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3b3d85e25c
* Bump imx6 edge to 5.12.y * Bump odroid xu4 edge to 5.12.y * Bump Jetson nano edge to 5.12.y * WIP: Bump sunxi to 5.12.y - create a copy of patches and make a new link - wireless patches needs adjutement to 5.12 - some patches are still failing * Adjust wireless patches to build on 5.12.y * Remove template wireless patch * Move Espressobin edge to 5.12.y * Bump mvebu to 5.12 - patch 92-mvebu-gpio-remove-hardcoded-timer-assignment.patch was disabled @heisath - adjusted wireless driver for 8723ds * Adjust sunxi / sunxi64 edge to compile * Fix kernel config for Jetson nano edge * bump meson64 to 5.12.y * bump rockchip edge to 5.12.y * Bump rockchip64 to 5.12.y * Bump rk322x edge to 5.12.y @paolosabatino * Cleanup im6, re-add 5.10.y patches since one is missing in 5.12.y * Update odroidxu4 edge links * rk322x: moved rk322x-edge to kernel 5.12, fix overlay compilation, retouched included kernel modules * Cleanup: remove deprecated config Co-authored-by: Paolo Sabatino <paolo.sabatino@gmail.com>
74 lines
2.4 KiB
Diff
74 lines
2.4 KiB
Diff
From f5528e96b7dd2b30e1accc518df85d14baad6bae Mon Sep 17 00:00:00 2001
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From: Peter Chen <peter.chen@nxp.com>
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Date: Thu, 18 May 2017 08:48:57 +0800
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Subject: [PATCH 1/9] binding-doc: power: pwrseq-generic: add binding doc for
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generic power sequence library
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Add binding doc for generic power sequence library.
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Signed-off-by: Peter Chen <peter.chen@nxp.com>
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Acked-by: Philipp Zabel <p.zabel@pengutronix.de>
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Acked-by: Rob Herring <robh@kernel.org>
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---
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.../bindings/power/pwrseq/pwrseq-generic.txt | 48 +++++++++++++++++++
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1 file changed, 48 insertions(+)
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create mode 100644 Documentation/devicetree/bindings/power/pwrseq/pwrseq-generic.txt
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diff --git a/Documentation/devicetree/bindings/power/pwrseq/pwrseq-generic.txt b/Documentation/devicetree/bindings/power/pwrseq/pwrseq-generic.txt
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new file mode 100644
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index 000000000000..ebf0d477b688
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--- /dev/null
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+++ b/Documentation/devicetree/bindings/power/pwrseq/pwrseq-generic.txt
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@@ -0,0 +1,48 @@
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+The generic power sequence library
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+
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+Some hard-wired devices (eg USB/MMC) need to do power sequence before
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+the device can be enumerated on the bus, the typical power sequence
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+like: enable USB PHY clock, toggle reset pin, etc. But current
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+Linux device driver lacks of such code to do it, it may cause some
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+hard-wired devices works abnormal or can't be recognized by
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+controller at all. The power sequence will be done before this device
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+can be found at the bus.
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+
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+The power sequence properties is under the device node.
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+
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+Optional properties:
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+- clocks: the input clocks for device.
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+- reset-gpios: Should specify the GPIO for reset.
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+- reset-duration-us: the duration in microsecond for assert reset signal.
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+
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+Below is the example of USB power sequence properties on USB device
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+nodes which have two level USB hubs.
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+
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+&usbotg1 {
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+ vbus-supply = <®_usb_otg1_vbus>;
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+ pinctrl-names = "default";
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+ pinctrl-0 = <&pinctrl_usb_otg1_id>;
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+ status = "okay";
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+
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ genesys: hub@1 {
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+ compatible = "usb5e3,608";
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+ reg = <1>;
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+
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+ clocks = <&clks IMX6SX_CLK_CKO>;
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+ reset-gpios = <&gpio4 5 GPIO_ACTIVE_LOW>; /* hub reset pin */
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+ reset-duration-us = <10>;
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+
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+ #address-cells = <1>;
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+ #size-cells = <0>;
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+ asix: ethernet@1 {
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+ compatible = "usbb95,1708";
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+ reg = <1>;
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+
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+ clocks = <&clks IMX6SX_CLK_IPG>;
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+ reset-gpios = <&gpio4 6 GPIO_ACTIVE_LOW>; /* ethernet_rst */
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+ reset-duration-us = <15>;
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+ };
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+ };
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+};
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--
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2.20.1
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