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target/linux/brcm63xx/patches-4.9/135-Documentation-add-BCM6358-pincontroller-binding-docu.patch Normal file
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From c7c8fa7f5b5ee9bea751fa7bdae8ff4acde8f26e Mon Sep 17 00:00:00 2001
From: Jonas Gorski <jonas.gorski@gmail.com>
Date: Wed, 27 Jul 2016 11:36:00 +0200
Subject: [PATCH 06/16] Documentation: add BCM6358 pincontroller binding
documentation
Add binding documentation for the pincontrol core found in BCM6358 SoCs.
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
---
.../bindings/pinctrl/brcm,bcm6358-pinctrl.txt | 44 ++++++++++++++++++++++
1 file changed, 44 insertions(+)
create mode 100644 Documentation/devicetree/bindings/pinctrl/brcm,bcm6358-pinctrl.txt
--- /dev/null
+++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm6358-pinctrl.txt
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+* Broadcom BCM6358 pin controller
+
+Required properties:
+- compatible: Must be "brcm,bcm6358-pinctrl".
+- reg: Register specifiers of dirout, dat registers.
+- reg-names: Must be "dirout", "dat".
+- brcm,gpiomode: Phandle to the shared gpiomode register.
+- gpio-controller: Identifies this node as a gpio-controller.
+- #gpio-cells: Must be <2>.
+
+Example:
+
+pinctrl: pin-controller@fffe0080 {
+ compatible = "brcm,bcm6358-pinctrl";
+ reg = <0xfffe0080 0x8>,
+ <0xfffe0088 0x8>,
+ <0xfffe0098 0x4>;
+ reg-names = "dirout", "dat";
+ brcm,gpiomode = <&gpiomode>;
+
+ gpio-controller;
+ #gpio-cells = <2>;
+};
+
+gpiomode: syscon@fffe0098 {
+ compatible = "brcm,bcm6358-gpiomode", "syscon";
+ reg = <0xfffe0098 0x4>;
+ native-endian;
+};
+
+Available pins/groups and functions:
+
+name pins functions
+-----------------------------------------------------------
+ebi_cs_grp 30-31 ebi_cs
+uart1_grp 28-31 uart1
+spi_cs_grp 32-33 spi_cs
+async_modem_grp 12-15 async_modem
+legacy_led_grp 9-15 legacy_led
+serial_led_grp 6-7 serial_led
+led_grp 0-3 led
+utopia_grp 12-15, 22-31 utopia
+pwm_syn_clk_grp 8 pwm_syn_clk
+sys_irq_grp 5 sys_irq