From: Caesar Wang <wxt@rock-chips.com>
To: Heiko Stuebner <heiko@sntech.de>, Ulf Hansson <ulf.hansson@linaro.org>
Cc: linux-rockchip@lists.infradead.org, leecam@google.com,
leozwang@google.com, keescook@google.com,
Caesar Wang <wxt@rock-chips.com>,
Javier Martinez Canillas <javier@osg.samsung.com>,
devicetree@vger.kernel.org, Andreas Fenkart <afenkart@gmail.com>,
Kumar Gala <galak@codeaurora.org>,
linux-kernel@vger.kernel.org,
Ian Campbell <ijc+devicetree@hellion.org.uk>,
Rob Herring <robh+dt@kernel.org>, Pawel Moll <pawel.moll@arm.com>,
Mark Rutland <mark.rutland@arm.com>
Subject: [PATCH v2 05/12] mmc: pwrseq: Document optional exteral vcc for the simple power sequence
Date: Thu, 7 Jan 2016 16:25:48 +0800 [thread overview]
Message-ID: <1452155155-16232-6-git-send-email-wxt@rock-chips.com> (raw)
In-Reply-To: <1452155155-16232-1-git-send-email-wxt@rock-chips.com>
This patch adds the exteral vcc optional for the simple power sequence.
Some WLAN chips attached to a SDIO interface, need an external vcc
to be operational. Since this is very common, extend the simple MMC
power sequence DT binding to support an optional exteral vcc.
Signed-off-by: Caesar Wang <wxt@rock-chips.com>
---
Changes in v2: None
Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt | 9 +++++++++
1 file changed, 9 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
index ce0e767..fdcc6a1 100644
--- a/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
+++ b/Documentation/devicetree/bindings/mmc/mmc-pwrseq-simple.txt
@@ -12,6 +12,7 @@ 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.
+- ext-vcc-supply : Regulator to drive (independent) card VCC.
- 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:
@@ -19,9 +20,17 @@ Optional properties:
Example:
+ wifi_regulator: wifi-regulator {
+ compatible = "regulator-fixed";
+ enable-active-high;
+ gpio = <&gpio0 26 GPIO_ACTIVE_HIGH>;
+ regulator-name = "wifi_regulator";
+ };
+
sdhci0_pwrseq {
compatible = "mmc-pwrseq-simple";
reset-gpios = <&gpio1 12 GPIO_ACTIVE_LOW>;
+ ext-vcc-supply = <&wifi_regulator>;
clocks = <&clk_32768_ck>;
clock-names = "ext_clock";
}
--
1.9.1
next prev parent reply other threads:[~2016-01-07 8:25 UTC|newest]
Thread overview: 18+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-07 8:25 [PATCH v2 00/12] Add the family patches to support for kylin board Caesar Wang
2016-01-07 8:25 ` [PATCH v2 01/12] ARM: dts: rockchip: set the pinctrl default setting for rk3036 i2s Caesar Wang
[not found] ` <1452155155-16232-2-git-send-email-wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-01-09 2:17 ` Heiko Stuebner
2016-01-07 8:25 ` Caesar Wang [this message]
[not found] ` <1452155155-16232-6-git-send-email-wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-01-08 12:13 ` [PATCH v2 05/12] mmc: pwrseq: Document optional exteral vcc for the simple power sequence Javier Martinez Canillas
2016-01-07 8:25 ` [PATCH v2 07/12] ARM: dts: rockchip: enable the high speed on sdio for kylin board Caesar Wang
2016-01-07 8:25 ` [PATCH v2 08/12] ARM: dts: rockchip: add the wifi/bt regulator " Caesar Wang
2016-01-07 8:25 ` [PATCH v2 09/12] ARM: dts: rockchip: enable the uart0 " Caesar Wang
2016-01-07 8:25 ` [PATCH v2 10/12] ARM: dts: rockchip: add the sdmmc " Caesar Wang
2016-01-07 8:25 ` [PATCH v2 11/12] ARM: dts: rockchip: add the lcdc and hdmi node for rk3036 Caesar Wang
[not found] ` <1452155155-16232-1-git-send-email-wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-01-07 8:25 ` [PATCH v2 02/12] ARM: dts: rockchip: add the sound codec for kylin board Caesar Wang
[not found] ` <1452155155-16232-3-git-send-email-wxt-TNX95d0MmH7DzftRWevZcw@public.gmane.org>
2016-01-09 2:39 ` Heiko Stuebner
2016-01-07 8:25 ` [PATCH v2 03/12] ARM: dts: rockchip: override the clocks in i2s " Caesar Wang
2016-01-09 2:31 ` Heiko Stuebner
2016-01-11 13:38 ` Caesar Wang
2016-01-07 8:25 ` [PATCH v2 12/12] ARM: dts: Add pl330-broken-no-flushp quirk for rk3036 SoCs Caesar Wang
2016-01-07 10:44 ` [PATCH v2 00/12] Add the family patches to support for kylin board Heiko Stuebner
2016-01-08 9:02 ` Caesar Wang
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