irqchip/gic: Move PM device over to irq domain

Move the reference to the GIC device over to the irq domain.
This allows for some localised cleanup.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Tested-by: Geert Uytterhoeven <geert+renesas@glider.be>
Acked-by: Bartosz Golaszewski <brgl@bgdev.pl>
Link: https://lore.kernel.org/r/20220201120310.878267-3-maz@kernel.org

diff --git a/drivers/irqchip/irq-gic.c b/drivers/irqchip/irq-gic.c
index b8bb46c65a97a35747b3bc2be601ba57e73e79ed..fb741b42ca2d28e6ca1567eb1b72dae311cf3d7a 100644 (file)
--- a/drivers/irqchip/irq-gic.c
+++ b/drivers/irqchip/irq-gic.c
@@ -1127,13 +1127,12 @@ static const struct irq_domain_ops gic_irq_domain_ops = {
        .unmap = gic_irq_domain_unmap,
 };
 
-static void gic_init_chip(struct gic_chip_data *gic, struct device *dev,
-                         const char *name, bool use_eoimode1)
+static void gic_init_chip(struct gic_chip_data *gic, const char *name,
+                         bool use_eoimode1)
 {
        /* Initialize irq_chip */
        gic->chip = gic_chip;
        gic->chip.name = name;
-       gic->chip.parent_device = dev;
 
        if (use_eoimode1) {
                gic->chip.irq_mask = gic_eoimode1_mask_irq;
@@ -1268,10 +1267,10 @@ static int __init __gic_init_bases(struct gic_chip_data *gic,
 
        if (static_branch_likely(&supports_deactivate_key) && gic == &gic_data[0]) {
                name = kasprintf(GFP_KERNEL, "GICv2");
-               gic_init_chip(gic, NULL, name, true);
+               gic_init_chip(gic, name, true);
        } else {
                name = kasprintf(GFP_KERNEL, "GIC-%d", (int)(gic-&gic_data[0]));
-               gic_init_chip(gic, NULL, name, false);
+               gic_init_chip(gic, name, false);
        }
 
        ret = gic_init_bases(gic, handle);
@@ -1460,7 +1459,7 @@ int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq)
        if (!*gic)
                return -ENOMEM;
 
-       gic_init_chip(*gic, dev, dev->of_node->name, false);
+       gic_init_chip(*gic, dev->of_node->name, false);
 
        ret = gic_of_setup(*gic, dev->of_node);
        if (ret)
@@ -1472,6 +1471,7 @@ int gic_of_init_child(struct device *dev, struct gic_chip_data **gic, int irq)
                return ret;
        }
 
+       irq_domain_set_pm_device((*gic)->domain, dev);
        irq_set_chained_handler_and_data(irq, gic_handle_cascade_irq, *gic);
 
        return 0;