From mboxrd@z Thu Jan 1 00:00:00 1970 From: Arnd Bergmann Subject: Re: [PATCHv6 3/4] iio: devicetree: Add DT binding documentation for Exynos3250 ADC Date: Fri, 18 Jul 2014 18:33:06 +0200 Message-ID: <5835825.JtcDoyOP8b@wuerfel> References: <1405663186-26464-1-git-send-email-cw00.choi@samsung.com> <6104032.PNRl85V92G@wuerfel> Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7Bit Return-path: In-Reply-To: Sender: linux-doc-owner@vger.kernel.org To: Chanwoo Choi Cc: Chanwoo Choi , jic23@kernel.org, naveen krishna , Kukjin Kim , Rob Herring , pawel.moll@arm.com, Mark Rutland , ijc+devicetree@hellion.org.uk, Kumar Gala , rdunlap@infradead.org, Kyungmin Park , Tomasz Figa , linux-iio@vger.kernel.org, linux-samsung-soc , linux-kernel , linux-arm-kernel , devicetree , linux-doc@vger.kernel.org List-Id: devicetree@vger.kernel.org On Saturday 19 July 2014 01:23:15 Chanwoo Choi wrote: > If don't add new compatible including specific exynos version, > I would add new 'adc-needs-sclk' property with existing 'exynos-adc-v2' > compatible name. > > > Dear Naveen, Tomasz, > > If existing exynos-adc driver add just one property for 'sclk_adc' > as following, exynos-adc could not include the exynos version > in compatible name. > > I need your opinion about it. > > adc: adc@126C0000 { > compatible = "samsung,exynos-adc-v2"; > reg = <0x126C0000 0x100>, <0x10020718 0x4>; > interrupts = <0 137 0>; > clock-names = "adc", "sclk_adc"; > clocks = <&cmu CLK_TSADC>, <&cmu CLK_SCLK_TSADC>; > + adc-needs-sclk; > #io-channel-cells = <1>; > io-channel-ranges; > } How about just making it an optional clock? That would be much easier because then you can simply see if the clock itself is there and use it, or otherwise ignore it. Arnd