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qca_spi: Improve SPI IRQ handling

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The functions qcaspi_netdev_open/close are responsible of request &
free of the SPI interrupt, which wasn't the best choice because
allocation problems are discovered not during probe. So let us split
IRQ allocation & enabling, so we can take advantage of a device
managed IRQ.

Signed-off-by: Stefan Wahren <wahrenst@gmx.net>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Stefan Wahren 2024-01-28 21:10:47 +01:00 committed by David S. Miller
parent 1a10d67ca4
commit 3c5e487808
1 changed files with 11 additions and 10 deletions
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21
drivers/net/ethernet/qualcomm/qca_spi.c
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@ -688,7 +688,6 @@ qcaspi_netdev_open(struct net_device *dev)
{
struct qcaspi *qca = netdev_priv(dev);
struct task_struct *thread;
int ret = 0;
if (!qca)
return -EINVAL;
@ -709,14 +708,7 @@ qcaspi_netdev_open(struct net_device *dev)
qca->spi_thread = thread;
ret = request_irq(qca->spi_dev->irq, qcaspi_intr_handler, 0,
dev->name, qca);
if (ret) {
netdev_err(dev, "%s: unable to get IRQ %d (irqval=%d).\n",
QCASPI_DRV_NAME, qca->spi_dev->irq, ret);
kthread_stop(qca->spi_thread);
return ret;
}
enable_irq(qca->spi_dev->irq);
/* SPI thread takes care of TX queue */
@ -731,7 +723,7 @@ qcaspi_netdev_close(struct net_device *dev)
netif_stop_queue(dev);
qcaspi_write_register(qca, SPI_REG_INTR_ENABLE, 0, wr_verify);
free_irq(qca->spi_dev->irq, qca);
disable_irq(qca->spi_dev->irq);
if (qca->spi_thread) {
kthread_stop(qca->spi_thread);
@ -989,6 +981,15 @@ qca_spi_probe(struct spi_device *spi)
spi_set_drvdata(spi, qcaspi_devs);
ret = devm_request_irq(&spi->dev, spi->irq, qcaspi_intr_handler,
IRQF_NO_AUTOEN, qca->net_dev->name, qca);
if (ret) {
dev_err(&spi->dev, "Unable to get IRQ %d (irqval=%d).\n",
spi->irq, ret);
free_netdev(qcaspi_devs);
return ret;
}
ret = of_get_ethdev_address(spi->dev.of_node, qca->net_dev);
if (ret) {
eth_hw_addr_random(qca->net_dev);