diff --git a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.yaml b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.yaml
index e84e4f33b358..3d06db98e978 100644
--- a/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.yaml
+++ b/Documentation/devicetree/bindings/interrupt-controller/amlogic,meson-gpio-intc.yaml
@@ -35,6 +35,7 @@ properties:
               - amlogic,meson-sm1-gpio-intc
               - amlogic,meson-a1-gpio-intc
               - amlogic,meson-s4-gpio-intc
+              - amlogic,c3-gpio-intc
           - const: amlogic,meson-gpio-intc
 
   reg:
diff --git a/drivers/irqchip/irq-bcm6345-l1.c b/drivers/irqchip/irq-bcm6345-l1.c
index 6341c0167c4a..9745a119d0e6 100644
--- a/drivers/irqchip/irq-bcm6345-l1.c
+++ b/drivers/irqchip/irq-bcm6345-l1.c
@@ -60,7 +60,6 @@
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
-#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/smp.h>
diff --git a/drivers/irqchip/irq-bcm7038-l1.c b/drivers/irqchip/irq-bcm7038-l1.c
index a62b96237b82..24ca1d656adc 100644
--- a/drivers/irqchip/irq-bcm7038-l1.c
+++ b/drivers/irqchip/irq-bcm7038-l1.c
@@ -20,7 +20,6 @@
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
-#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/smp.h>
diff --git a/drivers/irqchip/irq-brcmstb-l2.c b/drivers/irqchip/irq-brcmstb-l2.c
index 091b0fe7e324..5559c943f03f 100644
--- a/drivers/irqchip/irq-brcmstb-l2.c
+++ b/drivers/irqchip/irq-brcmstb-l2.c
@@ -15,7 +15,6 @@
 #include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
-#include <linux/of_platform.h>
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/io.h>
diff --git a/drivers/irqchip/irq-gic-pm.c b/drivers/irqchip/irq-gic-pm.c
index 3989d16f997b..a275a8071a25 100644
--- a/drivers/irqchip/irq-gic-pm.c
+++ b/drivers/irqchip/irq-gic-pm.c
@@ -4,7 +4,7 @@
  */
 #include <linux/module.h>
 #include <linux/clk.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/irqchip/arm-gic.h>
 #include <linux/platform_device.h>
diff --git a/drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c b/drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c
index 634263dfd7b5..8e87fc35f8aa 100644
--- a/drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c
+++ b/drivers/irqchip/irq-gic-v3-its-fsl-mc-msi.c
@@ -9,8 +9,6 @@
 
 #include <linux/acpi.h>
 #include <linux/acpi_iort.h>
-#include <linux/of_device.h>
-#include <linux/of_address.h>
 #include <linux/irq.h>
 #include <linux/msi.h>
 #include <linux/of.h>
diff --git a/drivers/irqchip/irq-i8259.c b/drivers/irqchip/irq-i8259.c
index b70ce0d3c092..115bdcffab24 100644
--- a/drivers/irqchip/irq-i8259.c
+++ b/drivers/irqchip/irq-i8259.c
@@ -340,7 +340,7 @@ static void i8259_irq_dispatch(struct irq_desc *desc)
 	generic_handle_domain_irq(domain, hwirq);
 }
 
-int __init i8259_of_init(struct device_node *node, struct device_node *parent)
+static int __init i8259_of_init(struct device_node *node, struct device_node *parent)
 {
 	struct irq_domain *domain;
 	unsigned int parent_irq;
diff --git a/drivers/irqchip/irq-imx-intmux.c b/drivers/irqchip/irq-imx-intmux.c
index 80aaea82468a..6d9a08238c9d 100644
--- a/drivers/irqchip/irq-imx-intmux.c
+++ b/drivers/irqchip/irq-imx-intmux.c
@@ -50,8 +50,9 @@
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
 #include <linux/kernel.h>
+#include <linux/mod_devicetable.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/spinlock.h>
 #include <linux/pm_runtime.h>
 
