From feaaee4278077dd67fe24acebfbe47ba20738955 Mon Sep 17 00:00:00 2001

From: Hans de Goede <hdegoede@redhat.com>

Date: Sat, 13 May 2017 17:23:36 +0200

Subject: [PATCH] drm: Install pwm modules on all architectures

At least on x86 on Bay and Cherry Trail devices the pmw-lpss modules must

be in the initrd too, otherwise the i915 driver will still load, but

it will report the following error:

[drm:pwm_setup_backlight [i915]] *ERROR* Failed to own the pwm chip

And not register /sys/class/backlight/intel_backlight and users will

not be able to control their backlight.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>

---

 modules.d/50drm/module-setup.sh | 3 +--

 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/modules.d/50drm/module-setup.sh b/modules.d/50drm/module-setup.sh

index 42a5e7bc..2014539a 100755

--- a/modules.d/50drm/module-setup.sh

+++ b/modules.d/50drm/module-setup.sh

@@ -21,12 +21,11 @@ installkernel() {

             "=drivers/gpu/drm/i2c" \

             "=drivers/gpu/drm/panel" \

             "=drivers/gpu/drm/bridge" \

-            "=drivers/pwm" \

             "=drivers/video/backlight" \

             ${NULL}

     fi

-    instmods amdkfd hyperv_fb

+    instmods amdkfd hyperv_fb "=drivers/pwm"

     # if the hardware is present, include module even if it is not currently loaded,

     # as we could e.g. be in the installer; nokmsboot boot parameter will disable