[PATCH v1 2/2] of: property: Add fw_devlink support for interrupts
From: Saravana Kannan <hidden>
Date: 2021-01-20 08:19:26
Also in:
linux-tegra, lkml
Subsystem:
open firmware and flattened device tree, the rest · Maintainers:
Rob Herring, Saravana Kannan, Linus Torvalds
This allows fw_devlink to create device links between consumers of an interrupt and the supplier of the interrupt. Cc: Marc Zyngier <maz@kernel.org> Cc: Kevin Hilman <khilman@baylibre.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by: Saravana Kannan <redacted> --- drivers/of/property.c | 11 +++++++++++ 1 file changed, 11 insertions(+)
diff --git a/drivers/of/property.c b/drivers/of/property.c
index 0b256ce9d7d5..9dd9cc50e65a 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c@@ -24,6 +24,7 @@ #include <linux/of.h> #include <linux/of_device.h> #include <linux/of_graph.h> +#include <linux/of_irq.h> #include <linux/string.h> #include <linux/moduleparam.h>
@@ -1289,6 +1290,15 @@ static struct device_node *parse_gpio_compat(struct device_node *np, return sup_args.np; } +static struct device_node *parse_interrupts(struct device_node *np, + const char *prop_name, int index) +{ + if (strcmp(prop_name, "interrupts") || index) + return NULL; + + return of_irq_find_parent(np); +} + static const struct supplier_bindings of_supplier_bindings[] = { { .parse_prop = parse_clocks, }, { .parse_prop = parse_interconnects, },
@@ -1315,6 +1325,7 @@ static const struct supplier_bindings of_supplier_bindings[] = { { .parse_prop = parse_pinctrl7, }, { .parse_prop = parse_pinctrl8, }, { .parse_prop = parse_gpio_compat, }, + { .parse_prop = parse_interrupts, }, { .parse_prop = parse_regulators, }, { .parse_prop = parse_gpio, }, { .parse_prop = parse_gpios, },
--
2.30.0.284.gd98b1dd5eaa7-goog