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| author | Saravana Kannan <saravanak@google.com> | 2021-01-21 14:57:12 -0800 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2021-01-26 09:22:18 +0100 |
| commit | 4104ca776ba38d81bd6610256d3b0d7e6a058067 (patch) | |
| tree | d820e094befd4408df697f33f8a4a00fc018ddf6 /drivers/of/property.c | |
| parent | e13f5b7a130f7b6d4d34be27a87393890b5ee2ba (diff) | |
| download | lwn-4104ca776ba38d81bd6610256d3b0d7e6a058067.tar.gz lwn-4104ca776ba38d81bd6610256d3b0d7e6a058067.zip | |
of: property: Add fw_devlink support for interrupts
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>
Diffstat (limited to 'drivers/of/property.c')
| -rw-r--r-- | drivers/of/property.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/of/property.c b/drivers/of/property.c index b2ea1951d937..6287c6d60bb7 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> @@ -1293,6 +1294,15 @@ 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, }, @@ -1319,6 +1329,7 @@ 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, }, |