^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0-or-later
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * Samsung S3C24XX touchscreen driver
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) * Copyright 2004 Arnaud Patard <arnaud.patard@rtp-net.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright 2008 Ben Dooks <ben-linux@fluff.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * Copyright 2009 Simtec Electronics <linux@simtec.co.uk>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) * Additional work by Herbert Pötzl <herbert@13thfloor.at> and
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * Harald Welte <laforge@openmoko.org>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/kernel.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/input.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/clk.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) #include <linux/soc/samsung/s3c-adc.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <linux/platform_data/touchscreen-s3c2410.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) #define S3C2410_ADCCON (0x00)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) #define S3C2410_ADCTSC (0x04)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) #define S3C2410_ADCDLY (0x08)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29) #define S3C2410_ADCDAT0 (0x0C)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) #define S3C2410_ADCDAT1 (0x10)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) #define S3C64XX_ADCUPDN (0x14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) #define S3C2443_ADCMUX (0x18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) #define S3C64XX_ADCCLRINT (0x18)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define S5P_ADCMUX (0x1C)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define S3C64XX_ADCCLRINTPNDNUP (0x20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /* ADCTSC Register Bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define S3C2443_ADCTSC_UD_SEN (1 << 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define S3C2410_ADCTSC_YM_SEN (1<<7)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define S3C2410_ADCTSC_YP_SEN (1<<6)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define S3C2410_ADCTSC_XM_SEN (1<<5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) #define S3C2410_ADCTSC_XP_SEN (1<<4)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define S3C2410_ADCTSC_PULL_UP_DISABLE (1<<3)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44) #define S3C2410_ADCTSC_AUTO_PST (1<<2)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define S3C2410_ADCTSC_XY_PST(x) (((x)&0x3)<<0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47) /* ADCDAT0 Bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) #define S3C2410_ADCDAT0_UPDOWN (1<<15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) #define S3C2410_ADCDAT0_AUTO_PST (1<<14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) #define S3C2410_ADCDAT0_XY_PST (0x3<<12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51) #define S3C2410_ADCDAT0_XPDATA_MASK (0x03FF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) /* ADCDAT1 Bits */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) #define S3C2410_ADCDAT1_UPDOWN (1<<15)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) #define S3C2410_ADCDAT1_AUTO_PST (1<<14)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) #define S3C2410_ADCDAT1_XY_PST (0x3<<12)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) #define S3C2410_ADCDAT1_YPDATA_MASK (0x03FF)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) #define TSC_SLEEP (S3C2410_ADCTSC_PULL_UP_DISABLE | S3C2410_ADCTSC_XY_PST(0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) #define INT_DOWN (0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) #define INT_UP (1 << 8)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) #define WAIT4INT (S3C2410_ADCTSC_YM_SEN | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) S3C2410_ADCTSC_YP_SEN | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) S3C2410_ADCTSC_XP_SEN | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) S3C2410_ADCTSC_XY_PST(3))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) #define AUTOPST (S3C2410_ADCTSC_YM_SEN | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) S3C2410_ADCTSC_YP_SEN | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72) S3C2410_ADCTSC_XP_SEN | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) S3C2410_ADCTSC_AUTO_PST | \
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) S3C2410_ADCTSC_XY_PST(0))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) #define FEAT_PEN_IRQ (1 << 0) /* HAS ADCCLRINTPNDNUP */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78) /* Per-touchscreen data. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) * struct s3c2410ts - driver touchscreen state.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) * @client: The ADC client we registered with the core driver.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) * @dev: The device we are bound to.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) * @input: The input device we registered with the input subsystem.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) * @clock: The clock for the adc.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86) * @io: Pointer to the IO base.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) * @xp: The accumulated X position data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) * @yp: The accumulated Y position data.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) * @irq_tc: The interrupt number for pen up/down interrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) * @count: The number of samples collected.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) * @shift: The log2 of the maximum count to read in one go.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) * @features: The features supported by the TSADC MOdule.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) struct s3c2410ts {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) struct s3c_adc_client *client;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) struct device *dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) struct input_dev *input;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) struct clk *clock;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) void __iomem *io;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) unsigned long xp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) unsigned long yp;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) int irq_tc;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) int count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) int shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) int features;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) static struct s3c2410ts ts;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) * get_down - return the down state of the pen
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) * @data0: The data read from ADCDAT0 register.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) * @data1: The data read from ADCDAT1 register.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) * Return non-zero if both readings show that the pen is down.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) static inline bool get_down(unsigned long data0, unsigned long data1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) /* returns true if both data values show stylus down */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return (!(data0 & S3C2410_ADCDAT0_UPDOWN) &&
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) !(data1 & S3C2410_ADCDAT0_UPDOWN));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) static void touch_timer_fire(struct timer_list *unused)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) unsigned long data0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) unsigned long data1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) bool down;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) data0 = readl(ts.io + S3C2410_ADCDAT0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) data1 = readl(ts.io + S3C2410_ADCDAT1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) down = get_down(data0, data1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) if (down) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) if (ts.count == (1 << ts.shift)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) ts.xp >>= ts.shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) ts.yp >>= ts.shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) dev_dbg(ts.dev, "%s: X=%lu, Y=%lu, count=%d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) __func__, ts.xp, ts.yp, ts.count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) input_report_abs(ts.input, ABS_X, ts.xp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) input_report_abs(ts.input, ABS_Y, ts.yp);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) input_report_key(ts.input, BTN_TOUCH, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) input_sync(ts.input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) ts.xp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) ts.yp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) ts.count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) s3c_adc_start(ts.client, 0, 1 << ts.shift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) ts.xp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) ts.yp = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158) ts.count = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) input_report_key(ts.input, BTN_TOUCH, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) input_sync(ts.input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) static DEFINE_TIMER(touch_timer, touch_timer_fire);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) * stylus_irq - touchscreen stylus event interrupt
