modify the driver to call the bridge->funcs of the next bridge in the chain. We assume that the bridge sitting next to ptn3460 is a bridge-panel.
Signed-off-by: Ajay Kumar <ajaykumar...@samsung.com> --- drivers/gpu/drm/bridge/ptn3460.c | 21 +++++++++++++++++---- 1 file changed, 17 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/bridge/ptn3460.c b/drivers/gpu/drm/bridge/ptn3460.c index b171901..969869a 100644 --- a/drivers/gpu/drm/bridge/ptn3460.c +++ b/drivers/gpu/drm/bridge/ptn3460.c @@ -126,6 +126,8 @@ static void ptn3460_pre_enable(struct drm_bridge *bridge) gpio_set_value(ptn_bridge->gpio_rst_n, 1); } + if (bridge->next_bridge) + bridge->next_bridge->funcs->pre_enable(bridge->next_bridge); /* * There's a bug in the PTN chip where it falsely asserts hotplug before * it is fully functional. We're forced to wait for the maximum start up @@ -142,6 +144,8 @@ static void ptn3460_pre_enable(struct drm_bridge *bridge) static void ptn3460_enable(struct drm_bridge *bridge) { + if (bridge->next_bridge) + bridge->next_bridge->funcs->enable(bridge->next_bridge); } static void ptn3460_disable(struct drm_bridge *bridge) @@ -153,6 +157,11 @@ static void ptn3460_disable(struct drm_bridge *bridge) ptn_bridge->enabled = false; + if (bridge->next_bridge) { + bridge->next_bridge->funcs->disable(bridge->next_bridge); + bridge->next_bridge->funcs->post_disable(bridge->next_bridge); + } + if (gpio_is_valid(ptn_bridge->gpio_rst_n)) gpio_set_value(ptn_bridge->gpio_rst_n, 1); @@ -197,7 +206,10 @@ int ptn3460_get_modes(struct drm_connector *connector) return drm_add_edid_modes(connector, ptn_bridge->edid); power_off = !ptn_bridge->enabled; - ptn3460_pre_enable(ptn_bridge->bridge); + if (power_off) { + ptn3460_pre_enable(ptn_bridge->bridge); + ptn3460_enable(ptn_bridge->bridge); + } edid = kmalloc(EDID_LENGTH, GFP_KERNEL); if (!edid) { @@ -219,8 +231,10 @@ int ptn3460_get_modes(struct drm_connector *connector) num_modes = drm_add_edid_modes(connector, ptn_bridge->edid); out: - if (power_off) + if (power_off) { ptn3460_disable(ptn_bridge->bridge); + ptn3460_post_disable(ptn_bridge->bridge); + } return num_modes; } @@ -318,14 +332,13 @@ int ptn3460_init(struct drm_device *dev, struct drm_encoder *encoder, goto err; } - ret = drm_bridge_init(dev, bridge, &ptn3460_bridge_funcs); + ret = drm_bridge_init(dev, bridge, encoder, &ptn3460_bridge_funcs); if (ret) { DRM_ERROR("Failed to initialize bridge with drm\n"); goto err; } bridge->driver_private = ptn_bridge; - encoder->bridge = bridge; ret = drm_connector_init(dev, &ptn_bridge->connector, &ptn3460_connector_funcs, DRM_MODE_CONNECTOR_LVDS); -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-samsung-soc" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html