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[PATCH 3/4] mmc: mmc: enable ios.enhanced_strobe before mmc_set_timing

From Ritesh Harjani <riteshh@codeaurora.org>
Newsgroups linux.kernel
Subject [PATCH 3/4] mmc: mmc: enable ios.enhanced_strobe before mmc_set_timing
Date 2016-12-20 07:00 +0100
Message-ID <sQlCV-1sf-25@gated-at.bofh.it> (permalink)
References <sQlCV-1sf-15@gated-at.bofh.it>
Organization linux.* mail to news gateway

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Some controllers may need to configure few registers based on enhanced
strobe mode while configuring to HS400 timing, thus make
ios.enhanced_strobe to true before mmc_set_timing in mmc_select_hs400es.

Signed-off-by: Ritesh Harjani <riteshh@codeaurora.org>
---
 drivers/mmc/core/mmc.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index eb69497..052368e 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -1327,12 +1327,18 @@ static int mmc_select_hs400es(struct mmc_card *card)
 		goto out_err;
 	}
 
+	/*
+	 * Enable enhanced_strobe in ios, as some controllers
+	 * may need to configure few registers based on enhanced
+	 * strobe while changing HS400 timing.
+	 */
+	host->ios.enhanced_strobe = true;
+
 	/* Set host controller to HS400 timing and frequency */
 	mmc_set_timing(host, MMC_TIMING_MMC_HS400);
 	mmc_set_bus_speed(card);
 
 	/* Controller enable enhanced strobe function */
-	host->ios.enhanced_strobe = true;
 	if (host->ops->hs400_enhanced_strobe)
 		host->ops->hs400_enhanced_strobe(host, &host->ios);
 
-- 
The Qualcomm Innovation Center, Inc. is a member of Code Aurora Forum, 
a Linux Foundation Collaborative Project.

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Thread

[PATCH 3/4] mmc: mmc: enable ios.enhanced_strobe before mmc_set_timing Ritesh Harjani <riteshh@codeaurora.org> - 2016-12-20 07:00 +0100
  Re: [PATCH 3/4] mmc: mmc: enable ios.enhanced_strobe before  mmc_set_timing Ritesh Harjani <riteshh@codeaurora.org> - 2016-12-23 10:30 +0100
    Re: [PATCH 3/4] mmc: mmc: enable ios.enhanced_strobe before  mmc_set_timing Shawn Lin <shawn.lin@rock-chips.com> - 2016-12-26 08:20 +0100

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