On Thu, Nov 1, 2018 at 8:52 AM Niklas Söderlund
<niklas.soderlund@xxxxxxxxxxxx> wrote:
>
> From: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
>
> On runtime power management resume, the host clock needs to be
> enabled before calling tmio_mmc_reset. If the mmc device has a power
> domain entry, the host clock is enabled via genpd_runtime_resume,
> running before tmio_mmc_host_runtime_resume. If the mmc device has no
> power domain entry, however, genpd_runtime_resume is not called. This
> patch changes tmio_mmc_host_runtime_resume to enable the host clock
> before calling tmio_mmc_reset.
>
> Based on work from Masaharu Hayakawa.
>
> Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@xxxxxxxxxxxx>
Reviewed-by: Masahiro Yamada <yamada.masahiro@xxxxxxxxxxxxx>
> ---
> drivers/mmc/host/tmio_mmc_core.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/tmio_mmc_core.c b/drivers/mmc/host/tmio_mmc_core.c
> index 8d64f6196f33e882..953562a12a0d6ebc 100644
> --- a/drivers/mmc/host/tmio_mmc_core.c
> +++ b/drivers/mmc/host/tmio_mmc_core.c
> @@ -1328,8 +1328,8 @@ int tmio_mmc_host_runtime_resume(struct device *dev)
> {
> struct tmio_mmc_host *host = dev_get_drvdata(dev);
>
> - host->reset(host);
> tmio_mmc_clk_enable(host);
> + host->reset(host);
>
> if (host->clk_cache)
> host->set_clock(host, host->clk_cache);
> --
> 2.19.1
>
--
Best Regards
Masahiro Yamada
