mirrors/linux-stable
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git synced 2024-10-04 08:08:54 +00:00
Code Issues Releases Wiki Activity

drm/bridge: ti-sn65dsi86: Add support for the DP AUX bus

Browse source 
We want to provide our panel with access to the DP AUX channel. The
way to do this is to let our panel be a child of ours using the fancy
new DP AUX bus support.

Signed-off-by: Douglas Anderson <dianders@chromium.org>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210611101711.v10.8.Ib5fe0638da85800141ce141bb8e441c5f25438d4@changeid
This commit is contained in:
Douglas Anderson 2021-06-11 10:17:44 -07:00
parent a1e3667a98
commit e0bbcc6233
2 changed files with 7 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

1
drivers/gpu/drm/bridge/Kconfig
View file

@ -303,6 +303,7 @@ config DRM_TI_SN65DSI86
select DRM_PANEL
select DRM_MIPI_DSI
select AUXILIARY_BUS
select DRM_DP_AUX_BUS
help
Texas Instruments SN65DSI86 DSI to eDP Bridge driver

6
drivers/gpu/drm/bridge/ti-sn65dsi86.c
View file

@ -23,6 +23,7 @@
#include <drm/drm_atomic.h>
#include <drm/drm_atomic_helper.h>
#include <drm/drm_bridge.h>
#include <drm/drm_dp_aux_bus.h>
#include <drm/drm_dp_helper.h>
#include <drm/drm_mipi_dsi.h>
#include <drm/drm_of.h>
@ -1426,12 +1427,17 @@ static int ti_sn_aux_probe(struct auxiliary_device *adev,
const struct auxiliary_device_id *id)
{
struct ti_sn65dsi86 *pdata = dev_get_drvdata(adev->dev.parent);
int ret;
pdata->aux.name = "ti-sn65dsi86-aux";
pdata->aux.dev = &adev->dev;
pdata->aux.transfer = ti_sn_aux_transfer;
drm_dp_aux_init(&pdata->aux);
ret = devm_of_dp_aux_populate_ep_devices(&pdata->aux);
if (ret)
return ret;
/*
* The eDP to MIPI bridge parts don't work until the AUX channel is
* setup so we don't add it in the main driver probe, we add it now.