diff --git a/drivers/irqchip/irq-imx-irqsteer.c b/drivers/irqchip/irq-imx-irqsteer.c
index 96230a04ec23..bd9543314539 100644
--- a/drivers/irqchip/irq-imx-irqsteer.c
+++ b/drivers/irqchip/irq-imx-irqsteer.c
@@ -10,8 +10,9 @@
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
 #include <linux/kernel.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/spinlock.h>
 
diff --git a/drivers/irqchip/irq-imx-mu-msi.c b/drivers/irqchip/irq-imx-mu-msi.c
index 229039eda1b1..90d41c1407ac 100644
--- a/drivers/irqchip/irq-imx-mu-msi.c
+++ b/drivers/irqchip/irq-imx-mu-msi.c
@@ -339,8 +339,8 @@ static int __init imx_mu_of_init(struct device_node *dn,
 	msi_data->msiir_addr = res->start + msi_data->cfg->xTR;
 
 	irq = platform_get_irq(pdev, 0);
-	if (irq <= 0)
-		return -ENODEV;
+	if (irq < 0)
+		return irq;
 
 	platform_set_drvdata(pdev, msi_data);
 
diff --git a/drivers/irqchip/irq-keystone.c b/drivers/irqchip/irq-keystone.c
index ba9792e60329..a36396db4b08 100644
--- a/drivers/irqchip/irq-keystone.c
+++ b/drivers/irqchip/irq-keystone.c
@@ -15,7 +15,7 @@
 #include <linux/irqdomain.h>
 #include <linux/irqchip.h>
 #include <linux/of.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/mfd/syscon.h>
 #include <linux/regmap.h>
 
diff --git a/drivers/irqchip/irq-loongson-eiointc.c b/drivers/irqchip/irq-loongson-eiointc.c
index 92d8aa28bdf5..1623cd779175 100644
--- a/drivers/irqchip/irq-loongson-eiointc.c
+++ b/drivers/irqchip/irq-loongson-eiointc.c
@@ -144,7 +144,7 @@ static int eiointc_router_init(unsigned int cpu)
 	int i, bit;
 	uint32_t data;
 	uint32_t node = cpu_to_eio_node(cpu);
-	uint32_t index = eiointc_index(node);
+	int index = eiointc_index(node);
 
 	if (index < 0) {
 		pr_err("Error: invalid nodemap!\n");
diff --git a/drivers/irqchip/irq-loongson-htvec.c b/drivers/irqchip/irq-loongson-htvec.c
index fc8bf1f5d41b..0bff728b25e3 100644
--- a/drivers/irqchip/irq-loongson-htvec.c
+++ b/drivers/irqchip/irq-loongson-htvec.c
@@ -15,7 +15,6 @@
 #include <linux/platform_device.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
 #include <linux/syscore_ops.h>
 
 /* Registers */
diff --git a/drivers/irqchip/irq-loongson-pch-pic.c b/drivers/irqchip/irq-loongson-pch-pic.c
index 93a71f66efeb..63db8e2172e0 100644
--- a/drivers/irqchip/irq-loongson-pch-pic.c
+++ b/drivers/irqchip/irq-loongson-pch-pic.c
@@ -12,9 +12,9 @@
 #include <linux/irqdomain.h>
 #include <linux/kernel.h>
 #include <linux/platform_device.h>
+#include <linux/of.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
 #include <linux/syscore_ops.h>
 
 /* Registers */
diff --git a/drivers/irqchip/irq-ls-scfg-msi.c b/drivers/irqchip/irq-ls-scfg-msi.c
index f5ba3f9f8415..f31a262fe438 100644
--- a/drivers/irqchip/irq-ls-scfg-msi.c
+++ b/drivers/irqchip/irq-ls-scfg-msi.c
@@ -349,8 +349,7 @@ static int ls_scfg_msi_probe(struct platform_device *pdev)
 
 	msi_data->cfg = (struct ls_scfg_msi_cfg *) match->data;
 
