Linux Renesas SOC kernel development
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From: Wolfram Sang <wsa@the-dreams.de>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Ulf Hansson <ulf.hansson@linaro.org>,
	Ben Hutchings <ben.hutchings@codethink.co.uk>,
	Simon Horman <horms@verge.net.au>,
	Linux MMC List <linux-mmc@vger.kernel.org>,
	Linux-Renesas <linux-renesas-soc@vger.kernel.org>
Subject: Re: [PATCH v2 3/9] mmc: tmio: Add UHS-I mode support
Date: Thu, 18 Aug 2016 20:41:40 +0200	[thread overview]
Message-ID: <20160818184139.GA1472@tetsubishi> (raw)
In-Reply-To: <CAMuHMdV31WewDgV8c6gGdssSvXO4sX2hCcV3w6SMxD-eyUc9Cw@mail.gmail.com>

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> I'll try to remove it. Note that sh73a0-kzm9g.dts also uses broken-cd,
> without ill effects.

This one does have a seperate card-detect-irq (which is not populated
for sdhi2) while the other one only has one, generic irq. That's at
least a difference.

We could try to see if there are unexpected card-detect events by
instrumenting mmc_detect_change() in tmio_mmc_pio.c, but my feeling is
that the card_busy change you reverted is only making something visible
which went wrong before the change, also.

So, it might be worth to protect the whole voltage_switch and card_busy
functionality with TMIO_MMC_MIN_RCAR2?


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  reply	other threads:[~2016-08-19  2:32 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1459525479-20842-1-git-send-email-wsa@the-dreams.de>
     [not found] ` <1459525479-20842-3-git-send-email-wsa@the-dreams.de>
     [not found]   ` <CAMuHMdWdJ2AoCrwC5K2QEfuf=w=q8=XnJRzoyg99EurJBDwbTg@mail.gmail.com>
     [not found]     ` <1460477978.32355.14.camel@codethink.co.uk>
     [not found]       ` <20160415202803.GA3105@katana>
     [not found]         ` <20160415204156.GB3105@katana>
2016-04-26 10:18           ` [PATCH v2 2/9] mmc: tmio, sh_mobile_sdhi: Add support for variable input clock frequency Geert Uytterhoeven
2016-04-26 17:00             ` Wolfram Sang
     [not found] ` <1459525479-20842-4-git-send-email-wsa@the-dreams.de>
2016-08-16 18:05   ` [PATCH v2 3/9] mmc: tmio: Add UHS-I mode support Geert Uytterhoeven
2016-08-16 19:55     ` Wolfram Sang
2016-08-16 20:21       ` Geert Uytterhoeven
2016-08-17 19:08     ` Wolfram Sang
2016-08-17 20:17       ` Geert Uytterhoeven
2016-08-18 18:41         ` Wolfram Sang [this message]
2016-08-23 12:34       ` Geert Uytterhoeven

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