[PATCH 2/2] platform/x86: int3472: Increase ov08x40 handshake GPIO delay to 45 ms

[Hans de Goede <hansg@kernel.org>]

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>
---
 drivers/platform/x86/intel/int3472/discrete.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/platform/x86/intel/int3472/discrete.c b/drivers/platform/x86/intel/int3472/discrete.c
index bc442944be7f..e7ca1d83f45a 100644
--- a/drivers/platform/x86/intel/int3472/discrete.c
+++ b/drivers/platform/x86/intel/int3472/discrete.c
@@ -149,6 +149,12 @@ static const struct int3472_gpio_map int3472_gpio_map[] = {
 	  false, "vdd", GPIO_REGULATOR_ENABLE_TIME },
 	/* ov7251 driver / DT-bindings expect "enable" as con_id for reset */
 	{ "INT347E", INT3472_GPIO_TYPE_RESET, INT3472_GPIO_TYPE_RESET, false, "enable" },
+	/*
+	 * ov08x40 sensor with a handshake pin needs a 45 ms delay on some HP laptops
+	 * https://bugzilla.redhat.com/show_bug.cgi?id=2333331
+	 */
+	{ "OVTI08F4", INT3472_GPIO_TYPE_HANDSHAKE, INT3472_GPIO_TYPE_HANDSHAKE,
+	  false, "dvdd", 45 * USEC_PER_MSEC },
 };
 
 static void int3472_get_con_id_and_polarity(struct int3472_discrete_device *int3472, u8 *type,
-- 
2.49.0