diff options
Diffstat (limited to 'dts/Bindings/pwm')
| -rw-r--r-- | dts/Bindings/pwm/pwm-bcm2835.txt | 4 | ||||
| -rw-r--r-- | dts/Bindings/pwm/pwm-mediatek.txt | 6 | ||||
| -rw-r--r-- | dts/Bindings/pwm/pwm-meson.txt | 1 | ||||
| -rw-r--r-- | dts/Bindings/pwm/pwm-rockchip.txt | 11 | ||||
| -rw-r--r-- | dts/Bindings/pwm/pwm-stm32-lp.txt | 24 | ||||
| -rw-r--r-- | dts/Bindings/pwm/pwm-sun4i.txt | 1 | ||||
| -rw-r--r-- | dts/Bindings/pwm/pwm-tiecap.txt | 1 | ||||
| -rw-r--r-- | dts/Bindings/pwm/pwm-tipwmss.txt | 2 | ||||
| -rw-r--r-- | dts/Bindings/pwm/pwm-zx.txt | 22 | ||||
| -rw-r--r-- | dts/Bindings/pwm/renesas,tpu-pwm.txt | 1 |
10 files changed, 63 insertions, 10 deletions
diff --git a/dts/Bindings/pwm/pwm-bcm2835.txt b/dts/Bindings/pwm/pwm-bcm2835.txt index cf573e85b1..8cf87d1bfc 100644 --- a/dts/Bindings/pwm/pwm-bcm2835.txt +++ b/dts/Bindings/pwm/pwm-bcm2835.txt @@ -6,7 +6,7 @@ Required properties: - clocks: This clock defines the base clock frequency of the PWM hardware system, the period and the duty_cycle of the PWM signal is a multiple of the base period. -- #pwm-cells: Should be 2. See pwm.txt in this directory for a description of +- #pwm-cells: Should be 3. See pwm.txt in this directory for a description of the cells format. Examples: @@ -15,7 +15,7 @@ pwm@2020c000 { compatible = "brcm,bcm2835-pwm"; reg = <0x2020c000 0x28>; clocks = <&clk_pwm>; - #pwm-cells = <2>; + #pwm-cells = <3>; }; clocks { diff --git a/dts/Bindings/pwm/pwm-mediatek.txt b/dts/Bindings/pwm/pwm-mediatek.txt index 54c59b0560..ef8bd3cb67 100644 --- a/dts/Bindings/pwm/pwm-mediatek.txt +++ b/dts/Bindings/pwm/pwm-mediatek.txt @@ -2,6 +2,8 @@ MediaTek PWM controller Required properties: - compatible: should be "mediatek,<name>-pwm": + - "mediatek,mt2712-pwm": found on mt2712 SoC. + - "mediatek,mt7622-pwm": found on mt7622 SoC. - "mediatek,mt7623-pwm": found on mt7623 SoC. - reg: physical base address and length of the controller's registers. - #pwm-cells: must be 2. See pwm.txt in this directory for a description of @@ -10,7 +12,9 @@ Required properties: - clock-names: must contain the following: - "top": the top clock generator - "main": clock used by the PWM core - - "pwm1-5": the five per PWM clocks + - "pwm1-8": the eight per PWM clocks for mt2712 + - "pwm1-6": the six per PWM clocks for mt7622 + - "pwm1-5": the five per PWM clocks for mt7623 - pinctrl-names: Must contain a "default" entry. - pinctrl-0: One property must exist for each entry in pinctrl-names. See pinctrl/pinctrl-bindings.txt for details of the property values. diff --git a/dts/Bindings/pwm/pwm-meson.txt b/dts/Bindings/pwm/pwm-meson.txt index 5b07bebbf6..1ee81321c3 100644 --- a/dts/Bindings/pwm/pwm-meson.txt +++ b/dts/Bindings/pwm/pwm-meson.txt @@ -19,7 +19,6 @@ Example: compatible = "amlogic,meson-gxbb-pwm"; reg = <0x0 0x08550 0x0 0x10>; #pwm-cells = <3>; - status = "disabled"; clocks = <&xtal>, <&xtal>; clock-names = "clkin0", "clkin1"; } diff --git a/dts/Bindings/pwm/pwm-rockchip.txt b/dts/Bindings/pwm/pwm-rockchip.txt index b8be3d09ee..2c5e52a5be 100644 --- a/dts/Bindings/pwm/pwm-rockchip.txt +++ b/dts/Bindings/pwm/pwm-rockchip.txt @@ -3,10 +3,17 @@ Rockchip PWM controller Required properties: - compatible: should be "rockchip,<name>-pwm" "rockchip,rk2928-pwm": found on RK29XX,RK3066 and RK3188 SoCs - "rockchip,rk3288-pwm": found on RK3288 SoC + "rockchip,rk3288-pwm": found on RK3288 SOC + "rockchip,rv1108-pwm", "rockchip,rk3288-pwm": found on RV1108 SoC "rockchip,vop-pwm": found integrated in VOP on RK3288 SoC - reg: physical base address and length of the controller's registers - - clocks: phandle and clock specifier of the PWM reference clock + - clocks: See ../clock/clock-bindings.txt + - For older hardware (rk2928, rk3066, rk3188, rk3228, rk3288, rk3399): + - There is one clock that's used both to derive the functional clock + for the device and as the bus clock. + - For newer hardware (rk3328 and future socs): specified by name + - "pwm": This is used to derive the functional clock. + - "pclk": This is the APB bus clock. - #pwm-cells: must be 2 (rk2928) or 3 (rk3288). See pwm.txt in this directory for a description of the cell format. diff --git