mmc: core: Export card RCA register via sysfs
This patch exports RCA register to sysfs which will help in reading the
disk identification information.
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Harish Jenny K N <harish_kandiga@mentor.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
diff --git a/drivers/mmc/core/sd.c b/drivers/mmc/core/sd.c
index 329e600..baf3d5d 100644
--- a/drivers/mmc/core/sd.c
+++ b/drivers/mmc/core/sd.c
@@ -668,6 +668,7 @@ 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, "0x%08x\n", card->ocr);
+MMC_DEV_ATTR(rca, "0x%04x\n", card->rca);
static ssize_t mmc_dsr_show(struct device *dev,
@@ -701,6 +702,7 @@ static struct attribute *sd_std_attrs[] = {
&dev_attr_oemid.attr,
&dev_attr_serial.attr,
&dev_attr_ocr.attr,
+ &dev_attr_rca.attr,
&dev_attr_dsr.attr,
NULL,
};