From patchwork Tue May 28 14:20:34 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Julien Stephan X-Patchwork-Id: 13676873 Received: from mail-wr1-f67.google.com (mail-wr1-f67.google.com [209.85.221.67]) (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 19C71170837 for ; Tue, 28 May 2024 14:20:44 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.221.67 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716906048; cv=none; b=kcuVIoAegszNCDWF/hT7PYSoci42qvV3Ca7QdRpOJRLXCHsCrg5al7QhcflPIQ0YLgH6EMq/HE/r9JHMSj2TlA9Q+Rj/fpEICqJruMrbdwBe5AmnM3XzWvCuq54XhNq8SGNwSOzwnUfnTMaNj6A9Lz2BcbiHsFJcOIpEe1huKco= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1716906048; c=relaxed/simple; bh=Zzso1sxK6Q/UMw8mWkOfuHFaXKWw5NzczerMMf94Meg=; h=From:Date:Subject:MIME-Version:Content-Type:Message-Id:References: In-Reply-To:To:Cc; b=gzt7D8kF4d9JAiZZG11xrYkvSBFlj7qy/TvXUBth6Mume8yTkZJU9AFPDvnrwM7YwYiFNjZF4BSvhwz17wSjKB1eyN4mYgn13p/NhLkWrDwAzxj5vwGkcpDLbBqcFANisAa+J27jrpx5AgAr877oKqV+nByn9CWY3l2TxWgCSV8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com; spf=pass smtp.mailfrom=baylibre.com; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b=mmXpWCkw; arc=none smtp.client-ip=209.85.221.67 Authentication-Results: smtp.subspace.kernel.org; dmarc=none (p=none dis=none) header.from=baylibre.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=baylibre.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=baylibre-com.20230601.gappssmtp.com header.i=@baylibre-com.20230601.gappssmtp.com header.b="mmXpWCkw" Received: by mail-wr1-f67.google.com with SMTP id ffacd0b85a97d-35507e3a5deso2481741f8f.1 for ; Tue, 28 May 2024 07:20:44 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=baylibre-com.20230601.gappssmtp.com; s=20230601; t=1716906043; x=1717510843; darn=vger.kernel.org; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:from:to:cc:subject:date:message-id :reply-to; bh=ZKaoQYw7yNqBcZbbeNBd7Up3BviKXiLpwv87L7N/DuE=; b=mmXpWCkwckaAuF5+yQbdbs9VoAn5xZt7feFWYTzCi+uUHjQ17EJ01ve7CXY1lpkqkF sp5cr+kgcXZ47D5z+HzOxY61d/1lHiiVOTuSvGkX4Wg94u/MY1haG+LP+hDP7EJIpsL6 8YZqHNXV6GhyX0CQVFMMMNYGztLZgN0LCsVL8+HRQhuAuk5SxZwUjIjMaZLv+CUd0v02 fDue385iIRMHbZFA0w5J5nhxsIhrmWYA4u1nLOjkw85e3CFfGvxTlOY0UF0k4OcvmHtn EInodbUwc9txIV7mam9hPvA/pSEUMB6Tq0927uC88p5K1cx/950rjHszn3IRhPLplCe/ Dt9w== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1716906043; x=1717510843; h=cc:to:in-reply-to:references:message-id:content-transfer-encoding :mime-version:subject:date:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=ZKaoQYw7yNqBcZbbeNBd7Up3BviKXiLpwv87L7N/DuE=; b=G3OtBXeLbTLpXPrXhQMlf+a9zBHLolgWUdyAHqDYjD4qKpcV/+9CsEtavZReHgx6BX Fxaj2nZNgaWtnbd8pM1Af2KE4IZIn86jZl9NEjHJTVLiS7/yBKkHIHhmpTvfv+cGwnpa 0TF066O99VrCeIkeUYWzEuRyHT8BdtrMRdf2KvUUmWIyfvWtgI1mGxEkcOsEiJ2u/QLz tP+c6cZnKF/qL2GRA3PndNCCY5Iuj0aax5beUwcrt/8b19wEJli4Ekovoo4Z2VM+qxPo 8EEly1/nZBHYzV6fqdCcbceBakGUbfB2j3DAcHPJuD/pLjIc45GjJUnHI1rKINeztTCb XHDg== X-Forwarded-Encrypted: i=1; AJvYcCVEUz/4gbJsBoEzmaZh7igEGOMqsEXpqeZslLU8FuiFyCQOQFTEo0DhoQIh1bHTiMH25LLxhU31fx/JJV+idOAZVvOjV4ynxwNB X-Gm-Message-State: AOJu0YwND6FXr8BpZoL2QsiKJG/HcoiuBbYRvqWR/P+e8BwZxTp9vDPt cilDCVDiPNoMYus5J231DEtUBlEIK3rgM90w0Vqx0nOEQp932qg4q+Nrwvji0lw= X-Google-Smtp-Source: AGHT+IEQX+B45eG3mvmnIMj7QY5BU8cvy92fKruQUXncFnMv/tK/TI5wgfM30c4k5cgHa+jpjJTStg== X-Received: by 