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Wed, 13 Apr 2022 11:23:28 -0700 (PDT) Date: Wed, 13 Apr 2022 21:23:27 +0300 From: Vladimir Oltean To: Leo Li Cc: Shawn Guo , "linux-arm-kernel@lists.infradead.org" , "linux-kernel@vger.kernel.org" , Biwen Li Subject: Re: [PATCH v3 3/8] arm64: dts: ls1028a: add flextimer based pwm nodes Message-ID: <20220413182327.lbemqze46eq7ulfn@skbuf> References: <20211214093240.23320-1-leoyang.li@nxp.com> <20211214093240.23320-4-leoyang.li@nxp.com> <20220413163306.hp5qyxxgdlekczet@skbuf> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20220413_112332_136200_3A1F6D6D X-CRM114-Status: GOOD ( 11.46 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org On Wed, Apr 13, 2022 at 06:07:20PM +0000, Leo Li wrote: > > arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi:1210.21-1219.5: Warning > > (unique_unit_address): /soc/pwm@2800000: duplicate unit-address (also > > used in node /soc/timer@2800000) > > arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi:1221.21-1230.5: Warning > > (unique_unit_address): /soc/pwm@2810000: duplicate unit-address (also > > used in node /soc/timer@2810000) > > Well, this is similar situation as pcie. The flextimer controller can > be used as timer, PWM or alarm. We have separate drivers and bindings > for these modes which resulted in different nodes for the same > controller. I think the mfd framework can address the situation where multiple drivers, with multiple functionalities, want access to the same memory region? _______________________________________________ linux-arm-kernel mailing list linux-arm-kernel@lists.infradead.org http://lists.infradead.org/mailman/listinfo/linux-arm-kernel