From mboxrd@z Thu Jan 1 00:00:00 1970 From: robh@kernel.org (Rob Herring) Date: Tue, 22 Dec 2015 18:51:18 -0600 Subject: [PATCH 1/5] iio:adc:at91_adc8xx: introduce new atmel adc driver In-Reply-To: <1450689852-22763-2-git-send-email-ludovic.desroches@atmel.com> References: <1450689852-22763-1-git-send-email-ludovic.desroches@atmel.com> <1450689852-22763-2-git-send-email-ludovic.desroches@atmel.com> Message-ID: <20151223005118.GA29457@rob-hp-laptop> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On Mon, Dec 21, 2015 at 10:24:08AM +0100, Ludovic Desroches wrote: > This driver supports the new version of the Atmel ADC device introduced > with the SAMA5D2 SoC family. > > Signed-off-by: Ludovic Desroches > --- > .../devicetree/bindings/iio/adc/at91_adc8xx.txt | 27 ++ > drivers/iio/adc/Kconfig | 11 + > drivers/iio/adc/Makefile | 1 + > drivers/iio/adc/at91_adc8xx.c | 417 +++++++++++++++++++++ > 4 files changed, 456 insertions(+) > create mode 100644 Documentation/devicetree/bindings/iio/adc/at91_adc8xx.txt > create mode 100644 drivers/iio/adc/at91_adc8xx.c > > diff --git a/Documentation/devicetree/bindings/iio/adc/at91_adc8xx.txt b/Documentation/devicetree/bindings/iio/adc/at91_adc8xx.txt > new file mode 100644 > index 0000000..64ad6a5 > --- /dev/null > +++ b/Documentation/devicetree/bindings/iio/adc/at91_adc8xx.txt > @@ -0,0 +1,27 @@ > +* AT91 SAMA5D2 Analog to Digital Converter (ADC) > + > +Required properties: > + - compatible: Should be "atmel,sama5d2-adc". > + - reg: Should contain ADC registers location and length. > + - interrupts: Should contain the IRQ line for the ADC. > + - clocks: phandles to clocks. > + - clock-names: tuple listing clock names. > + Required elements: "adc_clk", "adc_op_clk". "adc_clk" is the peripheral > + clock, "adc_clk" is the sampling clock. > + - vref-supply: Supply used as reference for conversions. > + > +Optional properties: > + - vddana-supply: Supply for the adc device. What makes a supply optional? If chip dependent, then then you need a more specific compatible string. Rob