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| author |  Guanbing Huang <albanhuang@tencent.com>
| 2024-04-16 11:16:37 +0800 |
|---|---|---|
| committer |  Greg Kroah-Hartman <gregkh@linuxfoundation.org>
| 2024-04-17 13:14:30 +0200 |
| commit | 18ba7f2d99f698251294fe9521da3f00d03f96aa (patch) | |
| tree | 0031ebbeebe2e2df40a89b0ec35c774ef8fb3ec2 /drivers/tty | |
| parent | PNP: Add dev_is_pnp() macro (diff) | |
| download | linux-18ba7f2d99f698251294fe9521da3f00d03f96aa.tar.gz linux-18ba7f2d99f698251294fe9521da3f00d03f96aa.tar.bz2 linux-18ba7f2d99f698251294fe9521da3f00d03f96aa.zip | |
serial: port: Add support of PNP IRQ to __uart_read_properties()
The function __uart_read_properties doesn't cover PNP devices, so add IRQ
processing for PNP devices in the branch.
Signed-off-by: Guanbing Huang <albanhuang@tencent.com>
Suggested-by: Andy Shevchenko <andriy.shevchenko@intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Bing Fan <tombinfan@tencent.com>
Tested-by: Linheng Du <dylanlhdu@tencent.com>
Link: https://lore.kernel.org/r/7f4ca31ef1cab4c6ecad22fafd82117686b696be.1713234515.git.albanhuang@tencent.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/serial_port.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/drivers/tty/serial/serial_port.c b/drivers/tty/serial/serial_port.c index 3408c8827561..47dd8c3fd06d 100644 --- a/drivers/tty/serial/serial_port.c +++ b/drivers/tty/serial/serial_port.c @@ -11,6 +11,7 @@ #include <linux/of.h> #include <linux/platform_device.h> #include <linux/pm_runtime.h> +#include <linux/pnp.h> #include <linux/property.h> #include <linux/serial_core.h> #include <linux/spinlock.h> @@ -221,7 +222,11 @@ static int __uart_read_properties(struct uart_port *port, bool use_defaults) if (dev_is_platform(dev)) ret = platform_get_irq(to_platform_device(dev), 0); - else + else if (dev_is_pnp(dev)) { + ret = pnp_irq(to_pnp_dev(dev), 0); + if (ret < 0) + ret = -ENXIO; + } else ret = fwnode_irq_get(dev_fwnode(dev), 0); if (ret == -EPROBE_DEFER) return ret; |