linux-kernel - [PATCH v2 10/22] of: property: make #.*-cells optional for simple props

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Date:   Mon,  6 Feb 2023 13:43:44 +0000
From:   Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
To:     gregkh@...uxfoundation.org
Cc:     linux-kernel@...r.kernel.org, Michael Walle <michael@...le.cc>,
        Miquel Raynal <miquel.raynal@...tlin.com>,
        Rob Herring <robh@...nel.org>,
        Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
Subject: [PATCH v2 10/22] of: property: make #.*-cells optional for simple props

From: Michael Walle <michael@...le.cc>

Sometimes, future bindings for phandles will get additional arguments.
Thus the target node of the phandle will need a new #.*-cells property.
To be backwards compatible, this needs to be optional.

Prepare the DEFINE_SIMPLE_PROPS() to handle the cells name as optional.

Signed-off-by: Michael Walle <michael@...le.cc>
Tested-by: Miquel Raynal <miquel.raynal@...tlin.com>
Reviewed-by: Rob Herring <robh@...nel.org>
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@...aro.org>
---
 drivers/of/property.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/of/property.c b/drivers/of/property.c
index 134cfc980b70..989e692e0319 100644
--- a/drivers/of/property.c
+++ b/drivers/of/property.c
@@ -1202,8 +1202,8 @@ static struct device_node *parse_prop_cells(struct device_node *np,
 	if (strcmp(prop_name, list_name))
 		return NULL;
 
-	if (of_parse_phandle_with_args(np, list_name, cells_name, index,
-				       &sup_args))
+	if (__of_parse_phandle_with_args(np, list_name, cells_name, 0, index,
+					 &sup_args))
 		return NULL;
 
 	return sup_args.np;
-- 
2.25.1