linux-kernel - Re: [PATCH] mmc: core: Extend sysfs with OCR register

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Date:	Wed, 6 Jul 2016 18:21:25 +0200
From:	Ulf Hansson <ulf.hansson@...aro.org>
To:	Bojan Prtvar <prtvar.b@...il.com>
Cc:	linux-mmc <linux-mmc@...r.kernel.org>,
	Jonathan Corbet <corbet@....net>,
	Linus Walleij <linus.walleij@...aro.org>,
	Adrian Hunter <adrian.hunter@...el.com>,
	Dong Aisheng <aisheng.dong@....com>,
	Wolfram Sang <wsa+renesas@...g-engineering.com>,
	Gwendal Grignou <gwendal@...omium.org>,
	Chaotian Jing <chaotian.jing@...iatek.com>,
	"linux-doc@...r.kernel.org" <linux-doc@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] mmc: core: Extend sysfs with OCR register

On 4 July 2016 at 13:56, Bojan Prtvar <prtvar.b@...il.com> wrote:
> Make operation conditions register (OCR) easily accessible from user space.
>
> Signed-off-by: Bojan Prtvar <prtvar.b@...il.com>

Thanks, applied for next! Amended the changelog with the explanation
why this change is wanted.

Kind regards
Uffe

> ---
>  Documentation/mmc/mmc-dev-attrs.txt | 1 +
>  drivers/mmc/core/mmc.c              | 2 ++
>  2 files changed, 3 insertions(+)
>
> diff --git a/Documentation/mmc/mmc-dev-attrs.txt b/Documentation/mmc/mmc-dev-attrs.txt
> index caa5557..8163eca 100644
> --- a/Documentation/mmc/mmc-dev-attrs.txt
> +++ b/Documentation/mmc/mmc-dev-attrs.txt
> @@ -28,6 +28,7 @@ All attributes are read-only.
>         preferred_erase_size    Preferred erase size
>         raw_rpmb_size_mult      RPMB partition size
>         rel_sectors             Reliable write sector count
> +       ocr                     Operation Conditions Register
>
>  Note on Erase Size and Preferred Erase Size:
>
> diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
> index 5d438ad..1848334 100644
> --- a/drivers/mmc/core/mmc.c
> +++ b/drivers/mmc/core/mmc.c
> @@ -727,6 +727,7 @@ MMC_DEV_ATTR(enhanced_area_offset, "%llu\n",
>  MMC_DEV_ATTR(enhanced_area_size, "%u\n", card->ext_csd.enhanced_area_size);
>  MMC_DEV_ATTR(raw_rpmb_size_mult, "%#x\n", card->ext_csd.raw_rpmb_size_mult);
>  MMC_DEV_ATTR(rel_sectors, "%#x\n", card->ext_csd.rel_sectors);
> +MMC_DEV_ATTR(ocr, "%08x\n", card->ocr);
>
>  static ssize_t mmc_fwrev_show(struct device *dev,
>                               struct device_attribute *attr,
> @@ -762,6 +763,7 @@ static struct attribute *mmc_std_attrs[] = {
>         &dev_attr_enhanced_area_size.attr,
>         &dev_attr_raw_rpmb_size_mult.attr,
>         &dev_attr_rel_sectors.attr,
> +       &dev_attr_ocr.attr,
>         NULL,
>  };
>  ATTRIBUTE_GROUPS(mmc_std);
> --
> 2.8.0.GIT
>