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Commit 06d2c8c8 authored by Veerabhadrarao Badiganti's avatar Veerabhadrarao Badiganti
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mmc: sdhci-msm: Don't enable PWRSAVE_DLL for all latest sdhc hosts 



SDHC core with 14lpp tech DLL should not enable PWRSAVE_DLL since
such controller's internal gating cannot meet following MCLK requirement:
when MCLK is gated OFF, it is not gated for less than 0.5us and MCLK must
be switched on for at-least 1us before DATA starts coming.

Since all the latest versions of sdhc host has this 14lpp tech DLL
Don't set PWRSAVE_DLL bit accordingly.

Change-Id: I7cccc79a79b32a33e74212fc5f41408c2e07b5cb
Signed-off-by: default avatarVeerabhadrarao Badiganti <vbadigan@codeaurora.org>
parent 6b495d4a

drivers/mmc/host/sdhci-msm.c

+1 −1
Original line number Diff line number Diff line
@@ -4197,7 +4197,7 @@ static void sdhci_set_default_hw_caps(struct sdhci_msm_host *msm_host, 
	 * starts coming.

	 */

	if ((major == 1) && ((minor == 0x42) || (minor == 0x46) ||

				(minor == 0x49)))

				(minor == 0x49) || (minor >= 0x6b)))

		msm_host->use_14lpp_dll = true;



	/* Fake 3.0V support for SDIO devices which requires such voltage */