From mboxrd@z Thu Jan 1 00:00:00 1970 From: alexandre.belloni@free-electrons.com (Alexandre Belloni) Date: Wed, 23 Dec 2015 11:27:01 +0100 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: <20151223102701.GH8623@piout.net> To: linux-arm-kernel@lists.infradead.org List-Id: linux-arm-kernel.lists.infradead.org On 21/12/2015 at 10:24:08 +0100, Ludovic Desroches wrote : > +++ 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. I think we should not have adc_op_clk but rather have a property like vf610 has fsl,adck-max-frequency. Even better, would be the ability to change it with /sys/bus/iio/devices/iio:deviceX/sampling_frequency -- Alexandre Belloni, Free Electrons Embedded Linux, Kernel and Android engineering http://free-electrons.com