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From: Jisheng Zhang <jszhang@marvell.com>
To: Krzysztof Kozlowski <k.kozlowski@samsung.com>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Adrian Hunter <adrian.hunter@intel.com>,
	<ludovic.desroches@atmel.com>
Cc: "Ivan T. Ivanov" <ivan.ivanov@linaro.org>,
	<linux-mmc@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
	<linux-samsung-soc@vger.kernel.org>,
	"Jaehoon Chung" <jh80.chung@samsung.com>
Subject: Re: Warnings for invalid VDD (sdhci-s3c)
Date: Thu, 24 Mar 2016 15:58:40 +0800	[thread overview]
Message-ID: <20160324155840.50474b98@xhacker> (raw)
In-Reply-To: <CAJKOXPcGDnPm-Ykh6wHqV1YxfTaov5E8iVqBoBn4OJc7BnhgEQ@mail.gmail.com>

Hi,

On Thu, 24 Mar 2016 16:28:56 +0900 Krzysztof Kozlowski wrote:

> Hi,
> 
> After 918f4cbd4340 ("mmc: sdhci: restore behavior when setting VDD via
> external regulator") On Trats2 board I see warnings for invalid VDD
> value (2.8V):
> 
> [    3.119656] ------------[ cut here ]------------
> [    3.119666] WARNING: CPU: 3 PID: 90 at
> ../drivers/mmc/host/sdhci.c:1234 sdhci_do_set_ios+0x4cc/0x5e0
> [    3.119669] mmc0: Invalid vdd 0x10

Per my understanding, the wrong vdd indicates a wrong ocr, what's the voltage of
this host's vmmc regulator?

Thanks,
Jisheng

  reply	other threads:[~2016-03-24  8:02 UTC|newest]

Thread overview: 25+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2016-03-24  7:28 Warnings for invalid VDD (sdhci-s3c) Krzysztof Kozlowski
2016-03-24  7:58 ` Jisheng Zhang [this message]
2016-03-24  8:09   ` Jaehoon Chung
2016-03-24  8:24     ` Jisheng Zhang
2016-03-24  8:42       ` Krzysztof Kozlowski
2016-03-24 13:11         ` Adrian Hunter
2016-03-24 13:21           ` Adrian Hunter
2016-03-24 13:45             ` Jisheng Zhang
2016-03-24 14:27               ` Ludovic Desroches
2016-03-28  6:07             ` Krzysztof Kozlowski
2016-03-29  9:39               ` Adrian Hunter
2016-03-29  9:45                 ` [PATCH V3] mmc: sdhci: Fix regression setting power on Trats2 board Adrian Hunter
2016-03-29 10:00                   ` Jisheng Zhang
2016-03-29 10:02                   ` Jaehoon Chung
2016-03-29 10:25                   ` Anand Moon
2016-03-29 10:47                   ` Ulf Hansson
2016-03-24 13:31           ` Warnings for invalid VDD (sdhci-s3c) Markus Reichl
2016-03-24 14:03           ` Ludovic Desroches
2016-03-24 14:34             ` Adrian Hunter
2016-03-27  7:41               ` Anand Moon
2016-03-28  5:33                 ` Krzysztof Kozlowski
2016-03-28 11:39                   ` Anand Moon
2016-03-29  7:59                     ` Adrian Hunter
2016-03-29 10:05                       ` Anand Moon
2016-03-24 13:30 ` Tobias Jakobi

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