diff options
Diffstat (limited to 'target/linux/bcm27xx/patches-4.19/950-0108-drm-vc4-Add-support-for-setting-DPMS-in-firmwarekms.patch')
| -rw-r--r-- | target/linux/bcm27xx/patches-4.19/950-0108-drm-vc4-Add-support-for-setting-DPMS-in-firmwarekms.patch | 103 |
1 files changed, 103 insertions, 0 deletions
diff --git a/target/linux/bcm27xx/patches-4.19/950-0108-drm-vc4-Add-support-for-setting-DPMS-in-firmwarekms.patch b/target/linux/bcm27xx/patches-4.19/950-0108-drm-vc4-Add-support-for-setting-DPMS-in-firmwarekms.patch new file mode 100644 index 0000000000..2a52b0f98a --- /dev/null +++ b/target/linux/bcm27xx/patches-4.19/950-0108-drm-vc4-Add-support-for-setting-DPMS-in-firmwarekms.patch @@ -0,0 +1,103 @@ +From c95479213d28d9866e617a54b0435c974874ce9d Mon Sep 17 00:00:00 2001 +From: Eric Anholt <eric@anholt.net> +Date: Thu, 6 Jul 2017 11:45:48 -0700 +Subject: [PATCH] drm/vc4: Add support for setting DPMS in firmwarekms. + +This ensures that the screen goes blank during DPMS (screensaver), +including the cursor. Planes don't necessarily get disabled during +CRTC disable, so we need to be careful to not leave them on or turn +them back on early. + +Signed-off-by: Eric Anholt <eric@anholt.net> +--- + drivers/gpu/drm/vc4/vc4_firmware_kms.c | 40 ++++++++++++++++++++++++-- + 1 file changed, 37 insertions(+), 3 deletions(-) + +--- a/drivers/gpu/drm/vc4/vc4_firmware_kms.c ++++ b/drivers/gpu/drm/vc4/vc4_firmware_kms.c +@@ -36,6 +36,8 @@ struct vc4_crtc { + struct drm_crtc base; + struct drm_encoder *encoder; + struct drm_connector *connector; ++ struct drm_plane *primary; ++ struct drm_plane *cursor; + void __iomem *regs; + + struct drm_pending_vblank_event *event; +@@ -123,8 +125,6 @@ static void vc4_primary_plane_atomic_upd + u32 bpp = 32; + int ret; + +- vc4_plane_set_primary_blank(plane, false); +- + fbinfo->xres = state->crtc_w; + fbinfo->yres = state->crtc_h; + fbinfo->xres_virtual = state->crtc_w; +@@ -168,6 +168,12 @@ static void vc4_primary_plane_atomic_upd + vc4_plane->fbinfo_bus_addr); + WARN_ON_ONCE(fbinfo->pitch != fb->pitches[0]); + WARN_ON_ONCE(fbinfo->base != bo->paddr + fb->offsets[0]); ++ ++ /* If the CRTC is on (or going to be on) and we're enabled, ++ * then unblank. Otherwise, stay blank until CRTC enable. ++ */ ++ if (state->crtc->state->active) ++ vc4_plane_set_primary_blank(plane, false); + } + + static void vc4_primary_plane_atomic_disable(struct drm_plane *plane, +@@ -184,7 +190,12 @@ static void vc4_cursor_plane_atomic_upda + struct drm_framebuffer *fb = state->fb; + struct drm_gem_cma_object *bo = drm_fb_cma_get_gem_obj(fb, 0); + int ret; +- u32 packet_state[] = { true, state->crtc_x, state->crtc_y, 0 }; ++ u32 packet_state[] = { ++ state->crtc->state->active, ++ state->crtc_x, ++ state->crtc_y, ++ 0 ++ }; + u32 packet_info[] = { state->crtc_w, state->crtc_h, + 0, /* unused */ + bo->paddr + fb->offsets[0], +@@ -321,10 +332,30 @@ static void vc4_crtc_mode_set_nofb(struc + + static void vc4_crtc_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) + { ++ struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); ++ ++ /* Always turn the planes off on CRTC disable. In DRM, planes ++ * are enabled/disabled through the update/disable hooks ++ * above, and the CRTC enable/disable independently controls ++ * whether anything scans out at all, but the firmware doesn't ++ * give us a CRTC-level control for that. ++ */ ++ vc4_cursor_plane_atomic_disable(vc4_crtc->cursor, ++ vc4_crtc->cursor->state); ++ vc4_plane_set_primary_blank(vc4_crtc->primary, true); + } + + static void vc4_crtc_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) + { ++ struct vc4_crtc *vc4_crtc = to_vc4_crtc(crtc); ++ ++ /* Unblank the planes (if they're supposed to be displayed). */ ++ if (vc4_crtc->primary->state->fb) ++ vc4_plane_set_primary_blank(vc4_crtc->primary, false); ++ if (vc4_crtc->cursor->state->fb) { ++ vc4_cursor_plane_atomic_update(vc4_crtc->cursor, ++ vc4_crtc->cursor->state); ++ } + } + + static int vc4_crtc_atomic_check(struct drm_crtc *crtc, +@@ -618,6 +649,9 @@ static int vc4_fkms_bind(struct device * + primary_plane->crtc = crtc; + cursor_plane->crtc = crtc; + ++ vc4_crtc->primary = primary_plane; ++ vc4_crtc->cursor = cursor_plane; ++ + vc4_encoder = devm_kzalloc(dev, sizeof(*vc4_encoder), GFP_KERNEL); + if (!vc4_encoder) + return -ENOMEM; |