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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>,
	Arend van Spriel <arend@broadcom.com>,
	Srinivas Kandagatla <srinivas.kandagatla@linaro.org>,
	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 v3 3/6] mmc: pwrseq: Document optional clock for the simple power sequence
Date: Thu, 29 Jan 2015 16:00:05 +0100	[thread overview]
Message-ID: <1422543608-24704-4-git-send-email-javier.martinez@collabora.co.uk> (raw)
In-Reply-To: <1422543608-24704-1-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>
---

Changes since v2: None.

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


  parent reply	other threads:[~2015-01-29 15:00 UTC|newest]

Thread overview: 14+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-01-29 15:00 [PATCH v3 0/6] Add multiple GPIO and external clock to MMC pwrseq_simple Javier Martinez Canillas
2015-01-29 15:00 ` [PATCH v3 1/6] mmc: pwrseq: Document that simple sequence support more than one GPIO Javier Martinez Canillas
2015-01-29 15:00 ` [PATCH v3 2/6] mmc: pwrseq_simple: Extend to support more pins Javier Martinez Canillas
2015-01-29 15:00 ` Javier Martinez Canillas [this message]
2015-01-29 15:00 ` [PATCH v3 4/6] mmc: pwrseq_simple: Add optional reference clock support Javier Martinez Canillas
2015-01-30 11:17   ` Ulf Hansson
2015-01-30 13:03     ` Javier Martinez Canillas
2015-01-29 15:00 ` [PATCH v3 5/6] ARM: dts: exynos5250-snow: Enable wifi power-on Javier Martinez Canillas
2015-01-29 15:00 ` [PATCH v3 6/6] ARM: dts: exynos5250-snow: Add cap-sdio-irq to wifi mmc node Javier Martinez Canillas
2015-01-30 11:13 ` [PATCH v3 0/6] Add multiple GPIO and external clock to MMC pwrseq_simple Ulf Hansson
2015-01-30 13:06   ` Javier Martinez Canillas
2015-02-04 15:06     ` Javier Martinez Canillas
2015-02-04 15:19       ` Kukjin Kim
2015-02-04 15:22         ` Javier Martinez Canillas

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