xtensa: move PLATFORM_NR_IRQS to Kconfig

Signed-off-by: Max Filippov <jcmvbkbc@gmail.com>

arch/xtensa/Kconfig

@@ -435,6 +435,10 @@ config XTENSA_PLATFORM_XTFPGA
 
 endchoice
 
+config PLATFORM_NR_IRQS
+	int
+	default 3 if XTENSA_PLATFORM_XT2000
+	default 0
 
 config XTENSA_CPU_CLOCK
 	int "CPU clock rate [MHz]"

arch/xtensa/include/asm/irq.h

@@ -12,7 +12,6 @@
 #define _XTENSA_IRQ_H
 
 #include <linux/init.h>
-#include <platform/hardware.h>
 #include <variant/core.h>
 
 #ifdef CONFIG_VARIANT_IRQ_SWITCH
@@ -25,7 +24,9 @@ static inline void variant_irq_disable(unsigned int irq) { }
 #ifndef VARIANT_NR_IRQS
 # define VARIANT_NR_IRQS 0
 #endif
-#ifndef PLATFORM_NR_IRQS
+#ifdef CONFIG_PLATFORM_NR_IRQS
+# define PLATFORM_NR_IRQS CONFIG_PLATFORM_NR_IRQS
+#else
 # define PLATFORM_NR_IRQS 0
 #endif
 #define XTENSA_NR_IRQS XCHAL_NUM_INTERRUPTS

arch/xtensa/platforms/xt2000/include/platform/hardware.h

@@ -17,10 +17,6 @@
 
 #include <variant/core.h>
 
-/*
- * Number of platform IRQs
- */
-#define PLATFORM_NR_IRQS 3
 /*
  * On-board components.
  */

arch/xtensa/platforms/xtfpga/include/platform/hardware.h

@@ -17,10 +17,6 @@
 #ifndef __XTENSA_XTAVNET_HARDWARE_H
 #define __XTENSA_XTAVNET_HARDWARE_H
 
-/* Interrupt configuration. */
-
-#define PLATFORM_NR_IRQS	0
-
 /* Default assignment of LX60 devices to external interrupts. */
 
 #ifdef CONFIG_XTENSA_MX