github-mirror/linux
1
0
Fork 0
mirror of https://github.com/torvalds/linux.git synced 2026-07-27 17:47:41 +02:00
Code Issues Actions Packages Projects Releases Wiki Activity Graph

thermal/drivers/qcom/tsens: Disable wakeup interrupt setup on automotive targets

Browse Source 
Add a no_irq_wake flag to struct tsens_plat_data to allow platforms
to control whether TSENS interrupts should be configured as wakeup
sources.

Create a new data_automotive structure and add compatible strings for
automotive TSENS variants (SA8775P, SA8255P) with wakeup interrupts
disabled.

Automotive platforms can enter a low-power parking suspend state where the
application processors and thermal mitigation paths are not active. In this
state, waking the system due to TSENS threshold interrupts does not enable
useful thermal action, but it does repeatedly break suspend residency and
increase battery drain.

Allow these automotive variants to keep TSENS monitoring enabled during
normal runtime while opting out of TSENS wakeup interrupts during suspend,
so the system can remain in low power until ignition/resume.

Signed-off-by: Priyansh Jain <priyansh.jain@oss.qualcomm.com>
Signed-off-by: Daniel Lezcano <daniel.lezcano@kernel.org>
Link: https://patch.msgid.link/20260601-tsens_interrupt_wake_control-v2-2-ce9570946abd@oss.qualcomm.com
This commit is contained in:
Priyansh Jain 2026-06-01 12:07:57 +05:30 committed by Daniel Lezcano
parent c665de5eeb
commit 968098b4ca
No known key found for this signature in database
GPG Key ID: A832238A2A4FE84F
3 changed files with 20 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/thermal/qcom/tsens-v2.c
View File

@ -306,3 +306,11 @@ struct tsens_plat_data data_8996 = {
.feat = &tsens_v2_feat,
.fields = tsens_v2_regfields,
};
/* Do not enable wakeup capable interrupts for automotive platforms */
struct tsens_plat_data data_automotive_v2 = {
.ops = &ops_generic_v2,
.feat = &tsens_v2_feat,
.fields = tsens_v2_regfields,
.no_irq_wake = true,
};

8
drivers/thermal/qcom/tsens.c
View File

@ -1212,6 +1212,12 @@ static const struct of_device_id tsens_table[] = {
}, {
.compatible = "qcom,tsens-v2",
.data = &data_tsens_v2,
}, {
.compatible = "qcom,sa8775p-tsens",
.data = &data_automotive_v2,
}, {
.compatible = "qcom,sa8255p-tsens",
.data = &data_automotive_v2,
},
{}
};
@ -1424,7 +1430,7 @@ static int tsens_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, priv);
device_init_wakeup(dev, true);
device_init_wakeup(dev, !data->no_irq_wake);
if (!priv->ops || !priv->ops->init || !priv->ops->get_temp)
return -EINVAL;

5
drivers/thermal/qcom/tsens.h
View File

@ -532,6 +532,7 @@ struct tsens_features {
* @hw_ids: Subset of sensors ids supported by platform, if not the first n
* @feat: features of the IP
* @fields: bitfield locations
* @no_irq_wake: if set, TSENS interrupts will not be configured as wakeup sources
*/
struct tsens_plat_data {
const u32 num_sensors;
@ -539,6 +540,7 @@ struct tsens_plat_data {
unsigned int *hw_ids;
struct tsens_features *feat;
const struct reg_field *fields;
bool no_irq_wake;
};
/**
@ -676,4 +678,7 @@ extern const struct tsens_plat_data data_ipq5018;
extern struct tsens_plat_data data_8996, data_ipq8074, data_tsens_v2;
extern const struct tsens_plat_data data_ipq5332, data_ipq5424;
/* TSENS automotive targets */
extern struct tsens_plat_data data_automotive_v2;
#endif /* __QCOM_TSENS_H__ */