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From: Yangbo Lu <yangbo.lu@nxp.com>
To: linux-mmc@vger.kernel.org, ulf.hansson@linaro.org,
	Adrian Hunter <adrian.hunter@intel.com>,
	Rob Herring <robh+dt@kernel.org>,
	Mark Rutland <mark.rutland@arm.com>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Will Deacon <will.deacon@arm.com>
Cc: devicetree@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
	Xiaobo Xie <xiaobo.xie@nxp.com>, Yangbo Lu <yangbo.lu@nxp.com>
Subject: [v2, 5/7] mmc: sdhci-of-esdhc: add delay between tuning cycles
Date: Fri, 3 Mar 2017 16:18:47 +0800	[thread overview]
Message-ID: <1488529129-23560-6-git-send-email-yangbo.lu@nxp.com> (raw)
In-Reply-To: <1488529129-23560-1-git-send-email-yangbo.lu@nxp.com>

It's observed that eSDHC needed delay between tuning cycles for
HS200 successful tuning. This patch is to add the quirk
SDHCI_QUIRK2_DELAY_BETWEEN_TUNING_CYCLES to fix it.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
Changes for v2:
	- None
---
 drivers/mmc/host/sdhci-of-esdhc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 8007188..7c4d8e8 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -836,6 +836,8 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
 		host->quirks2 |= SDHCI_QUIRK2_BROKEN_HOST_CONTROL;
 	}
 
+	host->quirks2 |= SDHCI_QUIRK2_DELAY_BETWEEN_TUNING_CYCLES;
+
 	/* call to generic mmc_of_parse to support additional capabilities */
 	ret = mmc_of_parse(host->mmc);
 	if (ret)
-- 
2.1.0.27.g96db324


WARNING: multiple messages have this Message-ID (diff)
From: yangbo.lu@nxp.com (Yangbo Lu)
To: linux-arm-kernel@lists.infradead.org
Subject: [v2, 5/7] mmc: sdhci-of-esdhc: add delay between tuning cycles
Date: Fri, 3 Mar 2017 16:18:47 +0800	[thread overview]
Message-ID: <1488529129-23560-6-git-send-email-yangbo.lu@nxp.com> (raw)
In-Reply-To: <1488529129-23560-1-git-send-email-yangbo.lu@nxp.com>

It's observed that eSDHC needed delay between tuning cycles for
HS200 successful tuning. This patch is to add the quirk
SDHCI_QUIRK2_DELAY_BETWEEN_TUNING_CYCLES to fix it.

Signed-off-by: Yangbo Lu <yangbo.lu@nxp.com>
---
Changes for v2:
	- None
---
 drivers/mmc/host/sdhci-of-esdhc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 8007188..7c4d8e8 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -836,6 +836,8 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
 		host->quirks2 |= SDHCI_QUIRK2_BROKEN_HOST_CONTROL;
 	}
 
+	host->quirks2 |= SDHCI_QUIRK2_DELAY_BETWEEN_TUNING_CYCLES;
+
 	/* call to generic mmc_of_parse to support additional capabilities */
 	ret = mmc_of_parse(host->mmc);
 	if (ret)
-- 
2.1.0.27.g96db324

  parent reply	other threads:[~2017-03-03  8:18 UTC|newest]

Thread overview: 24+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-03-03  8:18 [v2, 0/7] Add SD UHS-I and eMMC HS200 support for eSDHC Yangbo Lu
2017-03-03  8:18 ` Yangbo Lu
2017-03-03  8:18 ` [v2, 1/7] mmc: sdhci-of-esdhc: add peripheral clock support Yangbo Lu
2017-03-03  8:18   ` Yangbo Lu
2017-03-03  8:18 ` [v2, 2/7] mmc: sdhci-of-esdhc: add support for signal voltage switch Yangbo Lu
2017-03-03  8:18   ` Yangbo Lu
     [not found] ` <1488529129-23560-1-git-send-email-yangbo.lu-3arQi8VN3Tc@public.gmane.org>
2017-03-03  8:18   ` [v2, 3/7] mmc: sdhci-of-esdhc: add tuning support Yangbo Lu
2017-03-03  8:18     ` Yangbo Lu
2017-03-03  8:18   ` [v2, 4/7] mmc: sdhci: add a quirk to restore delay in tuning Yangbo Lu
2017-03-03  8:18     ` Yangbo Lu
2017-03-23  7:03     ` Adrian Hunter
2017-03-23  7:03       ` Adrian Hunter
2017-03-27  8:05       ` Y.B. Lu
2017-03-27  8:05         ` Y.B. Lu
2017-03-03  8:18   ` [v2, 7/7] arm64: dts: ls1046ardb: add MMC HS200/UHS-1 modes support Yangbo Lu
2017-03-03  8:18     ` Yangbo Lu
2017-03-03  8:18 ` Yangbo Lu [this message]
2017-03-03  8:18   ` [v2, 5/7] mmc: sdhci-of-esdhc: add delay between tuning cycles Yangbo Lu
2017-03-03  8:18 ` [v2, 6/7] arm64: dts: ls1046a: add clocks property and compatible for eSDHC node Yangbo Lu
2017-03-03  8:18   ` Yangbo Lu
2017-03-09  2:22 ` [v2, 0/7] Add SD UHS-I and eMMC HS200 support for eSDHC Y.B. Lu
2017-03-09  2:22   ` Y.B. Lu
2017-03-17  3:01   ` Y.B. Lu
2017-03-17  3:01     ` Y.B. Lu

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