diff options
| author | Luca Ceresoli <luca.ceresoli@bootlin.com> | 2025-05-09 15:53:43 +0200 |
|---|---|---|
| committer | Luca Ceresoli <luca.ceresoli@bootlin.com> | 2025-05-21 13:40:09 +0200 |
| commit | afb903c01b2b7af382392024fb02bbfea62696f7 (patch) | |
| tree | aacd18ed2bc6d07488eb75353254ae3a8d5b4918 | |
| parent | 3d3f22799c89e6d0d210e0f666c77b3de11429d4 (diff) | |
drm: zynqmp_dp: convert to devm_drm_bridge_alloc() API
This is the new API for allocating DRM bridges.
This driver has a peculiar structure. zynqmp_dpsub.c is the actual driver,
which delegates to a submodule (zynqmp_dp.c) the allocation of a
sub-structure embedding the drm_bridge and its initialization, however it
does not delegate the drm_bridge_add(). Hence, following carefully the code
flow, it is correct to change the allocation function and .funcs assignment
in the submodule, while the drm_bridge_add() is not in that submodule.
Acked-by: Maxime Ripard <mripard@kernel.org>
Link: https://lore.kernel.org/r/20250509-drm-bridge-convert-to-alloc-api-v3-17-b8bc1f16d7aa@bootlin.com
Signed-off-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_dp.c | 31 | ||||
| -rw-r--r-- | drivers/gpu/drm/xlnx/zynqmp_dpsub.c | 1 |
2 files changed, 11 insertions, 21 deletions
diff --git a/drivers/gpu/drm/xlnx/zynqmp_dp.c b/drivers/gpu/drm/xlnx/zynqmp_dp.c index 238cbb49963e..02e1feaa6115 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dp.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dp.c @@ -2439,9 +2439,9 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub) struct zynqmp_dp *dp; int ret; - dp = kzalloc(sizeof(*dp), GFP_KERNEL); - if (!dp) - return -ENOMEM; + dp = devm_drm_bridge_alloc(&pdev->dev, struct zynqmp_dp, bridge, &zynqmp_dp_bridge_funcs); + if (IS_ERR(dp)) + return PTR_ERR(dp); dp->dev = &pdev->dev; dp->dpsub = dpsub; @@ -2454,31 +2454,25 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub) /* Acquire all resources (IOMEM, IRQ and PHYs). */ dp->iomem = devm_platform_ioremap_resource_byname(pdev, "dp"); - if (IS_ERR(dp->iomem)) { - ret = PTR_ERR(dp->iomem); - goto err_free; - } + if (IS_ERR(dp->iomem)) + return PTR_ERR(dp->iomem); dp->irq = platform_get_irq(pdev, 0); - if (dp->irq < 0) { - ret = dp->irq; - goto err_free; - } + if (dp->irq < 0) + return dp->irq; dp->reset = devm_reset_control_get(dp->dev, NULL); - if (IS_ERR(dp->reset)) { - ret = dev_err_probe(dp->dev, PTR_ERR(dp->reset), + if (IS_ERR(dp->reset)) + return dev_err_probe(dp->dev, PTR_ERR(dp->reset), "failed to get reset\n"); - goto err_free; - } ret = zynqmp_dp_reset(dp, true); if (ret < 0) - goto err_free; + return ret; ret = zynqmp_dp_reset(dp, false); if (ret < 0) - goto err_free; + return ret; ret = zynqmp_dp_phy_probe(dp); if (ret) @@ -2486,7 +2480,6 @@ int zynqmp_dp_probe(struct zynqmp_dpsub *dpsub) /* Initialize the bridge. */ bridge = &dp->bridge; - bridge->funcs = &zynqmp_dp_bridge_funcs; bridge->ops = DRM_BRIDGE_OP_DETECT | DRM_BRIDGE_OP_EDID | DRM_BRIDGE_OP_HPD; bridge->type = DRM_MODE_CONNECTOR_DisplayPort; @@ -2539,8 +2532,6 @@ err_phy_exit: zynqmp_dp_phy_exit(dp); err_reset: zynqmp_dp_reset(dp, true); -err_free: - kfree(dp); return ret; } diff --git a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c index 3a9544b97bc5..2764c4b17c5e 100644 --- a/drivers/gpu/drm/xlnx/zynqmp_dpsub.c +++ b/drivers/gpu/drm/xlnx/zynqmp_dpsub.c @@ -180,7 +180,6 @@ static int zynqmp_dpsub_parse_dt(struct zynqmp_dpsub *dpsub) void zynqmp_dpsub_release(struct zynqmp_dpsub *dpsub) { kfree(dpsub->disp); - kfree(dpsub->dp); kfree(dpsub); } |