^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) * Copyright (c) 1999-2001 Vojtech Pavlik
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) * 82C710 C&T mouse port chip driver for Linux
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) /*
^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/delay.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/module.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/ioport.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <linux/init.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <linux/interrupt.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <linux/serio.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include <linux/errno.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20) #include <linux/err.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) #include <linux/platform_device.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) #include <linux/slab.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) #include <asm/io.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) MODULE_AUTHOR("Vojtech Pavlik <vojtech@ucw.cz>");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27) MODULE_DESCRIPTION("82C710 C&T mouse port chip driver");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) MODULE_LICENSE("GPL");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) * ct82c710 interface
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) #define CT82C710_DEV_IDLE 0x01 /* Device Idle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) #define CT82C710_RX_FULL 0x02 /* Device Char received */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36) #define CT82C710_TX_IDLE 0x04 /* Device XMIT Idle */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) #define CT82C710_RESET 0x08 /* Device Reset */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) #define CT82C710_INTS_ON 0x10 /* Device Interrupt On */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) #define CT82C710_ERROR_FLAG 0x20 /* Device Error */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) #define CT82C710_CLEAR 0x40 /* Device Clear */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) #define CT82C710_ENABLE 0x80 /* Device Enable */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) #define CT82C710_IRQ 12
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) #define CT82C710_DATA ct82c710_iores.start
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) #define CT82C710_STATUS (ct82c710_iores.start + 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) static struct serio *ct82c710_port;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) static struct platform_device *ct82c710_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) static struct resource ct82c710_iores;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) * Interrupt handler for the 82C710 mouse port. A character
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) * is waiting in the 82C710.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) static irqreturn_t ct82c710_interrupt(int cpl, void *dev_id)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) return serio_interrupt(ct82c710_port, inb(CT82C710_DATA), 0);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) * Wait for device to send output char and flush any input char.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) static int ct82c170_wait(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68) int timeout = 60000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) while ((inb(CT82C710_STATUS) & (CT82C710_RX_FULL | CT82C710_TX_IDLE | CT82C710_DEV_IDLE))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) != (CT82C710_DEV_IDLE | CT82C710_TX_IDLE) && timeout) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) if (inb_p(CT82C710_STATUS) & CT82C710_RX_FULL) inb_p(CT82C710_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) udelay(1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) timeout--;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) return !timeout;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) static void ct82c710_close(struct serio *serio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) if (ct82c170_wait())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) printk(KERN_WARNING "ct82c710.c: Device busy in close()\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) outb_p(inb_p(CT82C710_STATUS) & ~(CT82C710_ENABLE | CT82C710_INTS_ON), CT82C710_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) if (ct82c170_wait())
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) printk(KERN_WARNING "ct82c710.c: Device busy in close()\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92) free_irq(CT82C710_IRQ, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95) static int ct82c710_open(struct serio *serio)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) unsigned char status;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) err = request_irq(CT82C710_IRQ, ct82c710_interrupt, 0, "ct82c710", NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) if (err)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104) status = inb_p(CT82C710_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) status |= (CT82C710_ENABLE | CT82C710_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107) outb_p(status, CT82C710_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) status &= ~(CT82C710_RESET);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110) outb_p(status, CT82C710_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) status |= CT82C710_INTS_ON;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) outb_p(status, CT82C710_STATUS); /* Enable interrupts */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) while (ct82c170_wait()) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) printk(KERN_ERR "ct82c710: Device busy in open()\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) status &= ~(CT82C710_ENABLE | CT82C710_INTS_ON);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) outb_p(status, CT82C710_STATUS);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) free_irq(CT82C710_IRQ, NULL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120) return -EBUSY;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) * Write to the 82C710 mouse device.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130) static int ct82c710_write(struct serio *port, unsigned char c)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) if (ct82c170_wait()) return -1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133) outb_p(c, CT82C710_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) * See if we can find a 82C710 device. Read mouse address.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) static int __init ct82c710_detect(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) outb_p(0x55, 0x2fa); /* Any value except 9, ff or 36 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) outb_p(0xaa, 0x3fa); /* Inverse of 55 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145) outb_p(0x36, 0x3fa); /* Address the chip */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) outb_p(0xe4, 0x3fa); /* 390/4; 390 = config address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) outb_p(0x1b, 0x2fa); /* Inverse of e4 */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148) outb_p(0x0f, 0x390); /* Write index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) if (inb_p(0x391) != 0xe4) /* Config address found? */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) return -ENODEV; /* No: no 82C710 here */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) outb_p(0x0d, 0x390); /* Write index */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) ct82c710_iores.start = inb_p(0x391) << 2; /* Get mouse I/O address */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) ct82c710_iores.end = ct82c710_iores.start + 1;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) ct82c710_iores.flags = IORESOURCE_IO;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) outb_p(0x0f, 0x390);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) outb_p(0x0f, 0x391); /* Close config mode */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162) static int ct82c710_probe(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) ct82c710_port = kzalloc(sizeof(struct serio), GFP_KERNEL);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) if (!ct82c710_port)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) return -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) ct82c710_port->id.type = SERIO_8042;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) ct82c710_port->dev.parent = &dev->dev;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170) ct82c710_port->open = ct82c710_open;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) ct82c710_port->close = ct82c710_close;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) ct82c710_port->write = ct82c710_write;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173) strlcpy(ct82c710_port->name, "C&T 82c710 mouse port",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) sizeof(ct82c710_port->name));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) snprintf(ct82c710_port->phys, sizeof(ct82c710_port->phys),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) "isa%16llx/serio0", (unsigned long long)CT82C710_DATA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) serio_register_port(ct82c710_port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) printk(KERN_INFO "serio: C&T 82c710 mouse port at %#llx irq %d\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) (unsigned long long)CT82C710_DATA, CT82C710_IRQ);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) static int ct82c710_remove(struct platform_device *dev)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) serio_unregister_port(ct82c710_port);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) static struct platform_driver ct82c710_driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) .driver = {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195) .name = "ct82c710",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) },
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) .probe = ct82c710_probe,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198) .remove = ct82c710_remove,
^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)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202) static int __init ct82c710_init(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) int error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) error = ct82c710_detect();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) error = platform_driver_register(&ct82c710_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) ct82c710_device = platform_device_alloc("ct82c710", -1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) if (!ct82c710_device) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216) error = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) goto err_unregister_driver;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) error = platform_device_add_resources(ct82c710_device, &ct82c710_iores, 1);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) goto err_free_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) error = platform_device_add(ct82c710_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) if (error)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) goto err_free_device;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230) err_free_device:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) platform_device_put(ct82c710_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) err_unregister_driver:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) platform_driver_unregister(&ct82c710_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234) return error;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) static void __exit ct82c710_exit(void)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239) platform_device_unregister(ct82c710_device);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) platform_driver_unregister(&ct82c710_driver);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) module_init(ct82c710_init);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) module_exit(ct82c710_exit);
Orange Pi5 kernel
Deprecated Linux kernel 5.10.110 for OrangePi 5/5B/5+ boards
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