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drm/msm/mdp4: Clean up modeset_init 

modeset_init() for mdp4 isn't very flexible. That makes it hard to add
more interfaces.

Split out the encoder/connector creation code in modeset_init into a
separate function. This is similar to what's done in modeset_init for
mdp5.

Signed-off-by: Archit Taneja <architt@codeaurora.org>
Signed-off-by: Rob Clark <robdclark@gmail.com>
This commit is contained in:
Archit Taneja 2015-10-19 12:20:52 +05:30 committed by Rob Clark
parent 66a42f8586
commit ec141af624
1 changed files with 121 additions and 95 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

216
drivers/gpu/drm/msm/mdp/mdp4/mdp4_kms.c
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@ -270,117 +270,143 @@ static struct drm_panel *detect_panel(struct drm_device *dev)
return panel;
}
static int mdp4_modeset_init_intf(struct mdp4_kms *mdp4_kms,
int intf_type)
{
struct drm_device *dev = mdp4_kms->dev;
struct msm_drm_private *priv = dev->dev_private;
struct drm_encoder *encoder;
struct drm_connector *connector;
struct drm_panel *panel;
int ret;
switch (intf_type) {
case DRM_MODE_ENCODER_LVDS:
panel = detect_panel(dev);
if (IS_ERR(panel)) {
dev_err(dev->dev, "failed to detect LVDS panel\n");
return PTR_ERR(panel);
}
encoder = mdp4_lcdc_encoder_init(dev, panel);
if (IS_ERR(encoder)) {
dev_err(dev->dev, "failed to construct LCDC encoder\n");
return PTR_ERR(encoder);
}
/* LCDC can be hooked to DMA_P (TODO: Add DMA_S later?) */
encoder->possible_crtcs = 1 << DMA_P;
connector = mdp4_lvds_connector_init(dev, panel, encoder);
if (IS_ERR(connector)) {
dev_err(dev->dev, "failed to initialize LVDS connector\n");
return PTR_ERR(connector);
}
priv->encoders[priv->num_encoders++] = encoder;
priv->connectors[priv->num_connectors++] = connector;
break;
case DRM_MODE_ENCODER_TMDS:
encoder = mdp4_dtv_encoder_init(dev);
if (IS_ERR(encoder)) {
dev_err(dev->dev, "failed to construct DTV encoder\n");
return PTR_ERR(encoder);
}
/* DTV can be hooked to DMA_E: */
encoder->possible_crtcs = 1 << 1;
if (priv->hdmi) {
/* Construct bridge/connector for HDMI: */
ret = hdmi_modeset_init(priv->hdmi, dev, encoder);
if (ret) {
dev_err(dev->dev, "failed to initialize HDMI: %d\n", ret);
return ret;
}
}
priv->encoders[priv->num_encoders++] = encoder;
break;
default:
dev_err(dev->dev, "Invalid or unsupported interface\n");
return -EINVAL;
}
return 0;
}
static int modeset_init(struct mdp4_kms *mdp4_kms)
{
struct drm_device *dev = mdp4_kms->dev;
struct msm_drm_private *priv = dev->dev_private;
struct drm_plane *plane;
struct drm_crtc *crtc;
struct drm_encoder *encoder;
struct drm_connector *connector;
struct drm_panel *panel;
int ret;
int i, ret;
static const enum mdp4_pipe rgb_planes[] = {
RGB1, RGB2,
};
static const enum mdp4_pipe vg_planes[] = {
VG1, VG2,
};
static const enum mdp4_dma mdp4_crtcs[] = {
DMA_P, DMA_E,
};
static const char * const mdp4_crtc_names[] = {
"DMA_P", "DMA_E",
};
static const int mdp4_intfs[] = {
DRM_MODE_ENCODER_LVDS,
DRM_MODE_ENCODER_TMDS,
};
/* construct non-private planes: */
plane = mdp4_plane_init(dev, VG1, false);
if (IS_ERR(plane)) {
dev_err(dev->dev, "failed to construct plane for VG1\n");
ret = PTR_ERR(plane);
goto fail;
for (i = 0; i < ARRAY_SIZE(vg_planes); i++) {
plane = mdp4_plane_init(dev, vg_planes[i], false);
if (IS_ERR(plane)) {
dev_err(dev->dev,
"failed to construct plane for VG%d\n", i + 1);
ret = PTR_ERR(plane);
goto fail;
}
priv->planes[priv->num_planes++] = plane;
}
priv->planes[priv->num_planes++] = plane;
plane = mdp4_plane_init(dev, VG2, false);
if (IS_ERR(plane)) {
dev_err(dev->dev, "failed to construct plane for VG2\n");
ret = PTR_ERR(plane);
goto fail;
for (i = 0; i < ARRAY_SIZE(mdp4_crtcs); i++) {
plane = mdp4_plane_init(dev, rgb_planes[i], true);
if (IS_ERR(plane)) {
dev_err(dev->dev,
"failed to construct plane for RGB%d\n", i + 1);
ret = PTR_ERR(plane);
goto fail;
}
crtc = mdp4_crtc_init(dev, plane, priv->num_crtcs, i,
mdp4_crtcs[i]);
if (IS_ERR(crtc)) {
dev_err(dev->dev, "failed to construct crtc for %s\n",
mdp4_crtc_names[i]);
ret = PTR_ERR(crtc);
goto fail;
}
priv->crtcs[priv->num_crtcs++] = crtc;
}
priv->planes[priv->num_planes++] = plane;
/*
* Setup the LCDC/LVDS path: RGB2 -> DMA_P -> LCDC -> LVDS:
* we currently set up two relatively fixed paths:
*
* LCDC/LVDS path: RGB1 -> DMA_P -> LCDC -> LVDS
* DTV/HDMI path: RGB2 -> DMA_E -> DTV -> HDMI
*/
panel = detect_panel(dev);
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");
ret = PTR_ERR(plane);
goto fail;
}
crtc = mdp4_crtc_init(dev, plane, priv->num_crtcs, 1, DMA_E);
if (IS_ERR(crtc)) {
dev_err(dev->dev, "failed to construct crtc for DMA_E\n");
ret = PTR_ERR(crtc);
goto fail;
}
encoder = mdp4_dtv_encoder_init(dev);
if (IS_ERR(encoder)) {
dev_err(dev->dev, "failed to construct DTV encoder\n");
ret = PTR_ERR(encoder);
goto fail;
}
/* 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;
if (priv->hdmi) {
/* Construct bridge/connector for HDMI: */
ret = hdmi_modeset_init(priv->hdmi, dev, encoder);
for (i = 0; i < ARRAY_SIZE(mdp4_intfs); i++) {
ret = mdp4_modeset_init_intf(mdp4_kms, mdp4_intfs[i]);
if (ret) {
dev_err(dev->dev, "failed to initialize HDMI: %d\n", ret);
dev_err(dev->dev, "failed to initialize intf: %d, %d\n",
i, ret);
goto fail;
}
}