I'm using a boot2qt version of a warrior Yocto build for a raspberry pi4.
I'm trying to apply a patch to a driver in the linux kernel. I'm following the
procedures laid out in the
book "Embedded Linux Systems with the Yocto Project".
I already have a kernel .bbappend file that I'm using to modify the kernel
config and that is working correctly.
I started with a patch file that I found on the internet that addressed the
problem that I have and I added
support for it to my .bbappend file. I know that it has been found correctly
because I initially specified the
file path incorrectly and received an error.
After building my image I go to look at the STAGING_KERNEL_DIR and I do not see
my changes applied to the
file. I even added an error to the patch to see if it was compiling and it
didn't trigger the error.
At this point I went back fully to "Embedded Linux Systems with the Yocto
Project" and created my own
patch. I still don't see it being applied.
Can somebody please tell me where I should see the patch applied?
Here is how I modified my .bbappend:
# additions to Kernel configuration
SRC_URi += "file://0001-drm-vc4-Keep-the-binner-BO-through-suspend-GWL.patch"
do_configure_append() {
.
.
.
}
And here is the patch:
>From d95e6ead8d25165014f8746082656da6345889b0 Mon Sep 17 00:00:00 2001
From: Greg Wilson-Lindberg <[email protected]>
Date: Tue, 10 Mar 2020 16:29:08 -0700
Subject: [PATCH 1/1] drm-vc4-Keep-the-binner-BO-through-suspend-GWL
---
drivers/gpu/drm/vc4/vc4_v3d.c | 7 -------
1 file changed, 7 deletions(-)
diff --git a/drivers/gpu/drm/vc4/vc4_v3d.c b/drivers/gpu/drm/vc4/vc4_v3d.c
index e47e29426078..ff7812066668 100644
--- a/drivers/gpu/drm/vc4/vc4_v3d.c
+++ b/drivers/gpu/drm/vc4/vc4_v3d.c
@@ -303,9 +303,6 @@ static int vc4_v3d_runtime_suspend(struct device *dev)
vc4_irq_uninstall(vc4->dev);
- drm_gem_object_put_unlocked(&vc4->bin_bo->base.base);
- vc4->bin_bo = NULL;
-
clk_disable_unprepare(v3d->clk);
return 0;
@@ -317,10 +314,6 @@ static int vc4_v3d_runtime_resume(struct device *dev)
struct vc4_dev *vc4 = v3d->vc4;
int ret;
- ret = vc4_allocate_bin_bo(vc4->dev);
- if (ret)
- return ret;
-
ret = clk_prepare_enable(v3d->clk);
if (ret != 0)
return ret;
--
2.17.1
Thanks in advance,
Greg Wilson-Lindberg
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