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Date: Tue, 15 Dec 2020 19:45:16 +0200 From: Andy Shevchenko <andy.shevchenko@...il.com> To: Calvin Johnson <calvin.johnson@....nxp.com> Cc: Grant Likely <grant.likely@....com>, "Rafael J . Wysocki" <rafael@...nel.org>, Jeremy Linton <jeremy.linton@....com>, Andrew Lunn <andrew@...n.ch>, Florian Fainelli <f.fainelli@...il.com>, Russell King - ARM Linux admin <linux@...linux.org.uk>, Cristi Sovaiala <cristian.sovaiala@....com>, Florin Laurentiu Chiculita <florinlaurentiu.chiculita@....com>, Ioana Ciornei <ioana.ciornei@....com>, Madalin Bucur <madalin.bucur@....nxp.com>, Heikki Krogerus <heikki.krogerus@...ux.intel.com>, Marcin Wojtas <mw@...ihalf.com>, Pieter Jansen Van Vuuren <pieter.jansenvv@...boosystems.io>, Jon <jon@...id-run.com>, "linux.cj" <linux.cj@...il.com>, Laurentiu Tudor <laurentiu.tudor@....com>, Diana Madalina Craciun <diana.craciun@....com>, ACPI Devel Maling List <linux-acpi@...r.kernel.org>, Linux Kernel Mailing List <linux-kernel@...r.kernel.org>, linux-arm Mailing List <linux-arm-kernel@...ts.infradead.org>, netdev <netdev@...r.kernel.org>, Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, Bartosz Golaszewski <bgolaszewski@...libre.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>, Randy Dunlap <rdunlap@...radead.org> Subject: Re: [net-next PATCH v2 10/14] device property: Introduce fwnode_get_id() On Tue, Dec 15, 2020 at 6:44 PM Calvin Johnson <calvin.johnson@....nxp.com> wrote: > > Using fwnode_get_id(), get the reg property value for DT node > and get the _ADR object value for ACPI node. and -> or ... > +/** > + * fwnode_get_id - Get the id of a fwnode. > + * @fwnode: firmware node > + * @id: id of the fwnode > + * > + * Returns 0 on success or a negative errno. > + */ > +int fwnode_get_id(struct fwnode_handle *fwnode, u32 *id) > +{ > + unsigned long long adr; > + acpi_status status; > + > + if (is_of_node(fwnode)) { > + return of_property_read_u32(to_of_node(fwnode), "reg", id); ACPI nodes can hold reg property as well. I would rather think about ret = fwnode_property_read_u32(fwnode, "reg", id) if (!(ret && is_acpi_node(fwnode))) return ret; > + } else if (is_acpi_node(fwnode)) { Redundant 'else' > + status = acpi_evaluate_integer(ACPI_HANDLE_FWNODE(fwnode), > + METHOD_NAME__ADR, NULL, &adr); > + if (ACPI_FAILURE(status)) > + return -ENODATA; I'm wondering if it compiles when CONFIG_ACPI=n. > + *id = (u32)adr; > + return 0; > + } > + return -EINVAL; > +} -- With Best Regards, Andy Shevchenko
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