diff options
author | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-02-11 12:35:35 +0300 |
---|---|---|
committer | Maxime Ripard <maxime.ripard@bootlin.com> | 2019-02-11 12:35:35 +0300 |
commit | d588100baa28dae6a5c32d02bfe744d0792ed2ad (patch) | |
tree | 3be3984cea35a07b4259f8ebe55ce0e52e416d1c /drivers/gpu/drm/rcar-du/rcar_du_crtc.c | |
parent | 7bd0a3271e239d34bae5fa51e4f44ed9ee861a59 (diff) | |
parent | 16065fcdd19ddb9e093192914ac863884f308766 (diff) | |
download | linux-d588100baa28dae6a5c32d02bfe744d0792ed2ad.tar.xz |
Merge drm/drm-next into drm-misc-next
We need to backmerge drm-next to fix the komeda build failure.
Signed-off-by: Maxime Ripard <maxime.ripard@bootlin.com>
Diffstat (limited to 'drivers/gpu/drm/rcar-du/rcar_du_crtc.c')
-rw-r--r-- | drivers/gpu/drm/rcar-du/rcar_du_crtc.c | 34 |
1 files changed, 34 insertions, 0 deletions
diff --git a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c index 4d1e5098b70e..4cdea14d552f 100644 --- a/drivers/gpu/drm/rcar-du/rcar_du_crtc.c +++ b/drivers/gpu/drm/rcar-du/rcar_du_crtc.c @@ -28,6 +28,7 @@ #include "rcar_du_plane.h" #include "rcar_du_regs.h" #include "rcar_du_vsp.h" +#include "rcar_lvds.h" static u32 rcar_du_crtc_read(struct rcar_du_crtc *rcrtc, u32 reg) { @@ -659,8 +660,27 @@ static void rcar_du_crtc_atomic_enable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + struct rcar_du_crtc_state *rstate = to_rcar_crtc_state(crtc->state); + struct rcar_du_device *rcdu = rcrtc->group->dev; rcar_du_crtc_get(rcrtc); + + /* + * On D3/E3 the dot clock is provided by the LVDS encoder attached to + * the DU channel. We need to enable its clock output explicitly if + * the LVDS output is disabled. + */ + if (rcdu->info->lvds_clk_mask & BIT(rcrtc->index) && + rstate->outputs == BIT(RCAR_DU_OUTPUT_DPAD0)) { + struct rcar_du_encoder *encoder = + rcdu->encoders[RCAR_DU_OUTPUT_LVDS0 + rcrtc->index]; + const struct drm_display_mode *mode = + &crtc->state->adjusted_mode; + + rcar_lvds_clk_enable(encoder->base.bridge, + mode->clock * 1000); + } + rcar_du_crtc_start(rcrtc); } @@ -668,10 +688,24 @@ static void rcar_du_crtc_atomic_disable(struct drm_crtc *crtc, struct drm_crtc_state *old_state) { struct rcar_du_crtc *rcrtc = to_rcar_crtc(crtc); + struct rcar_du_crtc_state *rstate = to_rcar_crtc_state(old_state); + struct rcar_du_device *rcdu = rcrtc->group->dev; rcar_du_crtc_stop(rcrtc); rcar_du_crtc_put(rcrtc); + if (rcdu->info->lvds_clk_mask & BIT(rcrtc->index) && + rstate->outputs == BIT(RCAR_DU_OUTPUT_DPAD0)) { + struct rcar_du_encoder *encoder = + rcdu->encoders[RCAR_DU_OUTPUT_LVDS0 + rcrtc->index]; + + /* + * Disable the LVDS clock output, see + * rcar_du_crtc_atomic_enable(). + */ + rcar_lvds_clk_disable(encoder->base.bridge); + } + spin_lock_irq(&crtc->dev->event_lock); if (crtc->state->event) { drm_crtc_send_vblank_event(crtc, crtc->state->event); |