From mboxrd@z Thu Jan 1 00:00:00 1970 From: Heiko Stuebner Subject: Re: [PATCH v3 10/13] ARM: dts: rockchip: add saradc support for rv1108 Date: Sun, 13 Aug 2017 14:13:01 +0200 Message-ID: <2309743.33rDFhBfGp@phil> References: <1502422578-30611-1-git-send-email-andy.yan@rock-chips.com> <1502423211-31216-1-git-send-email-andy.yan@rock-chips.com> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: <1502423211-31216-1-git-send-email-andy.yan-TNX95d0MmH7DzftRWevZcw@public.gmane.org> Sender: linux-iio-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Andy Yan Cc: robh+dt-DgEjT+Ai2ygdnm+yROfE0A@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-iio-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, linux-arm-kernel-IAPFreCvJWM7uuMidbF8XUB+6BGkLq7r@public.gmane.org List-Id: devicetree@vger.kernel.org Hi Andy, Am Freitag, 11. August 2017, 11:46:51 CEST schrieb Andy Yan: > Add saradc device tree node for rv1108 soc > > Signed-off-by: Andy Yan > > + adc: adc@1038c000 { > + compatible = "rockchip,rv1108-saradc", "rockchip,rk3399-saradc"; > + reg = <0x1038c000 0x100>; > + interrupts = ; > + #io-channel-cells = <1>; > + io-channel-ranges; What do you need the io-channel-ranges for? I.e. according to the documenation it is meant for when the adc is also a "bus node" and has children that should inherit channels from it. In all saradc uses so far we only have separate nodes referencing the adc controller (like adc-keys etc), so this does not look like it is needed? Heiko