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| author | Qian Cai <quic_qiancai@quicinc.com> | 2021-08-13 19:31:35 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-08-16 19:52:08 +0300 |
| commit | 94560f6156fed8ddb0dfc93620382fadf02d90d0 (patch) | |
| tree | 0ff18bc65fcb938e8c3272566288250efc53ab50 /drivers/tty/serial/amba-pl011.c | |
| parent | 9a4d22f7955ee365f7829859f599a01b3ffd850b (diff) | |
| download | linux-94560f6156fed8ddb0dfc93620382fadf02d90d0.tar.xz | |
Revert "arm pl011 serial: support multi-irq request"
This reverts commit b0819465be8be0c76af15436a9e6db4dab4c196e which
results in amba_device-specific code being called from
sbsa_uart_startup() and sbsa_uart_shutdown().
Signed-off-by: Qian Cai <quic_qiancai@quicinc.com>
Link: https://lore.kernel.org/r/20210813163135.205-1-quic_qiancai@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/amba-pl011.c')
| -rw-r--r-- | drivers/tty/serial/amba-pl011.c | 34 |
1 files changed, 3 insertions, 31 deletions
diff --git a/drivers/tty/serial/amba-pl011.c b/drivers/tty/serial/amba-pl011.c index cf6ff229e267..d361cd84ff8c 100644 --- a/drivers/tty/serial/amba-pl011.c +++ b/drivers/tty/serial/amba-pl011.c @@ -1777,39 +1777,11 @@ static void pl011_write_lcr_h(struct uart_amba_port *uap, unsigned int lcr_h) } } -static void pl011_release_irq(struct uart_amba_port *uap, unsigned int max_cnt) -{ - struct amba_device *amba_dev = container_of(uap->port.dev, struct amba_device, dev); - int i; - - for (i = 0; i < max_cnt; i++) - if (amba_dev->irq[i]) - free_irq(amba_dev->irq[i], uap); -} - static int pl011_allocate_irq(struct uart_amba_port *uap) { - int ret = 0; - int i; - unsigned int virq; - struct amba_device *amba_dev = container_of(uap->port.dev, struct amba_device, dev); - pl011_write(uap->im, uap, REG_IMSC); - for (i = 0; i < AMBA_NR_IRQS; i++) { - virq = amba_dev->irq[i]; - if (virq == 0) - break; - - ret = request_irq(virq, pl011_int, IRQF_SHARED, dev_name(&amba_dev->dev), uap); - if (ret) { - dev_err(uap->port.dev, "request %u interrupt failed\n", virq); - pl011_release_irq(uap, i - 1); - break; - } - } - - return ret; + return request_irq(uap->port.irq, pl011_int, IRQF_SHARED, "uart-pl011", uap); } /* @@ -1981,7 +1953,7 @@ static void pl011_shutdown(struct uart_port *port) if ((port->rs485.flags & SER_RS485_ENABLED) && uap->rs485_tx_started) pl011_rs485_tx_stop(uap); - pl011_release_irq(uap, AMBA_NR_IRQS); + free_irq(uap->port.irq, uap); pl011_disable_uart(uap); @@ -2011,7 +1983,7 @@ static void sbsa_uart_shutdown(struct uart_port *port) pl011_disable_interrupts(uap); - pl011_release_irq(uap, AMBA_NR_IRQS); + free_irq(uap->port.irq, uap); if (uap->port.ops->flush_buffer) uap->port.ops->flush_buffer(port); |