Commit cea62f9f authored by AaeonIot's avatar AaeonIot Committed by Wim Van Sebroeck
Browse files

watchdog: f71808e_wdt: Add F81966 support 



This adds watchdog support the Fintek F81966 Super I/O chip.
Testing was done on the Aaeon SSE-OPTI

Signed-off-by: default avatarAaeonIot <sophiehu@aaeon.com.tw>
Signed-off-by: default avatarChia-Lin Kao (AceLan) <acelan.kao@canonical.com>
Reviewed-by: default avatarGuenter Roeck <linux@roeck-us.net>
Link: https://lore.kernel.org/r/20211117024052.2427539-1-acelan.kao@canonical.com


Signed-off-by: default avatarGuenter Roeck <linux@roeck-us.net>
Signed-off-by: default avatarWim Van Sebroeck <wim@linux-watchdog.org>
parent ab571cbc

drivers/watchdog/f71808e_wdt.c

+8 −2
Original line number Diff line number Diff line
@@ -49,6 +49,7 @@ 
#define SIO_F81803_ID		0x1210	/* Chipset ID */

#define SIO_F81865_ID		0x0704	/* Chipset ID */

#define SIO_F81866_ID		0x1010	/* Chipset ID */

#define SIO_F81966_ID		0x1502  /* F81804 chipset ID, same for f81966 */



#define F71808FG_REG_WDO_CONF		0xf0

#define F71808FG_REG_WDT_CONF		0xf5
@@ -105,7 +106,7 @@ MODULE_PARM_DESC(start_withtimeout, "Start watchdog timer on module load with" 
	" given initial timeout. Zero (default) disables this feature.");



enum chips { f71808fg, f71858fg, f71862fg, f71868, f71869, f71882fg, f71889fg,

	     f81803, f81865, f81866};

	     f81803, f81865, f81866, f81966};



static const char * const fintek_wdt_names[] = {

	"f71808fg",
@@ -118,6 +119,7 @@ static const char * const fintek_wdt_names[] = { 
	"f81803",

	"f81865",

	"f81866",

	"f81966"

};



/* Super-I/O Function prototypes */
@@ -347,6 +349,7 @@ static int fintek_wdt_start(struct watchdog_device *wdd) 
		break;



	case f81866:

	case f81966:

		/*

		 * GPIO1 Control Register when 27h BIT3:2 = 01 & BIT0 = 0.

		 * The PIN 70(GPIO15/WDTRST) is controlled by 2Ch:
@@ -373,7 +376,7 @@ static int fintek_wdt_start(struct watchdog_device *wdd) 
	superio_select(wd->sioaddr, SIO_F71808FG_LD_WDT);

	superio_set_bit(wd->sioaddr, SIO_REG_ENABLE, 0);



	if (wd->type == f81865 || wd->type == f81866)

	if (wd->type == f81865 || wd->type == f81866 || wd->type == f81966)

		superio_set_bit(wd->sioaddr, F81865_REG_WDO_CONF,

				F81865_FLAG_WDOUT_EN);

	else
@@ -580,6 +583,9 @@ static int __init fintek_wdt_find(int sioaddr) 
	case SIO_F81866_ID:

		type = f81866;

		break;

	case SIO_F81966_ID:

		type = f81966;

		break;

	default:

		pr_info("Unrecognized Fintek device: %04x\n",

			(unsigned int)devid);