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path: root/drivers/acpi/arm64/agdi.c
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2023-06-08ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init()Sudeep Holla
Move all of the ARM-specific initialization into one function namely acpi_arm_init(), so it is not necessary to modify/update bus.c every time a new piece of it is added. Cc: Lorenzo Pieralisi <lpieralisi@kernel.org> Cc: Rafael J. Wysocki <rafael@kernel.org> Suggested-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Reviewed-by: Hanjun Guo <guohanjun@huawei.com> Link: https://lore.kernel.org/r/CAJZ5v0iBZRZmV_oU+VurqxnVMbFN_ttqrL=cLh0sUH+=u0PYsw@mail.gmail.com Signed-off-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Acked-by: Rafael J. Wysocki <rafael@kernel.org> Reviewed-by: Shaoqin Huang <shahuang@redhat.com> Link: https://lore.kernel.org/r/20230606093531.2746732-1-sudeep.holla@arm.com Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2023-04-17ACPI: AGDI: Improve error reporting for problems during .remove()Uwe Kleine-König
Returning an error value in a platform driver's remove callback results in a generic error message being emitted by the driver core, but otherwise it doesn't make a difference. The device goes away anyhow. So instead of triggering the generic platform error message, emit a more helpful message if a problem occurs and return 0 to suppress the generic message. This patch is a preparation for making platform remove callbacks return void. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Reviewed-by: Lorenzo Pieralisi <lpieralisi@kernel.org> Link: https://lore.kernel.org/r/20221014160623.467195-1-u.kleine-koenig@pengutronix.de Signed-off-by: Will Deacon <will@kernel.org>
2022-05-06ACPI: AGDI: Fix missing prototype warning for acpi_agdi_init()Ilkka Koskinen
When building with W=1, we get the following warning: drivers/acpi/arm64/agdi.c:88:13: warning: no previous prototype for ‘acpi_agdi_init’ [-Wmissing-prototypes] void __init acpi_agdi_init(void) Include AGDI driver's header file to pull in the prototype definition for acpi_agdi_init() to get rid of the compiler warning Fixes: a2a591fb76e6 ("ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device") Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2022-03-10ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset deviceIlkka Koskinen
ACPI for Arm Components 1.1 Platform Design Document v1.1 [0] specifices Arm Generic Diagnostic Device Interface (AGDI). It allows an admin to issue diagnostic dump and reset via an SDEI event or an interrupt. This patch implements SDEI path. [0] https://developer.arm.com/documentation/den0093/latest/ Signed-off-by: Ilkka Koskinen <ilkka@os.amperecomputing.com> Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk> Acked-by: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>