2002:a05:6000:1942:b0:358:d9d4:1026 with SMTP id ffacd0b85a97d-358d9d411a5mr6053075f8f.17.1716906043624; Tue, 28 May 2024 07:20:43 -0700 (PDT) Received: from [192.168.1.63] ([2a02:842a:d52e:6101:6fd0:6c4:5d68:f0a5]) by smtp.gmail.com with ESMTPSA id ffacd0b85a97d-35579d7db5esm11999275f8f.15.2024.05.28.07.20.43 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Tue, 28 May 2024 07:20:43 -0700 (PDT) From: Julien Stephan Date: Tue, 28 May 2024 16:20:34 +0200 Subject: [PATCH v7 7/7] iio: adc: ad7380: add support for ad738x-4 4 channels variants Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Message-Id: <20240528-adding-new-ad738x-driver-v7-7-4cd70a4c12c8@baylibre.com> References: <20240528-adding-new-ad738x-driver-v7-0-4cd70a4c12c8@baylibre.com> In-Reply-To: <20240528-adding-new-ad738x-driver-v7-0-4cd70a4c12c8@baylibre.com> To: Lars-Peter Clausen , Michael Hennerich , =?utf-8?q?Nuno_S=C3=A1?= , David Lechner , Jonathan Cameron , Rob Herring , Krzysztof Kozlowski , Conor Dooley , Liam Girdwood , Mark Brown Cc: kernel test robot , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, Julien Stephan X-Mailer: b4 0.13.0 Add support for ad7380/1/2/3-4 parts which are 4 channels variants from ad7380/1/2/3 Signed-off-by: Julien Stephan --- drivers/iio/adc/ad7380.c | 77 ++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 75 insertions(+), 2 deletions(-) diff --git a/drivers/iio/adc/ad7380.c b/drivers/iio/adc/ad7380.c index 790d08c90ad0..6b0b1b0be363 100644 --- a/drivers/iio/adc/ad7380.c +++ b/drivers/iio/adc/ad7380.c @@ -8,6 +8,9 @@ * Datasheets of supported parts: * ad7380/1 : https://www.analog.com/media/en/technical-documentation/data-sheets/AD7380-7381.pdf * ad7383/4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7383-7384.pdf + * ad7380-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7380-4.pdf + * ad7381-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7381-4.pdf + * ad7383/4-4 : https://www.analog.com/media/en/technical-documentation/data-sheets/ad7383-4-ad7384-4.pdf */ #include @@ -27,7 +30,7 @@ #include #include -#define MAX_NUM_CHANNELS 2 +#define MAX_NUM_CHANNELS 4 /* 2.5V internal reference voltage */ #define AD7380_INTERNAL_REF_MV 2500 @@ -104,27 +107,53 @@ static const struct iio_chan_spec name[] = { \ IIO_CHAN_SOFT_TIMESTAMP(2), \ } +#define DEFINE_AD7380_4_CHANNEL(name, bits, diff) \ +static const struct iio_chan_spec name[] = { \ + AD7380_CHANNEL(0, bits, diff), \ + AD7380_CHANNEL(1, bits, diff), \ + AD7380_CHANNEL(2, bits, diff), \ + AD7380_CHANNEL(3, bits, diff), \ + IIO_CHAN_SOFT_TIMESTAMP(4), \ +} + /* fully differential */ DEFINE_AD7380_2_CHANNEL(ad7380_channels, 16, 1); DEFINE_AD7380_2_CHANNEL(ad7381_channels, 14, 1); +DEFINE_AD7380_4_CHANNEL(ad7380_4_channels, 16, 1); +DEFINE_AD7380_4_CHANNEL(ad7381_4_channels, 14, 1); /* pseudo differential */ DEFINE_AD7380_2_CHANNEL(ad7383_channels, 16, 0); DEFINE_AD7380_2_CHANNEL(ad7384_channels, 14, 0); +DEFINE_AD7380_4_CHANNEL(ad7383_4_channels, 16, 0); +DEFINE_AD7380_4_CHANNEL(ad7384_4_channels, 14, 0); static const char * const ad7380_2_channel_vcm_supplies[] = { "aina", "ainb", }; +static const char * const ad7380_4_channel_vcm_supplies[] = { + "aina", "ainb", "ainc", "aind", +}; + /* Since this is simultaneous sampling, we don't allow individual channels. */ static const unsigned