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Commit 5fb06af7 authored by Bojan Prtvar's avatar Bojan Prtvar Committed by Ulf Hansson
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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: default avatarBojan Prtvar <prtvar.b@gmail.com>
Reviewed-by: default avatarWolfram Sang <wsa@the-dreams.de>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 1883edd1

Documentation/mmc/mmc-dev-attrs.txt

+1 −0
Original line number Diff line number Diff line
@@ -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:

drivers/mmc/core/mmc.c

+2 −0
Original line number Diff line number Diff line
@@ -749,6 +749,7 @@ 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,
@@ -784,6 +785,7 @@ 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);

drivers/mmc/core/sd.c

+2 −0
Original line number Diff line number Diff line
@@ -675,6 +675,7 @@ 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(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 @@ static struct attribute *sd_std_attrs[] = { 
	&dev_attr_name.attr,

	&dev_attr_oemid.attr,

	&dev_attr_serial.attr,

	&dev_attr_ocr.attr,

	NULL,

};

ATTRIBUTE_GROUPS(sd_std);