lkml.org 
[lkml]   [2022]   [Nov]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] gpiolib: of: Use correct fwnode for DT-probed chips
Date
From: Thierry Reding <treding@nvidia.com>

The OF node store in chip->fwnode is used to explicitly override the FW
node for a GPIO chip. For chips that use the default FW node (i.e. that
of their parent device), this will be NULL and cause the chip not to be
fully registered.

Instead, use the GPIO device's FW node, which is set to either the node
of the parent device or the explicit override in chip->fwnode.

Fixes: 8afe82550240 ("gpiolib: of: Prepare of_gpiochip_add() / of_gpiochip_remove() for fwnode")
Tested-by: Marek Szyprowski <m.szyprowski@samsung.com>
Signed-off-by: Thierry Reding <treding@nvidia.com>
---
drivers/gpio/gpiolib-of.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpio/gpiolib-of.c b/drivers/gpio/gpiolib-of.c
index 4be3c21aa718..55c3712592db 100644
--- a/drivers/gpio/gpiolib-of.c
+++ b/drivers/gpio/gpiolib-of.c
@@ -1067,7 +1067,7 @@ int of_gpiochip_add(struct gpio_chip *chip)
struct device_node *np;
int ret;

- np = to_of_node(chip->fwnode);
+ np = to_of_node(dev_fwnode(&chip->gpiodev->dev));
if (!np)
return 0;

--
2.38.1
\
 
 \ /
  Last update: 2022-11-11 12:40    [W:0.115 / U:1.312 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site