+++ /dev/null
-/*
- * 1-wire busmaster driver for DS1WM and ASICs with embedded DS1WMs
- * such as HP iPAQs (including h5xxx, h2200, and devices with ASIC3
- * like hx4700).
- *
- * Copyright (c) 2004-2005, Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>
- * Copyright (c) 2004-2007, Matt Reimer <mreimer@vpop.net>
- *
- * Use consistent with the GNU GPL is permitted,
- * provided that this copyright notice is
- * preserved in its entirety in all copies and derived works.
- */
-
-#include <linux/module.h>
-#include <linux/interrupt.h>
-#include <linux/io.h>
-#include <linux/irq.h>
-#include <linux/pm.h>
-#include <linux/platform_device.h>
-#include <linux/err.h>
-#include <linux/delay.h>
-#include <linux/mfd/core.h>
-#include <linux/mfd/ds1wm.h>
-#include <linux/slab.h>
-
-#include <asm/io.h>
-
-#include <linux/w1.h>
-
-
-#define DS1WM_CMD 0x00 /* R/W 4 bits command */
-#define DS1WM_DATA 0x01 /* R/W 8 bits, transmit/receive buffer */
-#define DS1WM_INT 0x02 /* R/W interrupt status */
-#define DS1WM_INT_EN 0x03 /* R/W interrupt enable */
-#define DS1WM_CLKDIV 0x04 /* R/W 5 bits of divisor and pre-scale */
-#define DS1WM_CNTRL 0x05 /* R/W master control register (not used yet) */
-
-#define DS1WM_CMD_1W_RESET (1 << 0) /* force reset on 1-wire bus */
-#define DS1WM_CMD_SRA (1 << 1) /* enable Search ROM accelerator mode */
-#define DS1WM_CMD_DQ_OUTPUT (1 << 2) /* write only - forces bus low */
-#define DS1WM_CMD_DQ_INPUT (1 << 3) /* read only - reflects state of bus */
-#define DS1WM_CMD_RST (1 << 5) /* software reset */
-#define DS1WM_CMD_OD (1 << 7) /* overdrive */
-
-#define DS1WM_INT_PD (1 << 0) /* presence detect */
-#define DS1WM_INT_PDR (1 << 1) /* presence detect result */
-#define DS1WM_INT_TBE (1 << 2) /* tx buffer empty */
-#define DS1WM_INT_TSRE (1 << 3) /* tx shift register empty */
-#define DS1WM_INT_RBF (1 << 4) /* rx buffer full */
-#define DS1WM_INT_RSRF (1 << 5) /* rx shift register full */
-
-#define DS1WM_INTEN_EPD (1 << 0) /* enable presence detect int */
-#define DS1WM_INTEN_IAS (1 << 1) /* INTR active state */
-#define DS1WM_INTEN_ETBE (1 << 2) /* enable tx buffer empty int */
-#define DS1WM_INTEN_ETMT (1 << 3) /* enable tx shift register empty int */
-#define DS1WM_INTEN_ERBF (1 << 4) /* enable rx buffer full int */
-#define DS1WM_INTEN_ERSRF (1 << 5) /* enable rx shift register full int */
-#define DS1WM_INTEN_DQO (1 << 6) /* enable direct bus driving ops */
-
-#define DS1WM_INTEN_NOT_IAS (~DS1WM_INTEN_IAS) /* all but INTR active state */
-
-#define DS1WM_TIMEOUT (HZ * 5)
-
-static struct {
- unsigned long freq;
- unsigned long divisor;
-} freq[] = {
- { 1000000, 0x80 },
- { 2000000, 0x84 },
- { 3000000, 0x81 },
- { 4000000, 0x88 },
- { 5000000, 0x82 },
- { 6000000, 0x85 },
- { 7000000, 0x83 },
- { 8000000, 0x8c },
- { 10000000, 0x86 },
- { 12000000, 0x89 },
- { 14000000, 0x87 },
- { 16000000, 0x90 },
- { 20000000, 0x8a },
- { 24000000, 0x8d },
- { 28000000, 0x8b },
- { 32000000, 0x94 },
- { 40000000, 0x8e },
- { 48000000, 0x91 },
- { 56000000, 0x8f },
- { 64000000, 0x98 },
- { 80000000, 0x92 },
