path: root/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
diff options
authorChris Ball <cjb@laptop.org>2012-06-11 21:48:16 -0400
committerChris Ball <cjb@laptop.org>2012-07-10 23:04:06 -0400
commit4efafee02ff604627234d42a3ff9f331e3605c9d (patch)
treea82b8546aaac5e090c99c15b2f93a8170b8871b0 /Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
parent45a6b32e24003d9749d8c6d1c83dfb64d6994ca7 (diff)
mmc: dt: Deduplicate binding docs by referencing mmc.txt
Now that we have common bindings for MMC, rewrite the individual bindings to inherit from mmc.txt and describe their differences. Acked-by: Stephen Warren <swarren@wwwdotorg.org> Acked-by: Arnd Bergmann <arnd@arndb.de> Signed-off-by: Chris Ball <cjb@laptop.org>
Diffstat (limited to 'Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt')
1 files changed, 3 insertions, 4 deletions
diff --git a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
index 8a53958c9a9..be76a23b34c 100644
--- a/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
+++ b/Documentation/devicetree/bindings/mmc/ti-omap-hsmmc.txt
@@ -3,21 +3,20 @@
The Highspeed MMC Host Controller on TI OMAP family
provides an interface for MMC, SD, and SDIO types of memory cards.
+This file documents differences between the core properties described
+by mmc.txt and the properties used by the omap_hsmmc driver.
Required properties:
- compatible:
Should be "ti,omap2-hsmmc", for OMAP2 controllers
Should be "ti,omap3-hsmmc", for OMAP3 controllers
Should be "ti,omap4-hsmmc", for OMAP4 controllers
- ti,hwmods: Must be "mmc<n>", n is controller instance starting 1
-- reg : should contain hsmmc registers location and length
Optional properties:
ti,dual-volt: boolean, supports dual voltage cards
<supply-name>-supply: phandle to the regulator device tree node
"supply-name" examples are "vmmc", "vmmc_aux" etc
-bus-width: Number of data lines, default assumed is 1 if the property is missing.
-cd-gpios: GPIOs for card detection
-wp-gpios: GPIOs for write protection
ti,non-removable: non-removable slot (like eMMC)
ti,needs-special-reset: Requires a special softreset sequence