diff options
Diffstat (limited to 'drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c')
| -rw-r--r-- | drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c | 89 |
1 files changed, 81 insertions, 8 deletions
diff --git a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c index 733646c0d3f..79d804e61cc 100644 --- a/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c +++ b/drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c @@ -106,6 +106,7 @@ static int mdp4_hw_init(struct msm_kms *kms) if (mdp4_kms->rev >= 2) mdp4_write(mdp4_kms, REG_MDP4_LAYERMIXER_IN_CFG_UPDATE_METHOD, 1); + mdp4_write(mdp4_kms, REG_MDP4_LAYERMIXER_IN_CFG, 0); /* disable CSC matrix / YUV by default: */ mdp4_write(mdp4_kms, REG_MDP4_PIPE_OP_MODE(VG1), 0); @@ -196,6 +197,28 @@ int mdp4_enable(struct mdp4_kms *mdp4_kms) return 0; } +#ifdef CONFIG_OF +static struct drm_panel *detect_panel(struct drm_device *dev, const char *name) +{ + struct device_node *n; + struct drm_panel *panel = NULL; + + n = of_parse_phandle(dev->dev->of_node, name, 0); + if (n) { + panel = of_drm_find_panel(n); + if (!panel) + panel = ERR_PTR(-EPROBE_DEFER); + } + + return panel; +} +#else +static struct drm_panel *detect_panel(struct drm_device *dev, const char *name) +{ + // ??? maybe use a module param to specify which panel is attached? +} +#endif + static int modeset_init(struct mdp4_kms *mdp4_kms) { struct drm_device *dev = mdp4_kms->dev; @@ -203,14 +226,11 @@ static int modeset_init(struct mdp4_kms *mdp4_kms) struct drm_plane *plane; struct drm_crtc *crtc; struct drm_encoder *encoder; + struct drm_connector *connector; + struct drm_panel *panel; struct hdmi *hdmi; int ret; - /* - * NOTE: this is a bit simplistic until we add support - * for more than just RGB1->DMA_E->DTV->HDMI - */ - /* construct non-private planes: */ plane = mdp4_plane_init(dev, VG1, false); if (IS_ERR(plane)) { @@ -228,7 +248,57 @@ static int modeset_init(struct mdp4_kms *mdp4_kms) } priv->planes[priv->num_planes++] = plane; - /* the CRTCs get constructed with a private plane: */ + /* + * Setup the LCDC/LVDS path: RGB2 -> DMA_P -> LCDC -> LVDS: + */ + + panel = detect_panel(dev, "qcom,lvds-panel"); + if (IS_ERR(panel)) { + ret = PTR_ERR(panel); + dev_err(dev->dev, "failed to detect LVDS panel: %d\n", ret); + goto fail; + } + + plane = mdp4_plane_init(dev, RGB2, true); + if (IS_ERR(plane)) { + dev_err(dev->dev, "failed to construct plane for RGB2\n"); + ret = PTR_ERR(plane); + goto fail; + } + + crtc = mdp4_crtc_init(dev, plane, priv->num_crtcs, 0, DMA_P); + if (IS_ERR(crtc)) { + dev_err(dev->dev, "failed to construct crtc for DMA_P\n"); + ret = PTR_ERR(crtc); + goto fail; + } + + encoder = mdp4_lcdc_encoder_init(dev, panel); + if (IS_ERR(encoder)) { + dev_err(dev->dev, "failed to construct LCDC encoder\n"); + ret = PTR_ERR(encoder); + goto fail; + } + + /* LCDC can be hooked to DMA_P: */ + encoder->possible_crtcs = 1 << priv->num_crtcs; + + priv->crtcs[priv->num_crtcs++] = crtc; + priv->encoders[priv->num_encoders++] = encoder; + + connector = mdp4_lvds_connector_init(dev, panel, encoder); + if (IS_ERR(connector)) { + ret = PTR_ERR(connector); + dev_err(dev->dev, "failed to initialize LVDS connector: %d\n", ret); + goto fail; + } + + priv->connectors[priv->num_connectors++] = connector; + + /* + * Setup DTV/HDMI path: RGB1 -> DMA_E -> DTV -> HDMI: + */ + plane = mdp4_plane_init(dev, RGB1, true); if (IS_ERR(plane)) { dev_err(dev->dev, "failed to construct plane for RGB1\n"); @@ -242,7 +312,6 @@ static int modeset_init(struct mdp4_kms *mdp4_kms) ret = PTR_ERR(crtc); goto fail; } - priv->crtcs[priv->num_crtcs++] = crtc; encoder = mdp4_dtv_encoder_init(dev); if (IS_ERR(encoder)) { @@ -250,7 +319,11 @@ static int modeset_init(struct mdp4_kms *mdp4_kms) ret = PTR_ERR(encoder); goto fail; } - encoder->possible_crtcs = 0x1; /* DTV can be hooked to DMA_E */ + + /* DTV can be hooked to DMA_E: */ + encoder->possible_crtcs = 1 << priv->num_crtcs; + + priv->crtcs[priv->num_crtcs++] = crtc; priv->encoders[priv->num_encoders++] = encoder; hdmi = hdmi_init(dev, encoder); |