From nobody Thu Oct 9 20:22:52 2025 Received: from mout-p-202.mailbox.org (mout-p-202.mailbox.org [80.241.56.172]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id B0893482FF for ; Mon, 16 Jun 2025 15:40:37 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=80.241.56.172 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750088439; cv=none; b=gBwlqJLKUg3EvF9b6XPgBT+lpKnCwlCE1L3k9RsQa5dAtCVAzaiiGy3wWjEdvqTg5H7Ld0nwrQ6WXN5LW517Qs43pwlKe4HOjrRFyiVsIN+vQfB8369Q0raigj69Fa9HBzhRVvSqkizZkzcKMMu+d/W/PUwFbd4I4DQKlJUMqiU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1750088439; c=relaxed/simple; bh=y8LWt9HRv7KyRtBYLPqa8+GDokQcV8+yboEXU+KwbIU=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=DdmWvzk8Qn+XR6b0SkP3pUpiQr1I5ej42+F8l4mWsHbZXBFn5KXgfT+Gqf9rFkZkKcApTuRDdTqOSMpzEhfi/sXldI8/7LfOcujKz6N1X+HpH8hDHY8lMpmTya0mcWqr/Dju8OyIx9ulspvYrNzSX1BkOtLLbblz26FZNi5r63k= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org; spf=pass smtp.mailfrom=mailbox.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=d4F405nB; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b=VK38iCyK; arc=none smtp.client-ip=80.241.56.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=reject dis=none) header.from=mailbox.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=mailbox.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="d4F405nB"; dkim=pass (2048-bit key) header.d=mailbox.org header.i=@mailbox.org header.b="VK38iCyK" Received: from smtp102.mailbox.org (smtp102.mailbox.org [10.196.197.102]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mout-p-202.mailbox.org (Postfix) with ESMTPS id 4bLZ2q4xzmz9spn; Mon, 16 Jun 2025 17:40:35 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1750088435; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=i0dyI4MRX18W1XQPVub/atygkpPpTT9XkNbCtuNLz8U=; b=d4F405nBtgaidEOWwt0/9Ijnres1SntnusICovssYK/05rh985VqVC5tSbhcmmUGY+V/fB sVq19pyBzBfSh7jOkhXiNzq9y5lA6pGqHOKgzSrilewfT5Wye90YLP7AA3dJzEjvc5fmhD /4FSb0Z8Ywt/VLDMjahcnCTnEaFfbux/nCIFZpPjWGtHmdJ2vrfHj3HoCeR7NbezZRYTup ICHIqdao5mUaALCxihA/0oG++809d/mH+xoyiknb11WnWZ/JPeQFHt8yTLUeFbaCo5Mtdj IbTeZZlch9i840NYZ8++jkmEMzxTbBPn25kiYoXBPhbWXtrKl37DPfJEPYaa4Q== From: Marek Vasut DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mailbox.org; s=mail20150812; t=1750088433; h=from:from:reply-to:subject:subject:date:date:message-id:message-id: to:to:cc:cc:mime-version:mime-version: content-transfer-encoding:content-transfer-encoding; bh=i0dyI4MRX18W1XQPVub/atygkpPpTT9XkNbCtuNLz8U=; b=VK38iCyKphvhZzQkyIYlP7iil1wpU9+Y6B1UoGLZZ+W+aKmm+ZM0mtbrXq3yqAvzV1oxE3 bwU93R6S5CAcnchdt+ZMFx2hNogebMJbYZB4iJHhtLPewPF3/Q9ZkAag9zRCcJ/pGWkXcR xpqp2NXdp0JF0XZ/arh4x+TCmqMhIbnTQMlji4I5Iwjt0GH8CKwIqUa/wr4qlAohuqM0no KHMpQddpXi64Ci+yHV9ikJBjkdyi6sU0lTVEo4QIwxZoEroX6c9qrUCHzRtQ9Y4fBRhwtk zt79AHZ6RWTbWbPPX4uK/Y6euHgVPbTa2CE9GWJUtLp+Nn7Us/cW7DjCQdcYmA== To: linux-arm-kernel@lists.infradead.org Cc: Dave Stevenson , Marek Vasut , Liam Girdwood , Mark Brown , linux-kernel@vger.kernel.org Subject: [PATCH] regulator: rpi-panel-v2: Add shutdown hook Date: Mon, 16 Jun 2025 17:40:07 +0200 Message-ID: <20250616154018.430004-1-marek.vasut+renesas@mailbox.org> 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 X-MBO-RS-META: izkkms45zo414kq375membxy8gh3oueu X-MBO-RS-ID: db10599e07852c9faa4 Content-Type: text/plain; charset="utf-8" From: Dave Stevenson Add shutdown hook so that the panel gets powered off with the system. Signed-off-by: Dave Stevenson Signed-off-by: Marek Vasut --- Cc: Dave Stevenson Cc: Liam Girdwood Cc: Mark Brown Cc: linux-kernel@vger.kernel.org --- drivers/regulator/rpi-panel-v2-regulator.c | 11 +++++++++++ 1 file changed, 11 insertions(+) diff --git a/drivers/regulator/rpi-panel-v2-regulator.c b/drivers/regulator= /rpi-panel-v2-regulator.c index c506fd699d57..30b78aa75ee3 100644 --- a/drivers/regulator/rpi-panel-v2-regulator.c +++ b/drivers/regulator/rpi-panel-v2-regulator.c @@ -89,9 +89,19 @@ static int rpi_panel_v2_i2c_probe(struct i2c_client *i2c) if (ret) return dev_err_probe(&i2c->dev, ret, "Failed to create gpiochip\n"); =20 + i2c_set_clientdata(i2c, regmap); + return devm_pwmchip_add(&i2c->dev, pc); } =20 +static void rpi_panel_v2_i2c_shutdown(struct i2c_client *client) +{ + struct regmap *regmap =3D i2c_get_clientdata(client); + + regmap_write(regmap, REG_PWM, 0); + regmap_write(regmap, REG_POWERON, 0); +} + static const struct of_device_id rpi_panel_v2_dt_ids[] =3D { { .compatible =3D "raspberrypi,touchscreen-panel-regulator-v2" }, { }, @@ -105,6 +115,7 @@ static struct i2c_driver rpi_panel_v2_regulator_driver = =3D { .of_match_table =3D rpi_panel_v2_dt_ids, }, .probe =3D rpi_panel_v2_i2c_probe, + .shutdown =3D rpi_panel_v2_i2c_shutdown, }; =20 module_i2c_driver(rpi_panel_v2_regulator_driver); --=20 2.47.2