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", reg, rev_id);
> +       dev_id = pmic_reg_read(dev, PFUZE3000_DEVICEID);
> +       rev_id = pmic_reg_read(dev, PFUZE3000_REVID);
> +       printf("PMIC:  PFUZE3000 DEV_ID=0x%x REV_ID=0x%x\n", dev_id, rev_id);
>
>         /* disable Low Power Mode during standby mode */
> -       pmic_reg_read(p, PFUZE3000_LDOGCTL, &reg);
> -       reg |= 0x1;
> -       pmic_reg_write(p, PFUZE3000_LDOGCTL, reg);
> +       pmic_clrsetbits(dev, PFUZE3000_LDOGCTL, 0, 1);

The mask 0 does not look correct. I will fix it in the warp board code as well.

You could simply write:
pmic_clrsetbits(dev, PFUZE3000_LDOGCTL, 1, 1);

or keep using pmic_reg_read(), modify and pmic_reg_write().