add new system file

hc

2024-02-20 102a0743326a03cd1a1202ceda21e175b7d3575c

 kernel/drivers/input/touchscreen/stmpe-ts.c
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@@ -1,14 +1,9 @@
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+// SPDX-License-Identifier: GPL-2.0-or-later
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 /*
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  * STMicroelectronics STMPE811 Touchscreen Driver
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  *
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  * (C) 2010 Luotao Fu <l.fu@pengutronix.de>
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  * All rights reserved.
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- *
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- *  This program is free software; you can redistribute  it and/or modify it
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- *  under  the terms of  the GNU General  Public License as published by the
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- *  Free Software Foundation;  either version 2 of the  License, or (at your
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- *  option) any later version.
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- *
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  */
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 #include <linux/kernel.h>
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@@ -30,8 +25,6 @@
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  * with touchscreen controller
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  */
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 #define STMPE_REG_INT_STA		0x0B
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-#define STMPE_REG_ADC_CTRL1		0x20
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-#define STMPE_REG_ADC_CTRL2		0x21
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 #define STMPE_REG_TSC_CTRL		0x40
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 #define STMPE_REG_TSC_CFG		0x41
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 #define STMPE_REG_FIFO_TH		0x4A
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@@ -49,17 +42,6 @@
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 #define STMPE_IRQ_TOUCH_DET		0
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44
 