- { 96000000, 0x95 },
- { 112000000, 0x93 },
- { 128000000, 0x9c },
-/* you can continue this table, consult the OPERATION - CLOCK DIVISOR
- section of the ds1wm spec sheet. */
-};
-
-struct ds1wm_data {
- void __iomem *map;
- unsigned int bus_shift; /* # of shifts to calc register offsets */
- bool is_hw_big_endian;
- struct platform_device *pdev;
- const struct mfd_cell *cell;
- int irq;
- int slave_present;
- void *reset_complete;
- void *read_complete;
- void *write_complete;
- int read_error;
- /* last byte received */
- u8 read_byte;
- /* byte to write that makes all intr disabled, */
- /* considering active_state (IAS) (optimization) */
- u8 int_en_reg_none;
- unsigned int reset_recover_delay; /* see ds1wm.h */
-};
-
-static inline void ds1wm_write_register(struct ds1wm_data *ds1wm_data, u32 reg,
- u8 val)
-{
- if (ds1wm_data->is_hw_big_endian) {
- switch (ds1wm_data->bus_shift) {
- case 0:
- iowrite8(val, ds1wm_data->map + (reg << 0));
- break;
- case 1:
- iowrite16be((u16)val, ds1wm_data->map + (reg << 1));
- break;
- case 2:
- iowrite32be((u32)val, ds1wm_data->map + (reg << 2));
- break;
- }
- } else {
- switch (ds1wm_data->bus_shift) {
- case 0:
- iowrite8(val, ds1wm_data->map + (reg << 0));
- break;
- case 1:
- iowrite16((u16)val, ds1wm_data->map + (reg << 1));
- break;
- case 2:
- iowrite32((u32)val, ds1wm_data->map + (reg << 2));
- break;
- }
- }
-}
-
-static inline u8 ds1wm_read_register(struct ds1wm_data *ds1wm_data, u32 reg)
-{
- u32 val = 0;
-
- if (ds1wm_data->is_hw_big_endian) {
- switch (ds1wm_data->bus_shift) {
- case 0:
- val = ioread8(ds1wm_data->map + (reg << 0));
- break;
- case 1:
- val = ioread16be(ds1wm_data->map + (reg << 1));
- break;
- case 2:
- val = ioread32be(ds1wm_data->map + (reg << 2));
- break;
- }
- } else {
- switch (ds1wm_data->bus_shift) {
- case 0:
- val = ioread8(ds1wm_data->map + (reg << 0));
- break;
- case 1:
- val = ioread16(ds1wm_data->map + (reg << 1));
- break;
- case 2:
- val = ioread32(ds1wm_data->map + (reg << 2));
- break;
- }
- }
- dev_dbg(&ds1wm_data->pdev->dev,
- "ds1wm_read_register reg: %d, 32 bit val:%x\n", reg, val);
- return (u8)val;
-}
-
-
-static irqreturn_t ds1wm_isr(int isr, void *data)
-{
- struct ds1wm_data *ds1wm_data = data;
- u8 intr;
- u8 inten = ds1wm_read_register(ds1wm_data, DS1WM_INT_EN);
- /* if no bits are set in int enable register (except the IAS)
- than go no further, reading the regs below has side effects */
- if (!(inten & DS1WM_INTEN_NOT_IAS))
- return IRQ_NONE;
-
- ds1wm_write_register(ds1wm_data,
- DS1WM_INT_EN, ds1wm_data->int_en_reg_none);
-
- /* this read action clears the INTR and certain flags in ds1wm */
- intr = ds1wm_read_register(ds1wm_data, DS1WM_INT);
-
- ds1wm_data->slave_present = (intr & DS1WM_INT_PDR) ? 0 : 1;
-
- if ((intr & DS1WM_INT_TSRE) && ds1wm_data->write_complete) {
- inten &= ~DS1WM_INTEN_ETMT;
- complete(ds1wm_data->write_complete);
- }
- if (intr & DS1WM_INT_RBF) {
- /* this read clears the RBF flag */
- ds1wm_data->read_byte = ds1wm_read_register(ds1wm_data,
- DS1WM_DATA);
- inten &= ~DS1WM_INTEN_ERBF;
