From: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
To: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Andy Shevchenko <andriy.shevchenko@linux.intel.com>,
Guanbing Huang <albanhuang@tencent.com>,
linux-kernel@vger.kernel.org, linux-serial@vger.kernel.org
Cc: Jiri Slaby <jirislaby@kernel.org>
Subject: [PATCH v1 6/6] serial: 8250_pnp: Remove unneeded ->iotype assignment
Date: Fri, 24 Jan 2025 18:10:51 +0200 [thread overview]
Message-ID: <20250124161530.398361-7-andriy.shevchenko@linux.intel.com> (raw)
In-Reply-To: <20250124161530.398361-1-andriy.shevchenko@linux.intel.com>
If ->iobase is set the default will be UPIO_PORT for ->iotype after
the uart_read_and_validate_port_properties() call. Hence no need
to assign that explicitly. Otherwise it will be UPIO_MEM.
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
---
drivers/tty/serial/8250/8250_pnp.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/drivers/tty/serial/8250/8250_pnp.c b/drivers/tty/serial/8250/8250_pnp.c
index 7c06ae79d8e2..7a837fdf9df1 100644
--- a/drivers/tty/serial/8250/8250_pnp.c
+++ b/drivers/tty/serial/8250/8250_pnp.c
@@ -436,7 +436,6 @@ serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
{
struct uart_8250_port uart, *port;
int ret, flags = dev_id->driver_data;
- unsigned char iotype;
long line;
if (flags & UNKNOWN_DEV) {
@@ -448,14 +447,11 @@ serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
memset(&uart, 0, sizeof(uart));
if ((flags & CIR_PORT) && pnp_port_valid(dev, 2)) {
uart.port.iobase = pnp_port_start(dev, 2);
- iotype = UPIO_PORT;
} else if (pnp_port_valid(dev, 0)) {
uart.port.iobase = pnp_port_start(dev, 0);
- iotype = UPIO_PORT;
} else if (pnp_mem_valid(dev, 0)) {
uart.port.mapbase = pnp_mem_start(dev, 0);
uart.port.mapsize = pnp_mem_len(dev, 0);
- iotype = UPIO_MEM;
uart.port.flags = UPF_IOREMAP;
} else
return -ENODEV;
@@ -471,12 +467,6 @@ serial_pnp_probe(struct pnp_dev *dev, const struct pnp_device_id *dev_id)
if (ret)
return ret;
- /*
- * The previous call may not set iotype correctly when reg-io-width
- * property is absent and it doesn't support IO port resource.
- */
- uart.port.iotype = iotype;
-
if (flags & CIR_PORT) {
uart.port.flags |= UPF_FIXED_PORT | UPF_FIXED_TYPE;
uart.port.type = PORT_8250_CIR;
--
2.43.0.rc1.1336.g36b5255a03ac
prev parent reply other threads:[~2025-01-24 16:15 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2025-01-24 16:10 [PATCH v1 0/6] serial: port: Fix UPIO_PORT iotype handling Andy Shevchenko
2025-01-24 16:10 ` [PATCH v1 1/6] serial: port: Assign ->iotype correctly when ->iobase is set Andy Shevchenko
2025-02-04 13:45 ` Greg Kroah-Hartman
2025-01-24 16:10 ` [PATCH v1 2/6] serial: port: Always update ->iotype in __uart_read_properties() Andy Shevchenko
2025-01-24 16:10 ` [PATCH v1 3/6] serial: port: Make ->iotype validation global " Andy Shevchenko
2025-01-24 16:10 ` [PATCH v1 4/6] serial: 8250_of: Remove unneeded ->iotype assignment Andy Shevchenko
2025-01-24 16:10 ` [PATCH v1 5/6] serial: 8250_platform: " Andy Shevchenko
2025-01-24 16:10 ` Andy Shevchenko [this message]
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