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authorJin Qian <jinqian@google.com>2017-10-12 20:46:59 +0300
committerUlf Hansson <ulf.hansson@linaro.org>2017-10-30 13:46:04 +0300
commit04fa0540255ee5707a1addf4c7c2a5ba4ac2c407 (patch)
treed6033897bf88ad30d63057977b08b026d8ddb7f7
parent9ccfa81725b92f9aec78bfb3e6c3e2e3c903e701 (diff)
downloadlinux-04fa0540255ee5707a1addf4c7c2a5ba4ac2c407.tar.xz
mmc: core: export emmc revision
Expose emmc revision as part of device attributes. Signed-off-by: Jin Qian <jinqian@android.com> Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
-rw-r--r--Documentation/ABI/testing/sysfs-bus-mmc4
-rw-r--r--drivers/mmc/core/mmc.c2
2 files changed, 6 insertions, 0 deletions
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 44d67ee8bf7b..066efbb89483 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,