From patchwork Mon Oct 21 05:54:03 2019 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Gwendal Grignou X-Patchwork-Id: 11201373 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 0554B1575 for ; Mon, 21 Oct 2019 05:54:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id CE8782089C for ; Mon, 21 Oct 2019 05:54:49 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="JWw77FZC" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727397AbfJUFyq (ORCPT ); Mon, 21 Oct 2019 01:54:46 -0400 Received: from mail-pf1-f193.google.com ([209.85.210.193]:42218 "EHLO mail-pf1-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727341AbfJUFyk (ORCPT ); Mon, 21 Oct 2019 01:54:40 -0400 Received: by mail-pf1-f193.google.com with SMTP id q12so7689530pff.9 for ; Sun, 20 Oct 2019 22:54:40 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=from:to:cc:subject:date:message-id:in-reply-to:references :mime-version:content-transfer-encoding; bh=7qM0INxFAaQNiMRb7wUF5tXn3Vp3+wTj0LnbR6ZyE/Y=; b=JWw77FZCCgw9YMLZ962GN2ViHYWlECdUlu/nHHxYn24wfZa/tGvxW4dT1MhU+eq1YK PEDnU8MbXqNlsiw2HqjnuRl6po5hzMkxNDVO1Q2XTWuk0ZM1QlWKgTh/YlsUnE0EtGiO GGKdWR19zADEohM382sAw/snKb2AATugWB9js= 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:in-reply-to :references:mime-version:content-transfer-encoding; bh=7qM0INxFAaQNiMRb7wUF5tXn3Vp3+wTj0LnbR6ZyE/Y=; b=M9QcdYLv7jTUWhmsmTQgLiYji4DJYMPXW3OyUgOm8D+YwzQuvULcZ+YrvxnJVq94Ak vgltgYihWtAd/KsALUqMC8zkVTbpjdfzCgd82IgukhzGgibGSFLXoUL6L1D3/LKgNaLW cQp4LKd+0pDdsneza26vKT1C34GFTrkpl8VjS5VGXf0XiedpvWEIf7k9zXL1QdvsMQwM NQg8+MP7gyWykO0Yx8f7ptOsWDCIbsWXYlXR1YkKGRgdAGPLRt0cy/5IqYU8SXTP+s2S s+DiLg3wmwz7XwY70qQxpOECSNw6m3xj+Zyew6ILjv/Vw3QzHq7366ngypMW7dbNb690 /82A== X-Gm-Message-State: APjAAAXIM0uZfqNQ5VsfNbiHA9md8U7sZYQFMx89ZeczvcrVNNctuBht lxVq1ZSDN4q4Ul12n2K/gQod+w== X-Google-Smtp-Source: APXvYqyG3qpMge7NE3llGhFUegOMLLRrvzpwhlN0fGWuEykOP9u2aFiWJvMLJuUBAfhtz8q/dXLFLA== X-Received: by 2002:a63:2f47:: with SMTP id v68mr19033909pgv.318.1571637279955; Sun, 20 Oct 2019 22:54:39 -0700 (PDT) Received: from localhost ([2620:15c:202:1:3c8f:512b:3522:dfaf]) by smtp.gmail.com with ESMTPSA id r24sm14718031pfh.69.2019.10.20.22.54.39 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 20 Oct 2019 22:54:39 -0700 (PDT) From: Gwendal Grignou To: briannorris@chromium.org, jic23@kernel.org, knaack.h@gmx.de, lars@metafoo.de, pmeerw@pmeerw.net, lee.jones@linaro.org, bleung@chromium.org, enric.balletbo@collabora.com, dianders@chromium.org, groeck@chromium.org, fabien.lahoudere@collabora.com Cc: linux-kernel@vger.kernel.org, linux-iio@vger.kernel.org, Gwendal Grignou Subject: [PATCH v2 18/18] iio: cros_ec: Use Hertz as unit for sampling frequency Date: Sun, 20 Oct 2019 22:54:03 -0700 Message-Id: <20191021055403.67849-19-gwendal@chromium.org> X-Mailer: git-send-email 2.23.0.866.gb869b98d4c-goog In-Reply-To: <20191021055403.67849-1-gwendal@chromium.org> References: <20191021055403.67849-1-gwendal@chromium.org> MIME-Version: 1.0 Sender: linux-iio-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-iio@vger.kernel.org To be compliant with other sensors, set and get sensor sampling frequency in Hz, not mHz. Fixes: ae7b02ad2f32 ("iio: common: cros_ec_sensors: Expose cros_ec_sensors frequency range via iio sysfs") Signed-off-by: Gwendal Grignou Acked-by: Jonathan Cameron --- No changes in v2. .../cros_ec_sensors/cros_ec_sensors_core.c | 32 +++++++++++-------- .../linux/iio/common/cros_ec_sensors_core.h | 6 ++-- 2 files changed, 22 insertions(+), 16 deletions(-) diff --git a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c index f50e239f9a1e9..76dc8cad1b4b5 100644 --- a/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c +++ b/drivers/iio/common/cros_ec_sensors/cros_ec_sensors_core.c @@ -256,6 +256,7 @@ int cros_ec_sensors_core_init(struct platform_device *pdev, struct cros_ec_dev *ec = sensor_hub->ec; struct cros_ec_sensor_platform *sensor_platform = dev_get_platdata(dev); u32 ver_mask; + int frequencies[ARRAY_SIZE(state->frequencies) / 2] = { 0 }; int ret, i; platform_set_drvdata(pdev, indio_dev); @@ -304,20 +305,22 @@ int cros_ec_sensors_core_init(struct platform_device *pdev, state->calib[i].scale = MOTION_SENSE_DEFAULT_SCALE; /* 0 is a correct value used to stop the device */ - state->frequencies[0] = 0; if (state->msg->version < 3) { get_default_min_max_freq(state->resp->info.type, - &state->frequencies[1], - &state->frequencies[2], + &frequencies[1], + &frequencies[2], &state->fifo_max_event_count); } else { - state->frequencies[1] = - state->resp->info_3.min_frequency; - state->frequencies[2] = - state->resp->info_3.max_frequency; + frequencies[1] = state->resp->info_3.min_frequency; + frequencies[2] = state->resp->info_3.max_frequency; state->fifo_max_event_count = state->resp->info_3.fifo_max_event_count; } + for (i = 0; i < ARRAY_SIZE(frequencies); i++) { + state->frequencies[2 * i] = frequencies[i] / 1000; + state->frequencies[2 * i + 1] = + (frequencies[i] % 1000) * 1000; + } ret = devm_iio_triggered_buffer_setup( dev, indio_dev, NULL, @@ -707,7 +710,7 @@ int cros_ec_sensors_core_read(struct cros_ec_sensors_core_state *st, struct iio_chan_spec const *chan, int *val, int *val2, long mask) { - int ret; + int ret, frequency; switch (mask) { case IIO_CHAN_INFO_SAMP_FREQ: @@ -719,8 +722,10 @@ int cros_ec_sensors_core_read(struct cros_ec_sensors_core_state *st, if (ret) break; - *val = st->resp->sensor_odr.ret; - ret = IIO_VAL_INT; + frequency = st->resp->sensor_odr.ret; + *val = frequency / 1000; + *val2 = (frequency % 1000) * 1000; + ret = IIO_VAL_INT_PLUS_MICRO; break; default: ret = -EINVAL; @@ -755,7 +760,7 @@ int cros_ec_sensors_core_read_avail(struct iio_dev *indio_dev, case IIO_CHAN_INFO_SAMP_FREQ: *length = ARRAY_SIZE(state->frequencies); *vals = (const int *)&state->frequencies; - *type = IIO_VAL_INT; + *type = IIO_VAL_INT_PLUS_MICRO; return IIO_AVAIL_LIST; } @@ -777,12 +782,13 @@ int cros_ec_sensors_core_write(struct cros_ec_sensors_core_state *st, struct iio_chan_spec const *chan, int val, int val2, long mask) { - int ret; + int ret, frequency; switch (mask) { case IIO_CHAN_INFO_SAMP_FREQ: + frequency = val * 1000 + val2 / 1000; st->param.cmd = MOTIONSENSE_CMD_SENSOR_ODR; - st->param.sensor_odr.data = val; + st->param.sensor_odr.data = frequency; /* Always roundup, so caller gets at least what it asks for. */ st->param.sensor_odr.roundup = 1; diff --git a/include/linux/iio/common/cros_ec_sensors_core.h b/include/linux/iio/common/cros_ec_sensors_core.h index 4df3abd151fbf..256447b136296 100644 --- a/include/linux/iio/common/cros_ec_sensors_core.h +++ b/include/linux/iio/common/cros_ec_sensors_core.h @@ -52,6 +52,8 @@ typedef irqreturn_t (*cros_ec_sensors_capture_t)(int irq, void *p); * is always 8-byte aligned. * @read_ec_sensors_data: function used for accessing sensors values * @fifo_max_event_count: Size of the EC sensor FIFO + * @frequencies: Table of known available frequencies: + * 0, Min and Max in mHz. */ struct cros_ec_sensors_core_state { struct cros_ec_device *ec; @@ -75,9 +77,7 @@ struct cros_ec_sensors_core_state { unsigned long scan_mask, s16 *data); u32 fifo_max_event_count; - - /* Table of known available frequencies : 0, Min and Max in mHz */ - int frequencies[3]; + int frequencies[6]; }; int cros_ec_sensors_read_lpc(struct iio_dev *indio_dev, unsigned long scan_mask,