ssi: change ssi_slave_init to be a realize ops

This enables qemu to handle late inits and report errors. All the SSI
slave routine names were changed accordingly. Code was modified to
handle errors when possible (m25p80 and ssi-sd)

Tested with the m25p80 slave object.

Suggested-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Message-id: 1467138270-32481-2-git-send-email-clg@kaod.org
Reviewed-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>

1 files changed, 2 insertions, 4 deletions

diff --git a/hw/arm/z2.c b/hw/arm/z2.c
index aea895a500..68a92f3184 100644
--- a/hw/arm/z2.c
+++ b/hw/arm/z2.c
@@ -151,14 +151,12 @@ static void z2_lcd_cs(void *opaque, int line, int level)
     z2_lcd->selected = !level;
 }
 
-static int zipit_lcd_init(SSISlave *dev)
+static void zipit_lcd_realize(SSISlave *dev, Error **errp)
 {
     ZipitLCD *z = FROM_SSI_SLAVE(ZipitLCD, dev);
     z->selected = 0;
     z->enabled = 0;
     z->pos = 0;
-
-    return 0;
 }
 
 static VMStateDescription vmstate_zipit_lcd_state = {
@@ -181,7 +179,7 @@ static void zipit_lcd_class_init(ObjectClass *klass, void *data)
     DeviceClass *dc = DEVICE_CLASS(klass);
     SSISlaveClass *k = SSI_SLAVE_CLASS(klass);
 
-    k->init = zipit_lcd_init;
+    k->realize = zipit_lcd_realize;
     k->transfer = zipit_lcd_transfer;
     dc->vmsd = &vmstate_zipit_lcd_state;
 }