Thread (9 messages) 9 messages, 2 authors, 2015-01-29
STALE4150d
Revisions (3)
  1. v1 [diff vs current]
  2. v2 current
  3. v3 [diff vs current]

[PATCH v2 3/6] mmc: pwrseq: Document optional clock for the simple power sequence

From: Javier Martinez Canillas <hidden>
Date: 2015-01-28 21:38:22
Also in: linux-devicetree, linux-mmc, linux-samsung-soc, lkml
Subsystem: multimedia card (mmc), secure digital (sd) and sdio subsystem, open firmware and flattened device tree bindings, the rest · Maintainers: Ulf Hansson, Rob Herring, Krzysztof Kozlowski, Conor Dooley, Linus Torvalds

Some WLAN chips attached to a SDIO interface, need an external clock
to be operational. Since this is very common, extend the simple MMC
power sequence DT binding to support an optional clock.

Signed-off-by: Javier Martinez Canillas <redacted>
---

Changes since v1: None.
---
 Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 4 ++++
 1 file changed, 4 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
index eaae652213ae..a462c50f19a8 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
@@ -12,6 +12,10 @@ Optional properties:
 	at initialization and prior we start the power up procedure of the card.
 	They will be de-asserted right after the power has been provided to the
 	card.
+- clocks : Must contain an entry for the entry in clock-names.
+  See ../clocks/clock-bindings.txt for details.
+- clock-names : Must include the following entry:
+  "ext_clock" (External clock provided to the card).
 
 Example:
 
-- 
2.1.3
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