In case the PHY is not initialized, do it in samsung_dsim_enable(), otherwise the link configuration registers are not programmed at all. Signed-off-by: Marek Vasut <marex@xxxxxxx> Cc: Fabio Estevam <festevam@xxxxxxxxx> Cc: Guido Günther <agx@xxxxxxxxxxx> Cc: Jaehoon Chung <jh80.chung@xxxxxxxxxxx> Cc: Lucas Stach <l.stach@xxxxxxxxxxxxxx> Cc: Marek Szyprowski <m.szyprowski@xxxxxxxxxxx> Cc: Michael Tretter <m.tretter@xxxxxxxxxxxxxx> Cc: NXP Linux Team <linux-imx@xxxxxxx> Cc: Shawn Guo <shawnguo@xxxxxxxxxx> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx Cc: linux-samsung-soc@xxxxxxxxxxxxxxx To: dri-devel@xxxxxxxxxxxxxxxxxxxxx -- NOTE: This depends on https://patchwork.kernel.org/project/dri-devel/list/?series=347439 --- drivers/gpu/drm/bridge/samsung-dsim.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/drivers/gpu/drm/bridge/samsung-dsim.c b/drivers/gpu/drm/bridge/samsung-dsim.c index 6d2d8dc027de..fbd87a74eb9f 100644 --- a/drivers/gpu/drm/bridge/samsung-dsim.c +++ b/drivers/gpu/drm/bridge/samsung-dsim.c @@ -1244,6 +1244,13 @@ static void samsung_dsim_enable(struct samsung_dsim *dsi) pm_runtime_get_sync(dsi->dev); dsi->state |= DSIM_STATE_ENABLED; + if (!(dsi->state & DSIM_STATE_INITIALIZED)) { + ret = samsung_dsim_init(dsi); + if (ret) + return; + dsi->state |= DSIM_STATE_INITIALIZED; + } + if (dsi->panel) { ret = drm_panel_prepare(dsi->panel); if (ret < 0) -- 2.28.0 _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
