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authorSascha Hauer <s.hauer@pengutronix.de>2019-08-19 08:56:20 +0200
committerSascha Hauer <s.hauer@pengutronix.de>2019-08-19 08:56:20 +0200
commit6940ba22c66ac1c713500027bf5f6832442a1410 (patch)
treea460f01b9807e1c17206a40dbc94b6f54167cf29 /dts/Bindings/pwm
parente66a790177410d7433e6672d97bb0b54455ba669 (diff)
downloadbarebox-6940ba22c66ac1c713500027bf5f6832442a1410.tar.gz
barebox-6940ba22c66ac1c713500027bf5f6832442a1410.tar.xz
dts: update to v5.3-rc1
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'dts/Bindings/pwm')
-rw-r--r--dts/Bindings/pwm/allwinner,sun4i-a10-pwm.yaml57
-rw-r--r--dts/Bindings/pwm/ingenic,jz47xx-pwm.txt5
-rw-r--r--dts/Bindings/pwm/pwm-sifive.txt33
-rw-r--r--dts/Bindings/pwm/pwm-stm32-lp.txt9
-rw-r--r--dts/Bindings/pwm/pwm-stm32.txt3
-rw-r--r--dts/Bindings/pwm/pwm-sun4i.txt24
6 files changed, 100 insertions, 31 deletions
diff --git a/dts/Bindings/pwm/allwinner,sun4i-a10-pwm.yaml b/dts/Bindings/pwm/allwinner,sun4i-a10-pwm.yaml
new file mode 100644
index 0000000000..0ac52f83a5
--- /dev/null
+++ b/dts/Bindings/pwm/allwinner,sun4i-a10-pwm.yaml
@@ -0,0 +1,57 @@
+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/pwm/allwinner,sun4i-a10-pwm.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A10 PWM Device Tree Bindings
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <maxime.ripard@bootlin.com>
+
+properties:
+ "#pwm-cells":
+ const: 3
+
+ compatible:
+ oneOf:
+ - const: allwinner,sun4i-a10-pwm
+ - const: allwinner,sun5i-a10s-pwm
+ - const: allwinner,sun5i-a13-pwm
+ - const: allwinner,sun7i-a20-pwm
+ - const: allwinner,sun8i-h3-pwm
+ - items:
+ - const: allwinner,sun8i-a83t-pwm
+ - const: allwinner,sun8i-h3-pwm
+ - items:
+ - const: allwinner,sun50i-a64-pwm
+ - const: allwinner,sun5i-a13-pwm
+ - items:
+ - const: allwinner,sun50i-h5-pwm
+ - const: allwinner,sun5i-a13-pwm
+
+ reg:
+ maxItems: 1
+
+ clocks:
+ maxItems: 1
+
+required:
+ - "#pwm-cells"
+ - compatible
+ - reg
+ - clocks
+
+additionalProperties: false
+
+examples:
+ - |
+ pwm: pwm@1c20e00 {
+ compatible = "allwinner,sun7i-a20-pwm";
+ reg = <0x01c20e00 0xc>;
+ clocks = <&osc24M>;
+ #pwm-cells = <3>;
+ };
+
+...
diff --git a/dts/Bindings/pwm/ingenic,jz47xx-pwm.txt b/dts/Bindings/pwm/ingenic,jz47xx-pwm.txt
index 7d9d3f9064..493bec80d5 100644
--- a/dts/Bindings/pwm/ingenic,jz47xx-pwm.txt
+++ b/dts/Bindings/pwm/ingenic,jz47xx-pwm.txt
@@ -2,10 +2,7 @@ Ingenic JZ47xx PWM Controller
=============================
Required properties:
-- compatible: One of:
- * "ingenic,jz4740-pwm"
- * "ingenic,jz4770-pwm"
- * "ingenic,jz4780-pwm"
+- compatible: Should be "ingenic,jz4740-pwm"
- #pwm-cells: Should be 3. See pwm.txt in this directory for a description
of the cells format.
- clocks : phandle to the external clock.
diff --git a/dts/Bindings/pwm/pwm-sifive.txt b/dts/Bindings/pwm/pwm-sifive.txt
new file mode 100644
index 0000000000..36447e3c93
--- /dev/null
+++ b/dts/Bindings/pwm/pwm-sifive.txt
@@ -0,0 +1,33 @@
+SiFive PWM controller
+
+Unlike most other PWM controllers, the SiFive PWM controller currently only
+supports one period for all channels in the PWM. All PWMs need to run at
+the same period. The period also has significant restrictions on the values
+it can achieve, which the driver rounds to the nearest achievable period.
+PWM RTL that corresponds to the IP block version numbers can be found
+here:
+
+https://github.com/sifive/sifive-blocks/tree/master/src/main/scala/devices/pwm
+
+Required properties:
+- compatible: Should be "sifive,<chip>-pwm" and "sifive,pwm<version>".
