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Commit 6825a606 authored by Bojan Prtvar's avatar Bojan Prtvar Committed by Ulf Hansson
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mmc: core: Extend sysfs with DSR register



Export DSR register through sysfs same as we did for the CID, CSD and
OCR registers.

Signed-off-by: default avatarBojan Prtvar <prtvar.b@gmail.com>
Signed-off-by: default avatarUlf Hansson <ulf.hansson@linaro.org>
parent 2c4c7146
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+1 −0
Original line number Diff line number Diff line
@@ -29,6 +29,7 @@ All attributes are read-only.
	raw_rpmb_size_mult	RPMB partition size
	rel_sectors		Reliable write sector count
	ocr 			Operation Conditions Register
	dsr			Driver Stage Register

Note on Erase Size and Preferred Erase Size:

+17 −0
Original line number Diff line number Diff line
@@ -767,6 +767,22 @@ static ssize_t mmc_fwrev_show(struct device *dev,

static DEVICE_ATTR(fwrev, S_IRUGO, mmc_fwrev_show, NULL);

static ssize_t mmc_dsr_show(struct device *dev,
			    struct device_attribute *attr,
			    char *buf)
{
	struct mmc_card *card = mmc_dev_to_card(dev);
	struct mmc_host *host = card->host;

	if (card->csd.dsr_imp && host->dsr_req)
		return sprintf(buf, "0x%x\n", host->dsr);
	else
		/* return default DSR value */
		return sprintf(buf, "0x%x\n", 0x404);
}

static DEVICE_ATTR(dsr, S_IRUGO, mmc_dsr_show, NULL);

static struct attribute *mmc_std_attrs[] = {
	&dev_attr_cid.attr,
	&dev_attr_csd.attr,
@@ -786,6 +802,7 @@ static struct attribute *mmc_std_attrs[] = {
	&dev_attr_raw_rpmb_size_mult.attr,
	&dev_attr_rel_sectors.attr,
	&dev_attr_ocr.attr,
	&dev_attr_dsr.attr,
	NULL,
};
ATTRIBUTE_GROUPS(mmc_std);
+17 −0
Original line number Diff line number Diff line
@@ -678,6 +678,22 @@ MMC_DEV_ATTR(serial, "0x%08x\n", card->cid.serial);
MMC_DEV_ATTR(ocr, "%08x\n", card->ocr);


static ssize_t mmc_dsr_show(struct device *dev,
                           struct device_attribute *attr,
                           char *buf)
{
       struct mmc_card *card = mmc_dev_to_card(dev);
       struct mmc_host *host = card->host;

       if (card->csd.dsr_imp && host->dsr_req)
               return sprintf(buf, "0x%x\n", host->dsr);
       else
               /* return default DSR value */
               return sprintf(buf, "0x%x\n", 0x404);
}

static DEVICE_ATTR(dsr, S_IRUGO, mmc_dsr_show, NULL);

static struct attribute *sd_std_attrs[] = {
	&dev_attr_cid.attr,
	&dev_attr_csd.attr,
@@ -692,6 +708,7 @@ static struct attribute *sd_std_attrs[] = {
	&dev_attr_oemid.attr,
	&dev_attr_serial.attr,
	&dev_attr_ocr.attr,
	&dev_attr_dsr.attr,
	NULL,
};
ATTRIBUTE_GROUPS(sd_std);