From patchwork Mon Jan 14 17:24:20 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Mario Tesi X-Patchwork-Id: 10763199 Return-Path: Received: from mail.wl.linuxfoundation.org (pdx-wl-mail.web.codeaurora.org [172.30.200.125]) by pdx-korg-patchwork-2.web.codeaurora.org (Postfix) with ESMTP id 5CAF26C2 for ; Mon, 14 Jan 2019 17:25:15 +0000 (UTC) Received: from mail.wl.linuxfoundation.org (localhost [127.0.0.1]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 3ED4529154 for ; Mon, 14 Jan 2019 17:25:15 +0000 (UTC) Received: by mail.wl.linuxfoundation.org (Postfix, from userid 486) id 32A9A292B2; Mon, 14 Jan 2019 17:25:15 +0000 (UTC) X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on pdx-wl-mail.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-8.0 required=2.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FREEMAIL_FROM,MAILING_LIST_MULTI,RCVD_IN_DNSWL_HI autolearn=ham version=3.3.1 Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.wl.linuxfoundation.org (Postfix) with ESMTP id 907D02926C for ; Mon, 14 Jan 2019 17:25:14 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726646AbfANRZJ (ORCPT ); Mon, 14 Jan 2019 12:25:09 -0500 Received: from mail-wm1-f67.google.com ([209.85.128.67]:33433 "EHLO mail-wm1-f67.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726723AbfANRZH (ORCPT ); Mon, 14 Jan 2019 12:25:07 -0500 Received: by mail-wm1-f67.google.com with SMTP id r24so7890098wmh.0; Mon, 14 Jan 2019 09:25:05 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=from:to:cc:subject:date:message-id; bh=b6soLP5EAlQ812DfEmZHunfsM5OuUsZ6ew8aX6zdqi0=; b=uXgs1FX8xIy/7CDVoWDtw7uJfoLeN8X4W/WEt6fojOHzT3YVqViuWh53ycrc3Wf+SH rd9AFe3+/4SK/WoZDjKYlW2hkaMeE0X3ecXgs/gouk5rgJU0HHpP1AHLuhLzY9L4va2Y 2ndxIWEJ85iaj+m2hSwGkxXvC8GXenc2KKi8a8vk0C8ed8RNBgHgCAstE2pMORnAOOXM iv4Z48JwZLR3wMaGxToNtfD/6PPD/In6FnrqA1mdEHnQDwcwkpbGOmarOVHT3y0mn+L3 hp+xEGVFPXEktJEzEZ29a2wa2tDtzlLoYLHLe3ULoXBiNlEhlva5QKZHWSa/v0vIkd10 22uA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id; bh=b6soLP5EAlQ812DfEmZHunfsM5OuUsZ6ew8aX6zdqi0=; b=XQIrRbBJSflGhkWiRAa30dE+k4mPpGck75cEXOIPFzjjsiIN4rYePM8SgEWVwdna3F trOwo2KLvkeephwN23Iba5pxPoClzHetXiTPW4BlxFqqxTJdxrZVdwotCp1M4+tqBWli zDnH/2nLbAVsd/eTCdZQ4TPfZBYymtmOTuAtbj2rUOcbp03XcgSI7DXKvkxfKbFhTNQG UUunYBJCS3GO06C9uynoTQODICvojYmOWCPQetVzVpKaSrpdlOFw2lE3j93by06tr8V2 D+XAFxSe3TMJaa7au2vD+ZtV5dLxMM7iBhVlM+RauwXnBmOWM8q6eRWUSobEY2O4k+aJ 5kdA== X-Gm-Message-State: AJcUukfiDHlOs0BRodrps1rznJpvMFEtwdJibZ+0KwOHRUT1t/JVmJVG fD+Z3JLm9SSYFjB11a1juow= X-Google-Smtp-Source: ALg8bN53HGKSEpkD6uyQk9hcU9Dw/Tx+9Mqj5z2rLfJfWWtuItRgm7eUwn4qjCHajYwhed7bm6BNlw== X-Received: by 2002:a1c:541a:: with SMTP id i26mr147654wmb.128.1547486704677; Mon, 14 Jan 2019 09:25:04 -0800 (PST) Received: