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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 1/6] mmc: pwrseq: Document that simple sequence support more than one GPIO
Date: Thu, 29 Jan 2015 16:00:03 +0100 [thread overview]
Message-ID: <1422543608-24704-2-git-send-email-javier.martinez@collabora.co.uk> (raw)
In-Reply-To: <1422543608-24704-1-git-send-email-javier.martinez@collabora.co.uk>
Many SDIO/MMC attached WLAN chips need more than one ping for their reset
sequence. Extend the pwrseq_simple binding to support more than one pin.
Signed-off-by: Javier Martinez Canillas <javier.martinez@collabora.co.uk>
---
Changes since v2: None.
Changes since v1:
- Make the explanation clearer by adding an explicit "they".
Suggested by Srinivas Kandagatla.
---
Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
index da333d9ed94c..eaae652213ae 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
@@ -8,9 +8,10 @@ Required properties:
- compatible : contains "mmc-pwrseq-simple".
Optional properties:
-- reset-gpios : contains a GPIO specifier. The reset GPIO is asserted at
- initialization and prior we start the power up procedure of the card. It
- will be de-asserted right after the power has been provided to the card.
+- 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.
+ They will be de-asserted right after the power has been provided to the
+ card.
Example:
--
2.1.3
next prev 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 ` Javier Martinez Canillas [this message]
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 ` [PATCH v3 3/6] mmc: pwrseq: Document optional clock for the simple power sequence Javier Martinez Canillas
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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