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-rw-r--r--Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt39
1 files changed, 21 insertions, 18 deletions
diff --git a/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt b/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt
index 26bcb18f4e60..013c675b5b64 100644
--- a/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt
+++ b/Documentation/devicetree/bindings/pinctrl/pinctrl-st.txt
@@ -30,8 +30,7 @@ Second type has a dedicated interrupt per gpio bank.
Pin controller node:
Required properties:
-- compatible : should be "st,<SOC>-<pio-block>-pinctrl"
- like st,stih415-sbc-pinctrl, st,stih415-front-pinctrl and so on.
+- compatible : should be "st,stih407-<pio-block>-pinctrl"
- st,syscfg : Should be a phandle of the syscfg node.
- st,retime-pin-mask : Should be mask to specify which pins can be retimed.
If the property is not present, it is assumed that all the pins in the
@@ -50,7 +49,11 @@ Optional properties:
GPIO controller/bank node.
Required properties:
- gpio-controller : Indicates this device is a GPIO controller
-- #gpio-cells : Should be one. The first cell is the pin number.
+- #gpio-cells : Must be two.
+ - First cell: specifies the pin number inside the controller
+ - Second cell: specifies whether the pin is logically inverted.
+ - 0 = active high
+ - 1 = active low
- st,bank-name : Should be a name string for this bank as specified in
datasheet.
@@ -76,23 +79,23 @@ include/dt-bindings/interrupt-controller/irq.h
Example:
pin-controller-sbc {
- #address-cells = <1>;
- #size-cells = <1>;
- compatible = "st,stih415-sbc-pinctrl";
- st,syscfg = <&syscfg_sbc>;
- reg = <0xfe61f080 0x4>;
- reg-names = "irqmux";
- interrupts = <GIC_SPI 180 IRQ_TYPE_LEVEL_HIGH>;
- interrupt-names = "irqmux";
- ranges = <0 0xfe610000 0x5000>;
-
- PIO0: gpio@fe610000 {
+ #address-cells = <1>;
+ #size-cells = <1>;
+ compatible = "st,stih407-sbc-pinctrl";
+ st,syscfg = <&syscfg_sbc>;
+ reg = <0x0961f080 0x4>;
+ reg-names = "irqmux";
+ interrupts = <GIC_SPI 188 IRQ_TYPE_NONE>;
+ interrupt-names = "irqmux";
+ ranges = <0 0x09610000 0x6000>;
+
+ pio0: gpio@09610000 {
gpio-controller;
- #gpio-cells = <1>;
+ #gpio-cells = <2>;
interrupt-controller;
#interrupt-cells = <2>;
- reg = <0 0x100>;
- st,bank-name = "PIO0";
+ reg = <0x0 0x100>;
+ st,bank-name = "PIO0";
};
...
pin-functions nodes follow...
@@ -162,7 +165,7 @@ pin-controller {
sdhci0:sdhci@fe810000{
...
- interrupt-parent = <&PIO3>;
+ interrupt-parent = <&pio3>;
#interrupt-cells = <2>;
interrupts = <3 IRQ_TYPE_LEVEL_HIGH>; /* Interrupt line via PIO3-3 */
interrupt-names = "card-detect";