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of: property: Add fw_devlink support for interrupts

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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>
Reviewed-by: Rob Herring <robh@kernel.org>
Reviewed-by: Thierry Reding <treding@nvidia.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Saravana Kannan <saravanak@google.com>
Link: https://lore.kernel.org/r/20210121225712.1118239-3-saravanak@google.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Saravana Kannan 2021-01-21 14:57:12 -08:00 committed by Greg Kroah-Hartman
parent e13f5b7a13
commit 4104ca776b
1 changed files with 11 additions and 0 deletions
repo.diff.show_diff_stats Download patch file Download diff file Expand all files Collapse all files

11
drivers/of/property.c
View file

@ -24,6 +24,7 @@
#include <linux/of.h> #include <linux/of.h>
#include <linux/of_device.h> #include <linux/of_device.h>
#include <linux/of_graph.h> #include <linux/of_graph.h>
#include <linux/of_irq.h>
#include <linux/string.h> #include <linux/string.h>
#include <linux/moduleparam.h> #include <linux/moduleparam.h>
@ -1293,6 +1294,15 @@ static struct device_node *parse_gpio_compat(struct device_node *np,
return sup_args.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[] = { static const struct supplier_bindings of_supplier_bindings[] = {
{ .parse_prop = parse_clocks, }, { .parse_prop = parse_clocks, },
{ .parse_prop = parse_interconnects, }, { .parse_prop = parse_interconnects, },
@ -1319,6 +1329,7 @@ static const struct supplier_bindings of_supplier_bindings[] = {
{ .parse_prop = parse_pinctrl7, }, { .parse_prop = parse_pinctrl7, },
{ .parse_prop = parse_pinctrl8, }, { .parse_prop = parse_pinctrl8, },
{ .parse_prop = parse_gpio_compat, }, { .parse_prop = parse_gpio_compat, },
{ .parse_prop = parse_interrupts, },
{ .parse_prop = parse_regulators, }, { .parse_prop = parse_regulators, },
{ .parse_prop = parse_gpio, }, { .parse_prop = parse_gpio, },
{ .parse_prop = parse_gpios, }, { .parse_prop = parse_gpios, },