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Commit 6e0bd9c6 authored by Linux Build Service Account's avatar Linux Build Service Account Committed by Gerrit - the friendly Code Review server
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Merge "mmc: core: Update the logic of controlling clk scaling through sysfs"

parents 1ccabf65 4c2bdc58

drivers/mmc/core/host.c

+6 −6
Original line number Diff line number Diff line
@@ -653,19 +653,19 @@ static ssize_t store_enable(struct device *dev, 
	mmc_get_card(host->card);



	if (!value) {

		/*turning off clock scaling*/

		mmc_exit_clk_scaling(host);

		/* Suspend the clock scaling and mask host capability */

		if (host->clk_scaling.enable)

			mmc_suspend_clk_scaling(host);

		host->caps2 &= ~MMC_CAP2_CLK_SCALE;

		host->clk_scaling.state = MMC_LOAD_HIGH;

		/* Set to max. frequency when disabling */

		mmc_clk_update_freq(host, host->card->clk_scaling_highest,

					host->clk_scaling.state);

	} else if (value) {

		/* starting clock scaling, will restart in case started */

		/* Unmask host capability and resume scaling */

		host->caps2 |= MMC_CAP2_CLK_SCALE;

		if (host->clk_scaling.enable)

			mmc_exit_clk_scaling(host);

		mmc_init_clk_scaling(host);

		if (!host->clk_scaling.enable)

			mmc_resume_clk_scaling(host);

	}



	mmc_put_card(host->card);