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mmc: core: Add in support to expose PRV for v4 MMCs

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The JEDEC MMC v4 spec defines a new PRV value in place of the original
fwrev and hwrev specified in v1. We can expose this in the kernel to enable
user space to more easily determine the product revision of a given MMC.

Signed-off-by: Bernie Thompson <bhthompson@chromium.org>
Reviewed-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <cjb@laptop.org>
This commit is contained in:
Bernie Thompson
2013-02-27 12:19:17 -08:00
committed by Chris Ball
parent e3e020f8ac
commit 51e7e8b632
3 changed files with 5 additions and 0 deletions
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include/linux/mmc/card.h
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@@ -17,6 +17,7 @@
struct mmc_cid {
unsigned int manfid;
char prod_name[8];
unsigned char prv;
unsigned int serial;
unsigned short oemid;
unsigned short year;