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The pressure scale was just wrong. For the others, the scale factors were not taking into account that a 32bit word is being read from the device. Fixes: 7abad1063deb ("iio: adis16480: Fix scale factors") Fixes: 9fe09f1337ee ("iio: imu: adis16480: Add support for ADIS1649x family of devices") Fixes: 49c4a18357c8 ("iio: imu: adis16480: Add support for ADIS16490") Cc: Signed-off-by: Nuno Sá --- drivers/iio/imu/adis16480.c | 77 ++++++++++++++++++++----------------- 1 file changed, 41 insertions(+), 36 deletions(-) diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c index b99d73887c9f..3b53bbb11bfb 100644 --- a/drivers/iio/imu/adis16480.c +++ b/drivers/iio/imu/adis16480.c @@ -620,9 +620,13 @@ static int adis16480_read_raw(struct iio_dev *indio_dev, *val2 = (st->chip_info->temp_scale % 1000) * 1000; return IIO_VAL_INT_PLUS_MICRO; case IIO_PRESSURE: - *val = 0; - *val2 = 4000; /* 40ubar = 0.004 kPa */ - return IIO_VAL_INT_PLUS_MICRO; + /* + * max scale is 1310 mbar + * max raw value is 32767 shifted for 32bits + */ + *val = 131; /* 1310mbar = 131 kPa */ + *val2 = 32767 << 16; + return IIO_VAL_FRACTIONAL; default: return -EINVAL; } @@ -783,13 +787,14 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { .channels = adis16485_channels, .num_channels = ARRAY_SIZE(adis16485_channels), /* - * storing the value in rad/degree and the scale in degree - * gives us the result in rad and better precession than - * storing the scale directly in rad. + * Typically we do IIO_RAD_TO_DEGREE in the denominator, which + * is exactly the same as IIO_DEGREE_TO_RAD in numerator, since + * it gives better approximation. However, in this case we + * cannot do it since it would not fit in a 32bit variable. */ - .gyro_max_val = IIO_RAD_TO_DEGREE(22887), - .gyro_max_scale = 300, - .accel_max_val = IIO_M_S_2_TO_G(21973), + .gyro_max_val = 22887 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(300), + .accel_max_val = IIO_M_S_2_TO_G(21973 << 16), .accel_max_scale = 18, .temp_scale = 5650, /* 5.65 milli degree Celsius */ .int_clk = 2460000, @@ -799,9 +804,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16480] = { .channels = adis16480_channels, .num_channels = ARRAY_SIZE(adis16480_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(22500), - .gyro_max_scale = 450, - .accel_max_val = IIO_M_S_2_TO_G(12500), + .gyro_max_val = 22500 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(450), + .accel_max_val = IIO_M_S_2_TO_G(12500 << 16), .accel_max_scale = 10, .temp_scale = 5650, /* 5.65 milli degree Celsius */ .int_clk = 2460000, @@ -811,9 +816,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16485] = { .channels = adis16485_channels, .num_channels = ARRAY_SIZE(adis16485_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(22500), - .gyro_max_scale = 450, - .accel_max_val = IIO_M_S_2_TO_G(20000), + .gyro_max_val = 22500 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(450), + .accel_max_val = IIO_M_S_2_TO_G(20000 << 16), .accel_max_scale = 5, .temp_scale = 5650, /* 5.65 milli degree Celsius */ .int_clk = 2460000, @@ -823,9 +828,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16488] = { .channels = adis16480_channels, .num_channels = ARRAY_SIZE(adis16480_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(22500), - .gyro_max_scale = 450, - .accel_max_val = IIO_M_S_2_TO_G(22500), + .gyro_max_val = 22500 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(450), + .accel_max_val = IIO_M_S_2_TO_G(22500 << 16), .accel_max_scale = 18, .temp_scale = 5650, /* 5.65 milli degree Celsius */ .int_clk = 2460000, @@ -835,9 +840,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16495_1] = { .channels = adis16485_channels, .num_channels = ARRAY_SIZE(adis16485_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(20000), - .gyro_max_scale = 125, - .accel_max_val = IIO_M_S_2_TO_G(32000), + .gyro_max_val = 20000 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(125), + .accel_max_val = IIO_M_S_2_TO_G(32000 << 16), .accel_max_scale = 8, .temp_scale = 12500, /* 12.5 milli degree Celsius */ .int_clk = 4250000, @@ -848,9 +853,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16495_2] = { .channels = adis16485_channels, .num_channels = ARRAY_SIZE(adis16485_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(18000), - .gyro_max_scale = 450, - .accel_max_val = IIO_M_S_2_TO_G(32000), + .gyro_max_val = 18000 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(450), + .accel_max_val = IIO_M_S_2_TO_G(32000 << 16), .accel_max_scale = 8, .temp_scale = 12500, /* 12.5 milli degree Celsius */ .int_clk = 4250000, @@ -861,9 +866,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16495_3] = { .channels = adis16485_channels, .num_channels = ARRAY_SIZE(adis16485_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(20000), - .gyro_max_scale = 2000, - .accel_max_val = IIO_M_S_2_TO_G(32000), + .gyro_max_val = 20000 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(2000), + .accel_max_val = IIO_M_S_2_TO_G(32000 << 16), .accel_max_scale = 8, .temp_scale = 12500, /* 12.5 milli degree Celsius */ .int_clk = 4250000, @@ -874,9 +879,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16497_1] = { .channels = adis16485_channels, .num_channels = ARRAY_SIZE(adis16485_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(20000), - .gyro_max_scale = 125, - .accel_max_val = IIO_M_S_2_TO_G(32000), + .gyro_max_val = 20000 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(125), + .accel_max_val = IIO_M_S_2_TO_G(32000 << 16), .accel_max_scale = 40, .temp_scale = 12500, /* 12.5 milli degree Celsius */ .int_clk = 4250000, @@ -887,9 +892,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16497_2] = { .channels = adis16485_channels, .num_channels = ARRAY_SIZE(adis16485_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(18000), - .gyro_max_scale = 450, - .accel_max_val = IIO_M_S_2_TO_G(32000), + .gyro_max_val = 18000 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(450), + .accel_max_val = IIO_M_S_2_TO_G(32000 << 16), .accel_max_scale = 40, .temp_scale = 12500, /* 12.5 milli degree Celsius */ .int_clk = 4250000, @@ -900,9 +905,9 @@ static const struct adis16480_chip_info adis16480_chip_info[] = { [ADIS16497_3] = { .channels = adis16485_channels, .num_channels = ARRAY_SIZE(adis16485_channels), - .gyro_max_val = IIO_RAD_TO_DEGREE(20000), - .gyro_max_scale = 2000, - .accel_max_val = IIO_M_S_2_TO_G(32000), + .gyro_max_val = 20000 << 16, + .gyro_max_scale = IIO_DEGREE_TO_RAD(2000), + .accel_max_val = IIO_M_S_2_TO_G(32000 << 16), .accel_max_scale = 40, .temp_scale = 12500, /* 12.5 milli degree Celsius */ .int_clk = 4250000, From patchwork Fri Oct 25 12:45:08 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 8bit X-Patchwork-Submitter: Nuno Sa X-Patchwork-Id: 11212257 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 0A5D8139A for ; Fri, 25 Oct 2019 12:45:10 