Commit-ID: ed01edc0ab6fec0ff675a6b16ccf7069bde98769
Gitweb: https://git.kernel.org/tip/ed01edc0ab6fec0ff675a6b16ccf7069bde98769
Author: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
AuthorDate: Wed, 5 Dec 2018 23:31:25 -0800
Committer: Marc Zyngier <marc.zyngier@xxxxxxx>
CommitDate: Thu, 13 Dec 2018 09:35:55 +0000
irqchip/irq-imx-gpcv2: Add support for i.MX8MQ
Add code needed to support i.MX8MQ.
Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Cc: Jason Cooper <jason@xxxxxxxxxxxxxx>
Cc: Marc Zyngier <marc.zyngier@xxxxxxx>
Cc: cphealy@xxxxxxxxx
Cc: l.stach@xxxxxxxxxxxxxx
Cc: Leonard Crestez <leonard.crestez@xxxxxxx>
Cc: "A.s. Dong" <aisheng.dong@xxxxxxx>
Cc: Richard Zhu <hongxing.zhu@xxxxxxx>
Cc: linux-imx@xxxxxxx
Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
Cc: linux-kernel@xxxxxxxxxxxxxxx
Signed-off-by: Andrey Smirnov <andrew.smirnov@xxxxxxxxx>
Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
---
drivers/irqchip/irq-imx-gpcv2.c | 31 +++++++++++++++++++++++++++++--
1 file changed, 29 insertions(+), 2 deletions(-)
diff --git a/drivers/irqchip/irq-imx-gpcv2.c b/drivers/irqchip/irq-imx-gpcv2.c
index c2b2b3128ddd..17a2dad2d4c2 100644
--- a/drivers/irqchip/irq-imx-gpcv2.c
+++ b/drivers/irqchip/irq-imx-gpcv2.c
@@ -17,6 +17,9 @@
#define GPC_IMR1_CORE0 0x30
#define GPC_IMR1_CORE1 0x40
+#define GPC_IMR1_CORE2 0x1c0
+#define GPC_IMR1_CORE3 0x1d0
+
struct gpcv2_irqchip_data {
struct raw_spinlock rlock;
@@ -192,11 +195,19 @@ static const struct irq_domain_ops gpcv2_irqchip_data_domain_ops = {
.free = irq_domain_free_irqs_common,
};
+static const struct of_device_id gpcv2_of_match[] = {
+ { .compatible = "fsl,imx7d-gpc", .data = (const void *) 2 },
+ { .compatible = "fsl,imx8mq-gpc", .data = (const void *) 4 },
+ { /* END */ }
+};
+
static int __init imx_gpcv2_irqchip_init(struct device_node *node,
struct device_node *parent)
{
struct irq_domain *parent_domain, *domain;
struct gpcv2_irqchip_data *cd;
+ const struct of_device_id *id;
+ unsigned long core_num;
int i;
if (!parent) {
@@ -204,6 +215,14 @@ static int __init imx_gpcv2_irqchip_init(struct device_node *node,
return -ENODEV;
}
+ id = of_match_node(gpcv2_of_match, node);
+ if (!id) {
+ pr_err("%pOF: unknown compatibility string\n", node);
+ return -ENODEV;
+ }
+
+ core_num = (unsigned long)id->data;
+
parent_domain = irq_find_host(parent);
if (!parent_domain) {
pr_err("%pOF: unable to get parent domain\n", node);
@@ -236,8 +255,16 @@ static int __init imx_gpcv2_irqchip_init(struct device_node *node,
/* Initially mask all interrupts */
for (i = 0; i < IMR_NUM; i++) {
- writel_relaxed(~0, cd->gpc_base + GPC_IMR1_CORE0 + i * 4);
- writel_relaxed(~0, cd->gpc_base + GPC_IMR1_CORE1 + i * 4);
+ void __iomem *reg = cd->gpc_base + i * 4;
+
+ switch (core_num) {
+ case 4:
+ writel_relaxed(~0, reg + GPC_IMR1_CORE2);
+ writel_relaxed(~0, reg + GPC_IMR1_CORE3);
+ case 2: /* FALLTHROUGH */
+ writel_relaxed(~0, reg + GPC_IMR1_CORE0);
+ writel_relaxed(~0, reg + GPC_IMR1_CORE1);
+ }
cd->wakeup_sources[i] = ~0;
}
|