from ctocxl0004.cto.st.com ([37.162.94.7]) by smtp.gmail.com with ESMTPSA id n82sm28476124wma.42.2019.01.14.09.25.02 (version=TLS1_2 cipher=ECDHE-RSA-AES128-SHA bits=128/128); Mon, 14 Jan 2019 09:25:03 -0800 (PST) From: Mario Tesi X-Google-Original-From: Mario Tesi To: jic23@kernel.org Cc: linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, mario.tesi@st.com Subject: [PATCH] iio:st_pressure:initial lps22hh sensor support Date: Mon, 14 Jan 2019 18:24:20 +0100 Message-Id: <1547486660-15359-1-git-send-email-mario.tesi@st.com> X-Mailer: git-send-email 2.7.4 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org X-Virus-Scanned: ClamAV using ClamSMTP From: mario tesi Initial support for ST LPS22HH pressure sensor. Datasheet: http://www2.st.com/resource/en/datasheet/lps22hh.pdf Features: * pressure, temperature data and timestamping channels * sampling frequency selection [1..200] Hz * interrupt based trigger * over I2C or SPI interface Signed-off-by: mario tesi Acked-by: Denis Ciocca Signed-off-by: mario tesi --- drivers/iio/pressure/Kconfig | 2 +- drivers/iio/pressure/st_pressure.h | 2 + drivers/iio/pressure/st_pressure_core.c | 69 +++++++++++++++++++++++++++++++++ drivers/iio/pressure/st_pressure_i2c.c | 5 +++ drivers/iio/pressure/st_pressure_spi.c | 5 +++ 5 files changed, 82 insertions(+), 1 deletion(-) diff --git a/drivers/iio/pressure/Kconfig b/drivers/iio/pressure/Kconfig index eaa7cfc..efeb89f 100644 --- a/drivers/iio/pressure/Kconfig +++ b/drivers/iio/pressure/Kconfig @@ -165,7 +165,7 @@ config IIO_ST_PRESS select IIO_TRIGGERED_BUFFER if (IIO_BUFFER) help Say yes here to build support for STMicroelectronics pressure - sensors: LPS001WP, LPS25H, LPS331AP, LPS22HB. + sensors: LPS001WP, LPS25H, LPS331AP, LPS22HB, LPS22HH. This driver can also be built as a module. If so, these modules will be created: diff --git a/drivers/iio/pressure/st_pressure.h b/drivers/iio/pressure/st_pressure.h index e67eb0d..5794660 100644 --- a/drivers/iio/pressure/st_pressure.h +++ b/drivers/iio/pressure/st_pressure.h @@ -21,6 +21,7 @@ enum st_press_type { LPS22HB, LPS33HW, LPS35HW, + LPS22HH, ST_PRESS_MAX, }; @@ -30,6 +31,7 @@ enum st_press_type { #define LPS22HB_PRESS_DEV_NAME "lps22hb" #define LPS33HW_PRESS_DEV_NAME "lps33hw" #define LPS35HW_PRESS_DEV_NAME "lps35hw" +#define LPS22HH_PRESS_DEV_NAME "lps22hh" /** * struct st_sensors_platform_data - default press platform data diff --git a/drivers/iio/pressure/st_pressure_core.c b/drivers/iio/pressure/st_pressure_core.c index 4ddb6cf..38dcdb7 100644 --- a/drivers/iio/pressure/st_pressure_core.c +++ b/drivers/iio/pressure/st_pressure_core.c @@ -492,6 +492,75 @@ .multi_read_bit = false, .bootime = 2, }, + { + /* + * CUSTOM VALUES FOR LPS22HH