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power: reset: pwr-mlxbf: support graceful reboot instead of emergency reset

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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>
This commit is contained in:
Asmaa Mnebhi 2023-10-30 16:30:58 -04:00 committed by Sebastian Reichel
parent b85ea95d08
commit b9afaa069e
1 changed files with 15 additions and 5 deletions
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20
drivers/power/reset/pwr-mlxbf.c
View File

@ -17,11 +17,17 @@
#include <linux/types.h>
struct pwr_mlxbf {
struct work_struct send_work;
struct work_struct reboot_work;
struct work_struct shutdown_work;
const char *hid;
};
static void pwr_mlxbf_send_work(struct work_struct *work)
static void pwr_mlxbf_reboot_work(struct work_struct *work)
{
acpi_bus_generate_netlink_event("button/reboot.*", "Reboot Button", 0x80, 1);
}
static void pwr_mlxbf_shutdown_work(struct work_struct *work)
{
acpi_bus_generate_netlink_event("button/power.*", "Power Button", 0x80, 1);
}
@ -33,10 +39,10 @@ static irqreturn_t pwr_mlxbf_irq(int irq, void *ptr)
struct pwr_mlxbf *priv = ptr;
if (!strncmp(priv->hid, rst_pwr_hid, 8))
emergency_restart();
schedule_work(&priv->reboot_work);
if (!strncmp(priv->hid, low_pwr_hid, 8))
schedule_work(&priv->send_work);
schedule_work(&priv->shutdown_work);
return IRQ_HANDLED;
}
@ -64,7 +70,11 @@ static int pwr_mlxbf_probe(struct platform_device *pdev)
if (irq < 0)
return dev_err_probe(dev, irq, "Error getting %s irq.\n", priv->hid);
err = devm_work_autocancel(dev, &priv->send_work, pwr_mlxbf_send_work);
err = devm_work_autocancel(dev, &priv->shutdown_work, pwr_mlxbf_shutdown_work);
if (err)
return err;
err = devm_work_autocancel(dev, &priv->reboot_work, pwr_mlxbf_reboot_work);
if (err)
return err;