Commit 4d3d50f6 authored by Thomas Weißschuh's avatar Thomas Weißschuh Committed by Wim Van Sebroeck
Browse files

watchdog: sp5100_tco: Add support for get_timeleft 



Tested on a Gigabyte X570 I AORUS PRO WIFI.

Signed-off-by: default avatarThomas Weißschuh <linux@weissschuh.net>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20210928065735.548966-1-linux@weissschuh.net


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent 59b0f513

drivers/watchdog/sp5100_tco.c

+9 −0
Original line number Diff line number Diff line
@@ -10,6 +10,7 @@ 
 *				https://www.kernelconcepts.de

 *

 *	See AMD Publication 43009 "AMD SB700/710/750 Register Reference Guide",

 *	    AMD Publication 44413 "AMD SP5100 Register Reference Guide"

 *	    AMD Publication 45482 "AMD SB800-Series Southbridges Register

 *	                                                      Reference Guide"

 *	    AMD Publication 48751 "BIOS and Kernel Developer’s Guide (BKDG)
@@ -144,6 +145,13 @@ static int tco_timer_set_timeout(struct watchdog_device *wdd, 
	return 0;

}



static unsigned int tco_timer_get_timeleft(struct watchdog_device *wdd)

{

	struct sp5100_tco *tco = watchdog_get_drvdata(wdd);



	return readl(SP5100_WDT_COUNT(tco->tcobase));

}



static u8 sp5100_tco_read_pm_reg8(u8 index)

{

	outb(index, SP5100_IO_PM_INDEX_REG);
@@ -386,6 +394,7 @@ static const struct watchdog_ops sp5100_tco_wdt_ops = { 
	.stop = tco_timer_stop,

	.ping = tco_timer_ping,

	.set_timeout = tco_timer_set_timeout,

	.get_timeleft = tco_timer_get_timeleft,

};



static int sp5100_tco_probe(struct platform_device *pdev)