| Message ID | 1644009445-17320-11-git-send-email-quic_abhinavk@quicinc.com |
|---|---|
| State | New |
| Headers | show |
| Series | Add writeback block support for DPU | expand |
On 05/02/2022 00:17, Abhinav Kumar wrote: > Initialize dpu encoder and connector for writeback if the > target supports it in the catalog. > > Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com> > --- > drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 37 ++++++++++++----- > drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 62 +++++++++++++++++++++++++++++ > 2 files changed, 88 insertions(+), 11 deletions(-) > > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > index b51a677..3746432 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c > @@ -2066,7 +2066,7 @@ static void dpu_encoder_early_unregister(struct drm_encoder *encoder) > } > > static int dpu_encoder_virt_add_phys_encs( > - u32 display_caps, > + struct msm_display_info *disp_info, > struct dpu_encoder_virt *dpu_enc, > struct dpu_enc_phys_init_params *params) > { > @@ -2085,7 +2085,7 @@ static int dpu_encoder_virt_add_phys_encs( > return -EINVAL; > } > > - if (display_caps & MSM_DISPLAY_CAP_VID_MODE) { > + if (disp_info->capabilities & MSM_DISPLAY_CAP_VID_MODE) { > enc = dpu_encoder_phys_vid_init(params); > > if (IS_ERR_OR_NULL(enc)) { > @@ -2098,7 +2098,7 @@ static int dpu_encoder_virt_add_phys_encs( > ++dpu_enc->num_phys_encs; > } > > - if (display_caps & MSM_DISPLAY_CAP_CMD_MODE) { > + if (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE) { > enc = dpu_encoder_phys_cmd_init(params); > > if (IS_ERR_OR_NULL(enc)) { > @@ -2111,6 +2111,19 @@ static int dpu_encoder_virt_add_phys_encs( > ++dpu_enc->num_phys_encs; > } > > + if (disp_info->intf_type == DRM_MODE_ENCODER_VIRTUAL) { > + enc = dpu_encoder_phys_wb_init(params); > + > + if (IS_ERR_OR_NULL(enc)) { > + DPU_ERROR_ENC(dpu_enc, "failed to init wb enc: %ld\n", > + PTR_ERR(enc)); > + return enc == NULL ? -EINVAL : PTR_ERR(enc); > + } > + > + dpu_enc->phys_encs[dpu_enc->num_phys_encs] = enc; > + ++dpu_enc->num_phys_encs; > + } > + > if (params->split_role == ENC_ROLE_SLAVE) > dpu_enc->cur_slave = enc; > else > @@ -2199,9 +2212,8 @@ static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc, > } > > if (!ret) { > - ret = dpu_encoder_virt_add_phys_encs(disp_info->capabilities, > - dpu_enc, > - &phys_params); > + ret = dpu_encoder_virt_add_phys_encs(disp_info, > + dpu_enc, &phys_params); > if (ret) > DPU_ERROR_ENC(dpu_enc, "failed to add phys encs\n"); > } > @@ -2317,11 +2329,14 @@ struct drm_encoder *dpu_encoder_init(struct drm_device *dev, > if (!dpu_enc) > return ERR_PTR(-ENOMEM); > > - rc = drm_encoder_init(dev, &dpu_enc->base, &dpu_encoder_funcs, > - drm_enc_mode, NULL); > - if (rc) { > - devm_kfree(dev->dev, dpu_enc); > - return ERR_PTR(rc); > + /* this is handled by drm_writeback_connector_init for virtual encoder */ > + if (drm_enc_mode != DRM_MODE_ENCODER_VIRTUAL) { > + rc = drm_encoder_init(dev, &dpu_enc->base, &dpu_encoder_funcs, > + drm_enc_mode, NULL); > + if (rc) { > + devm_kfree(dev->dev, dpu_enc); > + return ERR_PTR(rc); > + } > } > > drm_encoder_helper_add(&dpu_enc->base, &dpu_encoder_helper_funcs); > diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > index 47fe11a..6327ba9 100644 > --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c > @@ -1,5 +1,6 @@ > // SPDX-License-Identifier: GPL-2.0-only > /* > + * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. > * Copyright (c) 2014-2018, The Linux Foundation. All rights reserved. > * Copyright (C) 2013 Red Hat > * Author: Rob Clark <robdclark@gmail.com> > @@ -15,6 +16,7 @@ > #include <drm/drm_crtc.h> > #include <drm/drm_file.h> > #include <drm/drm_vblank.h> > +#include <drm/drm_writeback.h> > > #include "msm_drv.h" > #include "msm_mmu.h" > @@ -29,6 +31,7 @@ > #include "dpu_kms.h" > #include "dpu_plane.h" > #include "dpu_vbif.h" > +#include "dpu_writeback.h" > > #define CREATE_TRACE_POINTS > #include "dpu_trace.h" > @@ -642,6 +645,56 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev, > return 0; > } > > +static int _dpu_kms_initialize_writeback(struct drm_device *dev, > + struct msm_drm_private *priv, struct dpu_kms *dpu_kms) > +{ > + struct drm_encoder *encoder = NULL; > + struct msm_display_info info; > + int rc, i; > + const u32 *wb_formats; > + int n_formats; > + > + encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_VIRTUAL); > + if (IS_ERR(encoder)) { > + DPU_ERROR("encoder init failed for dsi display\n"); > + return PTR_ERR(encoder); > + } > + > + memset(&info, 0, sizeof(info)); > + > + for (i = 0; i < dpu_kms->catalog->wb_count; i++) { > + if (dpu_kms->catalog->wb[i].id == WB_2) { > + wb_formats = dpu_kms->catalog->wb[i].format_list; > + n_formats = dpu_kms->catalog->wb[i].num_formats; > + } > + } If there is no WB_2 in the catalog, then both wb_formats and n_formats would be unused. Also even if there is no WB_2 you'd still try creating the writeback below. I'd suggest to move dpu_encoder_init() + dpu_writeback_init() + dpu_encoder_setup() to the separate function. Then you can loop over the catslog->wb[] and once WB_2 is found, call this new function. > + > + rc = dpu_writeback_init(dev, encoder, encoder->helper_private, wb_formats, > + n_formats); > + if (rc) { > + DPU_ERROR("dpu_writeback_init, rc = %d\n", rc); > + drm_encoder_cleanup(encoder); > + return rc; > + } > + > + priv->encoders[priv->num_encoders++] = encoder; > + > + info.num_of_h_tiles = 1; > + /* use only WB idx 2 instance for DPU */ > + info.h_tile_instance[0] = WB_2; > + info.capabilities = MSM_DISPLAY_CAP_HOT_PLUG | MSM_DISPLAY_CAP_EDID; these two capabilities are unused in the code. I'd suggest to drop them from msm_drv.h at all. > + info.intf_type = encoder->encoder_type; > + > + rc = dpu_encoder_setup(dev, encoder, &info); > + if (rc) { > + DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n", > + encoder->base.id, rc); > + return rc; > + } > + > + return 0; > +} > + > /** > * _dpu_kms_setup_displays - create encoders, bridges and connectors > * for underlying displays > @@ -668,6 +721,15 @@ static int _dpu_kms_setup_displays(struct drm_device *dev, > return rc; > } > > + /* Since WB isn't a driver check the catalog before initializing */ > + if (dpu_kms->catalog->wb_count) { > + rc = _dpu_kms_initialize_writeback(dev, priv, dpu_kms); > + if (rc) { > + DPU_ERROR("initialize_WB failed, rc = %d\n", rc); > + return rc; > + } > + } > + > return rc; > } >
On 2/4/2022 2:34 PM, Dmitry Baryshkov wrote: > On 05/02/2022 00:17, Abhinav Kumar wrote: >> Initialize dpu encoder and connector for writeback if the >> target supports it in the catalog. >> >> Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com> >> --- >> drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 37 ++++++++++++----- >> drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 62 >> +++++++++++++++++++++++++++++ >> 2 files changed, 88 insertions(+), 11 deletions(-) >> >> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c >> b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c >> index b51a677..3746432 100644 >> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c >> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c >> @@ -2066,7 +2066,7 @@ static void dpu_encoder_early_unregister(struct >> drm_encoder *encoder) >> } >> static int dpu_encoder_virt_add_phys_encs( >> - u32 display_caps, >> + struct msm_display_info *disp_info, >> struct dpu_encoder_virt *dpu_enc, >> struct dpu_enc_phys_init_params *params) >> { >> @@ -2085,7 +2085,7 @@ static int dpu_encoder_virt_add_phys_encs( >> return -EINVAL; >> } >> - if (display_caps & MSM_DISPLAY_CAP_VID_MODE) { >> + if (disp_info->capabilities & MSM_DISPLAY_CAP_VID_MODE) { >> enc = dpu_encoder_phys_vid_init(params); >> if (IS_ERR_OR_NULL(enc)) { >> @@ -2098,7 +2098,7 @@ static int dpu_encoder_virt_add_phys_encs( >> ++dpu_enc->num_phys_encs; >> } >> - if (display_caps & MSM_DISPLAY_CAP_CMD_MODE) { >> + if (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE) { >> enc = dpu_encoder_phys_cmd_init(params); >> if (IS_ERR_OR_NULL(enc)) { >> @@ -2111,6 +2111,19 @@ static int dpu_encoder_virt_add_phys_encs( >> ++dpu_enc->num_phys_encs; >> } >> + if (disp_info->intf_type == DRM_MODE_ENCODER_VIRTUAL) { >> + enc = dpu_encoder_phys_wb_init(params); >> + >> + if (IS_ERR_OR_NULL(enc)) { >> + DPU_ERROR_ENC(dpu_enc, "failed to init wb enc: %ld\n", >> + PTR_ERR(enc)); >> + return enc == NULL ? -EINVAL : PTR_ERR(enc); >> + } >> + >> + dpu_enc->phys_encs[dpu_enc->num_phys_encs] = enc; >> + ++dpu_enc->num_phys_encs; >> + } >> + >> if (params->split_role == ENC_ROLE_SLAVE) >> dpu_enc->cur_slave = enc; >> else >> @@ -2199,9 +2212,8 @@ static int dpu_encoder_setup_display(struct >> dpu_encoder_virt *dpu_enc, >> } >> if (!ret) { >> - ret = >> dpu_encoder_virt_add_phys_encs(disp_info->capabilities, >> - dpu_enc, >> - &phys_params); >> + ret = dpu_encoder_virt_add_phys_encs(disp_info, >> + dpu_enc, &phys_params); >> if (ret) >> DPU_ERROR_ENC(dpu_enc, "failed to add phys encs\n"); >> } >> @@ -2317,11 +2329,14 @@ struct drm_encoder *dpu_encoder_init(struct >> drm_device *dev, >> if (!dpu_enc) >> return ERR_PTR(-ENOMEM); >> - rc = drm_encoder_init(dev, &dpu_enc->base, &dpu_encoder_funcs, >> - drm_enc_mode, NULL); >> - if (rc) { >> - devm_kfree(dev->dev, dpu_enc); >> - return ERR_PTR(rc); >> + /* this is handled by drm_writeback_connector_init for virtual >> encoder */ >> + if (drm_enc_mode != DRM_MODE_ENCODER_VIRTUAL) { >> + rc = drm_encoder_init(dev, &dpu_enc->base, &dpu_encoder_funcs, >> + drm_enc_mode, NULL); >> + if (rc) { >> + devm_kfree(dev->dev, dpu_enc); >> + return ERR_PTR(rc); >> + } >> } >> drm_encoder_helper_add(&dpu_enc->base, &dpu_encoder_helper_funcs); >> diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c >> b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c >> index 47fe11a..6327ba9 100644 >> --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c >> +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c >> @@ -1,5 +1,6 @@ >> // SPDX-License-Identifier: GPL-2.0-only >> /* >> + * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights >> reserved. >> * Copyright (c) 2014-2018, The Linux Foundation. All rights reserved. >> * Copyright (C) 2013 Red Hat >> * Author: Rob Clark <robdclark@gmail.com> >> @@ -15,6 +16,7 @@ >> #include <drm/drm_crtc.h> >> #include <drm/drm_file.h> >> #include <drm/drm_vblank.h> >> +#include <drm/drm_writeback.h> >> #include "msm_drv.h" >> #include "msm_mmu.h" >> @@ -29,6 +31,7 @@ >> #include "dpu_kms.h" >> #include "dpu_plane.h" >> #include "dpu_vbif.h" >> +#include "dpu_writeback.h" >> #define CREATE_TRACE_POINTS >> #include "dpu_trace.h" >> @@ -642,6 +645,56 @@ static int _dpu_kms_initialize_displayport(struct >> drm_device *dev, >> return 0; >> } >> +static int _dpu_kms_initialize_writeback(struct drm_device *dev, >> + struct msm_drm_private *priv, struct dpu_kms *dpu_kms) >> +{ >> + struct drm_encoder *encoder = NULL; >> + struct msm_display_info info; >> + int rc, i; >> + const u32 *wb_formats; >> + int n_formats; >> + >> + encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_VIRTUAL); >> + if (IS_ERR(encoder)) { >> + DPU_ERROR("encoder init failed for dsi display\n"); >> + return PTR_ERR(encoder); >> + } >> + >> + memset(&info, 0, sizeof(info)); >> + >> + for (i = 0; i < dpu_kms->catalog->wb_count; i++) { >> + if (dpu_kms->catalog->wb[i].id == WB_2) { >> + wb_formats = dpu_kms->catalog->wb[i].format_list; >> + n_formats = dpu_kms->catalog->wb[i].num_formats; >> + } >> + } > > If there is no WB_2 in the catalog, then both wb_formats and n_formats > would be unused. Also even if there is no WB_2 you'd still try creating > the writeback below. > > I'd suggest to move dpu_encoder_init() + dpu_writeback_init() + > dpu_encoder_setup() to the separate function. Then you can loop over the > catslog->wb[] and once WB_2 is found, call this new function. Makes sense. Will do this. > >> + >> + rc = dpu_writeback_init(dev, encoder, encoder->helper_private, >> wb_formats, >> + n_formats); >> + if (rc) { >> + DPU_ERROR("dpu_writeback_init, rc = %d\n", rc); >> + drm_encoder_cleanup(encoder); >> + return rc; >> + } >> + >> + priv->encoders[priv->num_encoders++] = encoder; >> + >> + info.num_of_h_tiles = 1; >> + /* use only WB idx 2 instance for DPU */ >> + info.h_tile_instance[0] = WB_2; >> + info.capabilities = MSM_DISPLAY_CAP_HOT_PLUG | MSM_DISPLAY_CAP_EDID; > > these two capabilities are unused in the code. I'd suggest to drop them > from msm_drv.h at all. Let me push that as a separate change but will do it for sure as i dont see its usage either. Will drop this line from this patch. > >> + info.intf_type = encoder->encoder_type; >> + >> + rc = dpu_encoder_setup(dev, encoder, &info); >> + if (rc) { >> + DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n", >> + encoder->base.id, rc); >> + return rc; >> + } >> + >> + return 0; >> +} >> + >> /** >> * _dpu_kms_setup_displays - create encoders, bridges and connectors >> * for underlying displays >> @@ -668,6 +721,15 @@ static int _dpu_kms_setup_displays(struct >> drm_device *dev, >> return rc; >> } >> + /* Since WB isn't a driver check the catalog before initializing */ >> + if (dpu_kms->catalog->wb_count) { >> + rc = _dpu_kms_initialize_writeback(dev, priv, dpu_kms); >> + if (rc) { >> + DPU_ERROR("initialize_WB failed, rc = %d\n", rc); >> + return rc; >> + } >> + } >> + >> return rc; >> } > >
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c index b51a677..3746432 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c @@ -2066,7 +2066,7 @@ static void dpu_encoder_early_unregister(struct drm_encoder *encoder) } static int dpu_encoder_virt_add_phys_encs( - u32 display_caps, + struct msm_display_info *disp_info, struct dpu_encoder_virt *dpu_enc, struct dpu_enc_phys_init_params *params) { @@ -2085,7 +2085,7 @@ static int dpu_encoder_virt_add_phys_encs( return -EINVAL; } - if (display_caps & MSM_DISPLAY_CAP_VID_MODE) { + if (disp_info->capabilities & MSM_DISPLAY_CAP_VID_MODE) { enc = dpu_encoder_phys_vid_init(params); if (IS_ERR_OR_NULL(enc)) { @@ -2098,7 +2098,7 @@ static int dpu_encoder_virt_add_phys_encs( ++dpu_enc->num_phys_encs; } - if (display_caps & MSM_DISPLAY_CAP_CMD_MODE) { + if (disp_info->capabilities & MSM_DISPLAY_CAP_CMD_MODE) { enc = dpu_encoder_phys_cmd_init(params); if (IS_ERR_OR_NULL(enc)) { @@ -2111,6 +2111,19 @@ static int dpu_encoder_virt_add_phys_encs( ++dpu_enc->num_phys_encs; } + if (disp_info->intf_type == DRM_MODE_ENCODER_VIRTUAL) { + enc = dpu_encoder_phys_wb_init(params); + + if (IS_ERR_OR_NULL(enc)) { + DPU_ERROR_ENC(dpu_enc, "failed to init wb enc: %ld\n", + PTR_ERR(enc)); + return enc == NULL ? -EINVAL : PTR_ERR(enc); + } + + dpu_enc->phys_encs[dpu_enc->num_phys_encs] = enc; + ++dpu_enc->num_phys_encs; + } + if (params->split_role == ENC_ROLE_SLAVE) dpu_enc->cur_slave = enc; else @@ -2199,9 +2212,8 @@ static int dpu_encoder_setup_display(struct dpu_encoder_virt *dpu_enc, } if (!ret) { - ret = dpu_encoder_virt_add_phys_encs(disp_info->capabilities, - dpu_enc, - &phys_params); + ret = dpu_encoder_virt_add_phys_encs(disp_info, + dpu_enc, &phys_params); if (ret) DPU_ERROR_ENC(dpu_enc, "failed to add phys encs\n"); } @@ -2317,11 +2329,14 @@ struct drm_encoder *dpu_encoder_init(struct drm_device *dev, if (!dpu_enc) return ERR_PTR(-ENOMEM); - rc = drm_encoder_init(dev, &dpu_enc->base, &dpu_encoder_funcs, - drm_enc_mode, NULL); - if (rc) { - devm_kfree(dev->dev, dpu_enc); - return ERR_PTR(rc); + /* this is handled by drm_writeback_connector_init for virtual encoder */ + if (drm_enc_mode != DRM_MODE_ENCODER_VIRTUAL) { + rc = drm_encoder_init(dev, &dpu_enc->base, &dpu_encoder_funcs, + drm_enc_mode, NULL); + if (rc) { + devm_kfree(dev->dev, dpu_enc); + return ERR_PTR(rc); + } } drm_encoder_helper_add(&dpu_enc->base, &dpu_encoder_helper_funcs); diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c index 47fe11a..6327ba9 100644 --- a/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c +++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0-only /* + * Copyright (c) 2022 Qualcomm Innovation Center, Inc. All rights reserved. * Copyright (c) 2014-2018, The Linux Foundation. All rights reserved. * Copyright (C) 2013 Red Hat * Author: Rob Clark <robdclark@gmail.com> @@ -15,6 +16,7 @@ #include <drm/drm_crtc.h> #include <drm/drm_file.h> #include <drm/drm_vblank.h> +#include <drm/drm_writeback.h> #include "msm_drv.h" #include "msm_mmu.h" @@ -29,6 +31,7 @@ #include "dpu_kms.h" #include "dpu_plane.h" #include "dpu_vbif.h" +#include "dpu_writeback.h" #define CREATE_TRACE_POINTS #include "dpu_trace.h" @@ -642,6 +645,56 @@ static int _dpu_kms_initialize_displayport(struct drm_device *dev, return 0; } +static int _dpu_kms_initialize_writeback(struct drm_device *dev, + struct msm_drm_private *priv, struct dpu_kms *dpu_kms) +{ + struct drm_encoder *encoder = NULL; + struct msm_display_info info; + int rc, i; + const u32 *wb_formats; + int n_formats; + + encoder = dpu_encoder_init(dev, DRM_MODE_ENCODER_VIRTUAL); + if (IS_ERR(encoder)) { + DPU_ERROR("encoder init failed for dsi display\n"); + return PTR_ERR(encoder); + } + + memset(&info, 0, sizeof(info)); + + for (i = 0; i < dpu_kms->catalog->wb_count; i++) { + if (dpu_kms->catalog->wb[i].id == WB_2) { + wb_formats = dpu_kms->catalog->wb[i].format_list; + n_formats = dpu_kms->catalog->wb[i].num_formats; + } + } + + rc = dpu_writeback_init(dev, encoder, encoder->helper_private, wb_formats, + n_formats); + if (rc) { + DPU_ERROR("dpu_writeback_init, rc = %d\n", rc); + drm_encoder_cleanup(encoder); + return rc; + } + + priv->encoders[priv->num_encoders++] = encoder; + + info.num_of_h_tiles = 1; + /* use only WB idx 2 instance for DPU */ + info.h_tile_instance[0] = WB_2; + info.capabilities = MSM_DISPLAY_CAP_HOT_PLUG | MSM_DISPLAY_CAP_EDID; + info.intf_type = encoder->encoder_type; + + rc = dpu_encoder_setup(dev, encoder, &info); + if (rc) { + DPU_ERROR("failed to setup DPU encoder %d: rc:%d\n", + encoder->base.id, rc); + return rc; + } + + return 0; +} + /** * _dpu_kms_setup_displays - create encoders, bridges and connectors * for underlying displays @@ -668,6 +721,15 @@ static int _dpu_kms_setup_displays(struct drm_device *dev, return rc; } + /* Since WB isn't a driver check the catalog before initializing */ + if (dpu_kms->catalog->wb_count) { + rc = _dpu_kms_initialize_writeback(dev, priv, dpu_kms); + if (rc) { + DPU_ERROR("initialize_WB failed, rc = %d\n", rc); + return rc; + } + } + return rc; }
Initialize dpu encoder and connector for writeback if the target supports it in the catalog. Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com> --- drivers/gpu/drm/msm/disp/dpu1/dpu_encoder.c | 37 ++++++++++++----- drivers/gpu/drm/msm/disp/dpu1/dpu_kms.c | 62 +++++++++++++++++++++++++++++ 2 files changed, 88 insertions(+), 11 deletions(-)