The ili9882t is a TDDI IC ((Touch with Display Driver)). It requires the
panel reset gpio to be high before i2c commands. Use a longer delay in
post_power_delay_ms to ensure the poweron sequence.
Signed-off-by: Cong Yang <yangcong5@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>
---
drivers/hid/i2c-hid/i2c-hid-of-goodix.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/hid/i2c-hid/i2c-hid-of-goodix.c b/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
index 0060e3dcd775..c5870b683a26 100644
--- a/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
+++ b/drivers/hid/i2c-hid/i2c-hid-of-goodix.c
@@ -101,8 +101,14 @@ static const struct goodix_i2c_hid_timing_data goodix_gt7375p_timing_data = {
.post_gpio_reset_delay_ms = 180,
};
+static const struct goodix_i2c_hid_timing_data ilitek_ili9882t_timing_data = {
+ .post_power_delay_ms = 200,
+ .post_gpio_reset_delay_ms = 180,
+};
+
static const struct of_device_id goodix_i2c_hid_of_match[] = {
{ .compatible = "goodix,gt7375p", .data = &goodix_gt7375p_timing_data },
+ { .compatible = "ilitek,ili9882t", .data = &ilitek_ili9882t_timing_data },
{ }
};
MODULE_DEVICE_TABLE(of, goodix_i2c_hid_of_match);
--
2.25.1
