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lis3: remove the references to the global variable in core driver
[ilkka.koskinen@nokia.com: fix arg to lis3->read()] Signed-off-by: Ilkka Koskinen <ilkka.koskinen@nokia.com> Signed-off-by: Éric Piel <eric.piel@tremplin-utc.net> Cc: Matthew Garrett <mjg@redhat.com> Cc: Witold Pilat <witold.pilat@gmail.com> Cc: Lyall Pearce <lyall.pearce@hp.com> Cc: Malte Starostik <m-starostik@versanet.de> Cc: Thadeu Lima de Souza Cascardo <cascardo@holoscopio.com> Cc: Christian Lamparter <chunkeey@googlemail.com> Subject: lis3-remove-the-references-to-the-global-variable-in-core-driver-fix Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Éric Piel
Linus Torvalds
parent
e1e5687d75
commit
895c156c04
@ -163,7 +163,7 @@ static void lis3lv02d_get_xyz(struct lis3lv02d *lis3, int *x, int *y, int *z)
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int i;
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if (lis3->blkread) {
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if (lis3_dev.whoami == WAI_12B) {
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if (lis3->whoami == WAI_12B) {
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u16 data[3];
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lis3->blkread(lis3, OUTX_L, 6, (u8 *)data);
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for (i = 0; i < 3; i++)
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@ -195,20 +195,20 @@ static int lis3_8_rates[2] = {100, 400};
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static int lis3_3dc_rates[16] = {0, 1, 10, 25, 50, 100, 200, 400, 1600, 5000};
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/* ODR is Output Data Rate */
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static int lis3lv02d_get_odr(void)
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static int lis3lv02d_get_odr(struct lis3lv02d *lis3)
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{
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u8 ctrl;
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int shift;
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lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl);
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ctrl &= lis3_dev.odr_mask;
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shift = ffs(lis3_dev.odr_mask) - 1;
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return lis3_dev.odrs[(ctrl >> shift)];
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lis3->read(lis3, CTRL_REG1, &ctrl);
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ctrl &= lis3->odr_mask;
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shift = ffs(lis3->odr_mask) - 1;
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return lis3->odrs[(ctrl >> shift)];
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}
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static int lis3lv02d_get_pwron_wait(struct lis3lv02d *lis3)
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{
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int div = lis3lv02d_get_odr();
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int div = lis3lv02d_get_odr(lis3);
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if (WARN_ONCE(div == 0, "device returned spurious data"))
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return -ENXIO;
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@ -218,7 +218,7 @@ static int lis3lv02d_get_pwron_wait(struct lis3lv02d *lis3)
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return 0;
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}
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static int lis3lv02d_set_odr(int rate)
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static int lis3lv02d_set_odr(struct lis3lv02d *lis3, int rate)
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{
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u8 ctrl;
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int i, len, shift;
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@ -226,14 +226,14 @@ static int lis3lv02d_set_odr(int rate)
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if (!rate)
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return -EINVAL;
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lis3_dev.read(&lis3_dev, CTRL_REG1, &ctrl);
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ctrl &= ~lis3_dev.odr_mask;
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len = 1 << hweight_long(lis3_dev.odr_mask); /* # of possible values */
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shift = ffs(lis3_dev.odr_mask) - 1;
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lis3->read(lis3, CTRL_REG1, &ctrl);
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ctrl &= ~lis3->odr_mask;
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len = 1 << hweight_long(lis3->odr_mask); /* # of possible values */
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shift = ffs(lis3->odr_mask) - 1;
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for (i = 0; i < len; i++)
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if (lis3_dev.odrs[i] == rate) {
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lis3_dev.write(&lis3_dev, CTRL_REG1,
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if (lis3->odrs[i] == rate) {
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lis3->write(lis3, CTRL_REG1,
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ctrl | (i << shift));
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return 0;
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}
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@ -252,12 +252,12 @@ static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3])
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mutex_lock(&lis3->mutex);
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irq_cfg = lis3->irq_cfg;
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if (lis3_dev.whoami == WAI_8B) {
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if (lis3->whoami == WAI_8B) {
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lis3->data_ready_count[IRQ_LINE0] = 0;
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lis3->data_ready_count[IRQ_LINE1] = 0;
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/* Change interrupt cfg to data ready for selftest */
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atomic_inc(&lis3_dev.wake_thread);
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atomic_inc(&lis3->wake_thread);
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lis3->irq_cfg = LIS3_IRQ1_DATA_READY | LIS3_IRQ2_DATA_READY;
