Enable PM Runtime at the end of mtk_dsi_probe() so that the mediatek-drm mtk_ddp_comp_power_on() function is able to do pm_runtime_resume_and_get() and, analogously, the function mtk_ddp_comp_power_off() to pm_runtime_put() for the DSI device.
This makes sure that the power domains for the DSI IP are turned on and off when necessary. Signed-off-by: AngeloGioacchino Del Regno <[email protected]> --- drivers/gpu/drm/mediatek/mtk_dsi.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/drivers/gpu/drm/mediatek/mtk_dsi.c b/drivers/gpu/drm/mediatek/mtk_dsi.c index 93bc507d77e2..1726f5a2683c 100644 --- a/drivers/gpu/drm/mediatek/mtk_dsi.c +++ b/drivers/gpu/drm/mediatek/mtk_dsi.c @@ -1731,6 +1731,10 @@ static int mtk_dsi_probe(struct platform_device *pdev) if (ret) return dev_err_probe(&pdev->dev, ret, "Failed to request DSI irq\n"); + ret = devm_pm_runtime_enable(dev); + if (ret) + return ret; + ret = mipi_dsi_host_register(&dsi->host); if (ret < 0) return dev_err_probe(dev, ret, "Failed to register DSI host\n"); -- 2.54.0
