Linux Power Management development
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From: Atharva Tiwari <atharvatiwarilinuxdev@gmail.com>
Cc: Atharva Tiwari <atharvatiwarilinuxdev@gmail.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Len Brown <lenb@kernel.org>, Sven Peter <sven@kernel.org>,
	Janne Grunau <j@jannau.net>, Neal Gompa <neal@gompa.dev>,
	Sebastian Reichel <sre@kernel.org>,
	Andreas Noever <andreas.noever@gmail.com>,
	Mika Westerberg <westeri@kernel.org>,
	Yehezkel Bernat <YehezkelShB@gmail.com>,
	linux-acpi@vger.kernel.org, linux-kernel@vger.kernel.org,
	asahi@lists.linux.dev, linux-arm-kernel@lists.infradead.org,
	linux-pm@vger.kernel.org, linux-usb@vger.kernel.org
Subject: [PATCH] debug
Date: Wed, 12 Aug 2026 11:34:06 -0400	[thread overview]
Message-ID: <20260812153411.1159-1-atharvatiwarilinuxdev@gmail.com> (raw)

Signed-off-by: Atharva Tiwari <atharvatiwarilinuxdev@gmail.com>
---
 drivers/acpi/sbshc.c                | 11 +++++++++--
 drivers/power/supply/macsmc-power.c |  2 ++
 2 files changed, 11 insertions(+), 2 deletions(-)

diff --git a/drivers/acpi/sbshc.c b/drivers/acpi/sbshc.c
index 6bf5c5de5b89..a919be8bff05 100644
--- a/drivers/acpi/sbshc.c
+++ b/drivers/acpi/sbshc.c
@@ -207,6 +207,7 @@ int acpi_smbus_register_callback_global(smbus_alarm_callback callback, void *con
 
 	struct acpi_smb_hc *hc = READ_ONCE(global_hc);
 
+	pr_warn("registered callback\n");
 	mutex_lock(&hc->lock);
 	hc->callback = callback;
 	hc->context = context;
@@ -233,6 +234,7 @@ EXPORT_SYMBOL_GPL(acpi_smbus_unregister_callback_global);
 
 static inline void acpi_smbus_callback(void *context)
 {
+	pr_warn("acpi_smbus_callback\n");
 	struct acpi_smb_hc *hc = context;
 	if (hc->callback)
 		hc->callback(hc->context);
@@ -243,15 +245,20 @@ static int smbus_alarm(void *context)
 	struct acpi_smb_hc *hc = context;
 	union acpi_smb_status status;
 	u8 address;
-	if (smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw))
+	pr_warn("smbus_alarm called\n");
+	if (smb_hc_read(hc, ACPI_SMB_STATUS, &status.raw)) {
+		pr_err("smbus_alarm: cant read status\n");
 		return 0;
+	}
 	/* Check if it is only a completion notify */
 	if (status.fields.done && status.fields.status == SMBUS_OK) {
 		hc->done = true;
 		wake_up(&hc->wait);
 	}
-	if (!status.fields.alarm)
+	if (!status.fields.alarm) {
+		pr_err("no alarm\n");
 		return 0;
+	}
 	mutex_lock(&hc->lock);
 	smb_hc_read(hc, ACPI_SMB_ALARM_ADDRESS, &address);
 	status.fields.alarm = 0;
diff --git a/drivers/power/supply/macsmc-power.c b/drivers/power/supply/macsmc-power.c
index d4614fd728c5..8fb3694ddc58 100644
--- a/drivers/power/supply/macsmc-power.c
+++ b/drivers/power/supply/macsmc-power.c
@@ -927,6 +927,8 @@ static void macsmc_power_acpi_callback(void *context)
 {
 	struct macsmc_power *power = context;
 
+	dev_warn(power->dev, "got interrupt\n");
+
 	power_supply_changed(power->batt);
 	power_supply_changed(power->ac);
 }
-- 
2.43.0


             reply	other threads:[~2026-08-12 15:34 UTC|newest]

Thread overview: 2+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2026-08-12 15:34 Atharva Tiwari [this message]
2026-08-12 15:34 ` [PATCH RESEND v7] thunderbolt: Add device links for Apple T2 NHI Atharva Tiwari

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