Commit Graph

4 Commits

Author SHA1 Message Date
Sudeep Holla
fcea0ccf4f ACPI: bus: Consolidate all arm specific initialisation into acpi_arm_init()
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>
2023-06-08 08:07:51 +01:00
Uwe Kleine-König
858a56630a ACPI: AGDI: Improve error reporting for problems during .remove()
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>
2023-04-17 12:26:03 +01:00
Ilkka Koskinen
988d7a1440 ACPI: AGDI: Fix missing prototype warning for acpi_agdi_init()
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: a2a591fb76 ("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>
2022-05-06 20:35:44 +02:00
Ilkka Koskinen
a2a591fb76 ACPI: AGDI: Add driver for Arm Generic Diagnostic Dump and Reset device
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>
2022-03-10 20:17:28 +01:00