From mboxrd@z Thu Jan  1 00:00:00 1970
From: Jisheng Zhang <jszhang@marvell.com>
Subject: Re: Warnings for invalid VDD (sdhci-s3c)
Date: Thu, 24 Mar 2016 15:58:40 +0800
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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>

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