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lis3->read(lis3, CTRL_REG3, &ctrl_reg_data);
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lis3->write(lis3, CTRL_REG3, (ctrl_reg_data &
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@ -265,12 +265,12 @@ static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3])
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(LIS3_IRQ1_DATA_READY | LIS3_IRQ2_DATA_READY));
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}
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if (lis3_dev.whoami == WAI_3DC) {
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if (lis3->whoami == WAI_3DC) {
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ctlreg = CTRL_REG4;
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selftest = CTRL4_ST0;
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} else {
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ctlreg = CTRL_REG1;
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if (lis3_dev.whoami == WAI_12B)
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if (lis3->whoami == WAI_12B)
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selftest = CTRL1_ST;
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else
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selftest = CTRL1_STP;
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@ -299,9 +299,9 @@ static int lis3lv02d_selftest(struct lis3lv02d *lis3, s16 results[3])
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ret = 0;
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if (lis3_dev.whoami == WAI_8B) {
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if (lis3->whoami == WAI_8B) {
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/* Restore original interrupt configuration */
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atomic_dec(&lis3_dev.wake_thread);
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atomic_dec(&lis3->wake_thread);
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lis3->write(lis3, CTRL_REG3, ctrl_reg_data);
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lis3->irq_cfg = irq_cfg;
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@ -415,24 +415,27 @@ EXPORT_SYMBOL_GPL(lis3lv02d_poweron);
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static void lis3lv02d_joystick_poll(struct input_polled_dev *pidev)
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{
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struct lis3lv02d *lis3 = pidev->private;
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int x, y, z;
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mutex_lock(&lis3_dev.mutex);
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lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z);
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mutex_lock(&lis3->mutex);
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lis3lv02d_get_xyz(lis3, &x, &y, &z);
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input_report_abs(pidev->input, ABS_X, x);
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input_report_abs(pidev->input, ABS_Y, y);
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input_report_abs(pidev->input, ABS_Z, z);
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input_sync(pidev->input);
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mutex_unlock(&lis3_dev.mutex);
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mutex_unlock(&lis3->mutex);
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}
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static void lis3lv02d_joystick_open(struct input_polled_dev *pidev)
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{
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if (lis3_dev.pm_dev)
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pm_runtime_get_sync(lis3_dev.pm_dev);
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struct lis3lv02d *lis3 = pidev->private;
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if (lis3_dev.pdata && lis3_dev.whoami == WAI_8B && lis3_dev.idev)
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atomic_set(&lis3_dev.wake_thread, 1);
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if (lis3->pm_dev)
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pm_runtime_get_sync(lis3->pm_dev);
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if (lis3->pdata && lis3->whoami == WAI_8B && lis3->idev)
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atomic_set(&lis3->wake_thread, 1);
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/*
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* Update coordinates for the case where poll interval is 0 and
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* the chip in running purely under interrupt control
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@ -442,14 +445,18 @@ static void lis3lv02d_joystick_open(struct input_polled_dev *pidev)
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static void lis3lv02d_joystick_close(struct input_polled_dev *pidev)
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{
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atomic_set(&lis3_dev.wake_thread, 0);
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if (lis3_dev.pm_dev)
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pm_runtime_put(lis3_dev.pm_dev);
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struct lis3lv02d *lis3 = pidev->private;
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atomic_set(&lis3->wake_thread, 0);
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if (lis3->pm_dev)
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pm_runtime_put(lis3->pm_dev);
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}
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static irqreturn_t lis302dl_interrupt(int irq, void *dummy)
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static irqreturn_t lis302dl_interrupt(int irq, void *data)
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{
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if (!test_bit(0, &lis3_dev.misc_opened))
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struct lis3lv02d *lis3 = data;
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if (!test_bit(0, &lis3->misc_opened))
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goto out;
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/*
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@ -457,12 +464,12 @@ static irqreturn_t lis302dl_interrupt(int irq, void *dummy)
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* the lid is closed. This leads to interrupts as soon as a little move
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* is done.
