From mboxrd@z Thu Jan 1 00:00:00 1970 From: Tony Lindgren Subject: Re: [PATCH v2 1/1] ARM: DTS: dra72-evm: remove cpsw gpio hogging and add mode-gpios Date: Tue, 20 Oct 2015 09:16:41 -0700 Message-ID: <20151020161640.GD3078@atomide.com> References: <1442847231-23637-1-git-send-email-mugunthanvnm@ti.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <1442847231-23637-1-git-send-email-mugunthanvnm-l0cyMroinI0@public.gmane.org> Sender: devicetree-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Mugunthan V N Cc: linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, devicetree-u79uwXL29TY76Z2rM5mHXA@public.gmane.org, Sekhar Nori List-Id: devicetree@vger.kernel.org * Mugunthan V N [150921 07:58]: > With the current implementation of GPIO hogging and with > gpio-pcf857x is built as module, ethernet doesn't work on boot > and doesn't throw any error/warning to user. Ethernet becomes > operational when inserting gpio-pcf857x module, even this time > there is no error/warning logs to user that ethernet is > operational. > > When using with NFS rootfs and gpio-pcf857x as module, board > doesn't boot as it doesn't get any ip address and doesn't throw > any error/warning. To over come this, now cpsw driver tries to > get mode-gpios. When gpio-pcf857x is built as module it will > throw error, so that user can decide either to built in > gpio-pcf857x to continue with nfs boot or choose alternate rootfs > filesystem like sd/ramdisk. > > When using mmc/ramdisk as root fs, cpsw will probe defer and > re-probes again when gpio-pcf857x module is inserted and ethernet > becomes operational. Applying into omap-for-v4.4/dt thanks. Tony -- To unsubscribe from this list: send the line "unsubscribe devicetree" in the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org More majordomo info at http://vger.kernel.org/majordomo-info.html