linux-kernel - [PATCH] of: property: Fix fw_devlink handling of interrupts/interrupts-extended

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Date:   Mon,  8 Feb 2021 17:04:38 -0800
From:   Saravana Kannan <saravanak@...gle.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Frank Rowand <frowand.list@...il.com>,
        Saravana Kannan <saravanak@...gle.com>,
        Linus Walleij <linus.walleij@...aro.org>,
        Thierry Reding <treding@...dia.com>,
        Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     Marek Szyprowski <m.szyprowski@...sung.com>,
        kernel-team@...roid.com, Rob Herring <robh@...nel.org>,
        devicetree@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH] of: property: Fix fw_devlink handling of interrupts/interrupts-extended

Commit 4104ca776ba3 ("of: property: Add fw_devlink support for interrupts")
was not taking interrupt-map into account. Fix that.

Reported-by: Marek Szyprowski <m.szyprowski@...sung.com>
Fixes: 4104ca776ba3 ("of: property: Add fw_devlink support for interrupts")
Signed-off-by: Saravana Kannan <saravanak@...gle.com>
Tested-by: Marek Szyprowski <m.szyprowski@...sung.com>
---
Greg,

This needs to go into driver-core as the "Fixes" commit is only in
driver-core if I'm not mistaken.

-Saravana

 drivers/of/property.c | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 962109082df1..79b68519fe30 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1248,8 +1248,6 @@ DEFINE_SIMPLE_PROP(dmas, "dmas", "#dma-cells")
 DEFINE_SIMPLE_PROP(power_domains, "power-domains", "#power-domain-cells")
 DEFINE_SIMPLE_PROP(hwlocks, "hwlocks", "#hwlock-cells")
 DEFINE_SIMPLE_PROP(extcon, "extcon", NULL)
-DEFINE_SIMPLE_PROP(interrupts_extended, "interrupts-extended",
-					"#interrupt-cells")
 DEFINE_SIMPLE_PROP(nvmem_cells, "nvmem-cells", NULL)
 DEFINE_SIMPLE_PROP(phys, "phys", "#phy-cells")
 DEFINE_SIMPLE_PROP(wakeup_parent, "wakeup-parent", NULL)
@@ -1300,10 +1298,13 @@ static struct device_node *parse_gpio_compat(struct device_node *np,
 static struct device_node *parse_interrupts(struct device_node *np,
 					    const char *prop_name, int index)
 {
-	if (strcmp(prop_name, "interrupts") || index)
+	struct of_phandle_args sup_args;
+
+	if (strcmp(prop_name, "interrupts") &&
+	    strcmp(prop_name, "interrupts-extended"))
 		return NULL;
 
-	return of_irq_find_parent(np);
+	return of_irq_parse_one(np, index, &sup_args) ? NULL : sup_args.np;
 }
 
 static const struct supplier_bindings of_supplier_bindings[] = {
@@ -1318,7 +1319,6 @@ static const struct supplier_bindings of_supplier_bindings[] = {
 	{ .parse_prop = parse_power_domains, },
 	{ .parse_prop = parse_hwlocks, },
 	{ .parse_prop = parse_extcon, },
-	{ .parse_prop = parse_interrupts_extended, },
 	{ .parse_prop = parse_nvmem_cells, },
 	{ .parse_prop = parse_phys, },
 	{ .parse_prop = parse_wakeup_parent, },
-- 
2.30.0.478.g8a0d178c01-goog