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*/
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atomic_inc(&lis3_dev.count);
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atomic_inc(&lis3->count);
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wake_up_interruptible(&lis3_dev.misc_wait);
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kill_fasync(&lis3_dev.async_queue, SIGIO, POLL_IN);
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wake_up_interruptible(&lis3->misc_wait);
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kill_fasync(&lis3->async_queue, SIGIO, POLL_IN);
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out:
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if (atomic_read(&lis3_dev.wake_thread))
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if (atomic_read(&lis3->wake_thread))
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return IRQ_WAKE_THREAD;
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return IRQ_HANDLED;
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}
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@ -534,28 +541,37 @@ static irqreturn_t lis302dl_interrupt_thread2_8b(int irq, void *data)
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static int lis3lv02d_misc_open(struct inode *inode, struct file *file)
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{
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if (test_and_set_bit(0, &lis3_dev.misc_opened))
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struct lis3lv02d *lis3 = container_of(file->private_data,
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struct lis3lv02d, miscdev);
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if (test_and_set_bit(0, &lis3->misc_opened))
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return -EBUSY; /* already open */
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if (lis3_dev.pm_dev)
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pm_runtime_get_sync(lis3_dev.pm_dev);
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if (lis3->pm_dev)
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pm_runtime_get_sync(lis3->pm_dev);
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atomic_set(&lis3_dev.count, 0);
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atomic_set(&lis3->count, 0);
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return 0;
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}
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static int lis3lv02d_misc_release(struct inode *inode, struct file *file)
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{
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fasync_helper(-1, file, 0, &lis3_dev.async_queue);
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clear_bit(0, &lis3_dev.misc_opened); /* release the device */
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if (lis3_dev.pm_dev)
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pm_runtime_put(lis3_dev.pm_dev);
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struct lis3lv02d *lis3 = container_of(file->private_data,
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struct lis3lv02d, miscdev);
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fasync_helper(-1, file, 0, &lis3->async_queue);
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clear_bit(0, &lis3->misc_opened); /* release the device */
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if (lis3->pm_dev)
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pm_runtime_put(lis3->pm_dev);
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return 0;
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}
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static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
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size_t count, loff_t *pos)
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{
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struct lis3lv02d *lis3 = container_of(file->private_data,
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struct lis3lv02d, miscdev);
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DECLARE_WAITQUEUE(wait, current);
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u32 data;
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unsigned char byte_data;
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@ -564,10 +580,10 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
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if (count < 1)
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return -EINVAL;
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add_wait_queue(&lis3_dev.misc_wait, &wait);
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add_wait_queue(&lis3->misc_wait, &wait);
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while (true) {
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set_current_state(TASK_INTERRUPTIBLE);
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data = atomic_xchg(&lis3_dev.count, 0);
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data = atomic_xchg(&lis3->count, 0);
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if (data)
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break;