a/dts/Bindings/pwm/pwm-stm32-lp.txt b/dts/Bindings/pwm/pwm-stm32-lp.txt new file mode 100644 index 0000000000..f8338d11fd --- /dev/null +++ b/dts/Bindings/pwm/pwm-stm32-lp.txt @@ -0,0 +1,24 @@ +STMicroelectronics STM32 Low-Power Timer PWM + +STM32 Low-Power Timer provides single channel PWM. + +Must be a sub-node of an STM32 Low-Power Timer device tree node. +See ../mfd/stm32-lptimer.txt for details about the parent node. + +Required parameters: +- compatible: Must be "st,stm32-pwm-lp". + +Optional properties: +- pinctrl-names: Set to "default". +- pinctrl-0: Phandle pointing to pin configuration node for PWM. + +Example: + timer@40002400 { + compatible = "st,stm32-lptimer"; + ... + pwm { + compatible = "st,stm32-pwm-lp"; + pinctrl-names = "default"; + pinctrl-0 = <&lppwm1_pins>; + }; + }; diff --git a/dts/Bindings/pwm/pwm-sun4i.txt b/dts/Bindings/pwm/pwm-sun4i.txt index f1cbeefb30..c5171660ea 100644 --- a/dts/Bindings/pwm/pwm-sun4i.txt +++ b/dts/Bindings/pwm/pwm-sun4i.txt @@ -19,5 +19,4 @@ Example: reg = <0x01c20e00 0xc>; clocks = <&osc24M>; #pwm-cells = <3>; - status = "disabled"; }; diff --git a/dts/Bindings/pwm/pwm-tiecap.txt b/dts/Bindings/pwm/pwm-tiecap.txt index 8007e839a7..06a363d9cc 100644 --- a/dts/Bindings/pwm/pwm-tiecap.txt +++ b/dts/Bindings/pwm/pwm-tiecap.txt @@ -6,6 +6,7 @@ Required properties: for am4372 - compatible = "ti,am4372-ecap", "ti,am3352-ecap", "ti,am33xx-ecap"; for da850 - compatible = "ti,da850-ecap", "ti,am3352-ecap", "ti,am33xx-ecap"; for dra746 - compatible = "ti,dra746-ecap", "ti,am3352-ecap"; + for 66ak2g - compatible = "ti,k2g-ecap", "ti,am3352-ecap"; - #pwm-cells: should be 3. See pwm.txt in this directory for a description of the cells format. The PWM channel index ranges from 0 to 4. The only third cell flag supported by this binding is PWM_POLARITY_INVERTED. diff --git a/dts/Bindings/pwm/pwm-tipwmss.txt b/dts/Bindings/pwm/pwm-tipwmss.txt index 1a5d7b71db..4633697fbd 100644 --- a/dts/Bindings/pwm/pwm-tipwmss.txt +++ b/dts/Bindings/pwm/pwm-tipwmss.txt @@ -26,7 +26,6 @@ epwmss0: epwmss@48300000 { /* PWMSS for am33xx */ ti,hwmods = "epwmss0"; #address-cells = <1>; #size-cells = <1>; - status = "disabled"; ranges = <0x48300100 0x48300100 0x80 /* ECAP */ 0x48300180 0x48300180 0x80 /* EQEP */ 0x48300200 0x48300200 0x80>; /* EHRPWM */ @@ -40,7 +39,6 @@ epwmss0: epwmss@48300000 { /* PWMSS for am4372 */ ti,hwmods = "epwmss0"; #address-cells = <1>; #size-cells = <1>; - status = "disabled"; ranges = <0x48300100 0x48300100 0x80 /* ECAP */ 0x48300180 0x48300180 0x80 /* EQEP */ 0x48300200 0x48300200 0x80>; /* EHRPWM */ diff --git a/dts/Bindings/pwm/pwm-zx.txt b/dts/Bindings/pwm/pwm-zx.txt new file mode 100644 index 0000000000..a6bcc75c91 --- /dev/null +++ b/dts/Bindings/pwm/pwm-zx.txt @@ -0,0 +1,22 @@ +ZTE ZX PWM controller + +Required properties: + - compatible: Should be "zte,zx296718-pwm". + - reg: Physical base address and length of the controller's registers. + - clocks : The phandle and specifier referencing the controller's clocks. + - clock-names: "pclk" for PCLK, "wclk" for WCLK to the PWM controller. The + PCLK is for register access, while WCLK is the reference clock for + calculating period and duty cycles. + - #pwm-cells: Should be 3. See pwm.txt in this directory for a description of + the cells format. + +Example: + + pwm: pwm@1439000 { + compatible = "zte,zx296718-pwm"; + reg = <0x1439000 0x1000>; + clocks = <&lsp1crm LSP1_PWM_PCLK>, + <&lsp1crm LSP1_PWM_WCLK>; + clock-names = "pclk", "wclk"; + #pwm-cells = <3>; + }; diff --git a/dts/Bindings/pwm/renesas,tpu-pwm.txt b/dts/Bindings/pwm/renesas,tpu-pwm.txt index b067e84a94..1aadc804da 100644 --- a/dts/Bindings/pwm/renesas,tpu-pwm.txt +++ b/dts/Bindings/pwm/renesas,tpu-pwm.txt @@ -6,7 +6,6 @@ Required Properties: - "renesas,tpu-r8a73a4": for R8A77A4 (R-Mobile APE6) compatible PWM controller. - "renesas,tpu-r8a7740": for R8A7740 (R-Mobile A1) compatible PWM controller. - "renesas,tpu-r8a7790": for R8A7790 (R-Car H2) compatible PWM controller. - - "renesas,tpu-sh7372": for SH7372 (SH-Mobile AP4) compatible PWM controller. - "renesas,tpu": for generic R-Car TPU PWM controller. - reg: Base address and length of each memory resource used by the PWM |