hw/dma: Pass parent object to i8257_dma_init()

Set I8257 instances parent (migration isn't affected).

Signed-off-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20240213114426.87836-1-philmd@linaro.org>

hw/dma/i82374.c

@@ -129,7 +129,7 @@ static void i82374_realize(DeviceState *dev, Error **errp)
         error_setg(errp, "DMA already initialized on ISA bus");
         return;
     }
-    i8257_dma_init(isa_bus, true);
+    i8257_dma_init(OBJECT(dev), isa_bus, true);
 
     portio_list_init(&s->port_list, OBJECT(s), i82374_portio_list, s,
                      "i82374");

hw/dma/i8257.c

@@ -632,12 +632,13 @@ static void i8257_register_types(void)
 
 type_init(i8257_register_types)
 
-void i8257_dma_init(ISABus *bus, bool high_page_enable)
+void i8257_dma_init(Object *parent, ISABus *bus, bool high_page_enable)
 {
     ISADevice *isa1, *isa2;
     DeviceState *d;
 
     isa1 = isa_new(TYPE_I8257);
+    object_property_add_child(parent, "dma[*]", OBJECT(isa1));
     d = DEVICE(isa1);
     qdev_prop_set_int32(d, "base", 0x00);
     qdev_prop_set_int32(d, "page-base", 0x80);
@@ -646,6 +647,7 @@ void i8257_dma_init(ISABus *bus, bool high_page_enable)
     isa_realize_and_unref(isa1, bus, &error_fatal);
 
     isa2 = isa_new(TYPE_I8257);
+    object_property_add_child(parent, "dma[*]", OBJECT(isa2));
     d = DEVICE(isa2);
     qdev_prop_set_int32(d, "base", 0xc0);
     qdev_prop_set_int32(d, "page-base", 0x88);

hw/i386/pc_piix.c

@@ -310,7 +310,7 @@ static void pc_init1(MachineState *machine,
         qdev_prop_set_int32(DEVICE(rtc_state), "base_year", 2000);
         isa_realize_and_unref(rtc_state, isa_bus, &error_fatal);
 
-        i8257_dma_init(isa_bus, 0);
+        i8257_dma_init(OBJECT(machine), isa_bus, 0);
         pcms->hpet_enabled = false;
         idebus[0] = NULL;
         idebus[1] = NULL;

hw/isa/lpc_ich9.c

@@ -739,7 +739,7 @@ static void ich9_lpc_realize(PCIDevice *d, Error **errp)
 
     isa_bus_register_input_irqs(isa_bus, lpc->gsi);
 
-    i8257_dma_init(isa_bus, 0);
+    i8257_dma_init(OBJECT(d), isa_bus, 0);
 
     /* RTC */
     qdev_prop_set_int32(DEVICE(&lpc->rtc), "base_year", 2000);

hw/isa/piix.c

@@ -336,7 +336,7 @@ static void pci_piix_realize(PCIDevice *dev, const char *uhci_type,
         i8254_pit_init(isa_bus, 0x40, 0, NULL);
     }
 
-    i8257_dma_init(isa_bus, 0);
+    i8257_dma_init(OBJECT(dev), isa_bus, 0);
 
     /* RTC */
     qdev_prop_set_int32(DEVICE(&d->rtc), "base_year", 2000);

hw/isa/vt82c686.c

@@ -731,7 +731,7 @@ static void via_isa_realize(PCIDevice *d, Error **errp)
     s->isa_irqs_in = i8259_init(isa_bus, *isa_irq);
     isa_bus_register_input_irqs(isa_bus, s->isa_irqs_in);
     i8254_pit_init(isa_bus, 0x40, 0, NULL);
-    i8257_dma_init(isa_bus, 0);
+    i8257_dma_init(OBJECT(d), isa_bus, 0);
 
     /* RTC */
     qdev_prop_set_int32(DEVICE(&s->rtc), "base_year", 2000);

hw/mips/jazz.c

@@ -289,7 +289,7 @@ static void mips_jazz_init(MachineState *machine,
     /* ISA devices */
     i8259 = i8259_init(isa_bus, env->irq[4]);
     isa_bus_register_input_irqs(isa_bus, i8259);
-    i8257_dma_init(isa_bus, 0);
+    i8257_dma_init(OBJECT(rc4030), isa_bus, 0);
     pit = i8254_pit_init(isa_bus, 0x40, 0, NULL);
     pcspk = isa_new(TYPE_PC_SPEAKER);
     object_property_set_link(OBJECT(pcspk), "pit", OBJECT(pit), &error_fatal);

include/hw/dma/i8257.h

@@ -45,6 +45,6 @@ struct I8257State {
     PortioList portio_pageh;
 };
 
-void i8257_dma_init(ISABus *bus, bool high_page_enable);
+void i8257_dma_init(Object *parent, ISABus *bus, bool high_page_enable);
 
 #endif