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@ -597,22 +613,28 @@ static ssize_t lis3lv02d_misc_read(struct file *file, char __user *buf,
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out:
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__set_current_state(TASK_RUNNING);
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remove_wait_queue(&lis3_dev.misc_wait, &wait);
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remove_wait_queue(&lis3->misc_wait, &wait);
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return retval;
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}
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static unsigned int lis3lv02d_misc_poll(struct file *file, poll_table *wait)
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{
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poll_wait(file, &lis3_dev.misc_wait, wait);
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if (atomic_read(&lis3_dev.count))
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struct lis3lv02d *lis3 = container_of(file->private_data,
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struct lis3lv02d, miscdev);
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poll_wait(file, &lis3->misc_wait, wait);
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if (atomic_read(&lis3->count))
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return POLLIN | POLLRDNORM;
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return 0;
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}
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static int lis3lv02d_misc_fasync(int fd, struct file *file, int on)
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{
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return fasync_helper(fd, file, on, &lis3_dev.async_queue);
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struct lis3lv02d *lis3 = container_of(file->private_data,
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struct lis3lv02d, miscdev);
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return fasync_helper(fd, file, on, &lis3->async_queue);
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}
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static const struct file_operations lis3lv02d_misc_fops = {
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@ -625,12 +647,6 @@ static const struct file_operations lis3lv02d_misc_fops = {
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.fasync = lis3lv02d_misc_fasync,
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};
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static struct miscdevice lis3lv02d_misc_device = {
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.minor = MISC_DYNAMIC_MINOR,
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.name = "freefall",
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.fops = &lis3lv02d_misc_fops,
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};
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int lis3lv02d_joystick_enable(struct lis3lv02d *lis3)
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{
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struct input_dev *input_dev;
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@ -638,51 +654,52 @@ int lis3lv02d_joystick_enable(struct lis3lv02d *lis3)
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int max_val, fuzz, flat;
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int btns[] = {BTN_X, BTN_Y, BTN_Z};
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if (lis3_dev.idev)
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if (lis3->idev)
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return -EINVAL;
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lis3_dev.idev = input_allocate_polled_device();
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if (!lis3_dev.idev)
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lis3->idev = input_allocate_polled_device();
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if (!lis3->idev)
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return -ENOMEM;
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lis3_dev.idev->poll = lis3lv02d_joystick_poll;
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lis3_dev.idev->open = lis3lv02d_joystick_open;
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lis3_dev.idev->close = lis3lv02d_joystick_close;
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lis3_dev.idev->poll_interval = MDPS_POLL_INTERVAL;
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lis3_dev.idev->poll_interval_min = MDPS_POLL_MIN;
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lis3_dev.idev->poll_interval_max = MDPS_POLL_MAX;
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input_dev = lis3_dev.idev->input;
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lis3->idev->poll = lis3lv02d_joystick_poll;
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lis3->idev->open = lis3lv02d_joystick_open;
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lis3->idev->close = lis3lv02d_joystick_close;
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lis3->idev->poll_interval = MDPS_POLL_INTERVAL;
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lis3->idev->poll_interval_min = MDPS_POLL_MIN;
