diff options
Diffstat (limited to 'drivers/media/rc/nuvoton-cir.c')
| -rw-r--r-- | drivers/media/rc/nuvoton-cir.c | 24 |
1 files changed, 12 insertions, 12 deletions
diff --git a/drivers/media/rc/nuvoton-cir.c b/drivers/media/rc/nuvoton-cir.c index 291d870e618f..d428b4e6e26f 100644 --- a/drivers/media/rc/nuvoton-cir.c +++ b/drivers/media/rc/nuvoton-cir.c @@ -727,7 +727,6 @@ static void nvt_handle_rx_fifo_overrun(struct nvt_dev *nvt) /* copy data from hardware rx fifo into driver buffer */ static void nvt_get_rx_ir_data(struct nvt_dev *nvt) { - unsigned long flags; u8 fifocount, val; unsigned int b_idx; bool overrun = false; @@ -746,8 +745,6 @@ static void nvt_get_rx_ir_data(struct nvt_dev *nvt) nvt_dbg("attempting to fetch %u bytes from hw rx fifo", fifocount); - spin_lock_irqsave(&nvt->nvt_lock, flags); - b_idx = nvt->pkts; /* This should never happen, but lets check anyway... */ @@ -769,8 +766,6 @@ static void nvt_get_rx_ir_data(struct nvt_dev *nvt) if (overrun) nvt_handle_rx_fifo_overrun(nvt); - - spin_unlock_irqrestore(&nvt->nvt_lock, flags); } static void nvt_cir_log_irqs(u8 status, u8 iren) @@ -811,6 +806,8 @@ static irqreturn_t nvt_cir_isr(int irq, void *data) nvt_dbg_verbose("%s firing", __func__); + spin_lock_irqsave(&nvt->nvt_lock, flags); + /* * Get IR Status register contents. Write 1 to ack/clear * @@ -831,6 +828,7 @@ static irqreturn_t nvt_cir_isr(int irq, void *data) * status bit whether the related interrupt source is enabled */ if (!(status & iren)) { + spin_unlock_irqrestore(&nvt->nvt_lock, flags); nvt_dbg_verbose("%s exiting, IRSTS 0x0", __func__); return IRQ_NONE; } @@ -852,16 +850,14 @@ static irqreturn_t nvt_cir_isr(int irq, void *data) if (nvt_cir_tx_inactive(nvt)) nvt_get_rx_ir_data(nvt); - spin_lock_irqsave(&nvt->nvt_lock, flags); - cur_state = nvt->study_state; - spin_unlock_irqrestore(&nvt->nvt_lock, flags); - if (cur_state == ST_STUDY_NONE) nvt_clear_cir_fifo(nvt); } + spin_unlock_irqrestore(&nvt->nvt_lock, flags); + if (status & CIR_IRSTS_TE) nvt_clear_tx_fifo(nvt); @@ -910,14 +906,18 @@ static irqreturn_t nvt_cir_wake_isr(int irq, void *data) nvt_dbg_wake("%s firing", __func__); + spin_lock_irqsave(&nvt->nvt_lock, flags); + status = nvt_cir_wake_reg_read(nvt, CIR_WAKE_IRSTS); iren = nvt_cir_wake_reg_read(nvt, CIR_WAKE_IREN); /* IRQ may be shared with CIR, therefore check for each * status bit whether the related interrupt source is enabled */ - if (!(status & iren)) + if (!(status & iren)) { + spin_unlock_irqrestore(&nvt->nvt_lock, flags); return IRQ_NONE; + } if (status & CIR_WAKE_IRSTS_IR_PENDING) nvt_clear_cir_wake_fifo(nvt); @@ -933,11 +933,11 @@ static irqreturn_t nvt_cir_wake_isr(int irq, void *data) } nvt_cir_wake_reg_write(nvt, 0, CIR_WAKE_IREN); - spin_lock_irqsave(&nvt->nvt_lock, flags); nvt->wake_state = ST_WAKE_FINISH; - spin_unlock_irqrestore(&nvt->nvt_lock, flags); } + spin_unlock_irqrestore(&nvt->nvt_lock, flags); + nvt_dbg_wake("%s done", __func__); return IRQ_HANDLED; } |