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Mon, 18 Aug 2025 20:49:06 -0700 (PDT) From: Langyan Ye To: dmitry.torokhov@gmail.com, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, jikos@kernel.org, bentiss@kernel.org, dianders@chromium.org Cc: linux-input@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Langyan Ye Subject: [PATCH v1 2/2] HID: i2c-hid: elan: Add parade-tc3408 timing Date: Tue, 19 Aug 2025 11:48:52 +0800 Message-Id: <20250819034852.1230264-3-yelangyan@huaqin.corp-partner.google.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20250819034852.1230264-1-yelangyan@huaqin.corp-partner.google.com> References: <20250819034852.1230264-1-yelangyan@huaqin.corp-partner.google.com> Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset="utf-8" Parade-tc3408 requires reset to pull down time greater than 10ms, so the configuration post_power_delay_ms is 10, and the chipset initial time is required to be greater than 300ms, so the post_gpio_reset_on_delay_ms is set to 300. Signed-off-by: Langyan Ye --- drivers/hid/i2c-hid/i2c-hid-of-elan.c | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/drivers/hid/i2c-hid/i2c-hid-of-elan.c b/drivers/hid/i2c-hid/i2= c-hid-of-elan.c index 3fcff6daa0d3..23826cb808b7 100644 --- a/drivers/hid/i2c-hid/i2c-hid-of-elan.c +++ b/drivers/hid/i2c-hid/i2c-hid-of-elan.c @@ -179,11 +179,19 @@ static const struct elan_i2c_hid_chip_data ilitek_ili= 2901_chip_data =3D { .main_supply_name =3D "vcc33", }; =20 +static const struct elan_i2c_hid_chip_data parade_tc3408_chip_data =3D { + .post_power_delay_ms =3D 10, + .post_gpio_reset_on_delay_ms =3D 100, + .hid_descriptor_address =3D 0x0001, + .main_supply_name =3D "vcc33", +}; + static const struct of_device_id elan_i2c_hid_of_match[] =3D { { .compatible =3D "elan,ekth6915", .data =3D &elan_ekth6915_chip_data }, { .compatible =3D "elan,ekth6a12nay", .data =3D &elan_ekth6a12nay_chip_da= ta }, { .compatible =3D "ilitek,ili9882t", .data =3D &ilitek_ili9882t_chip_data= }, { .compatible =3D "ilitek,ili2901", .data =3D &ilitek_ili2901_chip_data }, + { .compatible =3D "parade,tc3408", .data =3D ¶de_tc3408_chip_data }, { } }; MODULE_DEVICE_TABLE(of, elan_i2c_hid_of_match); --=20 2.34.1