You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
80 lines
2.3 KiB
80 lines
2.3 KiB
![]()
6 years ago
|
From d15f2c268d1e5e97fbda9b80b3b9fefe7de2ff44 Mon Sep 17 00:00:00 2001
|
||
|
From: Eric Anholt <eric@anholt.net>
|
||
|
Date: Tue, 30 Jan 2018 14:21:02 -0800
|
||
|
Subject: [PATCH 186/454] drm/vc4: Add missing enable/disable vblank handlers
|
||
|
in fkms.
|
||
|
|
||
|
Fixes hang at boot in 4.14.
|
||
|
|
||
|
Signed-off-by: Eric Anholt <eric@anholt.net>
|
||
|
---
|
||
|
drivers/gpu/drm/vc4/vc4_crtc.c | 14 --------------
|
||
|
drivers/gpu/drm/vc4/vc4_firmware_kms.c | 15 +++++++++++++++
|
||
|
2 files changed, 15 insertions(+), 14 deletions(-)
|
||
|
|
||
|
--- a/drivers/gpu/drm/vc4/vc4_crtc.c
|
||
|
+++ b/drivers/gpu/drm/vc4/vc4_crtc.c
|
||
|
@@ -685,15 +685,8 @@ static void vc4_crtc_atomic_flush(struct
|
||
|
|
||
|
static int vc4_enable_vblank(struct drm_crtc *crtc)
|
||
|
{
|
||
|
- struct drm_device *dev = crtc->dev;
|
||
|
- struct vc4_dev *vc4 = to_vc4_dev(dev);
|
||
|
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
|
||
|
|
||
|
- if (vc4->firmware_kms) {
|
||
|
- /* XXX: Can we mask the SMI interrupt? */
|
||
|
- return 0;
|
||
|
- }
|
||
|
-
|
||
|
CRTC_WRITE(PV_INTEN, PV_INT_VFP_START);
|
||
|
|
||
|
return 0;
|
||
|
@@ -701,15 +694,8 @@ static int vc4_enable_vblank(struct drm_
|
||
|
|
||
|
static void vc4_disable_vblank(struct drm_crtc *crtc)
|
||
|
{
|
||
|
- struct drm_device *dev = crtc->dev;
|
||
|
- struct vc4_dev *vc4 = to_vc4_dev(dev);
|
||
|
struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc);
|
||
|
|
||
|
- if (vc4->firmware_kms) {
|
||
|
- /* XXX: Can we mask the SMI interrupt? */
|
||
|
- return;
|
||
|
- }
|
||
|
-
|
||
|
CRTC_WRITE(PV_INTEN, 0);
|
||
|
}
|
||
|
|
||
|
--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c
|
||
|
+++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c
|
||
|
@@ -441,6 +441,19 @@ static int vc4_page_flip(struct drm_crtc
|
||
|
return drm_atomic_helper_page_flip(crtc, fb, event, flags, ctx);
|
||
|
}
|
||
|
|
||
|
+static int vc4_fkms_enable_vblank(struct drm_crtc *crtc)
|
||
|
+{
|
||
|
+ /* XXX: Need a way to enable/disable the interrupt, to avoid
|
||
|
+ * DRM warnings at boot time.
|
||
|
+ */
|
||
|
+
|
||
|
+ return 0;
|
||
|
+}
|
||
|
+
|
||
|
+static void vc4_fkms_disable_vblank(struct drm_crtc *crtc)
|
||
|
+{
|
||
|
+}
|
||
|
+
|
||
|
static const struct drm_crtc_funcs vc4_crtc_funcs = {
|
||
|
.set_config = drm_atomic_helper_set_config,
|
||
|
.destroy = drm_crtc_cleanup,
|
||
|
@@ -451,6 +464,8 @@ static const struct drm_crtc_funcs vc4_c
|
||
|
.reset = drm_atomic_helper_crtc_reset,
|
||
|
.atomic_duplicate_state = drm_atomic_helper_crtc_duplicate_state,
|
||
|
.atomic_destroy_state = drm_atomic_helper_crtc_destroy_state,
|
||
|
+ .enable_vblank = vc4_fkms_enable_vblank,
|
||
|
+ .disable_vblank = vc4_fkms_disable_vblank,
|
||
|
};
|
||
|
|
||
|
static const struct drm_crtc_helper_funcs vc4_crtc_helper_funcs = {
|