+ Supported compatible strings are: "sifive,fu540-c000-pwm" for the SiFive
+ PWM v0 as integrated onto the SiFive FU540 chip, and "sifive,pwm0" for the
+ SiFive PWM v0 IP block with no chip integration tweaks.
+ Please refer to sifive-blocks-ip-versioning.txt for details.
+- reg: physical base address and length of the controller's registers
+- clocks: Should contain a clock identifier for the PWM's parent clock.
+- #pwm-cells: Should be 3. See pwm.txt in this directory
+ for a description of the cell format.
+- interrupts: one interrupt per PWM channel
+
+Examples:
+
+pwm: pwm@10020000 {
+ compatible = "sifive,fu540-c000-pwm", "sifive,pwm0";
+ reg = <0x0 0x10020000 0x0 0x1000>;
+ clocks = <&tlclk>;
+ interrupt-parent = <&plic>;
+ interrupts = <42 43 44 45>;
+ #pwm-cells = <3>;
+};
diff --git a/dts/Bindings/pwm/pwm-stm32-lp.txt b/dts/Bindings/pwm/pwm-stm32-lp.txt
index bd23302e84..6521bc44a7 100644
--- a/dts/Bindings/pwm/pwm-stm32-lp.txt
+++ b/dts/Bindings/pwm/pwm-stm32-lp.txt
@@ -11,8 +11,10 @@ Required parameters:
bindings defined in pwm.txt.
Optional properties:
-- pinctrl-names: Set to "default".
-- pinctrl-0: Phandle pointing to pin configuration node for PWM.
+- pinctrl-names: Set to "default". An additional "sleep" state can be
+ defined to set pins in sleep state when in low power.
+- pinctrl-n: Phandle(s) pointing to pin configuration node for PWM,
+ respectively for "default" and "sleep" states.
Example:
timer@40002400 {
@@ -21,7 +23,8 @@ Example:
pwm {
compatible = "st,stm32-pwm-lp";
#pwm-cells = <3>;
- pinctrl-names = "default";
+ pinctrl-names = "default", "sleep";
pinctrl-0 = <&lppwm1_pins>;
+ pinctrl-1 = <&lppwm1_sleep_pins>;
};
};
diff --git a/dts/Bindings/pwm/pwm-stm32.txt b/dts/Bindings/pwm/pwm-stm32.txt
index 3e6d55018d..a8690bfa5e 100644
--- a/dts/Bindings/pwm/pwm-stm32.txt
+++ b/dts/Bindings/pwm/pwm-stm32.txt
@@ -8,6 +8,8 @@ Required parameters:
- pinctrl-names: Set to "default".
- pinctrl-0: List of phandles pointing to pin configuration nodes for PWM module.
For Pinctrl properties see ../pinctrl/pinctrl-bindings.txt
+- #pwm-cells: Should be set to 3. This PWM chip uses the default 3 cells
+ bindings defined in pwm.txt.
Optional parameters:
- st,breakinput: One or two <index level filter> to describe break input configurations.
@@ -28,6 +30,7 @@ Example:
pwm {
compatible = "st,stm32-pwm";
+ #pwm-cells = <3>;
pinctrl-0 = <&pwm1_pins>;
pinctrl-names = "default";
st,breakinput = <0 1 5>;
diff --git a/dts/Bindings/pwm/pwm-sun4i.txt b/dts/Bindings/pwm/pwm-sun4i.txt
deleted file mode 100644
index 2a1affbff4..0000000000
--- a/dts/Bindings/pwm/pwm-sun4i.txt
+++ /dev/null
@@ -1,24 +0,0 @@
-Allwinner sun4i and sun7i SoC PWM controller
-
-Required properties:
- - compatible: should be one of:
- - "allwinner,sun4i-a10-pwm"
- - "allwinner,sun5i-a10s-pwm"
- - "allwinner,sun5i-a13-pwm"
- - "allwinner,sun7i-a20-pwm"
- - "allwinner,sun8i-h3-pwm"
- - "allwinner,sun50i-a64-pwm", "allwinner,sun5i-a13-pwm"
- - "allwinner,sun50i-h5-pwm", "allwinner,sun5i-a13-pwm"
- - reg: physical base address and length of the controller's registers
- - #pwm-cells: should be 3. See pwm.txt in this directory for a description of
- the cells format.
- - clocks: From common clock binding, handle to the parent clock.
-
-Example:
-
- pwm: pwm@1c20e00 {
- compatible = "allwinner,sun7i-a20-pwm";
- reg = <0x01c20e00 0xc>;
- clocks = <&osc24M>;
- #pwm-cells = <3>;
- };