This is a note to let you know that I've just added the patch titled

Revert "iio: hid-sensor-als: Add light chromaticity support"

to my char-misc git tree which can be found at git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc.git in the char-misc-linus branch.

The patch will show up in the next release of the linux-next tree (usually sometime within the next 24 hours during the week.)

The patch will hopefully also be merged in Linus's tree for the next -rc kernel release.

If you have any questions about this process, please let me know.

From b9670ee2e975e1cb6751019d5dc5c193aecd8ba2 Mon Sep 17 00:00:00 2001 From: Srinivas Pandruvada srinivas.pandruvada@linux.intel.com Date: Sun, 17 Dec 2023 12:07:02 -0800 Subject: Revert "iio: hid-sensor-als: Add light chromaticity support" MIME-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit

This reverts commit ee3710f39f9d0ae5137a866138d005fe1ad18132.

This commit assumes that every HID descriptor for ALS sensor has presence of usage id ID HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X and HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y. When the above usage ids are absent, driver probe fails. This breaks ALS sensor functionality on many platforms.

Till we have a good solution, revert this commit.

Reported-by: Thomas Weißschuh thomas@t-8ch.de Closes: https://bugzilla.kernel.org/show_bug.cgi?id=218223 Signed-off-by: Srinivas Pandruvada srinivas.pandruvada@linux.intel.com Cc: stable@vger.kernel.org Acked-by: Jonathan Cameron Jonathan.Cameron@huawei.com Link: https://lore.kernel.org/r/20231217200703.719876-2-srinivas.pandruvada@linux.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org --- drivers/iio/light/hid-sensor-als.c | 63 ------------------------------ include/linux/hid-sensor-ids.h | 3 -- 2 files changed, 66 deletions(-)

diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c index f17304b54468..d44b3f30ae4a 100644 --- a/drivers/iio/light/hid-sensor-als.c +++ b/drivers/iio/light/hid-sensor-als.c @@ -17,8 +17,6 @@ enum { CHANNEL_SCAN_INDEX_INTENSITY, CHANNEL_SCAN_INDEX_ILLUM, CHANNEL_SCAN_INDEX_COLOR_TEMP, - CHANNEL_SCAN_INDEX_CHROMATICITY_X, - CHANNEL_SCAN_INDEX_CHROMATICITY_Y, CHANNEL_SCAN_INDEX_MAX };

@@ -78,30 +76,6 @@ static const struct iio_chan_spec als_channels[] = { BIT(IIO_CHAN_INFO_HYSTERESIS_RELATIVE), .scan_index = CHANNEL_SCAN_INDEX_COLOR_TEMP, }, - { - .type = IIO_CHROMATICITY, - .modified = 1, - .channel2 = IIO_MOD_X, - .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_CHROMATICITY_X, - }, - { - .type = IIO_CHROMATICITY, - .modified = 1, - .channel2 = IIO_MOD_Y, - .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_CHROMATICITY_Y, - }, IIO_CHAN_SOFT_TIMESTAMP(CHANNEL_SCAN_INDEX_TIMESTAMP) };

@@ -145,16 +119,6 @@ static int als_read_raw(struct iio_dev *indio_dev, min = als_state->als[chan->scan_index].logical_minimum; address = HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE; break; - case CHANNEL_SCAN_INDEX_CHROMATICITY_X: - report_id = als_state->als[chan->scan_index].report_id; - min = als_state->als[chan->scan_index].logical_minimum; - address = HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X; - break; - case CHANNEL_SCAN_INDEX_CHROMATICITY_Y: - report_id = als_state->als[chan->scan_index].report_id; - min = als_state->als[chan->scan_index].logical_minimum; - address = HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y; - break; default: report_id = -1; break; @@ -279,14 +243,6 @@ static int als_capture_sample(struct hid_sensor_hub_device *hsdev, als_state->scan.illum[CHANNEL_SCAN_INDEX_COLOR_TEMP] = sample_data; ret = 0; break; - case HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X: - als_state->scan.illum[CHANNEL_SCAN_INDEX_CHROMATICITY_X] = sample_data; - ret = 0; - break; - case HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y: - als_state->scan.illum[CHANNEL_SCAN_INDEX_CHROMATICITY_Y] = 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); @@ -335,25 +291,6 @@ static int als_parse_report(struct platform_device *pdev, st->als[CHANNEL_SCAN_INDEX_COLOR_TEMP].index, st->als[CHANNEL_SCAN_INDEX_COLOR_TEMP].report_id);

- for (i = 0; i < 2; i++) { - int next_scan_index = CHANNEL_SCAN_INDEX_CHROMATICITY_X + i; - - ret = sensor_hub_input_get_attribute_info(hsdev, - HID_INPUT_REPORT, usage_id, - HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X + i, - &st->als[next_scan_index]); - if (ret < 0) - return ret; - - als_adjust_channel_bit_mask(channels, - CHANNEL_SCAN_INDEX_CHROMATICITY_X + i, - st->als[next_scan_index].size); - - dev_dbg(&pdev->dev, "als %x:%x\n", - st->als[next_scan_index].index, - st->als[next_scan_index].report_id); - } - st->scale_precision = hid_sensor_format_scale(usage_id, &st->als[CHANNEL_SCAN_INDEX_INTENSITY], &st->scale_pre_decml, &st->scale_post_decml); diff --git a/include/linux/hid-sensor-ids.h b/include/linux/hid-sensor-ids.h index 6730ee900ee1..8af4fb3e0254 100644 --- a/include/linux/hid-sensor-ids.h +++ b/include/linux/hid-sensor-ids.h @@ -22,9 +22,6 @@ #define HID_USAGE_SENSOR_DATA_LIGHT 0x2004d0 #define HID_USAGE_SENSOR_LIGHT_ILLUM 0x2004d1 #define HID_USAGE_SENSOR_LIGHT_COLOR_TEMPERATURE 0x2004d2 -#define HID_USAGE_SENSOR_LIGHT_CHROMATICITY 0x2004d3 -#define HID_USAGE_SENSOR_LIGHT_CHROMATICITY_X 0x2004d4 -#define HID_USAGE_SENSOR_LIGHT_CHROMATICITY_Y 0x2004d5

/* PROX (200011) */ #define HID_USAGE_SENSOR_PROX 0x200011