| 12345678910111213141516171819202122232425262728293031323334353637383940 |
- From 182ead3e418a20328b73152b8e81fc8b4cac3b0b Mon Sep 17 00:00:00 2001
- From: Michal Simek <[email protected]>
- Date: Wed, 25 Apr 2018 15:48:42 +0200
- Subject: earlycon: Remove hardcoded port->uartclk initialization in of_setup_earlycon
- From: Michal Simek <[email protected]>
- commit 182ead3e418a20328b73152b8e81fc8b4cac3b0b upstream.
- There is no reason to initialize uartclk to BASE_BAUD * 16 for DT based
- systems.
- [-stable comment: commit 31cb9a8575ca ("earlycon: initialise baud field
- of earlycon device structure") has changed 8250_early.c behavior which
- now tries to setup UART speed.
- Already-backported upstream commit 0ff3ab701963 ("serial: 8250_early:
- Only set divisor if valid clk & baud") handles properly uartclk not
- being set but it still requires backporting fix for wrong uartclk val.
- This fixes malformed early console output on arch-es with BASE_BAUD.]
- Fixes: 31cb9a8575ca ("earlycon: initialise baud field of earlycon device structure")
- Signed-off-by: Michal Simek <[email protected]>
- Tested-by: Matt Redfearn <[email protected]>
- [rmilecki: add -stable comment and Fixes tag]
- Signed-off-by: Rafał Miłecki <[email protected]>
- Signed-off-by: Greg Kroah-Hartman <[email protected]>
- ---
- drivers/tty/serial/earlycon.c | 1 -
- 1 file changed, 1 deletion(-)
- --- a/drivers/tty/serial/earlycon.c
- +++ b/drivers/tty/serial/earlycon.c
- @@ -254,7 +254,6 @@ int __init of_setup_earlycon(const struc
- return -ENXIO;
- }
- port->mapbase = addr;
- - port->uartclk = BASE_BAUD * 16;
-
- val = of_get_flat_dt_prop(node, "reg-offset", NULL);
- if (val)
|
