So others can find out dependencies of host1x clients, as specified in bindings/gpu/nvidia,tegra20-host1x.txt.
Signed-off-by: Tomeu Vizoso tomeu.vizoso@collabora.com ---
Changes in v2: None
drivers/gpu/host1x/dev.c | 26 ++++++++++++++++++++++++++ 1 file changed, 26 insertions(+)
diff --git a/drivers/gpu/host1x/dev.c b/drivers/gpu/host1x/dev.c index 53d3d1d..5bb10b8 100644 --- a/drivers/gpu/host1x/dev.c +++ b/drivers/gpu/host1x/dev.c @@ -212,6 +212,29 @@ static struct platform_driver tegra_host1x_driver = { .remove = host1x_remove, };
+static void add_dependency(struct fwnode_handle *fwnode, + const char *property, + struct list_head *deps) +{ + struct device_node *np; + + np = of_parse_phandle(to_of_node(fwnode), property, 0); + if (!np) + return; + + fwnode_add_dependency(&np->fwnode, deps); +} + +static void host1x_get_dependencies(struct fwnode_handle *fwnode, + struct list_head *deps) +{ + add_dependency(fwnode, "nvidia,dpaux", deps); + add_dependency(fwnode, "nvidia,panel", deps); + add_dependency(fwnode, "nvidia,ddc-i2c-bus", deps); + add_dependency(fwnode, "nvidia,hpd-gpio", deps); + add_dependency(fwnode, "ddc-i2c-bus", deps); +} + static int __init tegra_host1x_init(void) { int err; @@ -228,6 +251,8 @@ static int __init tegra_host1x_init(void) if (err < 0) goto unregister_host1x;
+ fwnode_add_dependency_parser(host1x_get_dependencies); + return 0;
unregister_host1x: @@ -240,6 +265,7 @@ module_init(tegra_host1x_init);
static void __exit tegra_host1x_exit(void) { + fwnode_remove_dependency_parser(host1x_get_dependencies); platform_driver_unregister(&tegra_mipi_driver); platform_driver_unregister(&tegra_host1x_driver); bus_unregister(&host1x_bus_type);