From 9a4a153b092c9f89dfa2766d48b61af251ea5697 Mon Sep 17 00:00:00 2001 From: Nicholas Mc Guire Date: Thu, 25 Apr 2019 16:03:51 +0200 Subject: drm/msm: check for equals 0 only wait_for_completion_timeout() returns 0 on timeout and aleast 1 otherwise so checking for < makes no sense here. Signed-off-by: Nicholas Mc Guire Reviewed-by: Abhinav Kumar Signed-off-by: Rob Clark --- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) (limited to 'drivers/gpu/drm/msm/dsi/dsi_host.c') diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 610183db1daf..dc16067128fc 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1049,7 +1049,7 @@ static void dsi_wait4video_done(struct msm_dsi_host *msm_host) ret = wait_for_completion_timeout(&msm_host->video_comp, msecs_to_jiffies(70)); - if (ret <= 0) + if (ret == 0) DRM_DEV_ERROR(dev, "wait for video done timed out\n"); dsi_intr_ctrl(msm_host, DSI_IRQ_MASK_VIDEO_DONE, 0); -- cgit v1.2.3-55-g7522 From e3a91f893cabd684a6cd63599425118308defc06 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Mon, 17 Jun 2019 16:12:52 -0400 Subject: drm/msm/dsi: Split mode_flags out of msm_dsi_host_get_panel() We use the flags in more places than just get_panel, so split them out into a separate function. Reviewed-by: Rob Clark Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-4-sean@poorly.run --- drivers/gpu/drm/msm/dsi/dsi.h | 4 ++-- drivers/gpu/drm/msm/dsi/dsi_host.c | 15 ++++++--------- drivers/gpu/drm/msm/dsi/dsi_manager.c | 7 ++++--- 3 files changed, 12 insertions(+), 14 deletions(-) (limited to 'drivers/gpu/drm/msm/dsi/dsi_host.c') diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h index 9c6b31c2d79f..8bdc48ca0b67 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -169,8 +169,8 @@ int msm_dsi_host_power_on(struct mipi_dsi_host *host, int msm_dsi_host_power_off(struct mipi_dsi_host *host); int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, const struct drm_display_mode *mode); -struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host, - unsigned long *panel_flags); +struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host); +unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host); struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host); int msm_dsi_host_register(struct mipi_dsi_host *host, bool check_defer); void msm_dsi_host_unregister(struct mipi_dsi_host *host); diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index dc16067128fc..2594ecfcdc14 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -2442,17 +2442,14 @@ int msm_dsi_host_set_display_mode(struct mipi_dsi_host *host, return 0; } -struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host, - unsigned long *panel_flags) +struct drm_panel *msm_dsi_host_get_panel(struct mipi_dsi_host *host) { - struct msm_dsi_host *msm_host = to_msm_dsi_host(host); - struct drm_panel *panel; - - panel = of_drm_find_panel(msm_host->device_node); - if (panel_flags) - *panel_flags = msm_host->mode_flags; + return of_drm_find_panel(to_msm_dsi_host(host)->device_node); +} - return panel; +unsigned long msm_dsi_host_get_mode_flags(struct mipi_dsi_host *host) +{ + return to_msm_dsi_host(host)->mode_flags; } struct drm_bridge *msm_dsi_host_get_bridge(struct mipi_dsi_host *host) diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 72ac869a737a..47b349a4015a 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -244,8 +244,9 @@ static enum drm_connector_status dsi_mgr_connector_detect( DBG("id=%d", id); if (!msm_dsi->panel) { - msm_dsi->panel = msm_dsi_host_get_panel(msm_dsi->host, - &msm_dsi->device_flags); + msm_dsi->panel = msm_dsi_host_get_panel(msm_dsi->host); + msm_dsi->device_flags = msm_dsi_host_get_mode_flags( + msm_dsi->host); /* There is only 1 panel in the global panel list * for dual DSI mode. Therefore slave dsi should get @@ -255,7 +256,7 @@ static enum drm_connector_status