From nobody Sun Feb 8 07:39:23 2026 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-1.web.codeaurora.org [10.30.226.201]) (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 81FC6253F3A; Mon, 4 Aug 2025 12:08:36 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=10.30.226.201 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754309316; cv=none; b=iajIIfG9R8KUEITuByAhHUI7Nuq00y+umBCYweJ7oX+jRwecSKlxMWgsVFk8Rg0xTAJYgFfIY5WyXgEE559Aoj11EWBRT6EAtgandZS+6cNBnPccQO5qRS4t6ixV5EQ0DN+ZrosRK6F/0IILF3L6qYYLgFHVqxIy0pQGAw/5QgU= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1754309316; c=relaxed/simple; bh=5i8ksXRMF4rm+8efDBv2Ptfs9c/P1ws+pW5IDHMDSiY=; h=From:To:Cc:Subject:Date:Message-ID:MIME-Version; b=tN1GXlsFij2vVJGIPjMqkq9zjzubdbg2BORtgu8GoZpN+/b3oNYL4y4owBCE2oMgf6Jh7ttSfr/YDHvRpD5kR2wcexrsTS5rVM52qfXh/Qea7InZiVEZ/U6s1+m+O4SmN8TPCdqCn6VrJraVy6WS9Tk/FZIUf/dmVPi402o4juA= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=u0nvbXPm; arc=none smtp.client-ip=10.30.226.201 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="u0nvbXPm" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 165F2C4CEF7; Mon, 4 Aug 2025 12:08:34 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1754309316; bh=5i8ksXRMF4rm+8efDBv2Ptfs9c/P1ws+pW5IDHMDSiY=; h=From:To:Cc:Subject:Date:From; b=u0nvbXPmUEkT+f75WNAeRw557UDmTQoiGBO6tDYlSQbZIZyOgQJwwYtDQVui3CiY2 eiyvSkc472/4dc6vrxktLARiVRBeC3BZtCvFKqRq9STuL1DwBSh10iez6RrFvODrIy dnQ84yua7L2iU/i2s9U8ELBPjLXqULy1NsfAOTpec25jhUIoKn2Rkr8W9k3aGRIFf8 zAmFipaG3DIXX4aPUktWKibWtvUUa9KFfncwbAPpaZQ4+mm6QyfpB/r3ix41G+EGTF m9Zv+Bmp8YXjY5O1eoXRjwGaHrAR3qh3mZJa1S81rAxgEeZMo+KZNf0erHOUUEEdXo 8rhCB6vo8Lc1A== From: Hans de Goede To: Lee Jones , Andy Shevchenko Cc: Hans de Goede , linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: [PATCH v2] mfd: intel_soc_pmic_chtdc_ti: Set use_single_read regmap_config flag Date: Mon, 4 Aug 2025 14:08:28 +0200 Message-ID: <20250804120828.309790-1-hansg@kernel.org> X-Mailer: git-send-email 2.49.0 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" Testing has shown that reading multiple registers at once (for 10 bit adc values) does not work. Set the use_single_read regmap_config flag to make regmap split these for is. This should fix temperature opregion accesses done by drivers/acpi/pmic/intel_pmic_chtdc_ti.c and is also necessary for the upcoming drivers for the ADC and battery MFD cells. Fixes: 6bac0606fdba ("mfd: Add support for Cherry Trail Dollar Cove TI PMIC= ") Cc: stable@vger.kernel.org Reviewed-by: Andy Shevchenko Signed-off-by: Hans de Goede --- Changes in v2: - Update comment to: "The hardware does not support reading multiple registers at once" --- drivers/mfd/intel_soc_pmic_chtdc_ti.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/mfd/intel_soc_pmic_chtdc_ti.c b/drivers/mfd/intel_soc_= pmic_chtdc_ti.c index 4c1a68c9f575..6daf33e07ea0 100644 --- a/drivers/mfd/intel_soc_pmic_chtdc_ti.c +++ b/drivers/mfd/intel_soc_pmic_chtdc_ti.c @@ -82,6 +82,8 @@ static const struct regmap_config chtdc_ti_regmap_config = =3D { .reg_bits =3D 8, .val_bits =3D 8, .max_register =3D 0xff, + /* The hardware does not support reading multiple registers at once */ + .use_single_read =3D true, }; =20 static const struct regmap_irq chtdc_ti_irqs[] =3D { --=20 2.49.0