Messages in this thread Patch in this message | | | From | Yejune Deng <> | Subject | [PATCH] drm/panfrost: Add support for non-existent reset node | Date | Mon, 2 Nov 2020 16:54:49 +0800 |
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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
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