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platform/x86: int3472: Increase ov08x40 handshake GPIO delay to 45 ms

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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>
This commit is contained in:
Hans de Goede 2025-07-25 23:52:59 +02:00 committed by Ilpo Järvinen
parent f11f8948a8
commit 30359c239b
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1 changed files with 7 additions and 0 deletions
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7
drivers/platform/x86/intel/int3472/discrete.c
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@ -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,