mmc: core: Extend sysfs with OCR register
Registers CID and CSD are already exported through sysfs so let's make
this interface complete by adding missing OCR register.
Signed-off-by: Bojan Prtvar <prtvar.b@gmail.com>
Reviewed-by: Wolfram Sang <wsa@the-dreams.de>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
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 @@
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 5485040..403b97b 100644
--- a/drivers/mmc/core/mmc.c
+++ b/drivers/mmc/core/mmc.c
@@ -749,6 +749,7 @@
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,
@@ -784,6 +785,7 @@
&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);
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index b95bd24..3dd0861 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -675,6 +675,7 @@
MMC_DEV_ATTR(name, "%s\n", card->cid.prod_name);
MMC_DEV_ATTR(oemid, "0x%04x\n", card->cid.oemid);
MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial);
+MMC_DEV_ATTR(ocr, "%08x\n", card->ocr);
static struct attribute *sd_std_attrs[] = {
@@ -690,6 +691,7 @@
&dev_attr_name.attr,
&dev_attr_oemid.attr,
&dev_attr_serial.attr,
+ &dev_attr_ocr.attr,
NULL,
};
ATTRIBUTE_GROUPS(sd_std);