From patchwork Fri Mar 28 17:48:31 2025 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Sam Winchenbach X-Patchwork-Id: 14032335 Received: from out-14.pe-a.jellyfish.systems (out-14.pe-a.jellyfish.systems [198.54.127.78]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 22CAA1DE3AC; Fri, 28 Mar 2025 17:50:32 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.54.127.78 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743184234; cv=none; b=l9Ttf+LKuNkiVDIO6i7vjqeMPkWzerUXn7zRhxDthtHHTd5Tk5ldGOgHN+ai8Z19hxFBBAVcmAOT7CZuYXyMOBr5dR1xihwC+Jj28cQhxms4jUQF3+f6bzDyP8ojhmh6OrMzh2pFz9/uat2moaB52ll0axAuU4FsI3IT7Carqes= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1743184234; c=relaxed/simple; bh=a4wb0o07elSzfnSvnFun1jxLv/nj4dn1gQgFhZ1pABk=; h=From:To:Cc:Subject:Date:Message-ID:In-Reply-To:References: MIME-Version; b=SPQAiIUzALKWEQECB2JB6vgQ7icdUVXLenkVQrULICUTBL/wnFlrDMpQJDHzIqjEZA0PLGSFRmw9hwvm/H0VQcOEqxH69iXjGMwblcxc2X158ovG2lTE/26p/snEToUXqNDdNmQMqsBNADTVne9UYwH9Tux+0wp4Oy6uQ8Q1598= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=framepointer.org; spf=pass smtp.mailfrom=framepointer.org; dkim=pass (2048-bit key) header.d=framepointer.org header.i=@framepointer.org header.b=sojH8WbF; arc=none smtp.client-ip=198.54.127.78 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=framepointer.org Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=framepointer.org Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=framepointer.org header.i=@framepointer.org header.b="sojH8WbF" Received: from prod-lbout-phx.jellyfish.systems (new-01-3.privateemail.com [66.29.159.56]) by pe-a.jellyfish.systems (Postfix) with ESMTPA id 4ZPSjg5Z9Sz3xGq; Fri, 28 Mar 2025 17:50:31 +0000 (UTC) Received: from MTA-14.privateemail.com (unknown [10.50.14.30]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (2048 bits)) (No client certificate requested) by NEW-01-3.privateemail.com (Postfix) with ESMTPS id 4ZPSjg4ykKz2Sd0Q; Fri, 28 Mar 2025 13:50:31 -0400 (EDT) Received: from mta-14.privateemail.com (localhost [127.0.0.1]) by mta-14.privateemail.com (Postfix) with ESMTP id 4ZPSjg3fP8z3hhVQ; Fri, 28 Mar 2025 13:50:31 -0400 (EDT) DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple; d=framepointer.org; s=default; t=1743184231; bh=a4wb0o07elSzfnSvnFun1jxLv/nj4dn1gQgFhZ1pABk=; h=From:To:Cc:Subject:Date:In-Reply-To:References:From; b=sojH8WbFRP8Fhm85PrwsdsTjLQJOwxvIejbgV6Ta2AWed4O3iLe0EQbECGPzgzGCL ZESH2FYChFjvXYJQEkfZ4cYui1FWJEX98BURQpdg3Wct9P57FZhlibXpAsefBkH6hO XCSi4xiCwMMBfS3iwpI0m5JZX0nkC9n786Q4yi3EFiY2YHH28WN+q9B7q6KGBj5ocT FC63yssBa89aI2F/ninuAqckq0+vHu/YXD2JWHlQCsFcwkzCQK8R7q5cMHPD8AGHu4 1OoTooaNfxkxNINn1g5z4kIL67ryHfC1cFukqnBRGl3JB4+b98PUEcU0Xk2Fae1knO m8cPoq7h6jNag== Received: from 65YTFL3.secure.tethers.com (unknown [152.44.190.141]) by mta-14.privateemail.com (Postfix) with ESMTPA; Fri, 28 Mar 2025 13:50:15 -0400 (EDT) From: Sam Winchenbach To: linux-kernel@vger.kernel.org Cc: lars@metafoo.de, Michael.Hennerich@analog.com, antoniu.miclaus@analog.com, jic23@kernel.org, robh@kernel.org, krzk+dt@kernel.org, conor+dt@kernel.org, linux-iio@vger.kernel.org, devicetree@vger.kernel.org, sam.winchenbach@framepointer.org, bpellegrino@arka.org, Sam Winchenbach Subject: [PATCH v8 6/6] iio: filter: admv8818: Support frequencies >= 2^32 Date: Fri, 28 Mar 2025 13:48:31 -0400 Message-ID: <20250328174831.227202-7-sam.winchenbach@framepointer.org> X-Mailer: git-send-email 2.49.0 In-Reply-To: <20250328174831.227202-1-sam.winchenbach@framepointer.org> References: <20250328174831.227202-1-sam.winchenbach@framepointer.org> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Virus-Scanned: ClamAV using ClamSMTP From: Brian Pellegrino This patch allows writing u64 values to the ADMV8818's high and low-pass filter frequencies. It includes the following changes: - Rejects negative frequencies in admv8818_write_raw. - Adds a write_raw_get_fmt function to admv8818's iio_info, returning IIO_VAL_INT_64 for the high and low-pass filter 3dB frequency channels. Fixes: f34fe888ad05 ("iio:filter:admv8818: add support for ADMV8818") Signed-off-by: Brian Pellegrino Signed-off-by: Sam Winchenbach --- drivers/iio/filter/admv8818.c | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/iio/filter/admv8818.c b/drivers/iio/filter/admv8818.c index 380e119b3cf54..cc8ce0fe74e7c 100644 --- a/drivers/iio/filter/admv8818.c +++ b/drivers/iio/filter/admv8818.c @@ -402,6 +402,19 @@ static int admv8818_read_lpf_freq(struct admv8818_state *st, u64 *lpf_freq) return ret; } +static int admv8818_write_raw_get_fmt(struct iio_dev *indio_dev, + struct iio_chan_spec const *chan, + long mask) +{ + switch (mask) { + case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: + case IIO_CHAN_INFO_HIGH_PASS_FILTER_3DB_FREQUENCY: + return IIO_VAL_INT_64; + default: + return -EINVAL; + } +} + static int admv8818_write_raw(struct iio_dev *indio_dev, struct iio_chan_spec const *chan, int val, int val2, long info) @@ -410,6 +423,9 @@ static int admv8818_write_raw(struct iio_dev *indio_dev, u64 freq = ((u64)val2 << 32 | (u32)val); + if ((s64)freq < 0) + return -EINVAL; + switch (info) { case IIO_CHAN_INFO_LOW_PASS_FILTER_3DB_FREQUENCY: return admv8818_lpf_select(st, freq); @@ -571,6 +587,7 @@ static int admv8818_set_mode(struct iio_dev *indio_dev, static const struct iio_info admv8818_info = { .write_raw = admv8818_write_raw, + .write_raw_get_fmt = admv8818_write_raw_get_fmt, .read_raw = admv8818_read_raw, .debugfs_reg_access = &admv8818_reg_access, };