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Message-Id: <20251007054528.2900905-3-suraj.kandpal@intel.com>
Date: Tue, 7 Oct 2025 11:15:24 +0530
From: Suraj Kandpal <suraj.kandpal@...el.com>
To: linux-arm-msm@...r.kernel.org,
freedreno@...ts.freedesktop.org,
dri-devel@...ts.freedesktop.org,
intel-xe@...ts.freedesktop.org,
intel-gfx@...ts.freedesktop.org,
kernel-list@...pberrypi.com,
amd-gfx@...ts.freedesktop.org,
linux-kernel@...r.kernel.org,
linux-renesas-soc@...r.kernel.org
Cc: dmitry.baryshkov@....qualcomm.com,
ankit.k.nautiyal@...el.com,
arun.r.murthy@...el.com,
uma.shankar@...el.com,
jani.nikula@...el.com,
harry.wentland@....com,
siqueira@...lia.com,
alexander.deucher@....com,
christian.koenig@....com,
airlied@...il.com,
simona@...ll.ch,
liviu.dudau@....com,
maarten.lankhorst@...ux.intel.com,
mripard@...nel.org,
robin.clark@....qualcomm.com,
abhinav.kumar@...ux.dev,
tzimmermann@...e.de,
jessica.zhang@....qualcomm.com,
sean@...rly.run,
marijn.suijten@...ainline.org,
laurent.pinchart+renesas@...asonboard.com,
mcanal@...lia.com,
dave.stevenson@...pberrypi.com,
tomi.valkeinen+renesas@...asonboard.com,
kieran.bingham+renesas@...asonboard.com,
louis.chauvet@...tlin.com,
Suraj Kandpal <suraj.kandpal@...el.com>
Subject: [PATCH v2 2/7] drm: writeback: Modify writeback init helpers
Now with drm_writeback_connector moved to drm_connector it makes
more sense use drm_connector as an argument rather than
drm_writeback_connector. The writeback connector can easily be derived
from drm_connector.
Signed-off-by: Suraj Kandpal <suraj.kandpal@...el.com>
---
V1 -> V2: Fix comment, use connector->writeback instead of the function (Dmitry)
---
.../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c | 2 +-
.../drm/arm/display/komeda/komeda_wb_connector.c | 5 +----
drivers/gpu/drm/arm/malidp_mw.c | 2 +-
drivers/gpu/drm/drm_writeback.c | 14 ++++++--------
drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c | 2 +-
.../gpu/drm/renesas/rcar-du/rcar_du_writeback.c | 3 +--
drivers/gpu/drm/vc4/vc4_txp.c | 2 +-
drivers/gpu/drm/vkms/vkms_writeback.c | 4 ++--
include/drm/drm_writeback.h | 4 ++--
9 files changed, 16 insertions(+), 22 deletions(-)
diff --git a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
index 8fea29720989..84a9c1d2bd8e 100644
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_wb.c
@@ -204,7 +204,7 @@ int amdgpu_dm_wb_connector_init(struct amdgpu_display_manager *dm,
drm_connector_helper_add(&wbcon->base, &amdgpu_dm_wb_conn_helper_funcs);
- res = drmm_writeback_connector_init(&dm->adev->ddev, &wbcon->base.writeback,
+ res = drmm_writeback_connector_init(&dm->adev->ddev, &wbcon->base,
&amdgpu_dm_wb_connector_funcs,
encoder,
amdgpu_dm_wb_formats,
diff --git a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
index 69822b9be574..d3dd07491630 100644
--- a/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
+++ b/drivers/gpu/drm/arm/display/komeda/komeda_wb_connector.c
@@ -135,7 +135,6 @@ static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
{
struct komeda_dev *mdev = kms->base.dev_private;
struct komeda_wb_connector *kwb_conn;
- struct drm_writeback_connector *wb_conn;
struct drm_display_info *info;
struct drm_encoder *encoder;
@@ -151,8 +150,6 @@ static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
kwb_conn->wb_layer = kcrtc->master->wb_layer;
- wb_conn = &kwb_conn->base.writeback;
-
formats = komeda_get_layer_fourcc_list(&mdev->fmt_tbl,
kwb_conn->wb_layer->layer_type,
