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Groups > linux.kernel > #1253344
| From | "Rafael J. Wysocki" <rjw@rjwysocki.net> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: [GIT PULL] On-demand device probing |
| Date | 2015-10-22 01:20 +0200 |
| Message-ID | <qmaPM-R6-15@gated-at.bofh.it> (permalink) |
| References | <qjpLk-1t1-13@gated-at.bofh.it> <qlOcx-1rd-1@gated-at.bofh.it> <qlXpx-6nw-23@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
On Wednesday, October 21, 2015 10:55:14 AM Geert Uytterhoeven wrote: > Hi Rafael, > > On Wed, Oct 21, 2015 at 1:34 AM, Rafael J. Wysocki <rjw@rjwysocki.net> wrote: > > On Tuesday, October 20, 2015 09:15:01 AM Rob Herring wrote: > >> On Tue, Oct 20, 2015 at 2:56 AM, Rafael J. Wysocki <rjw@rjwysocki.net> wrote: > >> > ACPI uses platform devices too. In fact, ACPI device objects are enumerated as > >> > platform devices by default now. > >> > >> Okay, I should have grepped for that: > >> drivers/base/platform.c: ACPI_COMPANION_SET(&pdev->dev, NULL); > >> drivers/base/platform.c: len = acpi_device_modalias(dev, buf, > >> PAGE_SIZE -1); > >> drivers/base/platform.c: rc = acpi_device_uevent_modalias(dev, env); > >> drivers/base/platform.c: /* Then try ACPI style match */ > >> drivers/base/platform.c: if (acpi_driver_match_device(dev, drv)) > >> > >> These are all cases which have DT version as well, so we're not really > >> all that different here. There's a few more for DT, but that probably > >> means you have just not hit the problems we have yet. For example, > >> what happens if you have an interrupt line in which the controller is > >> probed after the device connected to the interrupt line? That required > >> resolving irqs in platform_get_irq rather than using static resources > >> to support deferred probe. > > > > We don't have this particular problem, because the IRQ controllers are > > enumerated in a special way. > > What does "in a special way" mean? Can you please be more specific? > > Can you have interrupt controllers that depend on clocks, pin controllers, > and PM domains? Currently, there's no native way to represent those dependencies in ACPI. Thanks, Rafael -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-18 21:40 +0200
Re: [GIT PULL] On-demand device probing Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-18 21:40 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-18 22:00 +0200
Re: [GIT PULL] On-demand device probing David Woodhouse <dwmw2@infradead.org> - 2015-10-19 11:50 +0200
Re: [GIT PULL] On-demand device probing Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-19 12:00 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-19 13:10 +0200
Re: [GIT PULL] On-demand device probing Rob Herring <robh+dt@kernel.org> - 2015-10-19 14:40 +0200
Re: [GIT PULL] On-demand device probing David Woodhouse <dwmw2@infradead.org> - 2015-10-19 14:50 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-19 17:00 +0200
Re: [GIT PULL] On-demand device probing David Woodhouse <dwmw2@infradead.org> - 2015-10-19 17:40 +0200
Re: [GIT PULL] On-demand device probing Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-19 17:50 +0200
Re: [GIT PULL] On-demand device probing Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2015-10-19 20:30 +0200
Re: [GIT PULL] On-demand device probing Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-19 20:50 +0200
Re: [GIT PULL] On-demand device probing Alexandre Courbot <gnurou@gmail.com> - 2015-10-20 01:50 +0200
Re: gpiod API considerations [Was: [GIT PULL] On-demand device probing] Uwe Kleine-König <u.kleine-koenig@pengutronix.de> - 2015-10-20 09:20 +0200
Re: [GIT PULL] On-demand device probing David Woodhouse <dwmw2@infradead.org> - 2015-10-20 13:20 +0200
Re: [GIT PULL] On-demand device probing Rob Herring <robh+dt@kernel.org> - 2015-10-19 18:00 +0200
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-10-19 23:20 +0200
Re: [GIT PULL] On-demand device probing Rob Herring <robh@kernel.org> - 2015-10-20 01:00 +0200
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-10-20 09:30 +0200
Re: [GIT PULL] On-demand device probing Rob Herring <robh@kernel.org> - 2015-10-20 16:20 +0200
Re: [GIT PULL] On-demand device probing Alan Stern <stern@rowland.harvard.edu> - 2015-10-20 16:50 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-20 17:40 +0200
Re: [GIT PULL] On-demand device probing Alan Stern <stern@rowland.harvard.edu> - 2015-10-20 18:10 +0200
Re: [GIT PULL] On-demand device probing Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-20 18:30 +0200
Re: [GIT PULL] On-demand device probing Alan Stern <stern@rowland.harvard.edu> - 2015-10-20 19:20 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-20 21:40 +0200
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-10-21 01:10 +0200
Re: [GIT PULL] On-demand device probing Jean-Francois Moine <moinejf@free.fr> - 2015-10-21 08:20 +0200
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-10-22 02:30 +0200
Re: [GIT PULL] On-demand device probing Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-22 11:20 +0200
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-10-27 05:40 +0100
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-10-21 01:10 +0200
