platform: Drop irqchip warm init and exit hooks

Now that driver lifecycle is managed from within the SBI irqchip core,
platforms need only to initialize the driver once during cold init.
Remove the remaining platform hooks that are no longer used.

Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Reviewed-by: Anup Patel <anup@brainfault.org>

6 files changed, 13 insertions, 54 deletions

diff --git a/platform/fpga/ariane/platform.c b/platform/fpga/ariane/platform.c
index 720895e..0b4455f 100644
--- a/platform/fpga/ariane/platform.c
+++ b/platform/fpga/ariane/platform.c
@@ -98,19 +98,11 @@ static int ariane_final_init(bool cold_boot)
 }
 
 /*
- * Initialize the ariane interrupt controller for current HART.
+ * Initialize the ariane interrupt controller during cold boot.
  */
-static int ariane_irqchip_init(bool cold_boot)
+static int ariane_irqchip_init(void)
 {
-	int ret;
-
-	if (cold_boot) {
-		ret = plic_cold_irqchip_init(&plic);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
+	return plic_cold_irqchip_init(&plic);
 }
 
 /*
diff --git a/platform/fpga/openpiton/platform.c b/platform/fpga/openpiton/platform.c
index 1c14c10..9f4378a 100644
--- a/platform/fpga/openpiton/platform.c
+++ b/platform/fpga/openpiton/platform.c
@@ -131,19 +131,11 @@ static int openpiton_final_init(bool cold_boot)
 }
 
 /*
- * Initialize the openpiton interrupt controller for current HART.
+ * Initialize the openpiton interrupt controller during cold boot.
  */
-static int openpiton_irqchip_init(bool cold_boot)
+static int openpiton_irqchip_init(void)
 {
-	int ret;
-
-	if (cold_boot) {
-		ret = plic_cold_irqchip_init(&plic);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
+	return plic_cold_irqchip_init(&plic);
 }
 
 /*
diff --git a/platform/generic/platform.c b/platform/generic/platform.c
index 3b20ffb..768b9b6 100644
--- a/platform/generic/platform.c
+++ b/platform/generic/platform.c
@@ -419,7 +419,6 @@ const struct sbi_platform_operations platform_ops = {
 	.extensions_init	= generic_extensions_init,
 	.domains_init		= generic_domains_init,
 	.irqchip_init		= fdt_irqchip_init,
-	.irqchip_exit		= fdt_irqchip_exit,
 	.ipi_init		= fdt_ipi_init,
 	.pmu_init		= generic_pmu_init,
 	.pmu_xlate_to_mhpmevent = generic_pmu_xlate_to_mhpmevent,
diff --git a/platform/kendryte/k210/platform.c b/platform/kendryte/k210/platform.c
index f654325..aff133c 100644
--- a/platform/kendryte/k210/platform.c
+++ b/platform/kendryte/k210/platform.c
@@ -136,17 +136,9 @@ static int k210_final_init(bool cold_boot)
 	return 0;
 }
 
-static int k210_irqchip_init(bool cold_boot)
+static int k210_irqchip_init(void)
 {
-	int rc;
-
-	if (cold_boot) {
-		rc = plic_cold_irqchip_init(&plic);
-		if (rc)
-			return rc;
-	}
-
-	return 0;
+	return plic_cold_irqchip_init(&plic);
 }
 
 static int k210_ipi_init(void)
diff --git a/platform/nuclei/ux600/platform.c b/platform/nuclei/ux600/platform.c
index 7b85f1f..1b67b64 100644
--- a/platform/nuclei/ux600/platform.c
+++ b/platform/nuclei/ux600/platform.c
@@ -190,17 +190,9 @@ static int ux600_final_init(bool cold_boot)
 	return 0;
 }
 
-static int ux600_irqchip_init(bool cold_boot)
+static int ux600_irqchip_init(void)
 {
-	int rc;
-
-	if (cold_boot) {
-		rc = plic_cold_irqchip_init(&plic);
-		if (rc)
-			return rc;
-	}
-
-	return 0;
+	return plic_cold_irqchip_init(&plic);
 }
 
 static int ux600_ipi_init(void)
diff --git a/platform/template/platform.c b/platform/template/platform.c
index c7af31a..bc351bc 100644
--- a/platform/template/platform.c
+++ b/platform/template/platform.c
@@ -87,20 +87,12 @@ static int platform_final_init(bool cold_boot)
 }
 
 /*
- * Initialize the platform interrupt controller for current HART.
+ * Initialize the platform interrupt controller during cold boot.
  */
-static int platform_irqchip_init(bool cold_boot)
+static int platform_irqchip_init(void)
 {
-	int ret;
-
 	/* Example if the generic PLIC driver is used */
-	if (cold_boot) {
-		ret = plic_cold_irqchip_init(&plic);
-		if (ret)
-			return ret;
-	}
-
-	return 0;
+	return plic_cold_irqchip_init(&plic);
 }
 
 /*