From 6efdde0cd08b8fe79f20e2c150260f19e762e4d0 Mon Sep 17 00:00:00 2001 From: Dmitry Osipenko Date: Wed, 1 Dec 2021 02:23:19 +0300 Subject: [PATCH] drm/tegra: hdmi: Add OPP support The HDMI on Tegra belongs to the core power domain and we're going to enable GENPD support for the core domain. Now HDMI driver must use OPP API for driving the controller's clock rate because OPP API takes care of reconfiguring the domain's performance state based on HDMI clock rate. Add OPP support to the HDMI driver. Reviewed-by: Ulf Hansson Signed-off-by: Dmitry Osipenko Signed-off-by: Thierry Reding --- drivers/gpu/drm/tegra/hdmi.c | 15 +++++++++++---- 1 file changed, 11 insertions(+), 4 deletions(-) diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index ce917d46b23a..8845af5d325f 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -11,10 +11,12 @@ #include #include #include +#include #include #include #include +#include #include #include @@ -1237,7 +1239,7 @@ static void tegra_hdmi_encoder_enable(struct drm_encoder *encoder) h_back_porch = mode->htotal - mode->hsync_end; h_front_porch = mode->hsync_start - mode->hdisplay; - err = clk_set_rate(hdmi->clk, hdmi->pixel_clock); + err = dev_pm_opp_set_rate(hdmi->dev, hdmi->pixel_clock); if (err < 0) { dev_err(hdmi->dev, "failed to set HDMI clock frequency: %d\n", err); @@ -1872,7 +1874,14 @@ static int tegra_hdmi_probe(struct platform_device *pdev) } platform_set_drvdata(pdev, hdmi); - pm_runtime_enable(&pdev->dev); + + err = devm_pm_runtime_enable(&pdev->dev); + if (err) + return err; + + err = devm_tegra_core_dev_init_opp_table_common(&pdev->dev); + if (err) + return err; INIT_LIST_HEAD(&hdmi->client.list); hdmi->client.ops = &hdmi_client_ops; @@ -1893,8 +1902,6 @@ static int tegra_hdmi_remove(struct platform_device *pdev) struct tegra_hdmi *hdmi = platform_get_drvdata(pdev); int err; - pm_runtime_disable(&pdev->dev); - err = host1x_client_unregister(&hdmi->client); if (err < 0) { dev_err(&pdev->dev, "failed to unregister host1x client: %d\n", -- 2.11.0