| Message ID | 1481633026-19333-1-git-send-email-jacopo@jmondi.org (mailing list archive) |
|---|---|
| State | RFC |
| Delegated to: | Simon Horman |
| Headers | show |
On Tue, Dec 13, 2016 at 1:43 PM, Jacopo Mondi <jacopo@jmondi.org> wrote: > > diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts > index 5405d33..1756b86 100644 > --- a/arch/arm/boot/dts/r8a7791-koelsch.dts > +++ b/arch/arm/boot/dts/r8a7791-koelsch.dts > + spi_gpio: spi-gpio@0 { > + compatible = "spi-gpio"; > + #address-cells = <1>; > + #size-cells = <0>; > + gpio-sck = <&gpio5 27 GPIO_ACTIVE_HIGH>; > + gpio-miso = <&gpio5 25 GPIO_ACTIVE_HIGH>; > + num-chipselects = <1>; > + cs-gpios = <&gpio5 26 GPIO_ACTIVE_LOW>; > + status = "okay"; > + > + adc0: max11100@0 { The node name should be a generic name, the label should be the specific name. I.e. "max11100: adc@0" > + compatible = "maxim,max11100"; > + reg = <0>; > + spi-max-frequency = <2500000>; > + vref-supply = <&vref_adc0>; Gr{oetje,eeting}s, Geert -- Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@linux-m68k.org In personal conversations with technical people, I call myself a hacker. But when I'm talking to journalists I just say "programmer" or something like that. -- Linus Torvalds
diff --git a/arch/arm/boot/dts/r8a7791-koelsch.dts b/arch/arm/boot/dts/r8a7791-koelsch.dts index 5405d33..1756b86 100644 --- a/arch/arm/boot/dts/r8a7791-koelsch.dts +++ b/arch/arm/boot/dts/r8a7791-koelsch.dts @@ -170,6 +170,38 @@ gpios = <&gpio2 21 GPIO_ACTIVE_HIGH>; label = "LED8"; }; + led28 { + gpios = <&gpio5 28 GPIO_ACTIVE_HIGH>; + label = "LED28"; + }; + }; + + vref_adc0: regulator-vref-adc0 { + compatible = "regulator-fixed"; + + regulator-name = "ADC0 Vref"; + regulator-min-microvolt = <4096000>; + regulator-max-microvolt = <4096000>; + + regulator-always-on; + }; + + spi_gpio: spi-gpio@0 { + compatible = "spi-gpio"; + #address-cells = <1>; + #size-cells = <0>; + gpio-sck = <&gpio5 27 GPIO_ACTIVE_HIGH>; + gpio-miso = <&gpio5 25 GPIO_ACTIVE_HIGH>; + num-chipselects = <1>; + cs-gpios = <&gpio5 26 GPIO_ACTIVE_LOW>; + status = "okay"; + + adc0: max11100@0 { + compatible = "maxim,max11100"; + reg = <0>; + spi-max-frequency = <2500000>; + vref-supply = <&vref_adc0>; + }; }; vcc_sdhi0: regulator-vcc-sdhi0 {
Add node to test MAX11100 ADC with LED28 connected to the chip input line. The ADC sits on a gpio-spi master. Signed-off-by: Jacopo Mondi <jacopo@jmondi.org> --- Sending as RFC only, not for inclusion. Used to test MAX11100 ADC driver currently connected to Koelsch GPIO expander. v1 -> v2: - add fixed regulator to supply vref to max11100 ADC --- arch/arm/boot/dts/r8a7791-koelsch.dts | 32 ++++++++++++++++++++++++++++++++ 1 file changed, 32 insertions(+)