From: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
To: Ulf Hansson <ulf.hansson@linaro.org>
Cc: Kukjin Kim <kgene@kernel.org>,
Doug Anderson <dianders@chromium.org>,
Olof Johansson <olof@lixom.net>,
linux-samsung-soc@vger.kernel.org,
linux-arm-kernel@lists.infradead.org, linux-mmc@vger.kernel.org,
devicetree@vger.kernel.org, linux-kernel@vger.kernel.org,
Javier Martinez Canillas <javier.martinez@collabora.co.uk>
Subject: [PATCH 3/5] mmc: pwrseq: Document optional clock for the simple power sequence
Date: Wed, 28 Jan 2015 11:10:17 +0100 [thread overview]
Message-ID: <1422439819-29854-4-git-send-email-javier.martinez@collabora.co.uk> (raw)
In-Reply-To: <1422439819-29854-1-git-send-email-javier.martinez@collabora.co.uk>
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 <javier.martinez@collabora.co.uk>
---
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 9a77deb164c7..6b5c10d1144c 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
@@ -11,6 +11,10 @@ Optional properties:
- reset-gpios : contains a list of GPIO specifiers. The reset GPIOs are asserted
at initialization and prior we start the power up procedure of the card.
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
next prev parent reply other threads:[~2015-01-28 20:47 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-01-28 10:10 [PATCH 0/5] Add multiple GPIO and external clock to MMC pwrseq_simple Javier Martinez Canillas
2015-01-28 10:10 ` [PATCH 1/5] mmc: pwrseq: Document that simple sequence support more than one GPIO Javier Martinez Canillas
2015-01-28 16:34 ` Srinivas Kandagatla
2015-01-28 16:35 ` Javier Martinez Canillas
2015-01-28 10:10 ` [PATCH 2/5] mmc: pwrseq_simple: Extend to support more pins Javier Martinez Canillas
2015-01-28 14:01 ` Srinivas Kandagatla
2015-01-28 16:13 ` Javier Martinez Canillas
2015-01-28 16:31 ` Srinivas Kandagatla
2015-01-28 10:10 ` Javier Martinez Canillas [this message]
2015-01-28 10:10 ` [PATCH 4/5] mmc: pwrseq_simple: Add optional reference clock support Javier Martinez Canillas
2015-01-28 10:10 ` [PATCH 5/5] ARM: dts: exynos5250-snow: Enable wifi power-on Javier Martinez Canillas
2015-01-28 14:03 ` Arend van Spriel
2015-01-28 15:57 ` Javier Martinez Canillas
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