The OCP board used a BlueField's GPIO pin for entering
low power mode. That board was not commercialized and
has been dropped from production so all its code is unused.
The new hardware requirement is to trigger a graceful shutdown
when that GPIO pin is toggled. So replace the unused low power
mode with a graceful shutdown.
Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com>
Reviewed-by: David Thompson <davthompson@nvidia.com>
Link: https://lore.kernel.org/r/20240611134327.30975-1-asmaa@nvidia.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Replace the soft reset with a graceful reboot.
An acpi event will be triggered by the irq in the pwr-mlxbf.c
to trigger the graceful reboot.
Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com>
Link: https://lore.kernel.org/r/20231030203058.8056-1-asmaa@nvidia.com
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Documentation/process/license-rules.rst and checkpatch expect the SPDX
identifier syntax for multiple licenses to use capital "OR". Correct it
to keep consistent format and avoid copy-paste issues.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230823085601.116562-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
sparse reports
drivers/power/reset/pwr-mlxbf.c:19:12: warning: symbol 'rst_pwr_hid' was not declared. Should it be static?
drivers/power/reset/pwr-mlxbf.c:20:12: warning: symbol 'low_pwr_hid' was not declared. Should it be static?
Both rst_pwr_hid and low_pwr_hid are only used in a single function
so they should be local variables.
Fixes: a4c0094fcf ("power: reset: pwr-mlxbf: add BlueField SoC power control driver")
Signed-off-by: Tom Rix <trix@redhat.com>
Acked-by: Asmaa Mnebhi <asmaa@nvidia.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
Add missing include for devm_work_autocancel to fix build error:
drivers/power/reset/pwr-mlxbf.c: In function 'pwr_mlxbf_probe':
drivers/power/reset/pwr-mlxbf.c:67:15: error: implicit declaration of function 'devm_work_autocancel' [-Werror=implicit-function-declaration]
67 | err = devm_work_autocancel(dev, &priv->send_work, pwr_mlxbf_send_work);
| ^~~~~~~~~~~~~~~~~~~~
cc1: all warnings being treated as errors
Fixes: a4c0094fcf ("power: reset: pwr-mlxbf: add BlueField SoC power control driver")
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
This driver supports handling 2 BlueField power states controlled by
GPIO interrupts:
1) chip reset and
2) low power mode
Signed-off-by: Asmaa Mnebhi <asmaa@nvidia.com>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
