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>

diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c
index 791ea565fdc191b216894d2f6fd2fb563a8888df..8d721c23f801332157957506790d088e60e0a7cf 100644 (file)
--- 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,