- if (ds1wm_data->read_complete)
- complete(ds1wm_data->read_complete);
- }
- if ((intr & DS1WM_INT_PD) && ds1wm_data->reset_complete) {
- inten &= ~DS1WM_INTEN_EPD;
- complete(ds1wm_data->reset_complete);
- }
-
- ds1wm_write_register(ds1wm_data, DS1WM_INT_EN, inten);
- return IRQ_HANDLED;
-}
-
-static int ds1wm_reset(struct ds1wm_data *ds1wm_data)
-{
- unsigned long timeleft;
- DECLARE_COMPLETION_ONSTACK(reset_done);
-
- ds1wm_data->reset_complete = &reset_done;
-
- /* enable Presence detect only */
- ds1wm_write_register(ds1wm_data, DS1WM_INT_EN, DS1WM_INTEN_EPD |
- ds1wm_data->int_en_reg_none);
-
- ds1wm_write_register(ds1wm_data, DS1WM_CMD, DS1WM_CMD_1W_RESET);
-
- timeleft = wait_for_completion_timeout(&reset_done, DS1WM_TIMEOUT);
- ds1wm_data->reset_complete = NULL;
- if (!timeleft) {
- dev_err(&ds1wm_data->pdev->dev, "reset failed, timed out\n");
- return 1;
- }
-
- if (!ds1wm_data->slave_present) {
- dev_dbg(&ds1wm_data->pdev->dev, "reset: no devices found\n");
- return 1;
- }
-
- if (ds1wm_data->reset_recover_delay)
- msleep(ds1wm_data->reset_recover_delay);
-
- return 0;
-}
-
-static int ds1wm_write(struct ds1wm_data *ds1wm_data, u8 data)
-{
- unsigned long timeleft;
- DECLARE_COMPLETION_ONSTACK(write_done);
- ds1wm_data->write_complete = &write_done;
-
- ds1wm_write_register(ds1wm_data, DS1WM_INT_EN,
- ds1wm_data->int_en_reg_none | DS1WM_INTEN_ETMT);
-
- ds1wm_write_register(ds1wm_data, DS1WM_DATA, data);
-
- timeleft = wait_for_completion_timeout(&write_done, DS1WM_TIMEOUT);
-
- ds1wm_data->write_complete = NULL;
- if (!timeleft) {
- dev_err(&ds1wm_data->pdev->dev, "write failed, timed out\n");
- return -ETIMEDOUT;
- }
-
- return 0;
-}
-
-static u8 ds1wm_read(struct ds1wm_data *ds1wm_data, unsigned char write_data)
-{
- unsigned long timeleft;
- u8 intEnable = DS1WM_INTEN_ERBF | ds1wm_data->int_en_reg_none;
- DECLARE_COMPLETION_ONSTACK(read_done);
-
- ds1wm_read_register(ds1wm_data, DS1WM_DATA);
-
- ds1wm_data->read_complete = &read_done;
- ds1wm_write_register(ds1wm_data, DS1WM_INT_EN, intEnable);
-
- ds1wm_write_register(ds1wm_data, DS1WM_DATA, write_data);
- timeleft = wait_for_completion_timeout(&read_done, DS1WM_TIMEOUT);
-
- ds1wm_data->read_complete = NULL;
- if (!timeleft) {
- dev_err(&ds1wm_data->pdev->dev, "read failed, timed out\n");
- ds1wm_data->read_error = -ETIMEDOUT;
- return 0xFF;
- }
- ds1wm_data->read_error = 0;
- return ds1wm_data->read_byte;
-}
-
-static int ds1wm_find_divisor(int gclk)
-{
- int i;
-
- for (i = ARRAY_SIZE(freq)-1; i >= 0; --i)
- if (gclk >= freq[i].freq)
- return freq[i].divisor;
-
- return 0;
-}
-
-static void ds1wm_up(struct ds1wm_data *ds1wm_data)
-{
- int divisor;
- struct device *dev = &ds1wm_data->pdev->dev;
- struct ds1wm_driver_data *plat = dev_get_platdata(dev);
-
- if (ds1wm_data->cell->enable)
- ds1wm_data->cell->enable(ds1wm_data->pdev);
-
- divisor = ds1wm_find_divisor(plat->clock_rate);
- dev_dbg(dev, "found divisor 0x%x for clock %d\n",
- divisor, plat->clock_rate);
- if (divisor == 0) {
- dev_err(dev, "no suitable divisor for %dHz clock\n",
- plat->clock_rate);
- return;