Re: [GIT PULL] On-demand device probing Geert Uytterhoeven <geert@linux-m68k.org> - 2015-10-21 11:00 +0200
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-10-22 01:20 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-19 18:10 +0200
Re: [GIT PULL] On-demand device probing Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-19 14:40 +0200
Re: [GIT PULL] On-demand device probing Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-19 15:20 +0200
Re: [GIT PULL] On-demand device probing Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-19 16:20 +0200
Re: [GIT PULL] On-demand device probing Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-19 16:40 +0200
Re: [GIT PULL] On-demand device probing Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-19 17:10 +0200
Re: [GIT PULL] On-demand device probing Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-19 17:40 +0200
Re: [GIT PULL] On-demand device probing Geert Uytterhoeven <geert@linux-m68k.org> - 2015-10-19 18:30 +0200
Re: [GIT PULL] On-demand device probing Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-19 18:50 +0200
Re: Alternative approach to solve the deferred probe (was: [GIT PULL] On-demand device probing) Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-20 17:50 +0200
Re: Alternative approach to solve the deferred probe Frank Rowand <frowand.list@gmail.com> - 2015-10-21 06:00 +0200
Re: Alternative approach to solve the deferred probe Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-21 10:20 +0200
Re: Alternative approach to solve the deferred probe Frank Rowand <frowand.list@gmail.com> - 2015-10-21 17:40 +0200
Re: Alternative approach to solve the deferred probe Grygorii Strashko <grygorii.strashko@ti.com> - 2015-10-21 19:00 +0200
Re: Alternative approach to solve the deferred probe Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-21 19:30 +0200
Re: Alternative approach to solve the deferred probe Grygorii Strashko <grygorii.strashko@ti.com> - 2015-10-21 20:20 +0200
Re: Alternative approach to solve the deferred probe Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-21 20:30 +0200
Re: Alternative approach to solve the deferred probe Grygorii Strashko <grygorii.strashko@ti.com> - 2015-10-22 17:20 +0200
Re: Alternative approach to solve the deferred probe Frank Rowand <frowand.list@gmail.com> - 2015-10-21 20:10 +0200
Re: Alternative approach to solve the deferred probe Grygorii Strashko <grygorii.strashko@ti.com> - 2015-10-21 20:40 +0200
Re: Alternative approach to solve the deferred probe Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-21 22:40 +0200
Re: Alternative approach to solve the deferred probe Frank Rowand <frowand.list@gmail.com> - 2015-10-22 02:10 +0200
Re: Alternative approach to solve the deferred probe (was: [GIT PULL] On-demand device probing) Mark Brown <broonie@kernel.org> - 2015-10-23 01:40 +0200
Re: [GIT PULL] On-demand device probing Frank Rowand <frowand.list@gmail.com> - 2015-10-21 18:10 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-21 18:30 +0200
Re: [GIT PULL] On-demand device probing Frank Rowand <frowand.list@gmail.com> - 2015-10-21 20:30 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-21 23:10 +0200
Re: [GIT PULL] On-demand device probing Rob Herring <robh+dt@kernel.org> - 2015-10-21 23:20 +0200
Re: [GIT PULL] On-demand device probing Frank Rowand <frowand.list@gmail.com> - 2015-10-22 00:00 +0200
Re: [GIT PULL] On-demand device probing Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-22 11:10 +0200
Re: [GIT PULL] On-demand device probing Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-22 16:40 +0200
Re: [GIT PULL] On-demand device probing Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-22 16:50 +0200
Re: [GIT PULL] On-demand device probing Russell King - ARM Linux <linux@arm.linux.org.uk> - 2015-10-22 17:10 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-23 01:40 +0200
Re: [GIT PULL] On-demand device probing Frank Rowand <frowand.list@gmail.com> - 2015-10-22 21:00 +0200
Re: [GIT PULL] On-demand device probing Greg Kroah-Hartman <gregkh@linuxfoundation.org> - 2015-10-22 21:30 +0200
Re: [GIT PULL] On-demand device probing Tim Bird <tim.bird@sonymobile.com> - 2015-10-23 17:50 +0200
Re: [GIT PULL] On-demand device probing Rob Herring <robh+dt@kernel.org> - 2015-10-23 18:40 +0200
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rjw@rjwysocki.net> - 2015-10-24 15:50 +0200
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-25 00:10 +0200
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rafael@kernel.org> - 2015-10-25 15:00 +0100
Re: [GIT PULL] On-demand device probing Mark Brown <broonie@kernel.org> - 2015-10-26 02:20 +0100
Re: [GIT PULL] On-demand device probing Michael Turquette <mturquette@baylibre.com> - 2015-10-26 12:00 +0100
Re: [GIT PULL] On-demand device probing Tomeu Vizoso <tomeu.vizoso@collabora.com> - 2015-10-26 14:00 +0100
Re: [GIT PULL] On-demand device probing "Rafael J. Wysocki" <rafael@kernel.org> - 2015-10-27 00:40 +0100
Re: [GIT PULL] On-demand device probing "Andrew F. Davis" <afd@ti.com> - 2015-10-25 20:50 +0100
Re: [GIT PULL] On-demand device probing Geert Uytterhoeven <geert@linux-m68k.org> - 2015-10-24 20:00 +0200
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