From: <gregkh@linuxfoundation.org>
To: michal.simek@xilinx.com, gregkh@linuxfoundation.org,
johan@kernel.org, stable@vger.kernel.org
Subject: patch "Revert "serial: uartps: Move Port ID to device data structure"" added to tty-linus
Date: Thu, 16 Apr 2020 16:06:40 +0200 [thread overview]
Message-ID: <1587046000228165@kroah.com> (raw)
This is a note to let you know that I've just added the patch titled
Revert "serial: uartps: Move Port ID to device data structure"
to my tty git tree which can be found at
git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty.git
in the tty-linus branch.
The patch will show up in the next release of the linux-next tree
(usually sometime within the next 24 hours during the week.)
The patch will hopefully also be merged in Linus's tree for the
next -rc kernel release.
If you have any questions about this process, please let me know.
From 492cc08bc16c44e2e587362ada3f6269dee2be22 Mon Sep 17 00:00:00 2001
From: Michal Simek <michal.simek@xilinx.com>
Date: Fri, 3 Apr 2020 11:24:35 +0200
Subject: Revert "serial: uartps: Move Port ID to device data structure"
This reverts commit bed25ac0e2b6ab8f9aed2d20bc9c3a2037311800.
As Johan says, this driver needs a lot more work and these changes are
only going in the wrong direction:
https://lkml.kernel.org/r/20190523091839.GC568@localhost
Reported-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Cc: stable <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/eb0ec98fecdca9b79c1a3ac0c30c668b6973b193.1585905873.git.michal.simek@xilinx.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/tty/serial/xilinx_uartps.c | 20 +++++++++-----------
1 file changed, 9 insertions(+), 11 deletions(-)
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c
index 58f0fa07ecdb..41d9c2f188f0 100644
--- a/drivers/tty/serial/xilinx_uartps.c
+++ b/drivers/tty/serial/xilinx_uartps.c
@@ -189,7 +189,6 @@ MODULE_PARM_DESC(rx_timeout, "Rx timeout, 1-255");
* @pclk: APB clock
* @cdns_uart_driver: Pointer to UART driver
* @baud: Current baud rate
- * @id: Port ID
* @clk_rate_change_nb: Notifier block for clock changes
* @quirks: Flags for RXBS support.
*/
@@ -199,7 +198,6 @@ struct cdns_uart {
struct clk *pclk;
struct uart_driver *cdns_uart_driver;
unsigned int baud;
- int id;
struct notifier_block clk_rate_change_nb;
u32 quirks;
bool cts_override;
@@ -1412,7 +1410,7 @@ MODULE_DEVICE_TABLE(of, cdns_uart_of_match);
*/
static int cdns_uart_probe(struct platform_device *pdev)
{
- int rc, irq;
+ int rc, id, irq;
struct uart_port *port;
struct resource *res;
struct cdns_uart *cdns_uart_data;
@@ -1438,18 +1436,18 @@ static int cdns_uart_probe(struct platform_device *pdev)
return -ENOMEM;
/* Look for a serialN alias */
- cdns_uart_data->id = of_alias_get_id(pdev->dev.of_node, "serial");
- if (cdns_uart_data->id < 0)
- cdns_uart_data->id = 0;
+ id = of_alias_get_id(pdev->dev.of_node, "serial");
+ if (id < 0)
+ id = 0;
- if (cdns_uart_data->id >= CDNS_UART_NR_PORTS) {
+ if (id >= CDNS_UART_NR_PORTS) {
dev_err(&pdev->dev, "Cannot get uart_port structure\n");
return -ENODEV;
}
/* There is a need to use unique driver name */
driver_name = devm_kasprintf(&pdev->dev, GFP_KERNEL, "%s%d",
- CDNS_UART_NAME, cdns_uart_data->id);
+ CDNS_UART_NAME, id);
if (!driver_name)
return -ENOMEM;
@@ -1457,7 +1455,7 @@ static int cdns_uart_probe(struct platform_device *pdev)
cdns_uart_uart_driver->driver_name = driver_name;
cdns_uart_uart_driver->dev_name = CDNS_UART_TTY_NAME;
cdns_uart_uart_driver->major = CDNS_UART_MAJOR;
- cdns_uart_uart_driver->minor = cdns_uart_data->id;
+ cdns_uart_uart_driver->minor = id;
cdns_uart_uart_driver->nr = 1;
#ifdef CONFIG_SERIAL_XILINX_PS_UART_CONSOLE
@@ -1468,7 +1466,7 @@ static int cdns_uart_probe(struct platform_device *pdev)
strncpy(cdns_uart_console->name, CDNS_UART_TTY_NAME,
sizeof(cdns_uart_console->name));
- cdns_uart_console->index = cdns_uart_data->id;
+ cdns_uart_console->index = id;
cdns_uart_console->write = cdns_uart_console_write;
cdns_uart_console->device = uart_console_device;
cdns_uart_console->setup = cdns_uart_console_setup;
@@ -1490,7 +1488,7 @@ static int cdns_uart_probe(struct platform_device *pdev)
* registration because tty_driver structure is not filled.
* name_base is 0 by default.
*/
- cdns_uart_uart_driver->tty_driver->name_base = cdns_uart_data->id;
+ cdns_uart_uart_driver->tty_driver->name_base = id;
match = of_match_node(cdns_uart_of_match, pdev->dev.of_node);
if (match && match->data) {
--
2.26.1
reply other threads:[~2020-04-16 14:07 UTC|newest]
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