diff options
| author | Hans de Goede <hansg@kernel.org> | 2025-07-25 23:52:59 +0200 |
|---|---|---|
| committer | Ilpo Järvinen <ilpo.jarvinen@linux.intel.com> | 2025-08-19 11:37:45 +0300 |
| commit | 30359c239ba8394c8e774151d26914db18dc4976 (patch) | |
| tree | 8f6d4e936180bf0dc149c6150d3beab3a33fa7d2 /drivers/platform/x86/intel/int3472/discrete.c | |
| parent | f11f8948a826afba66355302ba7e4b3e36333038 (diff) | |
platform/x86: int3472: Increase ov08x40 handshake GPIO delay to 45 ms
On HP laptops with an ov08x40 sensor the 25 ms delay coming from Intel's
out of tree drivers is not enough. Testing has confirmed that 45 ms does
work.
Add a quirk to the int3472_gpio_map[] to increase the delay to 45 ms to fix
probing of the ov08x40 sensor failing on these laptops.
Note this only impacts laptops which actually use an ov08x40 sensor with
a handshake GPIO.
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2333331
Signed-off-by: Hans de Goede <hansg@kernel.org>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Link: https://lore.kernel.org/r/20250725215259.402796-4-hansg@kernel.org
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/intel/int3472/discrete.c')
| -rw-r--r-- | drivers/platform/x86/intel/int3472/discrete.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c index 791ea565fdc1..8d721c23f801 100644 --- a/drivers/platform/x86/intel/int3472/discrete.c +++ b/drivers/platform/x86/intel/int3472/discrete.c @@ -157,6 +157,13 @@ static const struct int3472_gpio_map int3472_gpio_map[] = { .type_to = INT3472_GPIO_TYPE_RESET, .con_id = "enable", }, + { /* ov08x40's handshake pin needs a 45 ms delay on some HP laptops */ + .hid = "OVTI08F4", + .type_from = INT3472_GPIO_TYPE_HANDSHAKE, + .type_to = INT3472_GPIO_TYPE_HANDSHAKE, + .con_id = "dvdd", + .enable_time_us = 45 * USEC_PER_MSEC, + }, }; static void int3472_get_con_id_and_polarity(struct int3472_discrete_device *int3472, u8 *type, |