From patchwork Wed Dec 2 10:13:55 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Stephan Gerhold X-Patchwork-Id: 11945577 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-18.7 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_GIT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ACB66C64E7C for ; Wed, 2 Dec 2020 10:18:46 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 5575322202 for ; Wed, 2 Dec 2020 10:18:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729269AbgLBKSc (ORCPT ); Wed, 2 Dec 2020 05:18:32 -0500 Received: from mo4-p02-ob.smtp.rzone.de ([85.215.255.81]:35078 "EHLO mo4-p02-ob.smtp.rzone.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1729352AbgLBKSc (ORCPT ); Wed, 2 Dec 2020 05:18:32 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; t=1606904137; s=strato-dkim-0002; d=gerhold.net; h=References:In-Reply-To:Message-Id:Date:Subject:Cc:To:From: X-RZG-CLASS-ID:X-RZG-AUTH:From:Subject:Sender; bh=8WxxH3T9uH57AYrirrvN7p1x1i+whQJhaNX94BhwbOo=; b=daCgMV/6gxb2amANVAa+hBAorKMglO73e7FzNmqsnthE923TOnL0e1FxZmQrw0lu7B IBlfynAZiy5l9F4IPpKvtgPE4eaeycptILAPXySb81AIxHsAggqFWqzz/Xg3kOs6Osic cnwAZlPDUT5ta01cFDftUZHRX7IZ7/DN1Ur8vb/CnhEsR5VdF7vzUvUKCI0mlV+z+K67 FPCU1xa6bTsYUlIFCubCOhh2tlwXsbRcEbMHqgc+PLr35qs2uPYpI+MkuJioYThdrTnp CQXwD50ozpihyBS+/lYuIgHNBOzA7qx4thk/jWAFTKP+HxWNntTK3I2SETZ9knf57GfU LgOw== X-RZG-AUTH: ":P3gBZUipdd93FF5ZZvYFPugejmSTVR2nRPhVORvLd4SsytBXS7IYBkLahKxB626NJkxR" X-RZG-CLASS-ID: mo00 Received: from localhost.localdomain by smtp.strato.de (RZmta 47.3.4 SBL|AUTH) with ESMTPSA id Z061efwB2AFUWXb (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256 bits)) (Client did not present a certificate); Wed, 2 Dec 2020 11:15:30 +0100 (CET) From: Stephan Gerhold To: Jonathan Cameron Cc: Lars-Peter Clausen , Peter Meerwald-Stadler , Rob Herring , linux-iio@vger.kernel.org, devicetree@vger.kernel.org, Jean-Baptiste Maneyrol , Stephan Gerhold Subject: [PATCH 2/2] iio: imu: inv_mpu6050: Add support for MPU-6880 Date: Wed, 2 Dec 2020 11:13:55 +0100 Message-Id: <20201202101355.87112-2-stephan@gerhold.net> X-Mailer: git-send-email 2.29.2 In-Reply-To: <20201202101355.87112-1-stephan@gerhold.net> References: <20201202101355.87112-1-stephan@gerhold.net> MIME-Version: 1.0 Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org MPU-6880 seems to be very similar to MPU-6500 / MPU-6050 and it works fine with some minor additions for the mpu6050 driver. Add the necessary defines for it and make it use the same registers as MPU-6500 but with a FIFO size of 4096. Cc: Jean-Baptiste Maneyrol Signed-off-by: Stephan Gerhold Signed-off-by: Stephan Gerhold --- I tested this on a Xiaomi Redmi 2 (or Wingtech WT88047). Unfortunately I was not able to find a proper register description for MPU-6880. :( It seems to work fine with both 6050 or 6500 registers but I guess that it is more similar to MPU-6500. Not sure though. I'm mainly unsure about .accl_offset = INV_MPU6500_REG_ACCEL_OFFSET, vs .accl_offset = INV_MPU6050_REG_ACCEL_OFFSET, Both registers read some funny values but I cannot say which one is more appropriate... Perhaps Jean-Baptiste can shed some light on