dsi_mgr_connector_detect( if (!msm_dsi->panel && IS_DUAL_DSI() && !IS_MASTER_DSI_LINK(id) && other_dsi) msm_dsi->panel = msm_dsi_host_get_panel( - other_dsi->host, NULL); + other_dsi->host); if (msm_dsi->panel && kms->funcs->set_encoder_mode) { -- cgit v1.2.3-55-g7522 From 970524b07a9c1d0434266a0f32825631bc206848 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Mon, 17 Jun 2019 16:12:56 -0400 Subject: drm/msm/dsi: Use the new setup_encoder function in attach_dsi_device Now that we have a function to call set_encoder_mode() for us, use it. Reviewed-by: Rob Clark Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-8-sean@poorly.run --- drivers/gpu/drm/msm/dsi/dsi.h | 2 +- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 +- drivers/gpu/drm/msm/dsi/dsi_manager.c | 15 ++------------- 3 files changed, 4 insertions(+), 15 deletions(-) (limited to 'drivers/gpu/drm/msm/dsi/dsi_host.c') diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h index e0bbe8128aef..f8a611725f2e 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -96,7 +96,7 @@ struct drm_connector *msm_dsi_manager_connector_init(u8 id); struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id); int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len); -void msm_dsi_manager_attach_dsi_device(int id, u32 device_flags); +void msm_dsi_manager_attach_dsi_device(int id); int msm_dsi_manager_register(struct msm_dsi *msm_dsi); void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); bool msm_dsi_manager_validate_current_config(u8 id); diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index 2594ecfcdc14..f6eb91cf97e6 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1598,7 +1598,7 @@ static int dsi_host_attach(struct mipi_dsi_host *host, msm_host->format = dsi->format; msm_host->mode_flags = dsi->mode_flags; - msm_dsi_manager_attach_dsi_device(msm_host->id, dsi->mode_flags); + msm_dsi_manager_attach_dsi_device(msm_host->id); /* Some gpios defined in panel DT need to be controlled by host */ ret = dsi_host_init_panel_gpios(msm_host, &dsi->dev); diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 787d97829912..a48a54005f50 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -787,14 +787,10 @@ bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len) return true; } -void msm_dsi_manager_attach_dsi_device(int id, u32 device_flags) +void msm_dsi_manager_attach_dsi_device(int id) { struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id); struct drm_device *dev; - struct msm_drm_private *priv; - struct msm_kms *kms; - struct drm_encoder *encoder; - bool cmd_mode; /* * drm_device pointer is assigned to msm_dsi only in the modeset_init @@ -816,14 +812,7 @@ void msm_dsi_manager_attach_dsi_device(int id, u32 device_flags) if (!dev) return; - priv = dev->dev_private; - kms = priv->kms; - encoder = msm_dsi_get_encoder(msm_dsi); - cmd_mode = !(device_flags & - MIPI_DSI_MODE_VIDEO); - - if (encoder && kms->funcs->set_encoder_mode) - kms->funcs->set_encoder_mode(kms, encoder, cmd_mode); + msm_dsi_manager_setup_encoder(id); } int msm_dsi_manager_register(struct msm_dsi *msm_dsi) -- cgit v1.2.3-55-g7522 From 03436e3ec69c8e026224a5f172e5d0431f722305 Mon Sep 17 00:00:00 2001 From: Sean Paul Date: Mon, 17 Jun 2019 16:12:58 -0400 Subject: drm/msm/dsi: Move setup_encoder to modeset_init Now that the panel probe/setup is in the modeset path, we can call dsi_manager_setup_encoder() in a common place for both internal and external bridge setups. Reviewed-by: Rob Clark Signed-off-by: Sean Paul Link: https://patchwork.freedesktop.org/patch/msgid/20190617201301.133275-10-sean@poorly.run --- drivers/gpu/drm/msm/dsi/dsi.c | 2 ++ drivers/gpu/drm/msm/dsi/dsi.h | 2 +- drivers/gpu/drm/msm/dsi/dsi_host.c | 2 -- drivers/gpu/drm/msm/dsi/dsi_manager.c | 37 ++--------------------------------- 4 files changed, 5 insertions(+), 38 deletions(-) (limited