diff options
| author | Rosen Penev <rosenp@gmail.com> | 2026-07-27 12:46:04 -0700 |
|---|---|---|
| committer | Jassi Brar <jassisinghbrar@gmail.com> | 2026-08-15 15:41:13 -0500 |
| commit | 3ccffcc3672af5fc2f5809d349f26d2be8d318a3 (patch) | |
| tree | f85aa8218a976abef2061b247c896496cf86400a /drivers | |
| parent | 66c7bcad72430a02c860521031350b84b31ad9a8 (diff) | |
| download | linux-3ccffcc3672af5fc2f5809d349f26d2be8d318a3.tar.gz linux-3ccffcc3672af5fc2f5809d349f26d2be8d318a3.zip | |
mailbox: bcm2835: use platform_get_irq and simplify probe
Replace irq_of_parse_and_map() with platform_get_irq() for the mailbox
interrupt lookup, and move IRQ and MMIO resource acquisition to the top
of the probe function before any memory allocation.
Simplify error handling throughout: use direct return of platform_get_irq
and PTR_ERR values, remove the redundant platform_set_drvdata and
dev_info log, and inline the final return.
Assisted-by: Opencode:Big-Pickle
Signed-off-by: Rosen Penev <rosenp@gmail.com>
Signed-off-by: Jassi Brar <jassisinghbrar@gmail.com>
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/mailbox/bcm2835-mailbox.c | 32 |
1 files changed, 15 insertions, 17 deletions
diff --git a/drivers/mailbox/bcm2835-mailbox.c b/drivers/mailbox/bcm2835-mailbox.c index 5af1e434c71c..0ca75c378a60 100644 --- a/drivers/mailbox/bcm2835-mailbox.c +++ b/drivers/mailbox/bcm2835-mailbox.c @@ -136,25 +136,30 @@ static struct mbox_chan *bcm2835_mbox_index_xlate(struct mbox_controller *mbox, static int bcm2835_mbox_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; + void __iomem *regs; int ret = 0; + int irq; struct bcm2835_mbox *mbox; + irq = platform_get_irq(pdev, 0); + if (irq < 0) + return irq; + + regs = devm_platform_ioremap_resource(pdev, 0); + if (IS_ERR(regs)) + return PTR_ERR(regs); + mbox = devm_kzalloc(dev, sizeof(*mbox), GFP_KERNEL); if (mbox == NULL) return -ENOMEM; + spin_lock_init(&mbox->lock); + mbox->regs = regs; - ret = devm_request_irq(dev, irq_of_parse_and_map(dev->of_node, 0), - bcm2835_mbox_irq, IRQF_NO_SUSPEND, dev_name(dev), - mbox); + ret = devm_request_irq(dev, irq, bcm2835_mbox_irq, + IRQF_NO_SUSPEND, dev_name(dev), mbox); if (ret) - return -ENODEV; - - mbox->regs = devm_platform_ioremap_resource(pdev, 0); - if (IS_ERR(mbox->regs)) { - ret = PTR_ERR(mbox->regs); return ret; - } mbox->controller.txdone_poll = true; mbox->controller.txpoll_period = 5; @@ -167,14 +172,7 @@ static int bcm2835_mbox_probe(struct platform_device *pdev) if (!mbox->controller.chans) return -ENOMEM; - ret = devm_mbox_controller_register(dev, &mbox->controller); - if (ret) - return ret; - - platform_set_drvdata(pdev, mbox); - dev_info(dev, "mailbox enabled\n"); - - return ret; + return devm_mbox_controller_register(dev, &mbox->controller); } static const struct of_device_id bcm2835_mbox_of_match[] = { |