SENSOR + * See LPS22HH datasheet: + * http://www2.st.com/resource/en/datasheet/lps22hh.pdf + */ + .wai = 0xb3, + .wai_addr = ST_SENSORS_DEFAULT_WAI_ADDRESS, + .sensors_supported = { + [0] = LPS22HH_PRESS_DEV_NAME, + }, + .ch = (struct iio_chan_spec *)st_press_lps22hb_channels, + .num_ch = ARRAY_SIZE(st_press_lps22hb_channels), + .odr = { + .addr = 0x10, + .mask = 0x70, + .odr_avl = { + { .hz = 1, .value = 0x01 }, + { .hz = 10, .value = 0x02 }, + { .hz = 25, .value = 0x03 }, + { .hz = 50, .value = 0x04 }, + { .hz = 75, .value = 0x05 }, + { .hz = 100, .value = 0x06 }, + { .hz = 200, .value = 0x07 }, + }, + }, + .pw = { + .addr = 0x10, + .mask = 0x70, + .value_off = ST_SENSORS_DEFAULT_POWER_OFF_VALUE, + }, + .fs = { + .fs_avl = { + /* + * Pressure and temperature sensitivity values + * as defined in table 3 of LPS22HH datasheet. + */ + [0] = { + .num = ST_PRESS_FS_AVL_1260MB, + .gain = ST_PRESS_KPASCAL_NANO_SCALE, + .gain2 = ST_PRESS_LPS22HB_LSB_PER_CELSIUS, + }, + }, + }, + .bdu = { + .addr = 0x10, + .mask = BIT(1), + }, + .drdy_irq = { + .int1 = { + .addr = 0x12, + .mask = BIT(2), + .addr_od = 0x11, + .mask_od = BIT(5), + }, + .addr_ihl = 0x11, + .mask_ihl = BIT(6), + .stat_drdy = { + .addr = ST_SENSORS_DEFAULT_STAT_ADDR, + .mask = 0x03, + }, + }, + .sim = { + .addr = 0x10, + .value = BIT(0), + }, + .multi_read_bit = false, + .bootime = 2, + }, }; static int st_press_write_raw(struct iio_dev *indio_dev, diff --git a/drivers/iio/pressure/st_pressure_i2c.c b/drivers/iio/pressure/st_pressure_i2c.c index 2026a10..a60849d 100644 --- a/drivers/iio/pressure/st_pressure_i2c.c +++ b/drivers/iio/pressure/st_pressure_i2c.c @@ -45,6 +45,10 @@ .compatible = "st,lps35hw", .data = LPS35HW_PRESS_DEV_NAME, }, + { + .compatible = "st,lps22hh", + .data = LPS22HH_PRESS_DEV_NAME, + }, {}, }; MODULE_DEVICE_TABLE(of, st_press_of_match); @@ -69,6 +73,7 @@ { LPS22HB_PRESS_DEV_NAME, LPS22HB }, { LPS33HW_PRESS_DEV_NAME, LPS33HW }, { LPS35HW_PRESS_DEV_NAME, LPS35HW }, + { LPS22HH_PRESS_DEV_NAME, LPS22HH }, {}, }; MODULE_DEVICE_TABLE(i2c, st_press_id_table); diff --git a/drivers/iio/pressure/st_pressure_spi.c b/drivers/iio/pressure/st_pressure_spi.c index 9a3441b..79a12ed 100644 --- a/drivers/iio/pressure/st_pressure_spi.c +++ b/drivers/iio/pressure/st_pressure_spi.c @@ -49,6 +49,10 @@ .compatible = "st,lps35hw", .data = LPS35HW_PRESS_DEV_NAME, }, + { + .compatible = "st,lps22hh", + .data = LPS22HH_PRESS_DEV_NAME, + }, {}, }; MODULE_DEVICE_TABLE(of, st_press_of_match); @@ -93,6 +97,7 @@ static int st_press_spi_remove(struct spi_device *spi) { LPS22HB_PRESS_DEV_NAME }, { LPS33HW_PRESS_DEV_NAME }, { LPS35HW_PRESS_DEV_NAME }, + { LPS22HH_PRESS_DEV_NAME }, {}, }; MODULE_DEVICE_TABLE(spi, st_press_id_table);