[U-Boot] [PATCH v3 1/2] mmc: Board-specific MMC power initializations

[Igor Grinberg]

Hi Paul,

On 11/01/14 12:52, Paul Kocialkowski wrote:
> Some devices may use non-standard combinations of regulators to power MMC:
> this allows these devices to provide a board-specific MMC power init function
> to set everything up in their own way.
> 
> Signed-off-by: Paul Kocialkowski <contact at paulk.fr>
> ---
>  drivers/mmc/mmc.c | 8 ++++++++
>  include/mmc.h     | 1 +
>  2 files changed, 9 insertions(+)
> 
> diff --git a/drivers/mmc/mmc.c b/drivers/mmc/mmc.c
> index 44a4feb..125f347 100644
> --- a/drivers/mmc/mmc.c
> +++ b/drivers/mmc/mmc.c
> @@ -1277,6 +1277,12 @@ block_dev_desc_t *mmc_get_dev(int dev)
>  }
>  #endif
>  
> +/* board-specific MMC power initializations. */
> +__weak int board_mmc_power_init(void)
> +{
> +	return -1;
> +}
> +
>  int mmc_start_init(struct mmc *mmc)
>  {
>  	int err;
> @@ -1293,6 +1299,8 @@ int mmc_start_init(struct mmc *mmc)
>  	if (mmc->has_init)
>  		return 0;
>  
> +	board_mmc_power_init();
> +

Shouldn't we have some error handling here?

>  	/* made sure it's not NULL earlier */
>  	err = mmc->cfg->ops->init(mmc);
>  
> diff --git a/include/mmc.h b/include/mmc.h
> index d74a190..aaea644 100644
> --- a/include/mmc.h
> +++ b/include/mmc.h
> @@ -385,6 +385,7 @@ struct mmc *mmc_spi_init(uint bus, uint cs, uint speed, uint mode);
>  int mmc_legacy_init(int verbose);
>  #endif
>  
> +int board_mmc_power_init(void);
>  int board_mmc_init(bd_t *bis);
>  int cpu_mmc_init(bd_t *bis);
>  int mmc_get_env_addr(struct mmc *mmc, int copy, u32 *env_addr);
> 

-- 
Regards,
Igor.