linux-kernel - [PATCHv2 1/1] mmc: core: export emmc revision via sysfs

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Message-Id: <20170323001849.20332-1-jinqian@android.com>
Date:   Wed, 22 Mar 2017 17:18:45 -0700
From:   Jin Qian <jinqian@...roid.com>
To:     Ulf Hansson <ulf.hansson@...aro.org>,
        Shawn Lin <shawn.lin@...k-chips.com>,
        Adrian Hunter <adrian.hunter@...el.com>,
        Jaehoon Chung <jh80.chung@...sung.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Masahiro Yamada <yamada.masahiro@...ionext.com>,
        Uri Yanai <uri.yanai@...disk.com>,
        Chaotian Jing <chaotian.jing@...iatek.com>,
        Pratibhasagar V <pratibha@...eaurora.org>,
        Gwendal Grignou <gwendal@...omium.org>,
        Dong Aisheng <aisheng.dong@....com>, linux-mmc@...r.kernel.org,
        linux-kernel@...r.kernel.org
Cc:     Jin Qian <jinqian@...roid.com>
Subject: [PATCHv2 1/1] mmc: core: export emmc revision via sysfs

Extend sysfs to access ext_csd revision information.

Signed-off-by: Jin Qian <jinqian@...roid.com>
---
 drivers/mmc/core/mmc.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 7fd722868875..08c62c9bec48 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -779,6 +779,7 @@ MMC_DEV_ATTR(manfid, "0x%06x\n", card->cid.manfid);
 MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
 MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid);
 MMC_DEV_ATTR(prv, "0x%x\n", card->cid.prv);
+MMC_DEV_ATTR(rev, "0x%x\n", card->ext_csd.rev);
 MMC_DEV_ATTR(pre_eol_info, "%02x\n", card->ext_csd.pre_eol_info);
 MMC_DEV_ATTR(life_time, "0x%02x 0x%02x\n",
 	card->ext_csd.device_life_time_est_typ_a,
@@ -836,6 +837,7 @@ static struct attribute *mmc_std_attrs[] = {
 	&dev_attr_name.attr,
 	&dev_attr_oemid.attr,
 	&dev_attr_prv.attr,
+	&dev_attr_rev.attr,
 	&dev_attr_pre_eol_info.attr,
 	&dev_attr_life_time.attr,
 	&dev_attr_serial.attr,
-- 
2.12.1.500.gab5fba24ee-goog