Commit 951b8c87 authored Jul 06, 2015 by Ivan T. Ivanov Committed by Ulf Hansson Aug 17, 2015

mmc: sdhci-msm: Boost controller core clock



Ensure SDCC is working with maximum clock otherwise card
detection could be extremely slow, up to 7 seconds.

Signed-off-by: Ivan T. Ivanov <ivan.ivanov@linaro.org>
Reviewed-by: Georgi Djakov <georgi.djakov@linaro.org>
Acked-by: Stephen Boyd <sboyd@codeaurora.org>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>

parent 829b6962

drivers/mmc/host/sdhci-msm.c

+5 −0

Original line number	Diff line number	Diff line
		@@ -489,6 +489,11 @@ static int sdhci_msm_probe(struct platform_device *pdev)
		goto pclk_disable;
		}

		/* Vote for maximum clock rate for maximum performance */
		ret = clk_set_rate(msm_host->clk, INT_MAX);
		if (ret)
		dev_warn(&pdev->dev, "core clock boost failed\n");

		ret = clk_prepare_enable(msm_host->clk);
		if (ret)
		goto pclk_disable;