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-#define SAMPLE_TIME(x)			((x & 0xf) << 4)
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-#define MOD_12B(x)			((x & 0x1) << 3)
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-#define REF_SEL(x)			((x & 0x1) << 1)
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-#define ADC_FREQ(x)			(x & 0x3)
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-#define AVE_CTRL(x)			((x & 0x3) << 6)
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-#define DET_DELAY(x)			((x & 0x7) << 3)
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-#define SETTLING(x)			(x & 0x7)
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-#define FRACTION_Z(x)			(x & 0x7)
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-#define I_DRIVE(x)			(x & 0x1)
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-#define OP_MODE(x)			((x & 0x7) << 1)
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-
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 #define STMPE_TS_NAME			"stmpe-ts"
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 #define XY_MASK				0xfff
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@@ -69,15 +51,6 @@
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  * @idev: registered input device
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  * @work: a work item used to scan the device
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  * @dev: a pointer back to the MFD cell struct device*
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- * @sample_time: ADC converstion time in number of clock.
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- * (0 -> 36 clocks, 1 -> 44 clocks, 2 -> 56 clocks, 3 -> 64 clocks,
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- * 4 -> 80 clocks, 5 -> 96 clocks, 6 -> 144 clocks),
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- * recommended is 4.
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- * @mod_12b: ADC Bit mode (0 -> 10bit ADC, 1 -> 12bit ADC)
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- * @ref_sel: ADC reference source
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- * (0 -> internal reference, 1 -> external reference)
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- * @adc_freq: ADC Clock speed
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- * (0 -> 1.625 MHz, 1 -> 3.25 MHz, 2 || 3 -> 6.5 MHz)
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  * @ave_ctrl: Sample average control
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  * (0 -> 1 sample, 1 -> 2 samples, 2 -> 4 samples, 3 -> 8 samples)
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  * @touch_det_delay: Touch detect interrupt delay
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@@ -99,10 +72,6 @@
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 	struct input_dev *idev;
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 	struct delayed_work work;
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 	struct device *dev;
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-	u8 sample_time;
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-	u8 mod_12b;
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-	u8 ref_sel;
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-	u8 adc_freq;
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 	u8 ave_ctrl;
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 	u8 touch_det_delay;
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 	u8 settling;
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@@ -203,7 +172,7 @@
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 static int stmpe_init_hw(struct stmpe_touch *ts)
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 {
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 	int ret;
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-	u8 adc_ctrl1, adc_ctrl1_mask, tsc_cfg, tsc_cfg_mask;
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+	u8 tsc_cfg, tsc_cfg_mask;
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 	struct stmpe *stmpe = ts->stmpe;
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 	struct device *dev = ts->dev;
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@@ -213,27 +182,17 @@
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 		return ret;
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 	}
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-	adc_ctrl1 = SAMPLE_TIME(ts->sample_time) | MOD_12B(ts->mod_12b) |
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-		REF_SEL(ts->ref_sel);
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-	adc_ctrl1_mask = SAMPLE_TIME(0xff) | MOD_12B(0xff) | REF_SEL(0xff);
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-
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-	ret = stmpe_set_bits(stmpe, STMPE_REG_ADC_CTRL1,
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-			adc_ctrl1_mask, adc_ctrl1);
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+	ret = stmpe811_adc_common_init(stmpe);
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 	if (ret) {
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-		dev_err(dev, "Could not setup ADC\n");
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+		stmpe_disable(stmpe, STMPE_BLOCK_TOUCHSCREEN | STMPE_BLOCK_ADC);
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 		return ret;
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 	}
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-	ret = stmpe_set_bits(stmpe, STMPE_REG_ADC_CTRL2,
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-			ADC_FREQ(0xff), ADC_FREQ(ts->adc_freq));
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-	if (ret) {
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-		dev_err(dev, "Could not setup ADC\n");
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-		return ret;
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-	}
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-
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-	tsc_cfg = AVE_CTRL(ts->ave_ctrl) | DET_DELAY(ts->touch_det_delay) |
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-			SETTLING(ts->settling);
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-	tsc_cfg_mask = AVE_CTRL(0xff) | DET_DELAY(0xff) | SETTLING(0xff);
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+	tsc_cfg = STMPE_AVE_CTRL(ts->ave_ctrl) |
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+		  STMPE_DET_DELAY(ts->touch_det_delay) |
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+		  STMPE_SETTLING(ts->settling);
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+	tsc_cfg_mask = STMPE_AVE_CTRL(0xff) | STMPE_DET_DELAY(0xff) |
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+		       STMPE_SETTLING(0xff);
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 	ret = stmpe_set_bits(stmpe, STMPE_REG_TSC_CFG, tsc_cfg_mask, tsc_cfg);
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 	if (ret) {
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@@ -242,14 +201,14 @@
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 	}
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 	ret = stmpe_set_bits(stmpe, STMPE_REG_TSC_FRACTION_Z,
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-			FRACTION_Z(0xff), FRACTION_Z(ts->fraction_z));
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+			STMPE_FRACTION_Z(0xff), STMPE_FRACTION_Z(ts->fraction_z));
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 	if (ret) {
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 		dev_err(dev, "Could not config touch\n");
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 		return ret;
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 	}
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 	ret = stmpe_set_bits(stmpe, STMPE_REG_TSC_I_DRIVE,
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-			I_DRIVE(0xff), I_DRIVE(ts->i_drive));
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+			STMPE_I_DRIVE(0xff), STMPE_I_DRIVE(ts->i_drive));
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 	if (ret) {
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 		dev_err(dev, "Could not config touch\n");
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 		return ret;
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@@ -263,7 +222,7 @@
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 	}
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 	ret = stmpe_set_bits(stmpe, STMPE_REG_TSC_CTRL,
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-			OP_MODE(0xff), OP_MODE(OP_MOD_XYZ));
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+			STMPE_OP_MODE(0xff), STMPE_OP_MODE(OP_MOD_XYZ));
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 	if (ret) {
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 		dev_err(dev, "Could not set mode\n");
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 		return ret;
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@@ -303,13 +262,13 @@
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 	if (np) {
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 		if (!of_property_read_u32(np, "st,sample-time", &val))
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-			ts->sample_time = val;
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+			ts->stmpe->sample_time = val;
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 		if (!of_property_read_u32(np, "st,mod-12b", &val))
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-			ts->mod_12b = val;
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+			ts->stmpe->mod_12b = val;
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 		if (!of_property_read_u32(np, "st,ref-sel", &val))
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-			ts->ref_sel = val;
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+			ts->stmpe->ref_sel = val;
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 		if (!of_property_read_u32(np, "st,adc-freq", &val))
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-			ts->adc_freq = val;
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+			ts->stmpe->adc_freq = val;
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 		if (!of_property_read_u32(np, "st,ave-ctrl", &val))
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 			ts->ave_ctrl = val;
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 		if (!of_property_read_u32(np, "st,touch-det-delay", &val))