Define callback (platform_hw_clk_gate) that is called when H/W clock gating is enabled. 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 and implementing the callback. Signed-off-by: Philip Rakity <[email protected]> --- 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 92be22d..611322c 100644 --- a/drivers/mmc/host/sdhci.c +++ b/drivers/mmc/host/sdhci.c @@ -1235,6 +1235,12 @@ 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 580a8ff..8e271df 100644 --- a/drivers/mmc/host/sdhci.h +++ b/drivers/mmc/host/sdhci.h @@ -246,6 +246,7 @@ struct sdhci_ops { void (*platform_specific_delay)(struct sdhci_host *host); unsigned int (*set_signaling_voltage)(struct sdhci_host *host, unsigned int ddr); + void (*platform_hw_clk_gate)(struct sdhci_host *host); }; #ifdef CONFIG_MMC_SDHCI_IO_ACCESSORS -- 1.7.0.4 -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