long ad7380_2_channel_scan_masks[] = { GENMASK(1, 0), 0 }; +static const unsigned long ad7380_4_channel_scan_masks[] = { + GENMASK(3, 0), + 0 +}; + static const struct ad7380_timing_specs ad7380_timing = { .t_csh_ns = 10, }; +static const struct ad7380_timing_specs ad7380_4_timing = { + .t_csh_ns = 20, +}; + static const struct ad7380_chip_info ad7380_chip_info = { .name = "ad7380", .channels = ad7380_channels, @@ -161,6 +190,42 @@ static const struct ad7380_chip_info ad7384_chip_info = { .timing_specs = &ad7380_timing, }; +static const struct ad7380_chip_info ad7380_4_chip_info = { + .name = "ad7380-4", + .channels = ad7380_4_channels, + .num_channels = ARRAY_SIZE(ad7380_4_channels), + .available_scan_masks = ad7380_4_channel_scan_masks, + .timing_specs = &ad7380_4_timing, +}; + +static const struct ad7380_chip_info ad7381_4_chip_info = { + .name = "ad7381-4", + .channels = ad7381_4_channels, + .num_channels = ARRAY_SIZE(ad7381_4_channels), + .available_scan_masks = ad7380_4_channel_scan_masks, + .timing_specs = &ad7380_4_timing, +}; + +static const struct ad7380_chip_info ad7383_4_chip_info = { + .name = "ad7383-4", + .channels = ad7383_4_channels, + .num_channels = ARRAY_SIZE(ad7383_4_channels), + .vcm_supplies = ad7380_4_channel_vcm_supplies, + .num_vcm_supplies = ARRAY_SIZE(ad7380_4_channel_vcm_supplies), + .available_scan_masks = ad7380_4_channel_scan_masks, + .timing_specs = &ad7380_4_timing, +}; + +static const struct ad7380_chip_info ad7384_4_chip_info = { + .name = "ad7384-4", + .channels = ad7384_4_channels, + .num_channels = ARRAY_SIZE(ad7384_4_channels), + .vcm_supplies = ad7380_4_channel_vcm_supplies, + .num_vcm_supplies = ARRAY_SIZE(ad7380_4_channel_vcm_supplies), + .available_scan_masks = ad7380_4_channel_scan_masks, + .timing_specs = &ad7380_4_timing, +}; + struct ad7380_state { const struct ad7380_chip_info *chip_info; struct spi_device *spi; @@ -172,7 +237,7 @@ struct ad7380_state { * transfer buffers to live in their own cache lines. * Make the buffer large enough for MAX_NUM_CHANNELS 16-bit samples and one 64-bit * aligned 64 bit timestamp. - * As MAX_NUM_CHANNELS is 2 the layout of the structure is the same for all parts + * As MAX_NUM_CHANNELS is 4 the layout of the structure is the same for all parts */ struct { u16 raw[MAX_NUM_CHANNELS]; @@ -512,6 +577,10 @@ static const struct of_device_id ad7380_of_match_table[] = { { .compatible = "adi,ad7381", .data = &ad7381_chip_info }, { .compatible = "adi,ad7383", .data = &ad7383_chip_info }, { .compatible = "adi,ad7384", .data = &ad7384_chip_info }, + { .compatible = "adi,ad7380-4", .data = &ad7380_4_chip_info }, + { .compatible = "adi,ad7381-4", .data = &ad7381_4_chip_info }, + { .compatible = "adi,ad7383-4", .data = &ad7383_4_chip_info }, + { .compatible = "adi,ad7384-4", .data = &ad7384_4_chip_info }, { } }; @@ -520,6 +589,10 @@ static const struct spi_device_id ad7380_id_table[] = { { "ad7381", (kernel_ulong_t)&ad7381_chip_info }, { "ad7383", (kernel_ulong_t)&ad7383_chip_info }, { "ad7384", (kernel_ulong_t)&ad7384_chip_info }, + { "ad7380-4", (kernel_ulong_t)&ad7380_4_chip_info }, + { "ad7381-4", (kernel_ulong_t)&ad7381_4_chip_info }, + { "ad7383-4", (kernel_ulong_t)&ad7383_4_chip_info }, + { "ad7384-4", (kernel_ulong_t)&ad7384_4_chip_info }, { } }; MODULE_DEVICE_TABLE(spi, ad7380_id_table);