On 3/12/22 16:11, Lukasz Majewski wrote:
> The tps65217 PMIC driver is used with am335x SoC based designs.
> 
> It is used in the SPL (MLO) as well, so the DM conversion only is
> for u-boot proper.
> 
> This driver only allows simple reading/writing/dumping of the content
> of its registers and requires the DM_I2C for proper operation.
> 
> Signed-off-by: Lukasz Majewski <lu...@denx.de>


Reviewed-by: Jaehoon Chung <jh80.ch...@samsung.com>

Best Regards,
Jaehoon Chung

> ---
> 
> (no changes since v1)
> 
>  drivers/power/pmic/pmic_tps65217.c | 82 ++++++++++++++++++++++++++++++
>  1 file changed, 82 insertions(+)
> 
> diff --git a/drivers/power/pmic/pmic_tps65217.c 
> b/drivers/power/pmic/pmic_tps65217.c
> index c7f532df4d..ccbf223593 100644
> --- a/drivers/power/pmic/pmic_tps65217.c
> +++ b/drivers/power/pmic/pmic_tps65217.c
> @@ -6,8 +6,13 @@
>  
>  #include <common.h>
>  #include <i2c.h>
> +#include <dm.h>
> +#include <errno.h>
> +#include <fdtdec.h>
> +#include <power/pmic.h>
>  #include <power/tps65217.h>
>  
> +#if !CONFIG_IS_ENABLED(DM_PMIC)
>  struct udevice *tps65217_dev __section(".data") = NULL;
>  
>  /**
> @@ -148,3 +153,80 @@ int power_tps65217_init(unsigned char bus)
>  #endif
>       return 0;
>  }
> +#else /* CONFIG_IS_ENABLED(DM_PMIC) */
> +static const struct pmic_child_info pmic_children_info[] = {
> +     { .prefix = "ldo", .driver = "tps65217_ldo" },
> +     { },
> +};
> +
> +static int tps65217_reg_count(struct udevice *dev)
> +{
> +     return TPS65217_PMIC_NUM_OF_REGS;
> +}
> +
> +static int tps65217_write(struct udevice *dev, uint reg, const uint8_t *buff,
> +                       int len)
> +{
> +     if (dm_i2c_write(dev, reg, buff, len)) {
> +             pr_err("write error to device: %p register: %#x!\n", dev, reg);
> +             return -EIO;
> +     }
> +
> +     return 0;
> +}
> +
> +static int tps65217_read(struct udevice *dev, uint reg, uint8_t *buff, int 
> len)
> +{
> +     int ret;
> +
> +     ret = dm_i2c_read(dev, reg, buff, len);
> +     if (ret) {
> +             pr_err("read error %d from device: %p register: %#x!\n", ret,
> +                    dev, reg);
> +             return -EIO;
> +     }
> +
> +     return 0;
> +}
> +
> +static int tps65217_bind(struct udevice *dev)
> +{
> +     ofnode regulators_node;
> +     int children;
> +
> +     regulators_node = dev_read_subnode(dev, "regulators");
> +     if (!ofnode_valid(regulators_node)) {
> +             debug("%s: %s regulators subnode not found!\n", __func__,
> +                   dev->name);
> +             return -ENXIO;
> +     }
> +
> +     debug("%s: '%s' - found regulators subnode\n", __func__, dev->name);
> +
> +     children = pmic_bind_children(dev, regulators_node, pmic_children_info);
> +     if (!children)
> +             debug("%s: %s - no child found\n", __func__, dev->name);
> +
> +     /* Always return success for this device */
> +     return 0;
> +}
> +
> +static struct dm_pmic_ops tps65217_ops = {
> +     .reg_count = tps65217_reg_count,
> +     .read = tps65217_read,
> +     .write = tps65217_write,
> +};
> +
> +static const struct udevice_id tps65217_ids[] = {
> +     { .compatible = "ti,tps65217" },
> +     { }
> +};
> +
> +U_BOOT_DRIVER(pmic_tps65217) = {
> +     .name = "tps65217 pmic",
> +     .id = UCLASS_PMIC,
> +     .of_match = tps65217_ids,
> +     .bind = tps65217_bind,
> +     .ops = &tps65217_ops,
> +};
> +#endif

Reply via email to