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| author |   Thierry Reding <treding@nvidia.com> | 2021-12-20 11:28:22 +0100 |
|---|---|---|
| committer | Thierry Reding <treding@nvidia.com> | 2022-02-23 13:00:37 +0100 |
| commit | 8913e1aea4b32a866343b14e565c62cec54f3f78 (patch) | |
| tree | 37cf6488e46c588e11c2564b73f0dad27b6deacb /drivers/gpu/drm/tegra/dpaux.c | |
| parent | drm/tegra: Fix cast to restricted __le32 (diff) | |
| download | linux-dev-8913e1aea4b32a866343b14e565c62cec54f3f78.tar.xz linux-dev-8913e1aea4b32a866343b14e565c62cec54f3f78.zip | |
drm/tegra: dpaux: Populate AUX bus
The DPAUX hardware block exposes an DP AUX interface that provides
access to an AUX bus and the devices on that bus. Use the DP AUX bus
infrastructure that was recently introduced to probe devices on this
bus from DT.
Signed-off-by: Thierry Reding <treding@nvidia.com>
Diffstat (limited to 'drivers/gpu/drm/tegra/dpaux.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/dpaux.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/dpaux.c b/drivers/gpu/drm/tegra/dpaux.c index 1f96e416fa08..d7a731d287d2 100644 --- a/drivers/gpu/drm/tegra/dpaux.c +++ b/drivers/gpu/drm/tegra/dpaux.c @@ -19,6 +19,7 @@ #include <linux/workqueue.h> #include <drm/drm_dp_helper.h> +#include <drm/drm_dp_aux_bus.h> #include <drm/drm_panel.h> #include "dp.h" @@ -570,6 +571,12 @@ static int tegra_dpaux_probe(struct platform_device *pdev) list_add_tail(&dpaux->list, &dpaux_list); mutex_unlock(&dpaux_lock); + err = devm_of_dp_aux_populate_ep_devices(&dpaux->aux); + if (err < 0) { + dev_err(dpaux->dev, "failed to populate AUX bus: %d\n", err); + return err; + } + return 0; } |