lkml.org 
[lkml]   [2020]   [Nov]   [2]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] drm/panfrost: Add support for non-existent reset node
Date
Some dts hasn't no reset node, is should ok.

Signed-off-by: Yejune Deng <yejune.deng@gmail.com>
---
drivers/gpu/drm/panfrost/panfrost_device.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/panfrost/panfrost_device.c b/drivers/gpu/drm/panfrost/panfrost_device.c
index ea8d318..a982878 100644
--- a/drivers/gpu/drm/panfrost/panfrost_device.c
+++ b/drivers/gpu/drm/panfrost/panfrost_device.c
@@ -18,7 +18,12 @@

static int panfrost_reset_init(struct panfrost_device *pfdev)
{
- pfdev->rstc = devm_reset_control_array_get(pfdev->dev, false, true);
+ pfdev->rstc = devm_reset_control_array_get_optional_exclusive(pfdev->dev);
+ if (!pfdev->rstc) {
+ dev_info(pfdev->dev, "reset does not exist\n");
+ return 0;
+ }
+
if (IS_ERR(pfdev->rstc)) {
dev_err(pfdev->dev, "get reset failed %ld\n", PTR_ERR(pfdev->rstc));
return PTR_ERR(pfdev->rstc);
@@ -29,7 +34,8 @@ static int panfrost_reset_init(struct panfrost_device *pfdev)

static void panfrost_reset_fini(struct panfrost_device *pfdev)
{
- reset_control_assert(pfdev->rstc);
+ if (pfdev->rstc)
+ reset_control_assert(pfdev->rstc);
}

static int panfrost_clk_init(struct panfrost_device *pfdev)
--
1.9.1
\
 
 \ /
  Last update: 2020-11-02 09:55    [W:0.035 / U:0.372 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site