linux-kernel - [irqchip: irq/irqchip-next] irqchip/ls-extirq: Add LS1043A, LS1088A external interrupt support

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Date:   Fri, 11 Dec 2020 14:58:45 -0000
From:   "irqchip-bot for Hou Zhiqiang" <tip-bot2@...utronix.de>
To:     linux-kernel@...r.kernel.org
Cc:     Hou Zhiqiang <Zhiqiang.Hou@....com>, Biwen Li <biwen.li@....com>,
        Marc Zyngier <maz@...nel.org>, tglx@...utronix.de
Subject: [irqchip: irq/irqchip-next] irqchip/ls-extirq: Add LS1043A, LS1088A
 external interrupt support

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

Commit-ID:     b16a1caf4686895427c810219d4b2f796e676160
Gitweb:        https://git.kernel.org/pub/scm/linux/kernel/git/maz/arm-platforms/b16a1caf4686895427c810219d4b2f796e676160
Author:        Hou Zhiqiang <Zhiqiang.Hou@....com>
AuthorDate:    Mon, 30 Nov 2020 18:15:05 +08:00
Committer:     Marc Zyngier <maz@...nel.org>
CommitterDate: Fri, 11 Dec 2020 14:43:16 

irqchip/ls-extirq: Add LS1043A, LS1088A external interrupt support

Add an new IRQ chip declaration for LS1043A and LS1088A, and cleanup
the use of the "bit_reverse" property, now gated on the Soc type.

Signed-off-by: Hou Zhiqiang <Zhiqiang.Hou@....com>
Signed-off-by: Biwen Li <biwen.li@....com>
Signed-off-by: Marc Zyngier <maz@...nel.org>
Link: https://lore.kernel.org/r/20201130101515.27431-1-biwen.li@oss.nxp.com
---
 drivers/irqchip/irq-ls-extirq.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/irqchip/irq-ls-extirq.c b/drivers/irqchip/irq-ls-extirq.c
index 4d1179f..f94f974 100644
--- a/drivers/irqchip/irq-ls-extirq.c
+++ b/drivers/irqchip/irq-ls-extirq.c
@@ -18,7 +18,7 @@
 struct ls_extirq_data {
 	struct regmap		*syscon;
 	u32			intpcr;
-	bool			bit_reverse;
+	bool			is_ls1021a_or_ls1043a;
 	u32			nirq;
 	struct irq_fwspec	map[MAXIRQ];
 };
@@ -30,7 +30,7 @@ ls_extirq_set_type(struct irq_data *data, unsigned int type)
 	irq_hw_number_t hwirq = data->hwirq;
 	u32 value, mask;
 
-	if (priv->bit_reverse)
+	if (priv->is_ls1021a_or_ls1043a)
 		mask = 1U << (31 - hwirq);
 	else
 		mask = 1U << hwirq;
@@ -174,14 +174,8 @@ ls_extirq_of_init(struct device_node *node, struct device_node *parent)
 	if (ret)
 		goto out;
 
-	if (of_device_is_compatible(node, "fsl,ls1021a-extirq")) {
-		u32 revcr;
-
-		ret = regmap_read(priv->syscon, LS1021A_SCFGREVCR, &revcr);
-		if (ret)
-			goto out;
-		priv->bit_reverse = (revcr != 0);
-	}
+	priv->is_ls1021a_or_ls1043a = of_device_is_compatible(node, "fsl,ls1021a-extirq") ||
+				      of_device_is_compatible(node, "fsl,ls1043a-extirq");
 
 	domain = irq_domain_add_hierarchy(parent_domain, 0, priv->nirq, node,
 					  &extirq_domain_ops, priv);
@@ -195,3 +189,5 @@ out:
 }
 
 IRQCHIP_DECLARE(ls1021a_extirq, "fsl,ls1021a-extirq", ls_extirq_of_init);
+IRQCHIP_DECLARE(ls1043a_extirq, "fsl,ls1043a-extirq", ls_extirq_of_init);
+IRQCHIP_DECLARE(ls1088a_extirq, "fsl,ls1088a-extirq", ls_extirq_of_init);