Hi,
what's the difference between previous 2/3 patch?
Thank you,
Kyungmin Park
On Wed, Dec 8, 2010 at 2:56 AM, Philip Rakity <prakity@xxxxxxxxxxx> wrote:
>
> Define callback (platform_hw_clk_gate) that is called when H/W clock gating
> is defined. The adaptation layer is responsible for enabling hw clock
> gating by:
>
> a) setting mmc->caps |= MMC_CAP_HW_CLOCK_GATING to enable h/w gating
> b) defining the callback.
>
> This code tested in the Marvell Linux.
>
> Signed-off-by: Philip Rakity <prakity@xxxxxxxxxxx>
> Signed-off-by: Mark F. Brown <markb@xxxxxxxxxxx>
> ---
> drivers/mmc/host/sdhci.c | 6 ++++++
> drivers/mmc/host/sdhci.h | 1 +
> 2 files changed, 7 insertions(+), 0 deletions(-)
>
> diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
> index 8a74fcb..c2e7c9e 100644
> --- a/drivers/mmc/host/sdhci.c
> +++ b/drivers/mmc/host/sdhci.c
> @@ -1188,6 +1188,12 @@ static void sdhci_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
> if (host->ops->platform_send_init_74_clocks)
> host->ops->platform_send_init_74_clocks(host, ios->power_mode);
>
> +#ifdef CONFIG_MMC_CLKGATE
> + if ((mmc->caps & MMC_CAP_HW_CLOCK_GATING)
> + && host->ops->platform_hw_clk_gate)
> + host->ops->platform_hw_clk_gate(host);
> +#endif
> +
> /*
> * If your platform has 8-bit width support but is not a v3 controller,
> * or if it requires special setup code, you should implement that in
> diff --git a/drivers/mmc/host/sdhci.h b/drivers/mmc/host/sdhci.h
> index 1efe7dc..26a8c09 100644
> --- a/drivers/mmc/host/sdhci.h
> +++ b/drivers/mmc/host/sdhci.h
> @@ -221,6 +221,7 @@ struct sdhci_ops {
> void (*platform_send_init_74_clocks)(struct sdhci_host *host,
> u8 power_mode);
> unsigned int (*get_ro)(struct sdhci_host *host);
> + void (*platform_hw_clk_gate)(struct sdhci_host *host);
> };
>
> #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS
> --
> 1.6.0.4
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
> the body of a message to majordomo@xxxxxxxxxxxxxxx
> More majordomo info at http://vger.kernel.org/majordomo-info.html
>
--
To unsubscribe from this list: send the line "unsubscribe linux-mmc" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