this? :) --- drivers/iio/imu/inv_mpu6050/inv_mpu_core.c | 9 +++++++++ drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c | 5 +++++ drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h | 2 ++ drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c | 5 +++++ 4 files changed, 21 insertions(+) diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c index 18a1898e3e34..453c51c79655 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_core.c @@ -160,6 +160,14 @@ static const struct inv_mpu6050_hw hw_info[] = { .fifo_size = 512, .temp = {INV_MPU6500_TEMP_OFFSET, INV_MPU6500_TEMP_SCALE}, }, + { + .whoami = INV_MPU6880_WHOAMI_VALUE, + .name = "MPU6880", + .reg = ®_set_6500, + .config = &chip_config_6500, + .fifo_size = 4096, + .temp = {INV_MPU6500_TEMP_OFFSET, INV_MPU6500_TEMP_SCALE}, + }, { .whoami = INV_MPU6000_WHOAMI_VALUE, .name = "MPU6000", @@ -1323,6 +1331,7 @@ static int inv_check_and_setup_chip(struct inv_mpu6050_state *st) case INV_MPU6000: case INV_MPU6500: case INV_MPU6515: + case INV_MPU6880: case INV_MPU9250: case INV_MPU9255: /* reset signal path (required for spi connection) */ diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c index 28cfae1e61cf..95f16951c8f4 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_i2c.c @@ -177,6 +177,7 @@ static const struct i2c_device_id inv_mpu_id[] = { {"mpu6050", INV_MPU6050}, {"mpu6500", INV_MPU6500}, {"mpu6515", INV_MPU6515}, + {"mpu6880", INV_MPU6880}, {"mpu9150", INV_MPU9150}, {"mpu9250", INV_MPU9250}, {"mpu9255", INV_MPU9255}, @@ -204,6 +205,10 @@ static const struct of_device_id inv_of_match[] = { .compatible = "invensense,mpu6515", .data = (void *)INV_MPU6515 }, + { + .compatible = "invensense,mpu6880", + .data = (void *)INV_MPU6880 + }, { .compatible = "invensense,mpu9150", .data = (void *)INV_MPU9150 diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h index eb522b38acf3..58188dc0dd13 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_iio.h @@ -70,6 +70,7 @@ enum inv_devices { INV_MPU6050, INV_MPU6500, INV_MPU6515, + INV_MPU6880, INV_MPU6000, INV_MPU9150, INV_MPU9250, @@ -373,6 +374,7 @@ struct inv_mpu6050_state { #define INV_MPU6000_WHOAMI_VALUE 0x68 #define INV_MPU6050_WHOAMI_VALUE 0x68 #define INV_MPU6500_WHOAMI_VALUE 0x70 +#define INV_MPU6880_WHOAMI_VALUE 0x78 #define INV_MPU9150_WHOAMI_VALUE 0x68 #define INV_MPU9250_WHOAMI_VALUE 0x71 #define INV_MPU9255_WHOAMI_VALUE 0x73 diff --git a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c index 6f968ce687e1..b056f3fe2561 100644 --- a/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c +++ b/drivers/iio/imu/inv_mpu6050/inv_mpu_spi.c @@ -70,6 +70,7 @@ static const struct spi_device_id inv_mpu_id[] = { {"mpu6000", INV_MPU6000}, {"mpu6500", INV_MPU6500}, {"mpu6515", INV_MPU6515}, + {"mpu6880", INV_MPU6880}, {"mpu9250", INV_MPU9250}, {"mpu9255", INV_MPU9255}, {"icm20608", INV_ICM20608}, @@ -96,6 +97,10 @@ static const struct of_device_id inv_of_match[] = { .compatible = "invensense,mpu6515", .data = (void *)INV_MPU6515 }, + { + .compatible = "invensense,mpu6880", + .data = (void *)INV_MPU6880 + }, { .compatible = "invensense,mpu9250", .data = (void *)INV_MPU9250