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| author | Douglas Anderson <dianders@chromium.org> | 2024-05-03 14:32:46 -0700 |
|---|---|---|
| committer | Douglas Anderson <dianders@chromium.org> | 2024-05-28 13:09:10 -0700 |
| commit | 1985e3512b5a3777f6a18c36e40f3926037120bb (patch) | |
| tree | 0fbf82c4b092763a4ce67ddb85fa0f1e569b0bbe | |
| parent | 3c24e31c908eb12e99420ff33b74c01f045253fe (diff) | |
| download | lwn-1985e3512b5a3777f6a18c36e40f3926037120bb.tar.gz lwn-1985e3512b5a3777f6a18c36e40f3926037120bb.zip | |
drm/panel: boe-tv101wum-nl6: Don't call unprepare+disable at shutdown/remove
It's the responsibility of a correctly written DRM modeset driver to
call drm_atomic_helper_shutdown() at shutdown time and that should be
disabling / unpreparing the panel if needed. Panel drivers shouldn't
be calling these functions themselves.
A recent effort was made to fix as many DRM modeset drivers as
possible [1] [2] [3] and most drivers are fixed now.
A grep through mainline for compatible strings used by this driver
indicates that it is used by Mediatek and Qualcomm boards. Both of
those drivers appear to be correctly calling
drm_atomic_helper_shutdown() so we can remove the calls.
[1] https://lore.kernel.org/r/20230901234015.566018-1-dianders@chromium.org
[2] https://lore.kernel.org/r/20230901234202.566951-1-dianders@chromium.org
[3] https://lore.kernel.org/r/20230921192749.1542462-1-dianders@chromium.org
Cc: Jitao Shi <jitao.shi@mediatek.com>
Cc: Cong Yang <yangcong5@huaqin.corp-partner.google.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Acked-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Douglas Anderson <dianders@chromium.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20240503143327.RFT.v2.5.I5bd120aa0b7d17a1149ea43cc4852492834058c0@changeid
| -rw-r--r-- | drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c | 11 |
1 files changed, 0 insertions, 11 deletions
diff --git a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c index 8ab8cab83d5c..ce919a980875 100644 --- a/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c +++ b/drivers/gpu/drm/panel/panel-boe-tv101wum-nl6.c @@ -1833,21 +1833,11 @@ static int boe_panel_probe(struct mipi_dsi_device *dsi) return ret; } -static void boe_panel_shutdown(struct mipi_dsi_device *dsi) -{ - struct boe_panel *boe = mipi_dsi_get_drvdata(dsi); - - drm_panel_disable(&boe->base); - drm_panel_unprepare(&boe->base); -} - static void boe_panel_remove(struct mipi_dsi_device *dsi) { struct boe_panel *boe = mipi_dsi_get_drvdata(dsi); int ret; - boe_panel_shutdown(dsi); - ret = mipi_dsi_detach(dsi); if (ret < 0) dev_err(&dsi->dev, "failed to detach from DSI host: %d\n", ret); @@ -1892,7 +1882,6 @@ static struct mipi_dsi_driver boe_panel_driver = { }, .probe = boe_panel_probe, .remove = boe_panel_remove, - .shutdown = boe_panel_shutdown, }; module_mipi_dsi_driver(boe_panel_driver); |