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 A339B2ED85D; Mon, 20 Oct 2025 08:52:13 +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=1760950334; cv=none; b=EKeP/hHI0Q8wVOnEP4quW4NRPsvEEziS0/tXjSdJZUJhY04Drlh0dzhMpb7rHHs2opuQguhoTsfTkcnJ3CaoObDNKlOIrBkaBVmdEjRwyR6q1WnP1dLcrOoYhAdoFMF7dTpYT9+0LjOk2/jBAc36ZeSPosGb1sZQUsY4EoG2lrs= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760950334; c=relaxed/simple; bh=KH/2eJBrnrJKkAQLjlIxYoFdFIMreqzV2jotQA78V5g=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=NALirDyLJF1pqKqEDbLhTstZFruoDi9dYJIZnU4xFxi9V5EOa0yTLFypJ/1SxUKxK7Nr60QX4mgZMLNNNRWFDZot4Z/7yBWBKLOqq+P2dbRLmMTaU6ZtFrqR5yq5dUBZKCpbnoJdhVYOYWmLZev4GMgSPv1/3ju0GdhaULINLKM= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=qG5hTlwX; 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="qG5hTlwX" Received: by smtp.kernel.org (Postfix) with ESMTPSA id 215DAC113D0; Mon, 20 Oct 2025 08:52:12 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1760950333; bh=KH/2eJBrnrJKkAQLjlIxYoFdFIMreqzV2jotQA78V5g=; h=From:Date:Subject:References:In-Reply-To:To:Cc:From; b=qG5hTlwXNHMmaeDno1wSZ9unCLsdXO1ZB519d7D0PlSOvZz4qy5inaAa6cZWSgTvc aQXi4YajRLX5gZxgqWPOY0Q4kQ9XW/kpuPOqrOWWOEg6k6M8czA8Oo+ZsNKSpA9tE3 U7O5eYllyobvfgpBLL5d7MPWe4jvMbJFsrneeIMg3qiTTwfQbo/RWZ3ZbRsIXcaS7E Dif2t8J0hZ/GwT6oGyHIFk9dMgFTAnzcb8TD0QwRw+81jfB64or/CwyKXaOLxatZx+ wPJCTzXdmYYGUsRZLpNdmQVyLyzwxeWmnZNZ2cDXJpPf+KD+oY274yQjHw7GP3E6A9 a3tApMXITCUbA== From: William Breathitt Gray Date: Mon, 20 Oct 2025 17:51:45 +0900 Subject: [PATCH v2 2/3] gpio: pci-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-v2-2-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=KH/2eJBrnrJKkAQLjlIxYoFdFIMreqzV2jotQA78V5g=; b=owGbwMvMwCW21SPs1D4hZW3G02pJDBlff1g6Xiz9tcC68vD/rIrFwc8z5FQXWT/bM9HExTb3Y lCXDcu+jlIWBjEuBlkxRZZe87N3H1xS1fjxYv42mDmsTCBDGLg4BWAia7MY/tcY/DI9Hp0ucHXq rP2lnjcU4j+fcZinfW1LuO5tzYCp65Yz/A9V/WgrLHPpuPLPpS4TZu9P0w5n7nn99Z2rnMG1COb vMewA X-Developer-Key: i=wbg@kernel.org; a=openpgp; fpr=8D37CDDDE0D22528F8E89FB6B54856CABE12232B Attempting to load the pci-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: 73d8f3efc5c2 ("gpio: pci-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-pci-idio-16.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpio/gpio-pci-idio-16.c b/drivers/gpio/gpio-pci-idio-16.c index 476cea1b5ed774d18511aaf71d8ca2d71bcc9ff0..9d28ca8e1d6fac4bdc105b850583607b5e5a87ea 100644 --- a/drivers/gpio/gpio-pci-idio-16.c +++ b/drivers/gpio/gpio-pci-idio-16.c @@ -41,6 +41,7 @@ static const struct regmap_config idio_16_regmap_config = { .reg_stride = 1, .val_bits = 8, .io_port = true, + .max_register = 0x7, .wr_table = &idio_16_wr_table, .rd_table = &idio_16_rd_table, .volatile_table = &idio_16_rd_table, -- 2.51.0