-	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	msi_data->regs = devm_ioremap_resource(&pdev->dev, res);
+	msi_data->regs = devm_platform_get_and_ioremap_resource(pdev, 0, &res);
 	if (IS_ERR(msi_data->regs)) {
 		dev_err(&pdev->dev, "failed to initialize 'regs'\n");
 		return PTR_ERR(msi_data->regs);
diff --git a/drivers/irqchip/irq-madera.c b/drivers/irqchip/irq-madera.c
index 8b81271c823c..3eb1f8cdf674 100644
--- a/drivers/irqchip/irq-madera.c
+++ b/drivers/irqchip/irq-madera.c
@@ -10,12 +10,10 @@
 #include <linux/interrupt.h>
 #include <linux/irq.h>
 #include <linux/irqdomain.h>
+#include <linux/platform_device.h>
 #include <linux/pm_runtime.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
-#include <linux/of.h>
-#include <linux/of_device.h>
-#include <linux/of_irq.h>
 #include <linux/irqchip/irq-madera.h>
 #include <linux/mfd/madera/core.h>
 #include <linux/mfd/madera/pdata.h>
diff --git a/drivers/irqchip/irq-meson-gpio.c b/drivers/irqchip/irq-meson-gpio.c
index 7da18ef95211..f88df39f4129 100644
--- a/drivers/irqchip/irq-meson-gpio.c
+++ b/drivers/irqchip/irq-meson-gpio.c
@@ -150,6 +150,10 @@ static const struct meson_gpio_irq_params s4_params = {
 	INIT_MESON_S4_COMMON_DATA(82)
 };
 
+static const struct meson_gpio_irq_params c3_params = {
+	INIT_MESON_S4_COMMON_DATA(55)
+};
+
 static const struct of_device_id meson_irq_gpio_matches[] __maybe_unused = {
 	{ .compatible = "amlogic,meson8-gpio-intc", .data = &meson8_params },
 	{ .compatible = "amlogic,meson8b-gpio-intc", .data = &meson8b_params },
@@ -160,6 +164,7 @@ static const struct of_device_id meson_irq_gpio_matches[] __maybe_unused = {
 	{ .compatible = "amlogic,meson-sm1-gpio-intc", .data = &sm1_params },
 	{ .compatible = "amlogic,meson-a1-gpio-intc", .data = &a1_params },
 	{ .compatible = "amlogic,meson-s4-gpio-intc", .data = &s4_params },
+	{ .compatible = "amlogic,c3-gpio-intc", .data = &c3_params },
 	{ }
 };
 
diff --git a/drivers/irqchip/irq-mips-gic.c b/drivers/irqchip/irq-mips-gic.c
index 6d5ecc10a870..76253e864f23 100644
--- a/drivers/irqchip/irq-mips-gic.c
+++ b/drivers/irqchip/irq-mips-gic.c
@@ -557,7 +557,7 @@ static int gic_irq_domain_alloc(struct irq_domain *d, unsigned int virq,
 	return gic_irq_domain_map(d, virq, hwirq);
 }
 
-void gic_irq_domain_free(struct irq_domain *d, unsigned int virq,
+static void gic_irq_domain_free(struct irq_domain *d, unsigned int virq,
 			 unsigned int nr_irqs)
 {
 }
diff --git a/drivers/irqchip/irq-mvebu-sei.c b/drivers/irqchip/irq-mvebu-sei.c
index 4ecef6d83777..a48dbe91b036 100644
--- a/drivers/irqchip/irq-mvebu-sei.c
+++ b/drivers/irqchip/irq-mvebu-sei.c
@@ -377,8 +377,7 @@ static int mvebu_sei_probe(struct platform_device *pdev)
 	mutex_init(&sei->cp_msi_lock);
 	raw_spin_lock_init(&sei->mask_lock);
 
-	sei->res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
-	sei->base = devm_ioremap_resource(sei->dev, sei->res);
+	sei->base = devm_platform_get_and_ioremap_resource(pdev, 0, &sei->res);
 	if (IS_ERR(sei->base))
 		return PTR_ERR(sei->base);
 
diff --git a/drivers/irqchip/irq-orion.c b/drivers/irqchip/irq-orion.c
index 17c2c7a07f10..4e4e874e09a8 100644
--- a/drivers/irqchip/irq-orion.c
+++ b/drivers/irqchip/irq-orion.c
@@ -57,8 +57,7 @@ static int __init orion_irq_init(struct device_node *np,
 	struct resource r;
 
