| Message ID | 1350643135-13197-1-git-send-email-linux@prisktech.co.nz (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Fri, 2012-10-19 at 23:38 +1300, Tony Prisk wrote: > This patch adds pwm support to arch-vt8500 board files, and adds > the use-case of pwm-backlight. > > Signed-off-by: Tony Prisk <linux@prisktech.co.nz> > --- > arch/arm/boot/dts/vt8500-bv07.dts | 8 ++++++++ > arch/arm/boot/dts/vt8500.dtsi | 29 +++++++++++++++++++++++++++++ > arch/arm/boot/dts/wm8505-ref.dts | 8 ++++++++ > arch/arm/boot/dts/wm8505.dtsi | 29 +++++++++++++++++++++++++++++ > arch/arm/boot/dts/wm8650-mid.dts | 8 ++++++++ > arch/arm/boot/dts/wm8650.dtsi | 17 +++++++++++++---- > 6 files changed, 95 insertions(+), 4 deletions(-) > > diff --git a/arch/arm/boot/dts/vt8500-bv07.dts b/arch/arm/boot/dts/vt8500-bv07.dts > index 567cf4e..3cba367 100644 > --- a/arch/arm/boot/dts/vt8500-bv07.dts > +++ b/arch/arm/boot/dts/vt8500-bv07.dts > @@ -33,4 +33,12 @@ > }; > }; > }; > + > + backlight { > + compatible = "pwm-backlight"; > + pwms = <&pwm 0 50000>; > + > + brightness-levels = <0 4 8 16 32 64 128 255>; > + default-brightness-level = <5>; > + }; > }; > diff --git a/arch/arm/boot/dts/vt8500.dtsi b/arch/arm/boot/dts/vt8500.dtsi > index d8645e9..e196b2e 100644 > --- a/arch/arm/boot/dts/vt8500.dtsi > +++ b/arch/arm/boot/dts/vt8500.dtsi > @@ -40,14 +40,43 @@ > #address-cells = <1>; > #size-cells = <0>; > > + ref25: ref25M { > + #clock-cells = <0>; > + compatible = "fixed-clock"; > + clock-frequency = <25000000>; > + }; > + > ref24: ref24M { > #clock-cells = <0>; > compatible = "fixed-clock"; > clock-frequency = <24000000>; > }; > + > + pllb: pllb { > + #clock-cells = <0>; > + compatible = "via,vt8500-pll-clock"; > + clocks = <&ref25>; > + reg = <0x204>; > + }; > + > + clkpwm: pwm { > + #clock-cells = <0>; > + compatible = "via,vt8500-device-clock"; > + clocks = <&pllb>; > + divisor-reg = <0x348>; > + enable-reg = <0x250>; > + enable-bit = <14>; > + }; > }; > }; > > + pwm: pwm@d8220000 { > + #pwm-cells = <2>; > + compatible = "via,vt8500-pwm"; > + reg = <0xd8220000 0x100>; > + clocks = <&clkpwm>; > + }; > + > timer@d8130100 { > compatible = "via,vt8500-timer"; > reg = <0xd8130100 0x28>; > diff --git a/arch/arm/boot/dts/wm8505-ref.dts b/arch/arm/boot/dts/wm8505-ref.dts > index fd4e248..f51c0ed 100644 > --- a/arch/arm/boot/dts/wm8505-ref.dts > +++ b/arch/arm/boot/dts/wm8505-ref.dts > @@ -33,4 +33,12 @@ > }; > }; > }; > + > + backlight { > + compatible = "pwm-backlight"; > + pwms = <&pwm 0 50000>; > + > + brightness-levels = <0 4 8 16 32 64 128 255>; > + default-brightness-level = <5>; > + }; > }; > diff --git a/arch/arm/boot/dts/wm8505.dtsi b/arch/arm/boot/dts/wm8505.dtsi > index b459691..83c8ec5 100644 > --- a/arch/arm/boot/dts/wm8505.dtsi > +++ b/arch/arm/boot/dts/wm8505.dtsi > @@ -54,14 +54,43 @@ > #address-cells = <1>; > #size-cells = <0>; > > + ref25: ref25M { > + #clock-cells = <0>; > + compatible = "fixed-clock"; > + clock-frequency = <25000000>; > + }; > + > ref24: ref24M { > #clock-cells = <0>; > compatible = "fixed-clock"; > clock-frequency = <24000000>; > }; > + > + pllb: pllb { > + #clock-cells = <0>; > + compatible = "via,vt8500-pll-clock"; > + clocks = <&ref25>; > + reg = <0x204>; > + }; > + > + clkpwm: pwm { > + #clock-cells = <0>; > + compatible = "via,vt8500-device-clock"; > + clocks = <&pllb>; > + divisor-reg = <0x348>; > + enable-reg = <0x250>; > + enable-bit = <10>; > + }; > }; > }; > > + pwm: pwm@d8220000 { > + #pwm-cells = <2>; > + compatible = "via,vt8500-pwm"; > + reg = <0xd8220000 0x100>; > + clocks = <&clkpwm>; > + }; > + > timer@d8130100 { > compatible = "via,vt8500-timer"; > reg = <0xd8130100 0x28>; > diff --git a/arch/arm/boot/dts/wm8650-mid.dts b/arch/arm/boot/dts/wm8650-mid.dts > index cefd938..7a05dd5 100644 > --- a/arch/arm/boot/dts/wm8650-mid.dts > +++ b/arch/arm/boot/dts/wm8650-mid.dts > @@ -33,4 +33,12 @@ > }; > }; > }; > + > + backlight { > + compatible = "pwm-backlight"; > + pwms = <&pwm 0 50000>; > + > + brightness-levels = <0 4 8 16 32 64 128 255>; > + default-brightness-level = <5>; > + }; > }; > diff --git a/arch/arm/boot/dts/wm8650.dtsi b/arch/arm/boot/dts/wm8650.dtsi > index 83b9467..a25d240 100644 > --- a/arch/arm/boot/dts/wm8650.dtsi > +++ b/arch/arm/boot/dts/wm8650.dtsi > @@ -75,14 +75,16 @@ > reg = <0x204>; > }; > > - arm: arm { > + clkpwm: pwm { > #clock-cells = <0>; > compatible = "via,vt8500-device-clock"; > - clocks = <&plla>; > - divisor-reg = <0x300>; > + clocks = <&pllb>; > + divisor-reg = <0x348>; > + enable-reg = <0x250>; > + enable-bit = <10>; > }; > > - sdhc: sdhc { > + clksdhc: sdhc { > #clock-cells = <0>; > compatible = "via,vt8500-device-clock"; > clocks = <&pllb>; > @@ -94,6 +96,13 @@ > }; > }; > > + pwm: pwm@d8220000 { > + #pwm-cells = <2>; > + compatible = "via,vt8500-pwm"; > + reg = <0xd8220000 0x100>; > + clocks = <&clkpwm>; > + }; > + > timer@d8130100 { > compatible = "via,vt8500-timer"; > reg = <0xd8130100 0x28>; Please don't pull Patch 1/3 to any trees. I will include in a pull-request for arm-soc with other dts updates later on. Patch 2/3 + 3/3 can be taken now or Ack'd and I'll do a pull-request later. Regards Tony P
diff --git a/arch/arm/boot/dts/vt8500-bv07.dts b/arch/arm/boot/dts/vt8500-bv07.dts index 567cf4e..3cba367 100644 --- a/arch/arm/boot/dts/vt8500-bv07.dts +++ b/arch/arm/boot/dts/vt8500-bv07.dts @@ -33,4 +33,12 @@ }; }; }; + + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 50000>; + + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <5>; + }; }; diff --git a/arch/arm/boot/dts/vt8500.dtsi b/arch/arm/boot/dts/vt8500.dtsi index d8645e9..e196b2e 100644 --- a/arch/arm/boot/dts/vt8500.dtsi +++ b/arch/arm/boot/dts/vt8500.dtsi @@ -40,14 +40,43 @@ #address-cells = <1>; #size-cells = <0>; + ref25: ref25M { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <25000000>; + }; + ref24: ref24M { #clock-cells = <0>; compatible = "fixed-clock"; clock-frequency = <24000000>; }; + + pllb: pllb { + #clock-cells = <0>; + compatible = "via,vt8500-pll-clock"; + clocks = <&ref25>; + reg = <0x204>; + }; + + clkpwm: pwm { + #clock-cells = <0>; + compatible = "via,vt8500-device-clock"; + clocks = <&pllb>; + divisor-reg = <0x348>; + enable-reg = <0x250>; + enable-bit = <14>; + }; }; }; + pwm: pwm@d8220000 { + #pwm-cells = <2>; + compatible = "via,vt8500-pwm"; + reg = <0xd8220000 0x100>; + clocks = <&clkpwm>; + }; + timer@d8130100 { compatible = "via,vt8500-timer"; reg = <0xd8130100 0x28>; diff --git a/arch/arm/boot/dts/wm8505-ref.dts b/arch/arm/boot/dts/wm8505-ref.dts index fd4e248..f51c0ed 100644 --- a/arch/arm/boot/dts/wm8505-ref.dts +++ b/arch/arm/boot/dts/wm8505-ref.dts @@ -33,4 +33,12 @@ }; }; }; + + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 50000>; + + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <5>; + }; }; diff --git a/arch/arm/boot/dts/wm8505.dtsi b/arch/arm/boot/dts/wm8505.dtsi index b459691..83c8ec5 100644 --- a/arch/arm/boot/dts/wm8505.dtsi +++ b/arch/arm/boot/dts/wm8505.dtsi @@ -54,14 +54,43 @@ #address-cells = <1>; #size-cells = <0>; + ref25: ref25M { + #clock-cells = <0>; + compatible = "fixed-clock"; + clock-frequency = <25000000>; + }; + ref24: ref24M { #clock-cells = <0>; compatible = "fixed-clock"; clock-frequency = <24000000>; }; + + pllb: pllb { + #clock-cells = <0>; + compatible = "via,vt8500-pll-clock"; + clocks = <&ref25>; + reg = <0x204>; + }; + + clkpwm: pwm { + #clock-cells = <0>; + compatible = "via,vt8500-device-clock"; + clocks = <&pllb>; + divisor-reg = <0x348>; + enable-reg = <0x250>; + enable-bit = <10>; + }; }; }; + pwm: pwm@d8220000 { + #pwm-cells = <2>; + compatible = "via,vt8500-pwm"; + reg = <0xd8220000 0x100>; + clocks = <&clkpwm>; + }; + timer@d8130100 { compatible = "via,vt8500-timer"; reg = <0xd8130100 0x28>; diff --git a/arch/arm/boot/dts/wm8650-mid.dts b/arch/arm/boot/dts/wm8650-mid.dts index cefd938..7a05dd5 100644 --- a/arch/arm/boot/dts/wm8650-mid.dts +++ b/arch/arm/boot/dts/wm8650-mid.dts @@ -33,4 +33,12 @@ }; }; }; + + backlight { + compatible = "pwm-backlight"; + pwms = <&pwm 0 50000>; + + brightness-levels = <0 4 8 16 32 64 128 255>; + default-brightness-level = <5>; + }; }; diff --git a/arch/arm/boot/dts/wm8650.dtsi b/arch/arm/boot/dts/wm8650.dtsi index 83b9467..a25d240 100644 --- a/arch/arm/boot/dts/wm8650.dtsi +++ b/arch/arm/boot/dts/wm8650.dtsi @@ -75,14 +75,16 @@ reg = <0x204>; }; - arm: arm { + clkpwm: pwm { #clock-cells = <0>; compatible = "via,vt8500-device-clock"; - clocks = <&plla>; - divisor-reg = <0x300>; + clocks = <&pllb>; + divisor-reg = <0x348>; + enable-reg = <0x250>; + enable-bit = <10>; }; - sdhc: sdhc { + clksdhc: sdhc { #clock-cells = <0>; compatible = "via,vt8500-device-clock"; clocks = <&pllb>; @@ -94,6 +96,13 @@ }; }; + pwm: pwm@d8220000 { + #pwm-cells = <2>; + compatible = "via,vt8500-pwm"; + reg = <0xd8220000 0x100>; + clocks = <&clkpwm>; + }; + timer@d8130100 { compatible = "via,vt8500-timer"; reg = <0xd8130100 0x28>;
This patch adds pwm support to arch-vt8500 board files, and adds the use-case of pwm-backlight. Signed-off-by: Tony Prisk <linux@prisktech.co.nz> --- arch/arm/boot/dts/vt8500-bv07.dts | 8 ++++++++ arch/arm/boot/dts/vt8500.dtsi | 29 +++++++++++++++++++++++++++++ arch/arm/boot/dts/wm8505-ref.dts | 8 ++++++++ arch/arm/boot/dts/wm8505.dtsi | 29 +++++++++++++++++++++++++++++ arch/arm/boot/dts/wm8650-mid.dts | 8 ++++++++ arch/arm/boot/dts/wm8650.dtsi | 17 +++++++++++++---- 6 files changed, 95 insertions(+), 4 deletions(-)