From patchwork Thu Oct 3 17:33:59 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Miquel Raynal X-Patchwork-Id: 11172981 Return-Path: Received: from mail.kernel.org (pdx-korg-mail-1.web.codeaurora.org [172.30.200.123]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 110CC196C for ; Thu, 3 Oct 2019 17:34:45 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id EECEA215EA for ; Thu, 3 Oct 2019 17:34:44 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387643AbfJCRen (ORCPT ); Thu, 3 Oct 2019 13:34:43 -0400 Received: from relay9-d.mail.gandi.net ([217.70.183.199]:47855 "EHLO relay9-d.mail.gandi.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2387524AbfJCReS (ORCPT ); Thu, 3 Oct 2019 13:34:18 -0400 X-Originating-IP: 91.224.148.103 Received: from localhost.localdomain (unknown [91.224.148.103]) (Authenticated sender: miquel.raynal@bootlin.com) by relay9-d.mail.gandi.net (Postfix) with ESMTPSA id 160C0FF80F; Thu, 3 Oct 2019 17:34:15 +0000 (UTC) From: Miquel Raynal To: Jonathan Cameron , Hartmut Knaack , Lars-Peter Clausen , Peter Meerwald-Stadler , Rob Herring , Mark Rutland Cc: , linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Thomas Petazzoni , Miquel Raynal Subject: [PATCH v2 5/7] iio: adc: max1027: Introduce 12-bit devices support Date: Thu, 3 Oct 2019 19:33:59 +0200 Message-Id: <20191003173401.16343-6-miquel.raynal@bootlin.com> X-Mailer: git-send-email 2.20.1 In-Reply-To: <20191003173401.16343-1-miquel.raynal@bootlin.com> References: <20191003173401.16343-1-miquel.raynal@bootlin.com> MIME-Version: 1.0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org Maxim's max12xx series is very similar to the max10xx series, with the difference of the measurements depth which is upgraded from 10 to 12 bits per channel. Everything else looks the same. Signed-off-by: Miquel Raynal --- drivers/iio/adc/Kconfig | 4 ++-- drivers/iio/adc/max1027.c | 44 ++++++++++++++++++++++++++++++++++++++- 2 files changed, 45 insertions(+), 3 deletions(-) diff --git a/drivers/iio/adc/Kconfig b/drivers/iio/adc/Kconfig index f0af3a42f53c..6ac16d738822 100644 --- a/drivers/iio/adc/Kconfig +++ b/drivers/iio/adc/Kconfig @@ -508,8 +508,8 @@ config MAX1027 select IIO_BUFFER select IIO_TRIGGERED_BUFFER help - Say yes here to build support for Maxim SPI ADC models - max1027, max1029 and max1031. + Say yes here to build support for Maxim SPI {10,12}-bit ADC models: + max1027, max1029, max1031, max1227, max1229 and max1231. To compile this driver as a module, choose M here: the module will be called max1027. diff --git a/drivers/iio/adc/max1027.c b/drivers/iio/adc/max1027.c index 5d5d223dd42a..0d7116e9a63b 100644 --- a/drivers/iio/adc/max1027.c +++ b/drivers/iio/adc/max1027.c @@ -63,12 +63,18 @@ enum max1027_id { max1027, max1029, max1031, + max1227, + max1229, + max1231, }; static const struct spi_device_id max1027_id[] = { {"max1027", max1027}, {"max1029", max1029}, {"max1031", max1031}, + {"max1227", max1227}, + {"max1229", max1229}, + {"max1231", max1231}, {} }; MODULE_DEVICE_TABLE(spi, max1027_id); @@ -78,6 +84,9 @@ static const struct of_device_id max1027_adc_dt_ids[] = { { .compatible = "maxim,max1027" }, { .compatible = "maxim,max1029" }, { .compatible = "maxim,max1031" }, + { .compatible = "maxim,max1227" }, + { .compatible = "maxim,max1229" }, + { .compatible = "maxim,max1231" }, {}, }; MODULE_DEVICE_TABLE(of, max1027_adc_dt_ids); @@ -153,6 +162,21 @@ static const struct iio_chan_spec max1031_channels[] = { MAX1X31_CHANNELS(10) }; +static const struct iio_chan_spec max1227_channels[] = { + MAX1X27_CHANNELS(12) +}; + +static const struct iio_chan_spec max1229_channels[] = { + MAX1X27_CHANNELS(12), + MAX1X29_CHANNELS(12) +}; + +static const struct iio_chan_spec max1231_channels[] = { + MAX1X27_CHANNELS(12), + MAX1X29_CHANNELS(12), + MAX1X31_CHANNELS(12) +}; + static const unsigned long max1027_available_scan_masks[] = { 0x000001ff, 0x00000000, @@ -194,6 +218,24 @@ static const struct max1027_chip_info max1027_chip_info_tbl[] = { .depth = 10, .available_scan_masks = max1031_available_scan_masks, }, + [max1227] = { + .channels = max1227_channels, + .num_channels = ARRAY_SIZE(max1227_channels), + .depth = 12, + .available_scan_masks = max1027_available_scan_masks, + }, + [max1229] = { + .channels = max1229_channels, + .num_channels = ARRAY_SIZE(max1229_channels), + .depth = 12, + .available_scan_masks = max1029_available_scan_masks, + }, + [max1231] = { + .channels = max1231_channels, + .num_channels = ARRAY_SIZE(max1231_channels), + .depth = 12, + .available_scan_masks = max1031_available_scan_masks, + }, }; struct max1027_state { @@ -490,5 +532,5 @@ static struct spi_driver max1027_driver = { module_spi_driver(max1027_driver); MODULE_AUTHOR("Philippe Reynes "); -MODULE_DESCRIPTION("MAX1027/MAX1029/MAX1031 ADC"); +MODULE_DESCRIPTION("MAX1X27/MAX1X29/MAX1X31 ADC"); MODULE_LICENSE("GPL v2");