From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ritesh Harjani Subject: [PATCH 3/4] mmc: mmc: enable ios.enhanced_strobe before mmc_set_timing Date: Tue, 20 Dec 2016 11:23:18 +0530 Message-ID: <1482213199-29152-4-git-send-email-riteshh@codeaurora.org> References: <1482213199-29152-1-git-send-email-riteshh@codeaurora.org> Return-path: In-Reply-To: <1482213199-29152-1-git-send-email-riteshh@codeaurora.org> Sender: linux-mmc-owner@vger.kernel.org To: ulf.hansson@linaro.org, adrian.hunter@intel.com Cc: linux-mmc@vger.kernel.org, shawn.lin@rock-chips.com, linux-kernel@vger.kernel.org, stummala@codeaurora.org, georgi.djakov@linaro.org, linux-arm-msm@vger.kernel.org, pramod.gurav@linaro.org, jeremymc@redhat.com, venkatg@codeaurora.org, asutoshd@codeaurora.org, Ritesh Harjani List-Id: linux-arm-msm@vger.kernel.org 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 --- 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.