- }
- ds1wm_write_register(ds1wm_data, DS1WM_CLKDIV, divisor);
-
- /* Let the w1 clock stabilize. */
- msleep(1);
-
- ds1wm_reset(ds1wm_data);
-}
-
-static void ds1wm_down(struct ds1wm_data *ds1wm_data)
-{
- ds1wm_reset(ds1wm_data);
-
- /* Disable interrupts. */
- ds1wm_write_register(ds1wm_data, DS1WM_INT_EN,
- ds1wm_data->int_en_reg_none);
-
- if (ds1wm_data->cell->disable)
- ds1wm_data->cell->disable(ds1wm_data->pdev);
-}
-
-/* --------------------------------------------------------------------- */
-/* w1 methods */
-
-static u8 ds1wm_read_byte(void *data)
-{
- struct ds1wm_data *ds1wm_data = data;
-
- return ds1wm_read(ds1wm_data, 0xff);
-}
-
-static void ds1wm_write_byte(void *data, u8 byte)
-{
- struct ds1wm_data *ds1wm_data = data;
-
- ds1wm_write(ds1wm_data, byte);
-}
-
-static u8 ds1wm_reset_bus(void *data)
-{
- struct ds1wm_data *ds1wm_data = data;
-
- ds1wm_reset(ds1wm_data);
-
- return 0;
-}
-
-static void ds1wm_search(void *data, struct w1_master *master_dev,
- u8 search_type, w1_slave_found_callback slave_found)
-{
- struct ds1wm_data *ds1wm_data = data;
- int i;
- int ms_discrep_bit = -1;
- u64 r = 0; /* holds the progress of the search */
- u64 r_prime, d;
- unsigned slaves_found = 0;
- unsigned int pass = 0;
-
- dev_dbg(&ds1wm_data->pdev->dev, "search begin\n");
- while (true) {
- ++pass;
- if (pass > 100) {
- dev_dbg(&ds1wm_data->pdev->dev,
- "too many attempts (100), search aborted\n");
- return;
- }
-
- mutex_lock(&master_dev->bus_mutex);
- if (ds1wm_reset(ds1wm_data)) {
- mutex_unlock(&master_dev->bus_mutex);
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d reset error (or no slaves)\n", pass);
- break;
- }
-
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d r : %0#18llx writing SEARCH_ROM\n", pass, r);
- ds1wm_write(ds1wm_data, search_type);
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d entering ASM\n", pass);
- ds1wm_write_register(ds1wm_data, DS1WM_CMD, DS1WM_CMD_SRA);
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d beginning nibble loop\n", pass);
-
- r_prime = 0;
- d = 0;
- /* we work one nibble at a time */
- /* each nibble is interleaved to form a byte */
- for (i = 0; i < 16; i++) {
-
- unsigned char resp, _r, _r_prime, _d;
-
- _r = (r >> (4*i)) & 0xf;
- _r = ((_r & 0x1) << 1) |
- ((_r & 0x2) << 2) |
- ((_r & 0x4) << 3) |
- ((_r & 0x8) << 4);
-
- /* writes _r, then reads back: */
- resp = ds1wm_read(ds1wm_data, _r);
-
- if (ds1wm_data->read_error) {
- dev_err(&ds1wm_data->pdev->dev,
- "pass: %d nibble: %d read error\n", pass, i);
- break;
- }
-
- _r_prime = ((resp & 0x02) >> 1) |
- ((resp & 0x08) >> 2) |
- ((resp & 0x20) >> 3) |
- ((resp & 0x80) >> 4);
-
- _d = ((resp & 0x01) >> 0) |
- ((resp & 0x04) >> 1) |
- ((resp & 0x10) >> 2) |
- ((resp & 0x40) >> 3);
-
- r_prime |= (unsigned long long) _r_prime << (i * 4);
- d |= (unsigned long long) _d << (i * 4);
-
- }
- if (ds1wm_data->read_error) {
- mutex_unlock(&master_dev->bus_mutex);
- dev_err(&ds1wm_data->pdev->dev,
- "pass: %d read error, retrying\n", pass);
- break;
- }
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d r\': %0#18llx d:%0#18llx\n",
