linux-next/drivers/platform
Shyam Sundar S K 78296429e2
platform/x86/amd/pmf: Fix to Update HPD Data When ALS is Disabled
If the Ambient Light Sensor (ALS) is disabled, the current code in the PMF
driver does not query for Human Presence Detection (HPD) data in
amd_pmf_get_sensor_info(). As a result, stale HPD data is used by PMF-TA
to evaluate policy conditions, leading to unexpected behavior in the policy
output actions.

To resolve this issue, modify the PMF driver to query HPD data
independently of ALS.

Since user_present is a boolean, modify the current code to return true if
the user is present and false if the user is away or if the sensor is not
detected, and report this status to the PMF TA firmware accordingly.

With this change, amd_pmf_get_sensor_info() now returns void instead of
int.

Fixes: cedecdba60 ("platform/x86/amd/pmf: Get ambient light information from AMD SFH driver")
Co-developed-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Patil Rajesh Reddy <Patil.Reddy@amd.com>
Signed-off-by: Shyam Sundar S K <Shyam-sundar.S-k@amd.com>
Link: https://lore.kernel.org/r/20240730142316.3846259-1-Shyam-sundar.S-k@amd.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2024-08-08 14:53:35 +03:00
..
arm64 platform: arm64: EC_LENOVO_YOGA_C630 should depend on ARCH_QCOM 2024-07-12 11:59:53 +03:00
chrome - New Drivers 2024-07-17 17:42:20 -07:00
cznic platform: cznic: turris-omnia-mcu: fix Kconfig dependencies 2024-07-15 08:08:58 +02:00
goldfish platform/goldfish: goldfish_pipe: add missing MODULE_DESCRIPTION() macro 2024-07-03 16:40:46 +02:00
loongarch platform/loongarch: laptop: Fix possible UAF and simplify generic_acpi_laptop_init() 2022-10-29 16:29:31 +08:00
mellanox virtio: rename find_vqs_info() op to find_vqs() 2024-07-17 05:20:57 -04:00
mips platform: mips: cpu_hwmon: Disable driver on unsupported hardware 2024-06-21 10:22:10 +02:00
olpc platform/olpc: olpc-xo175-ec: Use SPI device ID data to bind device 2023-03-20 14:43:35 +01:00
surface driver core: have match() callback in struct bus_type take a const * 2024-07-03 15:16:54 +02:00
x86 platform/x86/amd/pmf: Fix to Update HPD Data When ALS is Disabled 2024-08-08 14:53:35 +03:00
Kconfig platform: cznic: Add preliminary support for Turris Omnia MCU 2024-07-01 15:46:36 +02:00
Makefile platform-drivers-x86 for v6.11-1 2024-07-17 17:05:21 -07:00