Commit 7d71d289 authored by Maslov Dmitry's avatar Maslov Dmitry Committed by Jonathan Cameron
Browse files

iio: light: ltr501: Added ltr303 driver support 



Previously ltr501 driver supported a number of light and,
proximity sensors including ltr501, ltr559 and ltr301.
This adds support for another light sensor ltr303
used in Seeed Studio reTerminal, a carrier board
for Raspberry Pi 4 CM.

Signed-off-by: default avatarMaslov Dmitry <maslovdmitry@seeed.cc>
Link: https://lore.kernel.org/r/20211106174137.6783-1-maslovdmitry@seeed.cc


Signed-off-by: default avatarJonathan Cameron <Jonathan.Cameron@huawei.com>
parent 471d040d

drivers/iio/light/ltr501.c

+16 −1
Original line number Diff line number Diff line 
// SPDX-License-Identifier: GPL-2.0-only

/*

 * ltr501.c - Support for Lite-On LTR501 ambient light and proximity sensor

 * Support for Lite-On LTR501 and similar ambient light and proximity sensors.

 *

 * Copyright 2014 Peter Meerwald <pmeerw@pmeerw.net>

 *
@@ -98,6 +98,7 @@ enum { 
	ltr501 = 0,

	ltr559,

	ltr301,

	ltr303,

};



struct ltr501_gain {
@@ -1231,6 +1232,18 @@ static const struct ltr501_chip_info ltr501_chip_info_tbl[] = { 
		.channels = ltr301_channels,

		.no_channels = ARRAY_SIZE(ltr301_channels),

	},

	[ltr303] = {

		.partid = 0x0A,

		.als_gain = ltr559_als_gain_tbl,

		.als_gain_tbl_size = ARRAY_SIZE(ltr559_als_gain_tbl),

		.als_mode_active = BIT(0),

		.als_gain_mask = BIT(2) | BIT(3) | BIT(4),

		.als_gain_shift = 2,

		.info = &ltr301_info,

		.info_no_irq = &ltr301_info_no_irq,

		.channels = ltr301_channels,

		.no_channels = ARRAY_SIZE(ltr301_channels),

	},

};



static int ltr501_write_contr(struct ltr501_data *data, u8 als_val, u8 ps_val)
@@ -1605,6 +1618,7 @@ static const struct i2c_device_id ltr501_id[] = { 
	{ "ltr501", ltr501},

	{ "ltr559", ltr559},

	{ "ltr301", ltr301},

	{ "ltr303", ltr303},

	{ }

};

MODULE_DEVICE_TABLE(i2c, ltr501_id);
@@ -1613,6 +1627,7 @@ static const struct of_device_id ltr501_of_match[] = { 
	{ .compatible = "liteon,ltr501", },

	{ .compatible = "liteon,ltr559", },

	{ .compatible = "liteon,ltr301", },

	{ .compatible = "liteon,ltr303", },

	{}

};

MODULE_DEVICE_TABLE(of, ltr501_of_match);