watchdog: hpwdt: add support for iLO5

iLO5 will offer the same watchdog timer as previous generations, but the
PCI subsystem vendor ID will be PCI_VENDOR_ID_HP_3PAR (0x1590) instead of
PCI_VENDOR_ID_HP (0x103c). Add 0x1590 to the whitelist and be more
specific when ignoring the 103c,1979 device.

Signed-off-by: Brian Boylston <[e-mail]>
Reviewed-by: Guenter Roeck <[e-mail]>
Signed-off-by: Guenter Roeck <[e-mail]>
Signed-off-by: Wim Van Sebroeck <[e-mail]>

drivers/watchdog/hpwdt.c

···
 #include <asm/nmi.h>
 #include <asm/frame.h>
 
-#define HPWDT_VERSION			"1.3.3"
+#define HPWDT_VERSION			"1.4.0"
 #define SECS_TO_TICKS(secs)		((secs) * 1000 / 128)
 #define TICKS_TO_SECS(ticks)		((ticks) * 128 / 1000)
 #define HPWDT_MAX_TIMER			TICKS_TO_SECS(65535)
···
 	 * not run on a legacy ASM box.
 	 * So we only support the G5 ProLiant servers and higher.
 	 */
-	if (dev->subsystem_vendor != PCI_VENDOR_ID_HP) {
+	if (dev->subsystem_vendor != PCI_VENDOR_ID_HP &&
+	    dev->subsystem_vendor != PCI_VENDOR_ID_HP_3PAR) {
 		dev_warn(&dev->dev,
 			"This server does not have an iLO2+ ASIC.\n");
 		return -ENODEV;
···
 	/*
 	 * Ignore all auxilary iLO devices with the following PCI ID
 	 */
-	if (dev->subsystem_device == 0x1979)
+	if (dev->subsystem_vendor == PCI_VENDOR_ID_HP &&
+	    dev->subsystem_device == 0x1979)
 		return -ENODEV;
 
 	if (pci_enable_device(dev)) {