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lis3->idev->poll_interval_max = MDPS_POLL_MAX;
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lis3->idev->private = lis3;
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input_dev = lis3->idev->input;
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input_dev->name = "ST LIS3LV02DL Accelerometer";
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input_dev->phys = DRIVER_NAME "/input0";
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input_dev->id.bustype = BUS_HOST;
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input_dev->id.vendor = 0;
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input_dev->dev.parent = &lis3_dev.pdev->dev;
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input_dev->dev.parent = &lis3->pdev->dev;
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set_bit(EV_ABS, input_dev->evbit);
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max_val = (lis3_dev.mdps_max_val * lis3_dev.scale) / LIS3_ACCURACY;
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if (lis3_dev.whoami == WAI_12B) {
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max_val = (lis3->mdps_max_val * lis3->scale) / LIS3_ACCURACY;
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if (lis3->whoami == WAI_12B) {
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fuzz = LIS3_DEFAULT_FUZZ_12B;
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flat = LIS3_DEFAULT_FLAT_12B;
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} else {
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fuzz = LIS3_DEFAULT_FUZZ_8B;
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flat = LIS3_DEFAULT_FLAT_8B;
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}
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fuzz = (fuzz * lis3_dev.scale) / LIS3_ACCURACY;
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flat = (flat * lis3_dev.scale) / LIS3_ACCURACY;
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fuzz = (fuzz * lis3->scale) / LIS3_ACCURACY;
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flat = (flat * lis3->scale) / LIS3_ACCURACY;
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input_set_abs_params(input_dev, ABS_X, -max_val, max_val, fuzz, flat);
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input_set_abs_params(input_dev, ABS_Y, -max_val, max_val, fuzz, flat);
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input_set_abs_params(input_dev, ABS_Z, -max_val, max_val, fuzz, flat);
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lis3_dev.mapped_btns[0] = lis3lv02d_get_axis(abs(lis3_dev.ac.x), btns);
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lis3_dev.mapped_btns[1] = lis3lv02d_get_axis(abs(lis3_dev.ac.y), btns);
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lis3_dev.mapped_btns[2] = lis3lv02d_get_axis(abs(lis3_dev.ac.z), btns);
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lis3->mapped_btns[0] = lis3lv02d_get_axis(abs(lis3->ac.x), btns);
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lis3->mapped_btns[1] = lis3lv02d_get_axis(abs(lis3->ac.y), btns);
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lis3->mapped_btns[2] = lis3lv02d_get_axis(abs(lis3->ac.z), btns);
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err = input_register_polled_device(lis3_dev.idev);
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err = input_register_polled_device(lis3->idev);
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if (err) {
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input_free_polled_device(lis3_dev.idev);
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lis3_dev.idev = NULL;
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input_free_polled_device(lis3->idev);
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lis3->idev = NULL;
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}
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return err;
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@ -691,19 +708,19 @@ EXPORT_SYMBOL_GPL(lis3lv02d_joystick_enable);
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void lis3lv02d_joystick_disable(struct lis3lv02d *lis3)
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{
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if (lis3_dev.irq)
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free_irq(lis3_dev.irq, &lis3_dev);
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if (lis3_dev.pdata && lis3_dev.pdata->irq2)
|
||||
free_irq(lis3_dev.pdata->irq2, &lis3_dev);
|
||||
if (lis3->irq)
|
||||
free_irq(lis3->irq, lis3);
|
||||
if (lis3->pdata && lis3->pdata->irq2)
|
||||
free_irq(lis3->pdata->irq2, lis3);
|
||||
|
||||
if (!lis3_dev.idev)
|
||||
if (!lis3->idev)
|
||||
return;
|
||||
|
||||
if (lis3_dev.irq)
|
||||
misc_deregister(&lis3lv02d_misc_device);
|
||||
input_unregister_polled_device(lis3_dev.idev);
|
||||
input_free_polled_device(lis3_dev.idev);
|
||||
lis3_dev.idev = NULL;
|
||||
if (lis3->irq)
|
||||
misc_deregister(&lis3->miscdev);
|
||||
input_unregister_polled_device(lis3->idev);
|
||||
input_free_polled_device(lis3->idev);
|
||||
lis3->idev = NULL;
|
||||
}
|
||||
EXPORT_SYMBOL_GPL(lis3lv02d_joystick_disable);
|
||||
|
||||
@ -728,6 +745,7 @@ static void lis3lv02d_sysfs_poweron(struct lis3lv02d *lis3)