- pass, r_prime, d);
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d nibble loop complete, exiting ASM\n", pass);
- ds1wm_write_register(ds1wm_data, DS1WM_CMD, ~DS1WM_CMD_SRA);
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d resetting bus\n", pass);
- ds1wm_reset(ds1wm_data);
- mutex_unlock(&master_dev->bus_mutex);
- if ((r_prime & ((u64)1 << 63)) && (d & ((u64)1 << 63))) {
- dev_err(&ds1wm_data->pdev->dev,
- "pass: %d bus error, retrying\n", pass);
- continue; /* start over */
- }
-
-
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d found %0#18llx\n", pass, r_prime);
- slave_found(master_dev, r_prime);
- ++slaves_found;
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d complete, preparing next pass\n", pass);
-
- /* any discrepency found which we already choose the
- '1' branch is now is now irrelevant we reveal the
- next branch with this: */
- d &= ~r;
- /* find last bit set, i.e. the most signif. bit set */
- ms_discrep_bit = fls64(d) - 1;
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d new d:%0#18llx MS discrep bit:%d\n",
- pass, d, ms_discrep_bit);
-
- /* prev_ms_discrep_bit = ms_discrep_bit;
- prepare for next ROM search: */
- if (ms_discrep_bit == -1)
- break;
-
- r = (r & ~(~0ull << (ms_discrep_bit))) | 1 << ms_discrep_bit;
- } /* end while true */
- dev_dbg(&ds1wm_data->pdev->dev,
- "pass: %d total: %d search done ms d bit pos: %d\n", pass,
- slaves_found, ms_discrep_bit);
-}
-
-/* --------------------------------------------------------------------- */
-
-static struct w1_bus_master ds1wm_master = {
- .read_byte = ds1wm_read_byte,
- .write_byte = ds1wm_write_byte,
- .reset_bus = ds1wm_reset_bus,
- .search = ds1wm_search,
-};
-
-static int ds1wm_probe(struct platform_device *pdev)
-{
- struct ds1wm_data *ds1wm_data;
- struct ds1wm_driver_data *plat;
- struct resource *res;
- int ret;
- u8 inten;
-
- if (!pdev)
- return -ENODEV;
-
- ds1wm_data = devm_kzalloc(&pdev->dev, sizeof(*ds1wm_data), GFP_KERNEL);
- if (!ds1wm_data)
- return -ENOMEM;
-
- platform_set_drvdata(pdev, ds1wm_data);
-
- res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
- if (!res)
- return -ENXIO;
- ds1wm_data->map = devm_ioremap(&pdev->dev, res->start,
- resource_size(res));
- if (!ds1wm_data->map)
- return -ENOMEM;
-
- ds1wm_data->pdev = pdev;
- ds1wm_data->cell = mfd_get_cell(pdev);
- if (!ds1wm_data->cell)
- return -ENODEV;
- plat = dev_get_platdata(&pdev->dev);
- if (!plat)
- return -ENODEV;
-
- /* how many bits to shift register number to get register offset */
- if (plat->bus_shift > 2) {
- dev_err(&ds1wm_data->pdev->dev,
- "illegal bus shift %d, not written",
- ds1wm_data->bus_shift);
- return -EINVAL;
- }
-
- ds1wm_data->bus_shift = plat->bus_shift;
- /* make sure resource has space for 8 registers */
- if ((8 << ds1wm_data->bus_shift) > resource_size(res)) {
- dev_err(&ds1wm_data->pdev->dev,
- "memory resource size %d to small, should be %d\n",
- (int)resource_size(res),
- 8 << ds1wm_data->bus_shift);
- return -EINVAL;
- }
-
- ds1wm_data->is_hw_big_endian = plat->is_hw_big_endian;
