mfd: da9052: Store result from fault_log

Other sub-components (da9052-wdt) could use the result to determine
reboot cause. Expose the result by make it part of the da9052 structure.

Signed-off-by: Marcus Folkesson <[e-mail]>
Link: https://lore.kernel.org/r/[e-mail]
Signed-off-by: Lee Jones <[e-mail]>

drivers/mfd/da9052-core.c

···
 				"Cannot reset FAULT_LOG values %d\n", ret);
 	}
 
+	da9052->fault_log = fault_log;
 	return ret;
 }
 

include/linux/mfd/da9052/da9052.h

···
 
 	int chip_irq;
 
+	int fault_log;
+
 	/* SOC I/O transfer related fixes for DA9052/53 */
 	int (*fix_io) (struct da9052 *da9052, unsigned char reg);
 };