Re: [PATCH 2/4] mmc: dw_mmc: add setup_clk for init hook

From: Jaehoon Chung
Date: Thu Feb 04 2016 - 01:05:08 EST


Hi, Shawn.

On 01/28/2016 10:31 AM, Shawn Lin wrote:
> We add this new argument into init hook for
> variant drivers to decide whether to do clock
> related stuff inside the hook.
>
> Signed-off-by: Shawn Lin <shawn.lin@xxxxxxxxxxxxxx>
> ---
>
> drivers/mmc/host/dw_mmc-exynos.c | 4 ++--
> drivers/mmc/host/dw_mmc-rockchip.c | 2 +-
> drivers/mmc/host/dw_mmc.c | 2 +-
> drivers/mmc/host/dw_mmc.h | 2 +-
> 4 files changed, 5 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c
> index 3a7e835..edaa117 100644
> --- a/drivers/mmc/host/dw_mmc-exynos.c
> +++ b/drivers/mmc/host/dw_mmc-exynos.c
> @@ -91,7 +91,7 @@ static inline u8 dw_mci_exynos_get_ciu_div(struct dw_mci *host)
> return SDMMC_CLKSEL_GET_DIV(mci_readl(host, CLKSEL)) + 1;
> }
>
> -static int dw_mci_exynos_priv_init(struct dw_mci *host)
> +static int dw_mci_exynos_priv_init(struct dw_mci *host, bool setup_clk)
> {

"bool setup_clk" is made because of exynos SoC, right?
Hmm. I'm checking how we can control without "setup_clk". Waiting for this.

Thanks for removing the hooks. :)

Best Regards,
Jaehoon Chung

> struct dw_mci_exynos_priv_data *priv = host->priv;
>
> @@ -159,7 +159,7 @@ static int dw_mci_exynos_resume(struct device *dev)
> {
> struct dw_mci *host = dev_get_drvdata(dev);
>
> - dw_mci_exynos_priv_init(host);
> + dw_mci_exynos_priv_init(host, false);
> return dw_mci_resume(host);
> }
>
> diff --git a/drivers/mmc/host/dw_mmc-rockchip.c b/drivers/mmc/host/dw_mmc-rockchip.c
> index 9934503..885c801 100644
> --- a/drivers/mmc/host/dw_mmc-rockchip.c
> +++ b/drivers/mmc/host/dw_mmc-rockchip.c
> @@ -221,7 +221,7 @@ static int dw_mci_rk3288_parse_dt(struct dw_mci *host)
> return 0;
> }
>
> -static int dw_mci_rockchip_init(struct dw_mci *host)
> +static int dw_mci_rockchip_init(struct dw_mci *host, bool setup_clk)
> {
> /* It is slot 8 on Rockchip SoCs */
> host->sdio_id0 = 8;
> diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
> index 7128351..1d27a2b 100644
> --- a/drivers/mmc/host/dw_mmc.c
> +++ b/drivers/mmc/host/dw_mmc.c
> @@ -2995,7 +2995,7 @@ int dw_mci_probe(struct dw_mci *host)
> }
>
> if (drv_data && drv_data->init) {
> - ret = drv_data->init(host);
> + ret = drv_data->init(host, true);
> if (ret) {
> dev_err(host->dev,
> "implementation specific init failed\n");
> diff --git a/drivers/mmc/host/dw_mmc.h b/drivers/mmc/host/dw_mmc.h
> index f695b58..1a9492e 100644
> --- a/drivers/mmc/host/dw_mmc.h
> +++ b/drivers/mmc/host/dw_mmc.h
> @@ -285,7 +285,7 @@ struct dw_mci_slot {
> */
> struct dw_mci_drv_data {
> unsigned long *caps;
> - int (*init)(struct dw_mci *host);
> + int (*init)(struct dw_mci *host, bool setup_clk);
> int (*setup_clock)(struct dw_mci *host);
> void (*prepare_command)(struct dw_mci *host, u32 *cmdr);
> void (*set_ios)(struct dw_mci *host, struct mmc_ios *ios);
>