[PATCH 1/5] irqchip/atmel-aic5: add support for sam9x60 rtt fixup

Claudiu Beznea
2020-04-10T16:27:39Z

Add support for SAM9X60 RTT fixup.

Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
---
drivers/irqchip/irq-atmel-aic-common.c | 36 +++++++++++++++++++++-------------
drivers/irqchip/irq-atmel-aic5.c | 8 +++++++-
2 files changed, 29 insertions(+), 15 deletions(-)

diff --git a/drivers/irqchip/irq-atmel-aic-common.c b/drivers/irqchip/irq-atmel-aic-common.c
index 072bd227b6c6..e8681133162b 100644
--- a/drivers/irqchip/irq-atmel-aic-common.c
+++ b/drivers/irqchip/irq-atmel-aic-common.c
@@ -169,21 +169,29 @@ void __init aic_common_rtt_irq_fixup(void)
{
struct device_node *np;
void __iomem *regs;
+ static const struct of_device_id aic_rtt_fixup_ids[] = {
+ { .compatible = "atmel,at91sam9260-rtt", },
+ { .compatible = "microchip,sam9x60-rtt", },
+ };
+ int i;

- /*
- * The at91sam9263 SoC has 2 instances of the RTT block, hence we
- * iterate over the DT to find each occurrence.
- */
- for_each_compatible_node(np, NULL, "atmel,at91sam9260-rtt") {
- regs = of_iomap(np, 0);
- if (!regs)
- continue;
-
- writel(readl(regs + AT91_RTT_MR) &
- ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN),
- regs + AT91_RTT_MR);
-
- iounmap(regs);
+ for (i = 0; i < ARRAY_SIZE(aic_rtt_fixup_ids); i++) {
+ /*
+ * The at91sam9263 SoC has 2 instances of the RTT block, hence
+ * we iterate over the DT to find each occurrence.
+ */
+ for_each_compatible_node(np, NULL,
+ aic_rtt_fixup_ids[i].compatible) {
+ regs = of_iomap(np, 0);
+ if (!regs)
+ continue;
+
+ writel(readl(regs + AT91_RTT_MR) &
+ ~(AT91_RTT_ALMIEN | AT91_RTT_RTTINCIEN),
+ regs + AT91_RTT_MR);
+
+ iounmap(regs);
+ }
}
}

diff --git a/drivers/irqchip/irq-atmel-aic5.c b/drivers/irqchip/irq-atmel-aic5.c
index 29333497ba10..74a66cd05553 100644
--- a/drivers/irqchip/irq-atmel-aic5.c
+++ b/drivers/irqchip/irq-atmel-aic5.c
@@ -310,10 +310,16 @@ static void __init sama5d3_aic_irq_fixup(void)
aic_common_rtc_irq_fixup();
}

+static void __init sam9x60_aic_irq_fixup(void)
+{
+ aic_common_rtc_irq_fixup();
+ aic_common_rtt_irq_fixup();
+}
+
static const struct of_device_id aic5_irq_fixups[] __initconst = {
{ .compatible = "atmel,sama5d3", .data = sama5d3_aic_irq_fixup },
{ .compatible = "atmel,sama5d4", .data = sama5d3_aic_irq_fixup },
- { .compatible = "microchip,sam9x60", .data = sama5d3_aic_irq_fixup },
+ { .compatible = "microchip,sam9x60", .data = sam9x60_aic_irq_fixup },
{ /* sentinel */ },
};

--
2.7.4