|
||||
static ssize_t lis3lv02d_selftest_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct lis3lv02d *lis3 = dev_get_drvdata(dev);
|
||||
s16 values[3];
|
||||
|
||||
static const char ok[] = "OK";
|
||||
@ -735,8 +753,8 @@ static ssize_t lis3lv02d_selftest_show(struct device *dev,
|
||||
static const char irq[] = "FAIL_IRQ";
|
||||
const char *res;
|
||||
|
||||
lis3lv02d_sysfs_poweron(&lis3_dev);
|
||||
switch (lis3lv02d_selftest(&lis3_dev, values)) {
|
||||
lis3lv02d_sysfs_poweron(lis3);
|
||||
switch (lis3lv02d_selftest(lis3, values)) {
|
||||
case SELFTEST_FAIL:
|
||||
res = fail;
|
||||
break;
|
||||
@ -755,33 +773,37 @@ static ssize_t lis3lv02d_selftest_show(struct device *dev,
|
||||
static ssize_t lis3lv02d_position_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
struct lis3lv02d *lis3 = dev_get_drvdata(dev);
|
||||
int x, y, z;
|
||||
|
||||
lis3lv02d_sysfs_poweron(&lis3_dev);
|
||||
mutex_lock(&lis3_dev.mutex);
|
||||
lis3lv02d_get_xyz(&lis3_dev, &x, &y, &z);
|
||||
mutex_unlock(&lis3_dev.mutex);
|
||||
lis3lv02d_sysfs_poweron(lis3);
|
||||
mutex_lock(&lis3->mutex);
|
||||
lis3lv02d_get_xyz(lis3, &x, &y, &z);
|
||||
mutex_unlock(&lis3->mutex);
|
||||
return sprintf(buf, "(%d,%d,%d)\n", x, y, z);
|
||||
}
|
||||
|
||||
static ssize_t lis3lv02d_rate_show(struct device *dev,
|
||||
struct device_attribute *attr, char *buf)
|
||||
{
|
||||
lis3lv02d_sysfs_poweron(&lis3_dev);
|
||||
return sprintf(buf, "%d\n", lis3lv02d_get_odr());
|
||||
struct lis3lv02d *lis3 = dev_get_drvdata(dev);
|
||||
|
||||
lis3lv02d_sysfs_poweron(lis3);
|
||||
return sprintf(buf, "%d\n", lis3lv02d_get_odr(lis3));
|
||||
}
|
||||
|
||||
static ssize_t lis3lv02d_rate_set(struct device *dev,
|
||||
struct device_attribute *attr, const char *buf,
|
||||
size_t count)
|
||||
{
|
||||
struct lis3lv02d *lis3 = dev_get_drvdata(dev);
|
||||
unsigned long rate;
|
||||
|
||||
if (strict_strtoul(buf, 0, &rate))
|
||||
return -EINVAL;
|
||||
|
||||
lis3lv02d_sysfs_poweron(&lis3_dev);
|
||||
if (lis3lv02d_set_odr(rate))
|
||||
lis3lv02d_sysfs_poweron(lis3);
|
||||
if (lis3lv02d_set_odr(lis3, rate))
|
||||
return -EINVAL;
|
||||
|
||||
return count;
|
||||
@ -810,6 +832,7 @@ static int lis3lv02d_add_fs(struct lis3lv02d *lis3)
|
||||
if (IS_ERR(lis3->pdev))
|
||||
return PTR_ERR(lis3->pdev);
|
||||
|
||||
platform_set_drvdata(lis3->pdev, lis3);
|
||||
return sysfs_create_group(&lis3->pdev->dev.kobj, &lis3lv02d_attribute_group);
|
||||
}
|
||||
|
||||
@ -823,7 +846,7 @@ int lis3lv02d_remove_fs(struct lis3lv02d *lis3)
|
||||
|
||||
/* SYSFS may have left chip running. Turn off if necessary */
|
||||
if (!pm_runtime_suspended(lis3->pm_dev))
|
||||
lis3lv02d_poweroff(&lis3_dev);
|
||||
lis3lv02d_poweroff(lis3);
|
||||
|
||||
pm_runtime_disable(lis3->pm_dev);
|
||||
pm_runtime_set_suspended(lis3->pm_dev);
|
||||
@ -850,7 +873,7 @@ static void lis3lv02d_8b_configure(struct lis3lv02d *lis3,
|
||||
(p->click_thresh_y << 4));
|
||||
|
||||
if (lis3->idev) {
|
||||
struct input_dev *input_dev = lis3_dev.idev->input;
|
||||
struct input_dev *input_dev = lis3->idev->input;
|
||||
input_set_capability(input_dev, EV_KEY, BTN_X);
|
||||
input_set_capability(input_dev, EV_KEY, BTN_Y);
|
||||
input_set_capability(input_dev, EV_KEY, BTN_Z);
|
||||
@ -881,7 +904,7 @@ static void lis3lv02d_8b_configure(struct lis3lv02d *lis3,
|
||||
lis302dl_interrupt_thread2_8b,
|
||||
IRQF_TRIGGER_RISING | IRQF_ONESHOT |
|
||||
(p->irq_flags2 & IRQF_TRIGGER_MASK),
|
||||
DRIVER_NAME, &lis3_dev);
|
||||
DRIVER_NAME, lis3);
|
||||
if (err < 0)
|
||||
pr_err("No second IRQ. Limited functionality\n");
|
||||
}
|
||||
@ -977,7 +1000,7 @@ int lis3lv02d_init_device(struct lis3lv02d *lis3)
|
||||
lis3->write(lis3, CTRL_REG3, p->irq_cfg);
|
||||
|
||||
if (p->default_rate)
|
||||
lis3lv02d_set_odr(p->default_rate);
|
||||
lis3lv02d_set_odr(lis3, p->default_rate);
|
||||
}
|
||||
|
||||
/* bail if we did not get an IRQ from the bus layer */
|
||||
@ -1006,14 +1029,18 @@ int lis3lv02d_init_device(struct lis3lv02d *lis3)
|
||||
thread_fn,
|
||||
IRQF_TRIGGER_RISING | IRQF_ONESHOT |
|
||||
irq_flags,
|
||||
DRIVER_NAME, &lis3_dev);
|
||||
DRIVER_NAME, lis3);
|
||||
|
||||
if (err < 0) {
|
||||
pr_err("Cannot get IRQ\n");
|
||||
goto out;
|
||||
}
|
||||
|
||||
if (misc_register(&lis3lv02d_misc_device))
|
||||
lis3->miscdev.minor = MISC_DYNAMIC_MINOR;
|
||||
lis3->miscdev.name = "freefall";
|
||||
lis3->miscdev.fops = &lis3lv02d_misc_fops;
|
||||
|
||||
if (misc_register(&lis3->miscdev))
|
||||
pr_err("misc_register failed\n");
|
||||
out:
|
||||
return 0;
|
||||
|
||||
@ -21,6 +21,7 @@
|
||||
#include <linux/platform_device.h>
|
||||
#include <linux/input-polldev.h>
|
||||
#include <linux/regulator/consumer.h>
|
||||
#include <linux/miscdevice.h>
|
||||
|
||||
/*
|
||||
* This driver tries to support the "digital" accelerometer chips from
|
||||
@ -273,6 +274,8 @@ struct lis3lv02d {
|
||||
struct fasync_struct *async_queue; /* queue for the misc device */
|
||||
wait_queue_head_t misc_wait; /* Wait queue for the misc device */
|
||||
unsigned long misc_opened; /* bit0: whether the device is open */
|
||||
struct miscdevice miscdev;
|
||||
|
||||
int data_ready_count[2];
|
||||
atomic_t wake_thread;
|
||||
unsigned char irq_cfg;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user