 	/* count number of irq chips by valid reg addresses */
-	while (of_address_to_resource(np, num_chips, &r) == 0)
-		num_chips++;
+	num_chips = of_address_count(np);
 
 	orion_irq_domain = irq_domain_add_linear(np,
 				num_chips * ORION_IRQS_PER_CHIP,
diff --git a/drivers/irqchip/irq-pruss-intc.c b/drivers/irqchip/irq-pruss-intc.c
index fa8d89b02ec0..0f64ecb9b1f4 100644
--- a/drivers/irqchip/irq-pruss-intc.c
+++ b/drivers/irqchip/irq-pruss-intc.c
@@ -17,7 +17,7 @@
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 
 /*
@@ -565,8 +565,8 @@ static int pruss_intc_probe(struct platform_device *pdev)
 			continue;
 
 		irq = platform_get_irq_byname(pdev, irq_names[i]);
-		if (irq <= 0) {
-			ret = (irq == 0) ? -EINVAL : irq;
+		if (irq < 0) {
+			ret = irq;
 			goto fail_irq;
 		}
 
diff --git a/drivers/irqchip/irq-qcom-mpm.c b/drivers/irqchip/irq-qcom-mpm.c
index d30614661eea..7124565234a5 100644
--- a/drivers/irqchip/irq-qcom-mpm.c
+++ b/drivers/irqchip/irq-qcom-mpm.c
@@ -14,7 +14,7 @@
 #include <linux/mailbox_client.h>
 #include <linux/module.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
+#include <linux/of_platform.h>
 #include <linux/platform_device.h>
 #include <linux/pm_domain.h>
 #include <linux/slab.h>
diff --git a/drivers/irqchip/irq-renesas-intc-irqpin.c b/drivers/irqchip/irq-renesas-intc-irqpin.c
index 26e4c17a7bf2..fa19585f3dee 100644
--- a/drivers/irqchip/irq-renesas-intc-irqpin.c
+++ b/drivers/irqchip/irq-renesas-intc-irqpin.c
@@ -17,7 +17,6 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/module.h>
-#include <linux/of_device.h>
 #include <linux/pm_runtime.h>
 
 #define INTC_IRQPIN_MAX 8 /* maximum 8 interrupts per driver instance */
diff --git a/drivers/irqchip/irq-st.c b/drivers/irqchip/irq-st.c
index 819a12297b58..de71bb350d57 100644
--- a/drivers/irqchip/irq-st.c
+++ b/drivers/irqchip/irq-st.c
@@ -10,7 +10,7 @@
 #include <dt-bindings/interrupt-controller/irq-st.h>
 #include <linux/err.h>
 #include <linux/mfd/syscon.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/platform_device.h>
 #include <linux/regmap.h>
 #include <linux/slab.h>
diff --git a/drivers/irqchip/irq-stm32-exti.c b/drivers/irqchip/irq-stm32-exti.c
index b5fa76ce5046..d8ba5fba7450 100644
--- a/drivers/irqchip/irq-stm32-exti.c
+++ b/drivers/irqchip/irq-stm32-exti.c
@@ -14,10 +14,11 @@
 #include <linux/irqchip.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/irqdomain.h>
+#include <linux/mod_devicetable.h>
 #include <linux/module.h>
 #include <linux/of_address.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/syscore_ops.h>
 
 #include <dt-bindings/interrupt-controller/arm-gic.h>
diff --git a/drivers/irqchip/irq-sunxi-nmi.c b/drivers/irqchip/irq-sunxi-nmi.c
index 21d49791f855..e760b1278143 100644
--- a/drivers/irqchip/irq-sunxi-nmi.c
+++ b/drivers/irqchip/irq-sunxi-nmi.c
@@ -19,7 +19,6 @@
 #include <linux/irqdomain.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
-#include <linux/of_platform.h>
 #include <linux/irqchip.h>
 #include <linux/irqchip/chained_irq.h>
 
