diff options
| -rw-r--r-- | drivers/staging/gasket/gasket_core.c | 45 | ||||
| -rw-r--r-- | drivers/staging/gasket/gasket_core.h | 5 |
2 files changed, 0 insertions, 50 deletions
diff --git a/drivers/staging/gasket/gasket_core.c b/drivers/staging/gasket/gasket_core.c index 14649a794e35..b69b630f1b79 100644 --- a/drivers/staging/gasket/gasket_core.c +++ b/drivers/staging/gasket/gasket_core.c @@ -2068,51 +2068,6 @@ struct device *gasket_get_device(struct gasket_dev *dev) } /** - * Synchronously waits on device. - * @gasket_dev: Device struct. - * @bar: Bar - * @offset: Register offset - * @mask: Register mask - * @val: Expected value - * @timeout_ns: Timeout in nanoseconds - * - * Description: Busy waits for a specific combination of bits to be set - * on a Gasket register. - **/ -int gasket_wait_sync( - struct gasket_dev *gasket_dev, int bar, u64 offset, u64 mask, u64 val, - u64 timeout_ns) -{ - u64 reg; - struct timespec start_time, cur_time; - u64 diff_nanosec; - int count = 0; - - reg = gasket_dev_read_64(gasket_dev, bar, offset); - start_time = current_kernel_time(); - while ((reg & mask) != val) { - count++; - cur_time = current_kernel_time(); - diff_nanosec = (u64)(cur_time.tv_sec - start_time.tv_sec) * - 1000000000LL + - (u64)(cur_time.tv_nsec) - - (u64)(start_time.tv_nsec); - if (diff_nanosec > timeout_ns) { - gasket_log_error( - gasket_dev, - "%s timeout: reg %llx count %x " - "dma %lld ns\n", - __func__, - offset, count, diff_nanosec); - return -1; - } - reg = gasket_dev_read_64(gasket_dev, bar, offset); - } - return 0; -} -EXPORT_SYMBOL(gasket_wait_sync); - -/** * Asynchronously waits on device. * @gasket_dev: Device struct. * @bar: Bar diff --git a/drivers/staging/gasket/gasket_core.h b/drivers/staging/gasket/gasket_core.h index 45013446b8c5..e51acadc0fc4 100644 --- a/drivers/staging/gasket/gasket_core.h +++ b/drivers/staging/gasket/gasket_core.h @@ -699,11 +699,6 @@ const struct gasket_driver_desc *gasket_get_driver_desc(struct gasket_dev *dev); /* Get the device structure for a given device. */ struct device *gasket_get_device(struct gasket_dev *dev); -/* Helper function, Synchronous waits on a given set of bits. */ -int gasket_wait_sync( - struct gasket_dev *gasket_dev, int bar, u64 offset, u64 mask, u64 val, - u64 timeout_ns); - /* Helper function, Asynchronous waits on a given set of bits. */ int gasket_wait_with_reschedule( struct gasket_dev *gasket_dev, int bar, u64 offset, u64 mask, u64 val, |