&n_formats);
@@ -170,7 +167,7 @@ static int komeda_wb_connector_add(struct komeda_kms_dev *kms,
encoder->possible_crtcs = BIT(drm_crtc_index(&kcrtc->base));
- err = drmm_writeback_connector_init(&kms->base, wb_conn,
+ err = drmm_writeback_connector_init(&kms->base, &kwb_conn->base,
&komeda_wb_connector_funcs,
encoder,
formats, n_formats);
diff --git a/drivers/gpu/drm/arm/malidp_mw.c b/drivers/gpu/drm/arm/malidp_mw.c
index ea03cb98bfb4..a36a4c86a99e 100644
--- a/drivers/gpu/drm/arm/malidp_mw.c
+++ b/drivers/gpu/drm/arm/malidp_mw.c
@@ -228,7 +228,7 @@ int malidp_mw_connector_init(struct drm_device *drm)
encoder->possible_crtcs = 1 << drm_crtc_index(&malidp->crtc);
- ret = drmm_writeback_connector_init(drm, &malidp->mw_connector.writeback,
+ ret = drmm_writeback_connector_init(drm, &malidp->mw_connector,
&malidp_mw_connector_funcs,
encoder,
formats, n_formats);
diff --git a/drivers/gpu/drm/drm_writeback.c b/drivers/gpu/drm/drm_writeback.c
index 72277127f20e..3436a742d403 100644
--- a/drivers/gpu/drm/drm_writeback.c
+++ b/drivers/gpu/drm/drm_writeback.c
@@ -242,7 +242,7 @@ static int __drm_writeback_connector_init(struct drm_device *dev,
* a custom encoder
*
* @dev: DRM device
- * @wb_connector: Writeback connector to initialize
+ * @connector: Drm connector which contains the writeback connector to initialize
* @enc: handle to the already initialized drm encoder
* @con_funcs: Connector funcs vtable
* @formats: Array of supported pixel formats for the writeback engine
@@ -267,13 +267,12 @@ static int __drm_writeback_connector_init(struct drm_device *dev,
* Returns: 0 on success, or a negative error code
*/
int drm_writeback_connector_init(struct drm_device *dev,
- struct drm_writeback_connector *wb_connector,
+ struct drm_connector *connector,
const struct drm_connector_funcs *con_funcs,
struct drm_encoder *enc,
const u32 *formats, int n_formats)
{
- struct drm_connector *connector =
- drm_writeback_to_connector(wb_connector);
+ struct drm_writeback_connector *wb_connector = &connector->writeback;
int ret;
ret = drm_connector_init(dev, connector, con_funcs,
@@ -322,7 +321,7 @@ static void drm_writeback_connector_cleanup(struct drm_device *dev,
* a custom encoder
*
* @dev: DRM device
- * @wb_connector: Writeback connector to initialize
+ * @connector: Drm connector containing the writeback connector to initialize
* @con_funcs: Connector funcs vtable
* @enc: Encoder to connect this writeback connector
* @formats: Array of supported pixel formats for the writeback engine
@@ -338,13 +337,12 @@ static void drm_writeback_connector_cleanup(struct drm_device *dev,
* Returns: 0 on success, or a negative error code
*/
int drmm_writeback_connector_init(struct drm_device *dev,
- struct drm_writeback_connector *wb_connector,
+ struct drm_connector *connector,
const struct drm_connector_funcs *con_funcs,
struct drm_encoder *enc,
const u32 *formats, int n_formats)
{
- struct drm_connector *connector =
- drm_writeback_to_connector(wb_connector);
+ struct drm_writeback_connector *wb_connector = &connector->writeback;
int ret;
ret = drmm_connector_init(dev, connector, con_funcs,
diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c
index 49412d2ed9aa..8d29e09952c5 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_writeback.c
@@ -132,7 +132,7 @@ int dpu_writeback_init(struct drm_device *dev, struct drm_encoder *enc,
drm_connector_helper_add(&dpu_wb_conn->base, &dpu_wb_conn_helper_funcs);
