linux/drivers/base/platform.c, branch v5.11

Merge tag 'irqchip-fixes-5.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms into irq/urgent

2021-01-12T20:23:55Z

Pull irqchip fixes from Marc Zyngier: - Fix the MIPS CPU interrupt controller hierarchy - Simplify the PRUSS Kconfig entry - Eliminate trivial build warnings on the MIPS Loongson liointc - Fix error path in devm_platform_get_irqs_affinity() - Turn the BCM2836 IPI irq_eoi callback into irq_ack - Fix initialisation of on-stack msi_alloc_info - Cleanup spurious comma in irq-sl28cpld Link: https://lore.kernel.org/r/20210110110001.2328708-1-maz@kernel.org

driver core: platform: Add extra error check in devm_platform_get_irqs_affinity()

2020-12-22T08:06:38Z

The current check of nvec < minvec for nvec returned from platform_irq_count() will not detect a negative error code in nvec. This is because minvec is unsigned, and, as such, nvec is promoted to unsigned in that check, which will make it a huge number (if it contained -EPROBE_DEFER). In practice, an error should not occur in nvec for the only in-tree user, but add a check anyway. Fixes: e15f2fa959f2 ("driver core: platform: Add devm_platform_get_irqs_affinity()") Reported-by: Dan Carpenter Signed-off-by: John Garry Signed-off-by: Marc Zyngier Link: https://lore.kernel.org/r/1608561055-231244-1-git-send-email-john.garry@huawei.com

Merge tag 'irq-core-2020-12-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

2020-12-15T23:03:31Z

Pull irq updates from Thomas Gleixner: "Generic interrupt and irqchips subsystem updates. Unusually, there is not a single completely new irq chip driver, just new DT bindings and extensions of existing drivers to accomodate new variants! Core: - Consolidation and robustness changes for irq time accounting - Cleanup and consolidation of irq stats - Remove the fasteoi IPI flow which has been proved useless - Provide an interface for converting legacy interrupt mechanism into irqdomains Drivers: - Preliminary support for managed interrupts on platform devices - Correctly identify allocation of MSIs proxyied by another device - Generalise the Ocelot support to new SoCs - Improve GICv4.1 vcpu entry, matching the corresponding KVM optimisation - Work around spurious interrupts on Qualcomm PDC - Random fixes and cleanups" * tag 'irq-core-2020-12-15' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (54 commits) irqchip/qcom-pdc: Fix phantom irq when changing between rising/falling driver core: platform: Add devm_platform_get_irqs_affinity() ACPI: Drop acpi_dev_irqresource_disabled() resource: Add irqresource_disabled() genirq/affinity: Add irq_update_affinity_desc() irqchip/gic-v3-its: Flag device allocation as proxied if behind a PCI bridge irqchip/gic-v3-its: Tag ITS device as shared if allocating for a proxy device platform-msi: Track shared domain allocation irqchip/ti-sci-intr: Fix freeing of irqs irqchip/ti-sci-inta: Fix printing of inta id on probe success drivers/irqchip: Remove EZChip NPS interrupt controller Revert "genirq: Add fasteoi IPI flow" irqchip/hip04: Make IPIs use handle_percpu_devid_irq() irqchip/bcm2836: Make IPIs use handle_percpu_devid_irq() irqchip/armada-370-xp: Make IPIs use handle_percpu_devid_irq() irqchip/gic, gic-v3: Make SGIs use handle_percpu_devid_irq() irqchip/ocelot: Add support for Jaguar2 platforms irqchip/ocelot: Add support for Serval platforms irqchip/ocelot: Add support for Luton platforms irqchip/ocelot: prepare to support more SoC ...

