irqchip/irq-mvebu-icu: Fix access to msi_data from irq_domain::host_data

mvebu_icu_translate() incorrectly casts irq_domain::host_data directly to
mvebu_icu_msi_data. However, host_data actually points to a structure of
type msi_domain_info.

This incorrect cast causes issues such as the thermal sensors of the
CP110 platform malfunctioning. Specifically, the translation of the SEI
interrupt to IRQ_TYPE_EDGE_RISING fails, preventing proper interrupt
handling. The following error was observed:

  genirq: Setting trigger mode 4 for irq 85 failed (irq_chip_set_type_parent+0x0/0x34)
  armada_thermal f2400000.system-controller:thermal-sensor@70: Cannot request threaded IRQ 85

Resolve the issue by first casting host_data to msi_domain_info and then
accessing mvebu_icu_msi_data through msi_domain_info::chip_data.

Fixes: d929e4d ("irqchip/irq-mvebu-icu: Prepare for real per device MSI")
Signed-off-by: Stefan Eichenberger <[email protected]>
Signed-off-by: Thomas Gleixner <[email protected]>
Cc: [email protected]
Link: https://lore.kernel.org/all/[email protected]

Author: eichenberger

drivers/irqchip/irq-mvebu-icu.c

@@ -68,7 +68,8 @@ static int mvebu_icu_translate(struct irq_domain *d, struct irq_fwspec *fwspec,
 			       unsigned long *hwirq, unsigned int *type)
 {
 	unsigned int param_count = static_branch_unlikely(&legacy_bindings) ? 3 : 2;
-	struct mvebu_icu_msi_data *msi_data = d->host_data;
+	struct msi_domain_info *info = d->host_data;
+	struct mvebu_icu_msi_data *msi_data = info->chip_data;
 	struct mvebu_icu *icu = msi_data->icu;
 
 	/* Check the count of the parameters in dt */