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) * @irq: The interrupt number
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) * @dev_id: The device ID.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) * Called when the IRQ_TC is fired for a pen up or down event.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) static irqreturn_t stylus_irq(int irq, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) unsigned long data0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) unsigned long data1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) bool down;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) data0 = readl(ts.io + S3C2410_ADCDAT0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) data1 = readl(ts.io + S3C2410_ADCDAT1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) down = get_down(data0, data1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) /* TODO we should never get an interrupt with down set while
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) * the timer is running, but maybe we ought to verify that the
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) * timer isn't running anyways. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) if (down)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) s3c_adc_start(ts.client, 0, 1 << ts.shift);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) dev_dbg(ts.dev, "%s: count=%d\n", __func__, ts.count);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) if (ts.features & FEAT_PEN_IRQ) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) /* Clear pen down/up interrupt */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) writel(0x0, ts.io + S3C64XX_ADCCLRINTPNDNUP);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) return IRQ_HANDLED;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) * s3c24xx_ts_conversion - ADC conversion callback
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) * @client: The client that was registered with the ADC core.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) * @data0: The reading from ADCDAT0.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) * @data1: The reading from ADCDAT1.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) * @left: The number of samples left.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) * Called when a conversion has finished.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) static void s3c24xx_ts_conversion(struct s3c_adc_client *client,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) unsigned data0, unsigned data1,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) unsigned *left)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) dev_dbg(ts.dev, "%s: %d,%d\n", __func__, data0, data1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) ts.xp += data0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) ts.yp += data1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) ts.count++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) /* From tests, it seems that it is unlikely to get a pen-up
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) * event during the conversion process which means we can
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) * ignore any pen-up events with less than the requisite
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227) * count done.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) * In several thousand conversions, no pen-ups where detected
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) * before count completed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) * s3c24xx_ts_select - ADC selection callback.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) * @client: The client that was registered with the ADC core.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) * @select: The reason for select.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) * Called when the ADC core selects (or deslects) us as a client.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) static void s3c24xx_ts_select(struct s3c_adc_client *client, unsigned select)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) if (select) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) writel(S3C2410_ADCTSC_PULL_UP_DISABLE | AUTOPST,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) ts.io + S3C2410_ADCTSC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) mod_timer(&touch_timer, jiffies+1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) writel(WAIT4INT | INT_UP, ts.io + S3C2410_ADCTSC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) * s3c2410ts_probe - device core probe entry point
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) * @pdev: The device we are being bound to.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) * Initialise, find and allocate any resources we need to run and then
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) * register with the ADC and input systems.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) static int s3c2410ts_probe(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) struct s3c2410_ts_mach_info *info;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) struct device *dev = &pdev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) struct input_dev *input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) struct resource *res;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) int ret = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) /* Initialise input stuff */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) memset(&ts, 0, sizeof(struct s3c2410ts));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) ts.dev = dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) info = dev_get_platdata(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) if (!info) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) dev_err(dev, "no platform data, cannot attach\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) return -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) dev_dbg(dev, "initialising touchscreen\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) ts.clock = clk_get(dev, "adc");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) if (IS_ERR(ts.clock)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) dev_err(dev, "cannot get adc clock source\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) return -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286) ret = clk_prepare_enable(ts.clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) dev_err(dev, "Failed! to enabled clocks\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) goto err_clk_get;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) dev_dbg(dev, "got and enabled clocks\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) ts.irq_tc = ret = platform_get_irq(pdev, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) dev_err(dev, "no resource for interrupt\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) goto err_clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300) if (!res) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) dev_err(dev, "no resource for registers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) ret = -ENOENT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303) goto err_clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) ts.io = ioremap(res->start, resource_size(res));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) if (ts.io == NULL) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308) dev_err(dev, "cannot map registers\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) goto err_clk;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) /* inititalise the gpio */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) if (info->cfg_gpio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) info->cfg_gpio(to_platform_device(ts.dev));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) ts.client = s3c_adc_register(pdev, s3c24xx_ts_select,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) s3c24xx_ts_conversion, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319) if (IS_ERR(ts.client)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) dev_err(dev, "failed to register adc client\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) ret = PTR_ERR(ts.client);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) goto err_iomap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) /* Initialise registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326) if ((info->delay & 0xffff) > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) writel(info->delay & 0xffff, ts.io + S3C2410_ADCDLY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) input_dev = input_allocate_device();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) if (!input_dev) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) dev_err(dev, "Unable to allocate the input device !!