From 1f28aefc539c63c3dc6e53986a34ce8e0e4665b6 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= Date: Sat, 15 May 2021 21:43:44 +0200 Subject: of: property: fw_devlink: Support allwinner,sram links allwinner,sram property points to a node representing section of SRAM, which is implemented by its ancestor (syscon), so we link to the parent of parent of the actual SRAM section node that the link points to. Signed-off-by: Ondrej Jirman --- drivers/of/property.c | 22 ++++++++++++++++++++++ 1 file changed, 22 insertions(+) diff --git a/drivers/of/property.c b/drivers/of/property.c index c1feb631e383..934468f306d2 100644 --- a/drivers/of/property.c +++ b/drivers/of/property.c @@ -1488,6 +1488,27 @@ static struct device_node *parse_remote_endpoint(struct device_node *np, return of_graph_get_remote_port_parent(np); } +static struct device_node *parse_allwinner_sram(struct device_node *np, + const char *prop_name, int index) +{ + struct device_node *sram_node; + + if (!IS_ENABLED(CONFIG_SUNXI_SRAM)) + return NULL; + + if (strcmp(prop_name, "allwinner,sram")) + return NULL; + + if (index > 0) + return NULL; + + sram_node = of_parse_phandle(np, prop_name, 0); + sram_node = of_get_parent(sram_node); + sram_node = of_get_parent(sram_node); + + return sram_node; +} + static const struct supplier_bindings of_supplier_bindings[] = { { .parse_prop = parse_clocks, }, { .parse_prop = parse_interconnects, }, @@ -1535,6 +1556,7 @@ static const struct supplier_bindings of_supplier_bindings[] = { .parse_prop = parse_post_init_providers, .fwlink_flags = FWLINK_FLAG_IGNORE, }, + { .parse_prop = parse_allwinner_sram, }, {} }; -- 2.35.3