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id D172F21D7B for ; Fri, 25 Oct 2019 12:45:09 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=analog.onmicrosoft.com header.i=@analog.onmicrosoft.com header.b="Oss1IIhc" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2403762AbfJYMpH (ORCPT ); Fri, 25 Oct 2019 08:45:07 -0400 Received: from mx0b-00128a01.pphosted.com ([148.163.139.77]:13924 "EHLO 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(10.64.69.107) with Microsoft SMTP Server (TLS) id 14.3.408.0; Fri, 25 Oct 2019 08:44:42 -0400 From: =?utf-8?q?Nuno_S=C3=A1?= To: CC: Lars-Peter Clausen , Michael Hennerich , Jonathan Cameron , Hartmut Knaack , Peter Meerwald-Stadler Subject: [PATCH 2/2] iio: adis16480: Add debugfs_reg_access entry Date: Fri, 25 Oct 2019 14:45:08 +0200 Message-ID: <20191025124508.166648-2-nuno.sa@analog.com> X-Mailer: git-send-email 2.23.0 In-Reply-To: <20191025124508.166648-1-nuno.sa@analog.com> References: <20191025124508.166648-1-nuno.sa@analog.com> MIME-Version: 1.0 X-Originating-IP: [10.44.3.90] X-ADIRoutedOnPrem: True X-EOPAttributedMessage: 0 X-MS-Office365-Filtering-HT: Tenant X-Forefront-Antispam-Report: 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X-Microsoft-Antispam-Message-Info: ssKMGnUdzcuGI9+RtjbKfoGvfjQWIBWg2NXnAfATM+MKZ6TUFSZCTTlsCIPlqyccAN7CKEtamwP93faCfhzBxrDte1Wp4lbENMTjLGto1poHugq3Rqru2ACoUUTObHZep8yVjOhcs+bpLuyEPV8VY/EsD/7qu19W8wrqVJiXlHDaRRr8F4WWVxujD2nLrNk4Bs9IQ7WSOMzC6PaVQ9HueBOyEZaH19iOVFFYXvh4HoZqqT0tbFjqi9zHQhCCaAYRwwN1d6/XsiIJaYnTVAUJRh5Oir0oW2luOHsD5Yo4+j4QlEzkhzMSo/WF/c+RHQTWMCGX6+T4NLPLqe6EWK1/tkEc02hnK7lItXs0pJRcGQkJ6RuEc53WPpK7aqQrXREEzM41TWBXBHcDZd+PXnWBJ0IscmvuwxXRxqkPuMAJMo3tzYH30elz2T1PiLdJyMAs X-OriginatorOrg: analog.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 25 Oct 2019 12:44:42.9444 (UTC) X-MS-Exchange-CrossTenant-Network-Message-Id: 8ba83783-947f-4c08-d0b9-08d759491bd3 X-MS-Exchange-CrossTenant-Id: eaa689b4-8f87-40e0-9c6f-7228de4d754a X-MS-Exchange-CrossTenant-OriginalAttributedTenantConnectingIp: TenantId=eaa689b4-8f87-40e0-9c6f-7228de4d754a;Ip=[137.71.25.57];Helo=[nwd2mta2.analog.com] X-MS-Exchange-CrossTenant-FromEntityHeader: HybridOnPrem X-MS-Exchange-Transport-CrossTenantHeadersStamped: DM6PR03MB4844 X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:6.0.95,1.0.8 definitions=2019-10-25_07:2019-10-25,2019-10-25 signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 lowpriorityscore=0 priorityscore=1501 suspectscore=1 mlxlogscore=965 phishscore=0 impostorscore=0 clxscore=1015 malwarescore=0 spamscore=0 bulkscore=0 mlxscore=0 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.12.0-1908290000 definitions=main-1910250121 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org The driver is defining debugfs entries by calling `adis16480_debugfs_init()`. However, those entries are attached to the iio_dev debugfs entry which won't exist if no debugfs_reg_access callback is provided. Signed-off-by: Nuno Sá --- drivers/iio/imu/adis16480.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/iio/imu/adis16480.c b/drivers/iio/imu/adis16480.c index 3b53bbb11bfb..94aa1c57e605 100644 --- a/drivers/iio/imu/adis16480.c +++ b/drivers/iio/imu/adis16480.c @@ -921,6 +921,7 @@ static const struct iio_info adis16480_info = { .read_raw = &adis16480_read_raw, .write_raw = &adis16480_write_raw, .update_scan_mode = adis_update_scan_mode, + .debugfs_reg_access = adis_debugfs_reg_access, }; static int adis16480_stop_device(struct iio_dev *indio_dev)