From mboxrd@z Thu Jan 1 00:00:00 1970 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 569592EB875; Mon, 20 Oct 2025 08:52:12 +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=1760950332; cv=none; b=e6t5FxDcAJvNb/2RG3sX2Mry8wzpJEPQj8QVhuWPkSjYJzAmNIZ66YhBYZWxQgR0DyyG7LqulItAjJ2ZTPuFxELQePfk8hrsasU4op42p4+1/xPqKkVt2FsIDb1p19WY9Xyvy61ZMJz77GBoAr2zFKW3BIFjXkBEr2kM4oi46Gg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760950332; c=relaxed/simple; bh=3+kq7/U09g+lg6l/mbSdhdcOsFznfvQ0hxb1HcpN6Fw=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=ilFVQv5fHkiw8gdq8hTosmuHqTcLiSnlsz0IFvNuPqiMvI1NXHgY+HBGurzSrYQqcCk1yAvXC8cuZOZXKb3o2KbnNzWQoiXHTOObRaM8D6SDpYN5q//R6/mRIpZ4uTeoGdaDGpt1zV91zm6c3s9+nZ1yKPKhy0IYKKbWhVF75T0= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=oADbZ2kX; 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="oADbZ2kX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id E0804C116B1; Mon, 20 Oct 2025 08:52:10 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760950331; bh=3+kq7/U09g+lg6l/mbSdhdcOsFznfvQ0hxb1HcpN6Fw=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=oADbZ2kXwOz1p5Gq14LMjM9Kfib6Fa6BhUHZebOUy0iqq0jLWYNFeYtYn4CGggE3N R3F37/LK9zyVLQMqNqB9sh60pfRnsN1S/dPDuCUb0abw2xg9aoicDg8Y7RMZghkaPz RkXiRaTgOgwHxyA5S/U+anizIK2Nm5QkZtNLeapV3AC2XOU4Mziukw9KKiN+5peUW0 X5nlk82uq36kfWYsUqxqEotLQE9JgX2RDKEiQvxFes7TObBmRMm5II+Hh/9AkB+qg/ hTe5Ug1jHz7EYbrtalAH4lkDiWUMf1CM8GrawFcx4yPBqLQ/VOBGRWFR2yZWM2BOXY SHIlagx90BO7A== From: William Breathitt Gray Date: Mon, 20 Oct 2025 17:51:44 +0900 Subject: [PATCH v2 1/3] gpio: 104-idio-16: Define maximum valid register address offset Precedence: bulk X-Mailing-List: linux-gpio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Message-Id: <20251020-fix-gpio-idio-16-regmap-v2-1-ebeb50e93c33@kernel.org> References: <20251020-fix-gpio-idio-16-regmap-v2-0-ebeb50e93c33@kernel.org> In-Reply-To: <20251020-fix-gpio-idio-16-regmap-v2-0-ebeb50e93c33@kernel.org> To: Linus Walleij , Bartosz Golaszewski , Andy Shevchenko Cc: Bartosz Golaszewski , Michael Walle , Ioana Ciornei , Mark Brown , linux-gpio@vger.kernel.org, linux-kernel@vger.kernel.org, William Breathitt Gray , Mark Cave-Ayland , stable@vger.kernel.org X-Mailer: b4 0.14.2 X-Developer-Signature: v=1; a=openpgp-sha256; l=1290; i=wbg@kernel.org; h=from:subject:message-id; bh=3+kq7/U09g+lg6l/mbSdhdcOsFznfvQ0hxb1HcpN6Fw=; b=owGbwMvMwCW21SPs1D4hZW3G02pJDBlff1gyXvsYtC9u1iwxibxPcx9r/9DweaNn/H2D/AatN z+MJl092VHKwiDGxSArpsjSa3727oNLqho/XszfBjOHlQlkCAMXpwBMhL2HkWHBhB13t6sVJEw0 Nb3g9Oi5zW4nJy/vq3tn7FV3X+rwZ2UhI8NfmbrLz5KPLdrSkakrVZdWUnO61eGAp9KGhdFeEp6 XrDkA X-Developer-Key: i=wbg@kernel.org; a=openpgp; fpr=8D37CDDDE0D22528F8E89FB6B54856CABE12232B Attempting to load the 104-idio-16 module fails during regmap initialization with a return error -EINVAL. This is a result of the regmap cache failing initialization. Set the idio_16_regmap_config max_register member to fix this failure. Fixes: 2c210c9a34a3 ("gpio: 104-idio-16: Migrate to the regmap API") Reported-by: Mark Cave-Ayland Closes: https://lore.kernel.org/r/9b0375fd-235f-4ee1-a7fa-daca296ef6bf@nutanix.com Suggested-by: Mark Cave-Ayland Cc: stable@vger.kernel.org Reviewed-by: Andy Shevchenko Signed-off-by: William Breathitt Gray --- drivers/gpio/gpio-104-idio-16.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/gpio-104-idio-16.c b/drivers/gpio/gpio-104-idio-16.c index ffe7e1cb6b238856b9d13b2a278fe6c44b9cc8d3..fe5c10cd5c327ace1b715e9a27590211dce06fb0 100644 --- a/drivers/gpio/gpio-104-idio-16.c +++ b/drivers/gpio/gpio-104-idio-16.c @@ -59,6 +59,7 @@ static const struct regmap_config idio_16_regmap_config = { .reg_stride = 1, .val_bits = 8, .io_port = true, + .max_register = 0x5, .wr_table = &idio_16_wr_table, .rd_table = &idio_16_rd_table, .volatile_table = &idio_16_rd_table, -- 2.51.0