From: Jin Qian <jinqian@android.com>
To: Ulf Hansson <ulf.hansson@linaro.org>,
Jin Qian <jinqian@google.com>,
Shawn Lin <shawn.lin@rock-chips.com>,
Adrian Hunter <adrian.hunter@intel.com>,
Linus Walleij <linus.walleij@linaro.org>,
Jaehoon Chung <jh80.chung@samsung.com>,
Uri Yanai <uri.yanai@sandisk.com>,
Chanho Min <chanho.min@lge.com>,
Jungseung Lee <js07.lee@samsung.com>,
linux-kernel@vger.kernel.org, linux-mmc@vger.kernel.org
Cc: Jin Qian <jinqian@android.com>
Subject: [PATCHv3 1/1] mmc: core: export emmc revision
Date: Thu, 12 Oct 2017 10:46:59 -0700 [thread overview]
Message-ID: <20171012174703.44680-1-jinqian@android.com> (raw)
From: Jin Qian <jinqian@google.com>
Expose emmc revision as part of device attributes.
Signed-off-by: Jin Qian <jinqian@android.com>
---
Documentation/ABI/testing/sysfs-bus-mmc | 4 ++++
drivers/mmc/core/mmc.c | 2 ++
2 files changed, 6 insertions(+)
create mode 100644 Documentation/ABI/testing/sysfs-bus-mmc
diff --git a/Documentation/ABI/testing/sysfs-bus-mmc b/Documentation/ABI/testing/sysfs-bus-mmc
new file mode 100644
index 000000000000..519f028d19cc
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-bus-mmc
@@ -0,0 +1,4 @@
+What: /sys/bus/mmc/devices/.../rev
+Date: October 2017
+Contact: Jin Qian <jinqian@android.com>
+Description: Extended CSD revision number
diff --git a/drivers/mmc/core/mmc.c b/drivers/mmc/core/mmc.c
index 36217ad5e9b1..4aa4cfb2c9e1 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -780,6 +780,7 @@ 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,
@@ -838,6 +839,7 @@ 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,
--
2.15.0.rc0.271.g36b669edcc-goog
next reply other threads:[~2017-10-12 17:47 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-10-12 17:46 Jin Qian [this message]
2017-10-13 6:57 ` [PATCHv3 1/1] mmc: core: export emmc revision Jisheng Zhang
2017-10-13 12:38 ` Linus Walleij
2017-10-20 10:02 ` Ulf Hansson
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