- rc = drmm_writeback_connector_init(dev, &dpu_wb_conn->base.writeback,
+ rc = drmm_writeback_connector_init(dev, &dpu_wb_conn->base,
&dpu_wb_conn_funcs, enc,
format_list, num_formats);
diff --git a/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c b/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
index 186efe019891..fe6764620739 100644
--- a/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
+++ b/drivers/gpu/drm/renesas/rcar-du/rcar_du_writeback.c
@@ -203,7 +203,6 @@ static const u32 writeback_formats[] = {
int rcar_du_writeback_init(struct rcar_du_device *rcdu,
struct rcar_du_crtc *rcrtc)
{
- struct drm_writeback_connector *wb_conn = &rcrtc->writeback.writeback;
struct drm_encoder *encoder;
encoder = drmm_plain_encoder_alloc(&rcdu->ddev, NULL,
@@ -218,7 +217,7 @@ int rcar_du_writeback_init(struct rcar_du_device *rcdu,
drm_connector_helper_add(&rcrtc->writeback,
&rcar_du_wb_conn_helper_funcs);
- return drmm_writeback_connector_init(&rcdu->ddev, wb_conn,
+ return drmm_writeback_connector_init(&rcdu->ddev, &rcrtc->writeback,
&rcar_du_wb_conn_funcs,
encoder,
writeback_formats,
diff --git a/drivers/gpu/drm/vc4/vc4_txp.c b/drivers/gpu/drm/vc4/vc4_txp.c
index 2428807e9714..a53e3aa41f63 100644
--- a/drivers/gpu/drm/vc4/vc4_txp.c
+++ b/drivers/gpu/drm/vc4/vc4_txp.c
@@ -600,7 +600,7 @@ static int vc4_txp_bind(struct device *dev, struct device *master, void *data)
drm_connector_helper_add(&txp->connector,
&vc4_txp_connector_helper_funcs);
- ret = drmm_writeback_connector_init(drm, &txp->connector.writeback,
+ ret = drmm_writeback_connector_init(drm, &txp->connector,
&vc4_txp_connector_funcs,
encoder,
drm_fmts, ARRAY_SIZE(drm_fmts));
diff --git a/drivers/gpu/drm/vkms/vkms_writeback.c b/drivers/gpu/drm/vkms/vkms_writeback.c
index 6b4d1c4a1830..d897a83e3b36 100644
--- a/drivers/gpu/drm/vkms/vkms_writeback.c
+++ b/drivers/gpu/drm/vkms/vkms_writeback.c
@@ -169,7 +169,6 @@ static const struct drm_connector_helper_funcs vkms_wb_conn_helper_funcs = {
int vkms_enable_writeback_connector(struct vkms_device *vkmsdev,
struct vkms_output *vkms_output)
{
- struct drm_writeback_connector *wb = &vkms_output->wb_connector.writeback;
int ret;
ret = drmm_encoder_init(&vkmsdev->drm, &vkms_output->wb_encoder,
@@ -182,7 +181,8 @@ int vkms_enable_writeback_connector(struct vkms_device *vkmsdev,
drm_connector_helper_add(&vkms_output->wb_connector, &vkms_wb_conn_helper_funcs);
- return drmm_writeback_connector_init(&vkmsdev->drm, wb,
+ return drmm_writeback_connector_init(&vkmsdev->drm,
+ &vkms_output->wb_connector,
&vkms_wb_connector_funcs,
&vkms_output->wb_encoder,
vkms_wb_formats,
diff --git a/include/drm/drm_writeback.h b/include/drm/drm_writeback.h
index 702141099520..c6960c7e634e 100644
--- a/include/drm/drm_writeback.h
+++ b/include/drm/drm_writeback.h
@@ -78,13 +78,13 @@ drm_writeback_to_connector(struct drm_writeback_connector *wb_connector)
}
int drm_writeback_connector_init(struct drm_device *dev,
- struct drm_writeback_connector *wb_connector,
+ struct drm_connector *connector,
const struct drm_connector_funcs *con_funcs,
struct drm_encoder *enc,
const u32 *formats, int n_formats);
int drmm_writeback_connector_init(struct drm_device *dev,
- struct drm_writeback_connector *wb_connector,
+ struct drm_connector *connector,
const struct drm_connector_funcs *con_funcs,
struct drm_encoder *enc,
const u32 *formats, int n_formats);
--
2.34.1
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