driver core: platform: don't oops in platform_shutdown() on unbound devices

2020-12-13T15:03:42Z

On shutdown the driver core calls the bus' shutdown callback also for unbound devices. A driver's shutdown callback however is only called for devices bound to this driver. Commit 9c30921fe799 ("driver core: platform: use bus_type functions") changed the platform bus from driver callbacks to bus callbacks, so the shutdown function must be prepared to be called without a driver. Add the corresponding check in the shutdown function. Fixes: 9c30921fe799 ("driver core: platform: use bus_type functions") Tested-by: Guenter Roeck Reviewed-by: Uwe Kleine-König Signed-off-by: Dmitry Baryshkov Link: https://lore.kernel.org/r/20201212235533.247537-1-dmitry.baryshkov@linaro.org Signed-off-by: Greg Kroah-Hartman

driver core: platform: Add devm_platform_get_irqs_affinity()

2020-12-11T14:47:51Z

Drivers for multi-queue platform devices may also want managed interrupts for handling HW queue completion interrupts, so add support. The function accepts an affinity descriptor pointer, which covers all IRQs expected for the device. The function is devm class as the only current in-tree user will also use devm method for requesting the interrupts; as such, the function is made as devm as it can ensure ordering of freeing the irq and disposing of the mapping. Signed-off-by: John Garry Signed-off-by: Marc Zyngier Acked-by: Marc Zyngier Link: https://lore.kernel.org/r/1606905417-183214-5-git-send-email-john.garry@huawei.com

driver core: platform: Introduce platform_get_mem_or_io()

2020-12-10T15:31:46Z

There are at least few existing users of the proposed API which retrieves either MEM or IO resource from platform device. Make it common to utilize in the existing and new users. Cc: Eric Auger Cc: Alex Williamson Cc: kvm@vger.kernel.org Cc: linux-usb@vger.kernel.org Cc: Peng Hao Cc: Arnd Bergmann Reviewed-by: Cornelia Huck Signed-off-by: Andy Shevchenko Link: https://lore.kernel.org/r/20201209203642.27648-1-andriy.shevchenko@linux.intel.com Signed-off-by: Greg Kroah-Hartman

driver core: platform: use bus_type functions

2020-12-09T18:33:55Z

This works towards the goal mentioned in 2006 in commit 594c8281f905 ("[PATCH] Add bus_type probe, remove, shutdown methods."). The functions are moved to where the other bus_type functions are defined and renamed to match the already established naming scheme. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20201119124611.2573057-3-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman

driver core: platform: change logic implementing platform_driver_probe

2020-12-09T18:33:55Z

Instead of overwriting the core driver's probe function handle probing devices for drivers loaded by platform_driver_probe() in the platform driver probe function. The intended goal is to not have to change the probe function to simplify converting the platform bus to use bus functions. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20201119124611.2573057-2-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman

driver core: platform: reorder functions

2020-12-09T18:33:55Z

This way all callbacks and structures used to initialize platform_bus_type are defined just before platform_bus_type and in the same order. Also move platform_drv_probe_fail just before it's only user. Signed-off-by: Uwe Kleine-König Link: https://lore.kernel.org/r/20201119124611.2573057-1-u.kleine-koenig@pengutronix.de Signed-off-by: Greg Kroah-Hartman

drivers core: Miscellaneous changes for sysfs_emit

2020-10-02T11:12:07Z

Change additional instances that could use sysfs_emit and sysfs_emit_at that the coccinelle script could not convert. o macros creating show functions with ## concatenation o unbound sprintf uses with buf+len for start of output to sysfs_emit_at o returns with ?: tests and sprintf to sysfs_emit o sysfs output with struct class * not struct device * arguments Miscellanea: o remove unnecessary initializations around these changes o consistently use int len for return length of show functions o use octal permissions and not S_ o rename a few show function names so DEVICE_ATTR_ can be used o use DEVICE_ATTR_ADMIN_RO where appropriate o consistently use const char *output for strings o checkpatch/style neatening Signed-off-by: Joe Perches Link: https://lore.kernel.org/r/8bc24444fe2049a9b2de6127389b57edfdfe324d.1600285923.git.joe@perches.com Signed-off-by: Greg Kroah-Hartman