diff options
author | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-07-15 18:11:25 +0100 |
---|---|---|
committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2015-10-01 14:33:27 +0100 |
commit | 583268035825fc5ef0bbc467631fea0358831cbe (patch) | |
tree | 26584d63598eb4b0ca053407566a8d6707391201 /drivers/gpu/drm/armada/armada_crtc.c | |
parent | de32301b86030b20a51151a12d81fff6429cad0c (diff) | |
download | op-kernel-dev-583268035825fc5ef0bbc467631fea0358831cbe.zip op-kernel-dev-583268035825fc5ef0bbc467631fea0358831cbe.tar.gz |
drm/armada: provide a common helper to disable a plane
Provide a common helper to disable either the overlay or the primary
plane.
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'drivers/gpu/drm/armada/armada_crtc.c')
-rw-r--r-- | drivers/gpu/drm/armada/armada_crtc.c | 33 |
1 files changed, 27 insertions, 6 deletions
diff --git a/drivers/gpu/drm/armada/armada_crtc.c b/drivers/gpu/drm/armada/armada_crtc.c index f146fcf..007fc5d 100644 --- a/drivers/gpu/drm/armada/armada_crtc.c +++ b/drivers/gpu/drm/armada/armada_crtc.c @@ -700,18 +700,39 @@ static int armada_drm_crtc_mode_set_base(struct drm_crtc *crtc, int x, int y, return 0; } +void armada_drm_crtc_plane_disable(struct armada_crtc *dcrtc, + struct drm_plane *plane) +{ + u32 sram_para1; + + /* + * Drop our reference on any framebuffer attached to this plane. + * We don't need to NULL this out as drm_plane_force_disable(), + * and __setplane_internal() will do so for an overlay plane, and + * __drm_helper_disable_unused_functions() will do so for the + * primary plane. + */ + if (plane->fb) + drm_framebuffer_unreference(plane->fb); + + /* Power down the Y/U/V FIFOs */ + sram_para1 = CFG_PDWN16x66 | CFG_PDWN32x66; + + /* Power down most RAMs and FIFOs if this is the primary plane */ + if (plane->type == DRM_PLANE_TYPE_PRIMARY) + sram_para1 |= CFG_PDWN256x32 | CFG_PDWN256x24 | CFG_PDWN256x8 | + CFG_PDWN32x32 | CFG_PDWN64x66; + + armada_updatel(sram_para1, 0, dcrtc->base + LCD_SPU_SRAM_PARA1); +} + /* The mode_config.mutex will be held for this call */ static void armada_drm_crtc_disable(struct drm_crtc *crtc) { struct armada_crtc *dcrtc = drm_to_armada_crtc(crtc); armada_drm_crtc_dpms(crtc, DRM_MODE_DPMS_OFF); - armada_drm_crtc_finish_fb(dcrtc, crtc->primary->fb, true); - - /* Power down most RAMs and FIFOs */ - writel_relaxed(CFG_PDWN256x32 | CFG_PDWN256x24 | CFG_PDWN256x8 | - CFG_PDWN32x32 | CFG_PDWN16x66 | CFG_PDWN32x66 | - CFG_PDWN64x66, dcrtc->base + LCD_SPU_SRAM_PARA1); + armada_drm_crtc_plane_disable(dcrtc, crtc->primary); } static const struct drm_crtc_helper_funcs armada_crtc_helper_funcs = { |