\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) ret = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) goto err_iomap;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) ts.input = input_dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) ts.input->evbit[0] = BIT_MASK(EV_KEY) | BIT_MASK(EV_ABS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) ts.input->keybit[BIT_WORD(BTN_TOUCH)] = BIT_MASK(BTN_TOUCH);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) input_set_abs_params(ts.input, ABS_X, 0, 0x3FF, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) input_set_abs_params(ts.input, ABS_Y, 0, 0x3FF, 0, 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) ts.input->name = "S3C24XX TouchScreen";
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) ts.input->id.bustype = BUS_HOST;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) ts.input->id.vendor = 0xDEAD;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347) ts.input->id.product = 0xBEEF;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) ts.input->id.version = 0x0102;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) ts.shift = info->oversampling_shift;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351) ts.features = platform_get_device_id(pdev)->driver_data;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) ret = request_irq(ts.irq_tc, stylus_irq, 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) "s3c2410_ts_pen", ts.input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) if (ret) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) dev_err(dev, "cannot get TC interrupt\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) goto err_inputdev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) dev_info(dev, "driver attached, registering input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362) /* All went ok, so register to the input system */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) ret = input_register_device(ts.input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364) if (ret < 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) dev_err(dev, "failed to register input device\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) ret = -EIO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) goto err_tcirq;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) err_tcirq:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) free_irq(ts.irq_tc, ts.input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) err_inputdev:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) input_free_device(ts.input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) err_iomap:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) iounmap(ts.io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) err_clk:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) clk_disable_unprepare(ts.clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) del_timer_sync(&touch_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) err_clk_get:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) clk_put(ts.clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) return ret;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) /**
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) * s3c2410ts_remove - device core removal entry point
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388) * @pdev: The device we are being removed from.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) * Free up our state ready to be removed.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) static int s3c2410ts_remove(struct platform_device *pdev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) free_irq(ts.irq_tc, ts.input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) del_timer_sync(&touch_timer);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397) clk_disable_unprepare(ts.clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) clk_put(ts.clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) input_unregister_device(ts.input);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) iounmap(ts.io);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) static int s3c2410ts_suspend(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) writel(TSC_SLEEP, ts.io + S3C2410_ADCTSC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410) disable_irq(ts.irq_tc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411) clk_disable(ts.clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) static int s3c2410ts_resume(struct device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) struct platform_device *pdev = to_platform_device(dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) struct s3c2410_ts_mach_info *info = dev_get_platdata(&pdev->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 421) clk_enable(ts.clock);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 422) enable_irq(ts.irq_tc);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 423)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 424) /* Initialise registers */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 425) if ((info->delay & 0xffff) > 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 426) writel(info->delay & 0xffff, ts.io + S3C2410_ADCDLY);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 427)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 428) writel(WAIT4INT | INT_DOWN, ts.io + S3C2410_ADCTSC);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 429)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 430) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 431) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 432)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 433) static const struct dev_pm_ops s3c_ts_pmops = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 434) .suspend = s3c2410ts_suspend,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 435) .resume = s3c2410ts_resume,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 436) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 437) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 438)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 439) static const struct platform_device_id s3cts_driver_ids[] = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 440) { "s3c2410-ts", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 441) { "s3c2440-ts", 0 },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 442) { "s3c64xx-ts", FEAT_PEN_IRQ },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 443) { }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 444) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 445) MODULE_DEVICE_TABLE(platform, s3cts_driver_ids);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 446)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 447) static struct platform_driver s3c_ts_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 448) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 449) .name = "samsung-ts",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 450) #ifdef CONFIG_PM
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 451) .pm = &s3c_ts_pmops,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 452) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 453) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 454) .id_table = s3cts_driver_ids,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 455) .probe = s3c2410ts_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 456) .remove = s3c2410ts_remove,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 457) };
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 458) module_platform_driver(s3c_ts_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 459)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 460) MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 461) "Ben Dooks <ben@simtec.co.uk>, "
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 462) "Simtec Electronics <linux@simtec.co.uk>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 463) MODULE_DESCRIPTION("S3C24XX Touchscreen driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 464) MODULE_LICENSE("GPL v2");
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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