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39e4e75a9f
Up to now tsc200x_remove() returns zero unconditionally. Make it return void instead which makes it easier to see in the callers that there is no error to handle. Also the return value of i2c and spi remove callbacks is ignored anyway. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Link: https://lore.kernel.org/r/20211012153945.2651412-7-u.kleine-koenig@pengutronix.de Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
79 lines
2.5 KiB
C
79 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TSC200X_CORE_H
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#define _TSC200X_CORE_H
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/* control byte 1 */
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#define TSC200X_CMD 0x80
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#define TSC200X_CMD_NORMAL 0x00
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#define TSC200X_CMD_STOP 0x01
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#define TSC200X_CMD_12BIT 0x04
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/* control byte 0 */
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#define TSC200X_REG_READ 0x01 /* R/W access */
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#define TSC200X_REG_PND0 0x02 /* Power Not Down Control */
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#define TSC200X_REG_X (0x0 << 3)
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#define TSC200X_REG_Y (0x1 << 3)
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#define TSC200X_REG_Z1 (0x2 << 3)
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#define TSC200X_REG_Z2 (0x3 << 3)
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#define TSC200X_REG_AUX (0x4 << 3)
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#define TSC200X_REG_TEMP1 (0x5 << 3)
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#define TSC200X_REG_TEMP2 (0x6 << 3)
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#define TSC200X_REG_STATUS (0x7 << 3)
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#define TSC200X_REG_AUX_HIGH (0x8 << 3)
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#define TSC200X_REG_AUX_LOW (0x9 << 3)
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#define TSC200X_REG_TEMP_HIGH (0xA << 3)
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#define TSC200X_REG_TEMP_LOW (0xB << 3)
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#define TSC200X_REG_CFR0 (0xC << 3)
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#define TSC200X_REG_CFR1 (0xD << 3)
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#define TSC200X_REG_CFR2 (0xE << 3)
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#define TSC200X_REG_CONV_FUNC (0xF << 3)
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/* configuration register 0 */
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#define TSC200X_CFR0_PRECHARGE_276US 0x0040
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#define TSC200X_CFR0_STABTIME_1MS 0x0300
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#define TSC200X_CFR0_CLOCK_1MHZ 0x1000
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#define TSC200X_CFR0_RESOLUTION12 0x2000
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#define TSC200X_CFR0_PENMODE 0x8000
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#define TSC200X_CFR0_INITVALUE (TSC200X_CFR0_STABTIME_1MS | \
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TSC200X_CFR0_CLOCK_1MHZ | \
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TSC200X_CFR0_RESOLUTION12 | \
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TSC200X_CFR0_PRECHARGE_276US | \
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TSC200X_CFR0_PENMODE)
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/* bits common to both read and write of configuration register 0 */
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#define TSC200X_CFR0_RW_MASK 0x3fff
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/* configuration register 1 */
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#define TSC200X_CFR1_BATCHDELAY_4MS 0x0003
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#define TSC200X_CFR1_INITVALUE TSC200X_CFR1_BATCHDELAY_4MS
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/* configuration register 2 */
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#define TSC200X_CFR2_MAVE_Z 0x0004
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#define TSC200X_CFR2_MAVE_Y 0x0008
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#define TSC200X_CFR2_MAVE_X 0x0010
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#define TSC200X_CFR2_AVG_7 0x0800
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#define TSC200X_CFR2_MEDIUM_15 0x3000
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#define TSC200X_CFR2_INITVALUE (TSC200X_CFR2_MAVE_X | \
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TSC200X_CFR2_MAVE_Y | \
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TSC200X_CFR2_MAVE_Z | \
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TSC200X_CFR2_MEDIUM_15 | \
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TSC200X_CFR2_AVG_7)
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#define MAX_12BIT 0xfff
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#define TSC200X_DEF_X_FUZZ 4
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#define TSC200X_DEF_Y_FUZZ 8
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#define TSC200X_DEF_P_FUZZ 2
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#define TSC200X_DEF_RESISTOR 280
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#define TSC2005_SPI_MAX_SPEED_HZ 10000000
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#define TSC200X_PENUP_TIME_MS 40
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extern const struct regmap_config tsc200x_regmap_config;
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extern const struct dev_pm_ops tsc200x_pm_ops;
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int tsc200x_probe(struct device *dev, int irq, const struct input_id *tsc_id,
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struct regmap *regmap,
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int (*tsc200x_cmd)(struct device *dev, u8 cmd));
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void tsc200x_remove(struct device *dev);
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#endif
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