60 lines
1.7 KiB
Diff
60 lines
1.7 KiB
Diff
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From 1bb21b28dbf0ae06ddc87620bea7b4a1dc9a1578 Mon Sep 17 00:00:00 2001
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From: =?UTF-8?q?Ond=C5=99ej=20Jirman?= <megi@xff.cz>
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Date: Sat, 15 May 2021 21:43:44 +0200
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Subject: [PATCH 180/389] of: property: fw_devlink: Support allwinner,sram
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links
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allwinner,sram property points to a node representing section of SRAM,
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which is implemented by its ancestor (syscon), so we link to the
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parent of parent of the actual SRAM section node that the link points
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to.
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Signed-off-by: Ondrej Jirman <megi@xff.cz>
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---
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drivers/of/property.c | 22 ++++++++++++++++++++++
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1 file changed, 22 insertions(+)
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diff --git a/drivers/of/property.c b/drivers/of/property.c
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index 134cfc980b70..1111895070a4 100644
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--- a/drivers/of/property.c
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+++ b/drivers/of/property.c
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@@ -1383,6 +1383,27 @@ static struct device_node *parse_interrupts(struct device_node *np,
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return of_irq_parse_one(np, index, &sup_args) ? NULL : sup_args.np;
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}
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+static struct device_node *parse_allwinner_sram(struct device_node *np,
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+ const char *prop_name, int index)
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+{
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+ struct device_node *sram_node;
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+
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+ if (!IS_ENABLED(CONFIG_SUNXI_SRAM))
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+ return NULL;
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+
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+ if (strcmp(prop_name, "allwinner,sram"))
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+ return NULL;
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+
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+ if (index > 0)
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+ return NULL;
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+
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+ sram_node = of_parse_phandle(np, prop_name, 0);
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+ sram_node = of_get_parent(sram_node);
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+ sram_node = of_get_parent(sram_node);
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+
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+ return sram_node;
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+}
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+
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static const struct supplier_bindings of_supplier_bindings[] = {
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{ .parse_prop = parse_clocks, },
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{ .parse_prop = parse_interconnects, },
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@@ -1417,6 +1438,7 @@ static const struct supplier_bindings of_supplier_bindings[] = {
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{ .parse_prop = parse_regulators, },
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{ .parse_prop = parse_gpio, },
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{ .parse_prop = parse_gpios, },
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+ { .parse_prop = parse_allwinner_sram, },
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{}
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};
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--
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2.35.3
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