to 'drivers/gpu/drm/msm/dsi/dsi_host.c') diff --git a/drivers/gpu/drm/msm/dsi/dsi.c b/drivers/gpu/drm/msm/dsi/dsi.c index 7b2a1e6a8810..d45b0a40aaf3 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.c +++ b/drivers/gpu/drm/msm/dsi/dsi.c @@ -250,6 +250,8 @@ int msm_dsi_modeset_init(struct msm_dsi *msm_dsi, struct drm_device *dev, goto fail; } + msm_dsi_manager_setup_encoder(msm_dsi->id); + priv->bridges[priv->num_bridges++] = msm_dsi->bridge; priv->connectors[priv->num_connectors++] = msm_dsi->connector; diff --git a/drivers/gpu/drm/msm/dsi/dsi.h b/drivers/gpu/drm/msm/dsi/dsi.h index f8a611725f2e..53bb124e8259 100644 --- a/drivers/gpu/drm/msm/dsi/dsi.h +++ b/drivers/gpu/drm/msm/dsi/dsi.h @@ -96,7 +96,7 @@ struct drm_connector *msm_dsi_manager_connector_init(u8 id); struct drm_connector *msm_dsi_manager_ext_bridge_init(u8 id); int msm_dsi_manager_cmd_xfer(int id, const struct mipi_dsi_msg *msg); bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len); -void msm_dsi_manager_attach_dsi_device(int id); +void msm_dsi_manager_setup_encoder(int id); int msm_dsi_manager_register(struct msm_dsi *msm_dsi); void msm_dsi_manager_unregister(struct msm_dsi *msm_dsi); bool msm_dsi_manager_validate_current_config(u8 id); diff --git a/drivers/gpu/drm/msm/dsi/dsi_host.c b/drivers/gpu/drm/msm/dsi/dsi_host.c index f6eb91cf97e6..1ae2f5522979 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_host.c +++ b/drivers/gpu/drm/msm/dsi/dsi_host.c @@ -1598,8 +1598,6 @@ static int dsi_host_attach(struct mipi_dsi_host *host, msm_host->format = dsi->format; msm_host->mode_flags = dsi->mode_flags; - msm_dsi_manager_attach_dsi_device(msm_host->id); - /* Some gpios defined in panel DT need to be controlled by host */ ret = dsi_host_init_panel_gpios(msm_host, &dsi->dev); if (ret) diff --git a/drivers/gpu/drm/msm/dsi/dsi_manager.c b/drivers/gpu/drm/msm/dsi/dsi_manager.c index 630af00bbe9a..ff39ce6150ad 100644 --- a/drivers/gpu/drm/msm/dsi/dsi_manager.c +++ b/drivers/gpu/drm/msm/dsi/dsi_manager.c @@ -239,7 +239,7 @@ static bool dsi_mgr_is_cmd_mode(struct msm_dsi *msm_dsi) return !(host_flags & MIPI_DSI_MODE_VIDEO); } -static void msm_dsi_manager_setup_encoder(int id) +void msm_dsi_manager_setup_encoder(int id) { struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id); struct msm_drm_private *priv = msm_dsi->dev->dev_private; @@ -280,12 +280,7 @@ static int msm_dsi_manager_panel_init(struct drm_connector *conn, u8 id) return PTR_ERR(panel); } - if (!panel) - return 0; - - msm_dsi_manager_setup_encoder(id); - - if (!IS_DUAL_DSI()) + if (!panel || !IS_DUAL_DSI()) goto out; drm_object_attach_property(&conn->base, @@ -790,34 +785,6 @@ bool msm_dsi_manager_cmd_xfer_trigger(int id, u32 dma_base, u32 len) return true; } -void msm_dsi_manager_attach_dsi_device(int id) -{ - struct msm_dsi *msm_dsi = dsi_mgr_get_dsi(id); - struct drm_device *dev; - - /* - * drm_device pointer is assigned to msm_dsi only in the modeset_init - * path. If mipi_dsi_attach() happens in DSI driver's probe path - * (generally the case when we're connected to a drm_panel of the type - * mipi_dsi_device), this would be NULL. In such cases, try to set the - * encoder mode in the DSI connector's detect() op. - * - * msm_dsi pointer is assigned to a valid dsi device only when - * msm_dsi_manager_register() succeeds. When panel hasnt probed yet - * dsi_mgr_setup_components() could potentially return -EDEFER and - * assign the msm_dsi->dev to NULL. When the panel now probes and calls - * mipi_dsi_attach(), this will call msm_dsi_manager_attach_dsi_device() - * which will result in a NULL pointer dereference - */ - - dev = msm_dsi ? msm_dsi->dev : NULL; - - if (!dev) - return; - - msm_dsi_manager_setup_encoder(id); -} - int msm_dsi_manager_register(struct msm_dsi *msm_dsi) { struct msm_dsi_manager *msm_dsim = &msm_dsim_glb; -- cgit v1.2.3-55-g7522