diff --git a/drivers/irqchip/irq-tb10x.c b/drivers/irqchip/irq-tb10x.c
index 8a0e69298e83..680586354d12 100644
--- a/drivers/irqchip/irq-tb10x.c
+++ b/drivers/irqchip/irq-tb10x.c
@@ -13,7 +13,6 @@
 #include <linux/irqchip.h>
 #include <linux/of_irq.h>
 #include <linux/of_address.h>
-#include <linux/of_platform.h>
 #include <linux/io.h>
 #include <linux/slab.h>
 #include <linux/bitops.h>
diff --git a/drivers/irqchip/irq-ti-sci-inta.c b/drivers/irqchip/irq-ti-sci-inta.c
index 7133f9fa6fd9..b83f5cbab123 100644
--- a/drivers/irqchip/irq-ti-sci-inta.c
+++ b/drivers/irqchip/irq-ti-sci-inta.c
@@ -15,9 +15,9 @@
 #include <linux/msi.h>
 #include <linux/module.h>
 #include <linux/moduleparam.h>
-#include <linux/of_address.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
-#include <linux/of_platform.h>
+#include <linux/platform_device.h>
 #include <linux/irqchip/chained_irq.h>
 #include <linux/soc/ti/ti_sci_inta_msi.h>
 #include <linux/soc/ti/ti_sci_protocol.h>
diff --git a/drivers/irqchip/irq-ti-sci-intr.c b/drivers/irqchip/irq-ti-sci-intr.c
index 1186f1e431a3..c027cd9e4a69 100644
--- a/drivers/irqchip/irq-ti-sci-intr.c
+++ b/drivers/irqchip/irq-ti-sci-intr.c
@@ -12,9 +12,9 @@
 #include <linux/io.h>
 #include <linux/irqchip.h>
 #include <linux/irqdomain.h>
-#include <linux/of_platform.h>
-#include <linux/of_address.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
+#include <linux/platform_device.h>
 #include <linux/soc/ti/ti_sci_protocol.h>
 
 /**
diff --git a/drivers/irqchip/irq-uniphier-aidet.c b/drivers/irqchip/irq-uniphier-aidet.c
index 716b1bb88bf2..601f9343d5b3 100644
--- a/drivers/irqchip/irq-uniphier-aidet.c
+++ b/drivers/irqchip/irq-uniphier-aidet.c
@@ -12,7 +12,6 @@
 #include <linux/irqdomain.h>
 #include <linux/kernel.h>
 #include <linux/of.h>
-#include <linux/of_device.h>
 #include <linux/of_irq.h>
 #include <linux/platform_device.h>
 #include <linux/spinlock.h>
diff --git a/drivers/irqchip/irq-xtensa-pic.c b/drivers/irqchip/irq-xtensa-pic.c
index ab12328be5ee..0c18d1f1e264 100644
--- a/drivers/irqchip/irq-xtensa-pic.c
+++ b/drivers/irqchip/irq-xtensa-pic.c
@@ -16,6 +16,7 @@
 #include <linux/irqdomain.h>
 #include <linux/irq.h>
 #include <linux/irqchip.h>
+#include <linux/irqchip/xtensa-pic.h>
 #include <linux/of.h>
 
 unsigned int cached_irq_mask;
diff --git a/drivers/irqchip/irqchip.c b/drivers/irqchip/irqchip.c
index 7899607fbee8..1eeb0d0156ce 100644
--- a/drivers/irqchip/irqchip.c
+++ b/drivers/irqchip/irqchip.c
@@ -10,7 +10,7 @@
 
 #include <linux/acpi.h>
 #include <linux/init.h>
-#include <linux/of_device.h>
+#include <linux/of.h>
 #include <linux/of_irq.h>
 #include <linux/irqchip.h>
 #include <linux/platform_device.h>
diff --git a/drivers/irqchip/qcom-pdc.c b/drivers/irqchip/qcom-pdc.c
index d96916cf6a41..a32c0d28d038 100644
--- a/drivers/irqchip/qcom-pdc.c
+++ b/drivers/irqchip/qcom-pdc.c
@@ -14,7 +14,6 @@
 #include <linux/module.h>
 #include <linux/of.h>
 #include <linux/of_address.h>
-#include <linux/of_device.h>
 #include <linux/of_irq.h>
 #include <linux/soc/qcom/irq.h>
 #include <linux/spinlock.h>