From patchwork Sun Feb 4 13:03:31 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Srinivas Pandruvada X-Patchwork-Id: 13544668 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.15]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D86E2224F0; Sun, 4 Feb 2024 13:03:38 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.15 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707051820; cv=none; b=h5M5wdDr9qFfqqNMxhHfV3a7UOUHyhFVh3ngGJZI6YQ+TkDIi4sJfae9bxWZr5yLIYDX3ZLH8mxeev/K3hctJol1LQNlsAkYChoRZ4cCbqp/6lTNtM/voiYspRSe89zPUuokhB3bNiHwRrWalRFL8l85Qnkb2h4VDGR1POIXcjE= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1707051820; c=relaxed/simple; bh=8fnhD77OrfYlSgrNTIP4SG3uiae2nbEmB/qZ4EdFOqI=; h=From:To:Cc:Subject:Date:Message-Id:In-Reply-To:References: MIME-Version; b=OZrP+VYEzE+NdIDn42yppqWELRdC/XnFC8xady/PREv8YRXxR/QUkumPCmp2bwAEKRPgcnEFCeB3G7BhIzsMkze08ugqJsKphaRC+BUW2mIZdbhKILNnDppn59CGVs+zQ80vh7pdgmnMr01bxT4qWlTMCr0jHYviG/OrhJ7pUD8= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=none smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=SIVK83DY; arc=none smtp.client-ip=198.175.65.15 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=none smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="SIVK83DY" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1707051819; x=1738587819; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=8fnhD77OrfYlSgrNTIP4SG3uiae2nbEmB/qZ4EdFOqI=; b=SIVK83DY6P9Lo1VBVIqSeIREfROgzBww+ZoVWn5UaGNuipmaDYQcpPib oEQu6bGiTrDCHbO5eK04G8QTZoAg0gfQrYsNKcXw0B9Be2HAoDXxRfbBc A/Jle8JsTo4863Per7ICszIY41KyLvmT4c5AB6AZ78D8+cmKfHv07ikF1 6BgWo2PtBkUgybDtEMD6n56hM/YfLqv/+clm3uGHqyu6T8Eb6uKNyeqov QQmNTzreX78A4KO/LodyQkuXZyXp4doZ1lRc+Cu0Bi3gH9jxAT+G5av0w C8MxxnSAiay5+akqOjkOSfP4kyJ33aqBeNR5WOThS9nttELi9KCKwGX0o g==; X-IronPort-AV: E=McAfee;i="6600,9927,10973"; a="4283242" X-IronPort-AV: E=Sophos;i="6.05,242,1701158400"; d="scan'208";a="4283242" Received: from orviesa001.jf.intel.com ([10.64.159.141]) by orvoesa107.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Feb 2024 05:03:35 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.05,242,1701158400"; d="scan'208";a="37918238" Received: from spandruv-desk.jf.intel.com ([10.54.75.14]) by orviesa001.jf.intel.com with ESMTP; 04 Feb 2024 05:03:34 -0800 From: Srinivas Pandruvada To: jikos@kernel.org, jic23@kernel.org, lars@metafoo.de, Basavaraj.Natikar@amd.com Cc: linux-input@vger.kernel.org, linux-iio@vger.kernel.org, linux-kernel@vger.kernel.org, Srinivas Pandruvada Subject: [PATCH v4 3/4] iio: hid-sensor-als: Add light color temperature support Date: Sun, 4 Feb 2024 05:03:31 -0800 Message-Id: <20240204130332.2635760-4-srinivas.pandruvada@linux.intel.com> X-Mailer: git-send-email 2.40.1 In-Reply-To: <20240204130332.2635760-1-srinivas.pandruvada@linux.intel.com> References: <20240204130332.2635760-1-srinivas.pandruvada@linux.intel.com> Precedence: bulk X-Mailing-List: linux-iio@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 From: Basavaraj Natikar On some platforms, ambient color sensors also support light color temperature. Add support of light color temperature. Signed-off-by: Basavaraj Natikar Signed-off-by: Srinivas Pandruvada --- v4: - Index is fixed for each channel instead of packing for absent channels v3: Simplilified as no special processing is required in als_parse_report() v2: Original patch from Basavaraj Natikar is modified to prevent failure when the new usage id is not found in the descriptor. drivers/iio/light/hid-sensor-als.c | 21 +++++++++++++++++++++ include/linux/hid-sensor-ids.h | 1 + 2 files changed, 22 insertions(+) diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index 521af52b3f3b..0e9a25c51676 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -16,6 +16,7 @@ enum { CHANNEL_SCAN_INDEX_INTENSITY, CHANNEL_SCAN_INDEX_ILLUM, + CHANNEL_SCAN_INDEX_COLOR_TEMP, CHANNEL_SCAN_INDEX_MAX }; @@ -42,6 +43,7 @@ struct als_state { static const u32 als_usage_ids[] = { HID_USAGE_SENSOR_LIGHT_ILLUM, HID_USAGE_SENSOR_LIGHT_ILLUM, + HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE, }; static const u32 als_sensitivity_addresses[] = { @@ -73,6 +75,16 @@ static const struct iio_chan_spec als_channels[] = { BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), .scan_index = CHANNEL_SCAN_INDEX_ILLUM, }, + { + .type = IIO_COLORTEMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_SAMP_FREQ) | + BIT(IIO_CHAN_INFO_HYSTERESIS) | + BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), + .scan_index = CHANNEL_SCAN_INDEX_COLOR_TEMP, + }, IIO_CHAN_SOFT_TIMESTAMP(CHANNEL_SCAN_INDEX_TIMESTAMP) }; @@ -113,6 +125,11 @@ static int als_read_raw(struct iio_dev *indio_dev, min = als_state->als[chan->scan_index].logical_minimum; address = HID_USAGE_SENSOR_LIGHT_ILLUM; break; + case CHANNEL_SCAN_INDEX_COLOR_TEMP: + report_id = als_state->als[chan->scan_index].report_id; + min = als_state->als[chan->scan_index].logical_minimum; + address = HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE; + break; default: report_id = -1; break; @@ -233,6 +250,10 @@ static int als_capture_sample(struct hid_sensor_hub_device *hsdev, als_state->scan.illum[CHANNEL_SCAN_INDEX_ILLUM] = sample_data; ret = 0; break; + case HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE: + als_state->scan.illum[CHANNEL_SCAN_INDEX_COLOR_TEMP] = sample_data; + ret = 0; + break; case HID_USAGE_SENSOR_TIME_TIMESTAMP: als_state->timestamp = hid_sensor_convert_timestamp(&als_state->common_attributes, *(s64 *)raw_data); diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h index 13b1e65fbdcc..8af4fb3e0254 100644 --- a/include/linux/hid-sensor-ids.h +++ b/include/linux/hid-sensor-ids.h @@ -21,6 +21,7 @@ #define HID_USAGE_SENSOR_ALS 0x200041 #define HID_USAGE_SENSOR_DATA_LIGHT 0x2004d0 #define HID_USAGE_SENSOR_LIGHT_ILLUM 0x2004d1 +#define HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE 0x2004d2 /* PROX (200011) */ #define HID_USAGE_SENSOR_PROX 0x200011