Date: Mon, 02 Feb 2015 12:18:55 -0800 From: Nathan Whitehorn <nwhitehorn@freebsd.org> To: Ian Lepore <ian@freebsd.org> Cc: Luiz Otavio O Souza <loos@freebsd.org>, svn-src-head@freebsd.org, svn-src-all@freebsd.org, src-committers@freebsd.org Subject: Re: svn commit: r278108 - head/sys/dev/gpio Message-ID: <54CFDBAF.2010003@freebsd.org> In-Reply-To: <1422907737.15718.291.camel@freebsd.org> References: <201502021922.t12JMZDE040713@svn.freebsd.org> <54CFCEF5.70200@freebsd.org> <1422907737.15718.291.camel@freebsd.org>
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On 02/02/15 12:08, Ian Lepore wrote: > On Mon, 2015-02-02 at 11:24 -0800, Nathan Whitehorn wrote: >> Please don't condition things like this on FDT. They are useful on Open >> Firmware systems too. >> -Nathan >> > > Is there something defined for OFW? The gpio code needs to work on > hint-based (not-FDT and not-OFW) mips systems too. There isn't right now, so far as I'm aware, but there should be. -Nathan > -- Ian > > >> On 02/02/15 11:22, Luiz Otavio O Souza wrote: >>> Author: loos >>> Date: Mon Feb 2 19:22:34 2015 >>> New Revision: 278108 >>> URL: https://svnweb.freebsd.org/changeset/base/278108 >>> >>> Log: >>> Register the GPIO controller device reference on xref table for FDT systems. >>> >>> Modified: >>> head/sys/dev/gpio/gpiobus.c >>> head/sys/dev/gpio/gpiobusvar.h >>> head/sys/dev/gpio/ofw_gpiobus.c >>> >>> Modified: head/sys/dev/gpio/gpiobus.c >>> ============================================================================== >>> --- head/sys/dev/gpio/gpiobus.c Mon Feb 2 19:00:18 2015 (r278107) >>> +++ head/sys/dev/gpio/gpiobus.c Mon Feb 2 19:22:34 2015 (r278108) >>> @@ -143,6 +143,9 @@ gpiobus_attach_bus(device_t dev) >>> device_delete_child(dev, busdev); >>> return (NULL); >>> } >>> +#ifdef FDT >>> + ofw_gpiobus_register_provider(dev); >>> +#endif >>> bus_generic_attach(dev); >>> >>> return (busdev); >>> @@ -152,6 +155,10 @@ int >>> gpiobus_detach_bus(device_t dev) >>> { >>> >>> +#ifdef FDT >>> + ofw_gpiobus_unregister_provider(dev); >>> +#endif >>> + >>> return (bus_generic_detach(dev)); >>> } >>> >>> >>> Modified: head/sys/dev/gpio/gpiobusvar.h >>> ============================================================================== >>> --- head/sys/dev/gpio/gpiobusvar.h Mon Feb 2 19:00:18 2015 (r278107) >>> +++ head/sys/dev/gpio/gpiobusvar.h Mon Feb 2 19:22:34 2015 (r278108) >>> @@ -93,6 +93,8 @@ gpio_map_gpios(device_t bus, phandle_t d >>> } >>> >>> device_t ofw_gpiobus_add_fdt_child(device_t, phandle_t); >>> +void ofw_gpiobus_register_provider(device_t); >>> +void ofw_gpiobus_unregister_provider(device_t); >>> #endif >>> int gpio_check_flags(uint32_t, uint32_t); >>> device_t gpiobus_attach_bus(device_t); >>> >>> Modified: head/sys/dev/gpio/ofw_gpiobus.c >>> ============================================================================== >>> --- head/sys/dev/gpio/ofw_gpiobus.c Mon Feb 2 19:00:18 2015 (r278107) >>> +++ head/sys/dev/gpio/ofw_gpiobus.c Mon Feb 2 19:22:34 2015 (r278108) >>> @@ -217,6 +217,24 @@ ofw_gpiobus_parse_gpios(struct gpiobus_s >>> return (0); >>> } >>> >>> +void >>> +ofw_gpiobus_register_provider(device_t provider) >>> +{ >>> + phandle_t node; >>> + >>> + node = ofw_bus_get_node(provider); >>> + OF_device_register_xref(OF_xref_from_node(node), provider); >>> +} >>> + >>> +void >>> +ofw_gpiobus_unregister_provider(device_t provider) >>> +{ >>> + phandle_t node; >>> + >>> + node = ofw_bus_get_node(provider); >>> + OF_device_register_xref(OF_xref_from_node(node), NULL); >>> +} >>> + >>> static struct ofw_gpiobus_devinfo * >>> ofw_gpiobus_setup_devinfo(device_t dev, phandle_t node) >>> { >>> >> >> > >
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