-
- res = platform_get_resource(pdev, IORESOURCE_IRQ, 0);
- if (!res)
- return -ENXIO;
- ds1wm_data->irq = res->start;
- ds1wm_data->int_en_reg_none = (plat->active_high ? DS1WM_INTEN_IAS : 0);
- ds1wm_data->reset_recover_delay = plat->reset_recover_delay;
-
- /* Mask interrupts, set IAS before claiming interrupt */
- inten = ds1wm_read_register(ds1wm_data, DS1WM_INT_EN);
- ds1wm_write_register(ds1wm_data,
- DS1WM_INT_EN, ds1wm_data->int_en_reg_none);
-
- if (res->flags & IORESOURCE_IRQ_HIGHEDGE)
- irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_RISING);
- if (res->flags & IORESOURCE_IRQ_LOWEDGE)
- irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_EDGE_FALLING);
- if (res->flags & IORESOURCE_IRQ_HIGHLEVEL)
- irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_LEVEL_HIGH);
- if (res->flags & IORESOURCE_IRQ_LOWLEVEL)
- irq_set_irq_type(ds1wm_data->irq, IRQ_TYPE_LEVEL_LOW);
-
- ret = devm_request_irq(&pdev->dev, ds1wm_data->irq, ds1wm_isr,
- IRQF_SHARED, "ds1wm", ds1wm_data);
- if (ret) {
- dev_err(&ds1wm_data->pdev->dev,
- "devm_request_irq %d failed with errno %d\n",
- ds1wm_data->irq,
- ret);
-
- return ret;
- }
-
- ds1wm_up(ds1wm_data);
-
- ds1wm_master.data = (void *)ds1wm_data;
-
- ret = w1_add_master_device(&ds1wm_master);
- if (ret)
- goto err;
-
- dev_dbg(&ds1wm_data->pdev->dev,
- "ds1wm: probe successful, IAS: %d, rec.delay: %d, clockrate: %d, bus-shift: %d, is Hw Big Endian: %d\n",
- plat->active_high,
- plat->reset_recover_delay,
- plat->clock_rate,
- ds1wm_data->bus_shift,
- ds1wm_data->is_hw_big_endian);
- return 0;
-
-err:
- ds1wm_down(ds1wm_data);
-
- return ret;
-}
-
-#ifdef CONFIG_PM
-static int ds1wm_suspend(struct platform_device *pdev, pm_message_t state)
-{
- struct ds1wm_data *ds1wm_data = platform_get_drvdata(pdev);
-
- ds1wm_down(ds1wm_data);
-
- return 0;
-}
-
-static int ds1wm_resume(struct platform_device *pdev)
-{
- struct ds1wm_data *ds1wm_data = platform_get_drvdata(pdev);
-
- ds1wm_up(ds1wm_data);
-
- return 0;
-}
-#else
-#define ds1wm_suspend NULL
-#define ds1wm_resume NULL
-#endif
-
-static int ds1wm_remove(struct platform_device *pdev)
-{
- struct ds1wm_data *ds1wm_data = platform_get_drvdata(pdev);
-
- w1_remove_master_device(&ds1wm_master);
- ds1wm_down(ds1wm_data);
-
- return 0;
-}
-
-static struct platform_driver ds1wm_driver = {
- .driver = {
- .name = "ds1wm",
- },
- .probe = ds1wm_probe,
- .remove = ds1wm_remove,
- .suspend = ds1wm_suspend,
- .resume = ds1wm_resume
-};
-
-static int __init ds1wm_init(void)
-{
- pr_info("DS1WM w1 busmaster driver - (c) 2004 Szabolcs Gyurko\n");
- return platform_driver_register(&ds1wm_driver);
-}
-
-static void __exit ds1wm_exit(void)
-{
- platform_driver_unregister(&ds1wm_driver);
-}
-
-module_init(ds1wm_init);
-module_exit(ds1wm_exit);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Szabolcs Gyurko <szabolcs.gyurko@tlt.hu>, "
- "Matt Reimer <mreimer@vpop.net>,"
- "Jean-Francois Dagenais <dagenaisj@sonatest.com>");
-MODULE_DESCRIPTION("DS1WM w1 busmaster driver");
projects / platform / kernel / linux-rpi.git / commitdiff