mos6522: remove update_irq() and set_sr_int() methods from MOS6522DeviceClass

Now that the mos6522 IRQs are managed using standard qdev gpios these methods
are no longer required.

Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Message-Id: <20220305150957.5053-6-mark.cave-ayland@ilande.co.uk>
Signed-off-by: Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>

hw/misc/mos6522.c

@@ -208,13 +208,6 @@ static void mos6522_timer2(void *opaque)
     mos6522_update_irq(s);
 }
 
-static void mos6522_set_sr_int(MOS6522State *s)
-{
-    trace_mos6522_set_sr_int();
-    s->ifr |= SR_INT;
-    mos6522_update_irq(s);
-}
-
 static uint64_t mos6522_get_counter_value(MOS6522State *s, MOS6522Timer *ti)
 {
     return muldiv64(qemu_clock_get_ns(QEMU_CLOCK_VIRTUAL) - ti->load_time,
@@ -527,10 +520,8 @@ static void mos6522_class_init(ObjectClass *oc, void *data)
     dc->vmsd = &vmstate_mos6522;
     device_class_set_props(dc, mos6522_properties);
     mdc->parent_reset = dc->reset;
-    mdc->set_sr_int = mos6522_set_sr_int;
     mdc->portB_write = mos6522_portB_write;
     mdc->portA_write = mos6522_portA_write;
-    mdc->update_irq = mos6522_update_irq;
     mdc->get_timer1_counter_value = mos6522_get_counter_value;
     mdc->get_timer2_counter_value = mos6522_get_counter_value;
     mdc->get_timer1_load_time = mos6522_get_load_time;

include/hw/misc/mos6522.h

@@ -140,10 +140,8 @@ struct MOS6522DeviceClass {
     DeviceClass parent_class;
 
     DeviceReset parent_reset;
-    void (*set_sr_int)(MOS6522State *dev);
     void (*portB_write)(MOS6522State *dev);
     void (*portA_write)(MOS6522State *dev);
-    void (*update_irq)(MOS6522State *dev);
     /* These are used to influence the CUDA MacOS timebase calibration */
     uint64_t (*get_timer1_counter_value)(MOS6522State *dev, MOS6522Timer *ti);
     uint64_t (*get_timer2_counter_value)(MOS6522State *dev, MOS6522Timer *ti);