From: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
To: jikos@kernel.org, benjamin.tissoires@redhat.com,
dianders@chromium.org, mka@chromium.org,
dmitry.torokhov@gmail.com, hsinyi@google.com
Cc: linux-input@vger.kernel.org, linux-kernel@vger.kernel.org,
devicetree@vger.kernel.org,
Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Subject: [PATCH] HID: i2c-hid: goodix: Add ili9882t timing
Date: Fri, 19 May 2023 17:01:49 +0800 [thread overview]
Message-ID: <20230519090149.4407-1-yangcong5@huaqin.corp-partner.google.com> (raw)
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@huaqin.corp-partner.google.com>
---
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
next reply other threads:[~2023-05-19 9:02 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2023-05-19 9:01 Cong Yang [this message]
2023-05-19 14:01 ` [PATCH] HID: i2c-hid: goodix: Add ili9882t timing Doug Anderson
2023-05-20 5:06 ` [v2 0/2] " Cong Yang
2023-05-20 5:06 ` [v2 1/2] HID: i2c-hid: elan: " Cong Yang
2023-05-22 15:27 ` Doug Anderson
2023-05-30 21:24 ` Dmitry Torokhov
2023-05-20 5:06 ` [v2 2/2] dt-bindings: input: touchscreen: Add ilitek 9882T touchscreen chip Cong Yang
2023-05-22 15:33 ` Doug Anderson
2023-05-30 11:56 ` Krzysztof Kozlowski
2023-05-30 16:58 ` Doug Anderson
[not found] ` <CAHwB_N+ZpCAYftCLRwyNo2wCca+JHfGJc0_rJ=jwJcU0mbG=Dw@mail.gmail.com>
2023-06-01 15:40 ` Doug Anderson
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