From: jlu@pengutronix.de (Jan Lübbe)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 2/6] mmc: sdhci-esdhc-imx: add tuning-step seting support
Date: Thu, 30 Jul 2015 18:25:06 +0200 [thread overview]
Message-ID: <1438273506.26075.2.camel@pengutronix.de> (raw)
In-Reply-To: <1438160637-28061-3-git-send-email-haibo.chen@freescale.com>
On Mi, 2015-07-29 at 17:03 +0800, Haibo Chen wrote:
> tuning-step is the delay cell steps in tuning procedure. The default
> value of tuning-step is 1. For imx6 series usdhc, tuning procedure can
> be passed when the tuning-step value is 1. But imx7d usdhc need the
> tuning-step value as 2, otherwise it can't pass the tuning procedure.
>
> So this patch add the tuning-step setting in driver, so that user can
> set the tuning-step value in dts.
>From your description, the correct tuning-step value only depends on the
SoC. Why not derive it from the compatible string?
Regards,
Jan L?bbe
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next prev parent reply other threads:[~2015-07-30 16:25 UTC|newest]
Thread overview: 27+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-07-29 9:03 [PATCH v3 0/6] mmc: imx: a few fixes and new feature Haibo Chen
2015-07-29 9:03 ` [PATCH v3 1/6] mmc: sdhci-esdhc-imx: add imx7d support and support HS400 Haibo Chen
2015-07-31 14:15 ` Dong Aisheng
2015-08-02 8:59 ` Chen Bough
2015-08-03 12:09 ` Dong Aisheng
2015-08-05 7:39 ` Chen Bough
2015-08-05 7:53 ` Dong Aisheng
2015-08-04 3:25 ` Dong Aisheng
2015-07-29 9:03 ` [PATCH v3 2/6] mmc: sdhci-esdhc-imx: add tuning-step seting support Haibo Chen
2015-07-30 16:25 ` Jan Lübbe [this message]
2015-07-31 4:41 ` Dong Aisheng
2015-07-29 9:03 ` [PATCH v3 3/6] ARM: dts: imx7d-sdb: add eMMC5.0 support Haibo Chen
2015-07-31 14:46 ` Dong Aisheng
2015-07-29 9:03 ` [PATCH v3 4/6] mmc: sdhci-esdhc-imx: add compatible string in bingding doc Haibo Chen
2015-07-31 14:43 ` Dong Aisheng
2015-08-02 9:02 ` Chen Bough
2015-07-29 9:03 ` [PATCH v3 5/6] mmc: sdhci-esdhc-imx: config watermark level and burst length Haibo Chen
2015-07-31 14:51 ` Dong Aisheng
2015-07-31 15:13 ` Russell King - ARM Linux
2015-08-03 10:14 ` Dong Aisheng
2015-07-31 14:55 ` Dong Aisheng
2015-07-29 9:03 ` [PATCH v3 6/6] mmc: sdhci-esdhc-imx: set back the burst_length_enable bit to 1 Haibo Chen
2015-07-31 14:57 ` Dong Aisheng
2015-08-03 1:08 ` Chen Bough
2015-08-03 12:12 ` Dong Aisheng
2015-07-29 9:10 ` [PATCH v3 0/6] mmc: imx: a few fixes and new feature Dong Aisheng
2015-07-30 9:44 ` Holger Schurig
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