From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yangbo Lu Subject: [v3, 5/7] mmc: sdhci-of-esdhc: add delay between tuning cycles Date: Mon, 27 Mar 2017 15:49:40 +0800 Message-ID: <1490600982-5410-6-git-send-email-yangbo.lu@nxp.com> References: <1490600982-5410-1-git-send-email-yangbo.lu@nxp.com> Mime-Version: 1.0 Content-Type: text/plain Return-path: In-Reply-To: <1490600982-5410-1-git-send-email-yangbo.lu@nxp.com> Sender: linux-mmc-owner@vger.kernel.org To: linux-mmc@vger.kernel.org, devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org, ulf.hansson@linaro.org, Adrian Hunter , Rob Herring , Mark Rutland , Catalin Marinas , Will Deacon Cc: Xiaobo Xie , Yangbo Lu List-Id: devicetree@vger.kernel.org It's observed that eSDHC needed delay between tuning cycles for HS200 successful tuning. This patch is to set 1ms delay for that. Signed-off-by: Yangbo Lu --- Changes for v2: - None Changes for v3: - Used a host member for tuning delay instead of a quirk. --- drivers/mmc/host/sdhci-of-esdhc.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c index 8c8e147..0754ef4 100644 --- a/drivers/mmc/host/sdhci-of-esdhc.c +++ b/drivers/mmc/host/sdhci-of-esdhc.c @@ -807,6 +807,7 @@ static int sdhci_esdhc_probe(struct platform_device *pdev) host->mmc_host_ops.start_signal_voltage_switch = esdhc_signal_voltage_switch; host->mmc_host_ops.execute_tuning = esdhc_execute_tuning; + host->tuning_delay = 1; esdhc_init(pdev, host); -- 2.1.0.27.g96db324