[irqchip: irq/irqchip-next] irqchip/ocelot: Add support for Serval platforms

[irqchip-bot for Gregory CLEMENT]

The following commit has been merged into the irq/irqchip-next branch of irqchip:

Commit-ID:     7efdfbd15a21788de8c0743590e777f151a3031b
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/7efdfbd15a21788de8c0743590e777f151a3031b
Author:        Gregory CLEMENT <gregory.clement@xxxxxxxxxxx>
AuthorDate:    Wed, 25 Nov 2020 11:32:05 +01:00
Committer:     Marc Zyngier <maz@xxxxxxxxxx>
CommitterDate: Fri, 11 Dec 2020 14:47:49 

irqchip/ocelot: Add support for Serval platforms

This patch extends irqchip driver for ocelot to be used with an other
vcoreiii base platform: Serval.

Based on a larger patch from Lars Povlsen <lars.povlsen@xxxxxxxxxxxxx>

Signed-off-by: Gregory CLEMENT <gregory.clement@xxxxxxxxxxx>
Signed-off-by: Marc Zyngier <maz@xxxxxxxxxx>
Acked-by: Alexandre Belloni <alexandre.belloni@xxxxxxxxxxx>
Link: https://lore.kernel.org/r/20201125103206.136498-6-gregory.clement@xxxxxxxxxxx
---
 drivers/irqchip/irq-mscc-ocelot.c | 19 +++++++++++++++++++
 1 file changed, 19 insertions(+)

diff --git a/drivers/irqchip/irq-mscc-ocelot.c b/drivers/irqchip/irq-mscc-ocelot.c
index 496f955..da5a0ad 100644
--- a/drivers/irqchip/irq-mscc-ocelot.c
+++ b/drivers/irqchip/irq-mscc-ocelot.c
@@ -41,6 +41,17 @@ static struct chip_props ocelot_props = {
 	.n_irq			= 24,
 };
 
+static struct chip_props serval_props = {
+	.flags			= FLAGS_HAS_TRIGGER,
+	.reg_off_sticky		= 0xc,
+	.reg_off_ena		= 0x14,
+	.reg_off_ena_clr	= 0x18,
+	.reg_off_ena_set	= 0x1c,
+	.reg_off_ident		= 0x20,
+	.reg_off_trigger	= 0x4,
+	.n_irq			= 24,
+};
+
 static struct chip_props luton_props = {
 	.flags			= FLAGS_NEED_INIT_ENABLE,
 	.reg_off_sticky		= 0,
@@ -171,6 +182,14 @@ static int __init ocelot_irq_init(struct device_node *node,
 
 IRQCHIP_DECLARE(ocelot_icpu, "mscc,ocelot-icpu-intr", ocelot_irq_init);
 
+static int __init serval_irq_init(struct device_node *node,
+				  struct device_node *parent)
+{
+	return vcoreiii_irq_init(node, parent, &serval_props);
+}
+
+IRQCHIP_DECLARE(serval_icpu, "mscc,serval-icpu-intr", serval_irq_init);
+
 static int __init luton_irq_init(struct device_node *node,
 				 struct device_node *parent)
 {