diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 125 |
1 files changed, 71 insertions, 54 deletions
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index 50269ffbcb6b..6f117628f257 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -1146,6 +1146,7 @@ static void tegra_hdmi_encoder_disable(struct drm_encoder *encoder) struct tegra_dc *dc = to_tegra_dc(encoder->crtc); struct tegra_hdmi *hdmi = to_hdmi(output); u32 value; + int err; /* * The following accesses registers of the display controller, so make @@ -1171,7 +1172,9 @@ static void tegra_hdmi_encoder_disable(struct drm_encoder *encoder) tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_INT_ENABLE); tegra_hdmi_writel(hdmi, 0, HDMI_NV_PDISP_INT_MASK); - pm_runtime_put(hdmi->dev); + err = host1x_client_suspend(&hdmi->client); + if (err < 0) + dev_err(hdmi->dev, "failed to suspend: %d\n", err); } static void tegra_hdmi_encoder_enable(struct drm_encoder *encoder) @@ -1186,7 +1189,11 @@ static void tegra_hdmi_encoder_enable(struct drm_encoder *encoder) u32 value; int err; - pm_runtime_get_sync(hdmi->dev); + err = host1x_client_resume(&hdmi->client); + if (err < 0) { + dev_err(hdmi->dev, "failed to resume: %d\n", err); + return; + } /* * Enable and unmask the HDA codec SCRATCH0 register interrupt. This @@ -1424,15 +1431,16 @@ static const struct drm_encoder_helper_funcs tegra_hdmi_encoder_helper_funcs = { static int tegra_hdmi_init(struct host1x_client *client) { - struct drm_device *drm = dev_get_drvdata(client->parent); struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); + struct drm_device *drm = dev_get_drvdata(client->host); int err; hdmi->output.dev = client->dev; - drm_connector_init(drm, &hdmi->output.connector, - &tegra_hdmi_connector_funcs, - DRM_MODE_CONNECTOR_HDMIA); + drm_connector_init_with_ddc(drm, &hdmi->output.connector, + &tegra_hdmi_connector_funcs, + DRM_MODE_CONNECTOR_HDMIA, + hdmi->output.ddc); drm_connector_helper_add(&hdmi->output.connector, &tegra_hdmi_connector_helper_funcs); hdmi->output.connector.dpms = DRM_MODE_DPMS_OFF; @@ -1489,9 +1497,66 @@ static int tegra_hdmi_exit(struct host1x_client *client) return 0; } +static int tegra_hdmi_runtime_suspend(struct host1x_client *client) +{ + struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); + struct device *dev = client->dev; + int err; + + err = reset_control_assert(hdmi->rst); + if (err < 0) { + dev_err(dev, "failed to assert reset: %d\n", err); + return err; + } + + usleep_range(1000, 2000); + + clk_disable_unprepare(hdmi->clk); + pm_runtime_put_sync(dev); + + return 0; +} + +static int tegra_hdmi_runtime_resume(struct host1x_client *client) +{ + struct tegra_hdmi *hdmi = host1x_client_to_hdmi(client); + struct device *dev = client->dev; + int err; + + err = pm_runtime_get_sync(dev); + if (err < 0) { + dev_err(dev, "failed to get runtime PM: %d\n", err); + return err; + } + + err = clk_prepare_enable(hdmi->clk); + if (err < 0) { + dev_err(dev, "failed to enable clock: %d\n", err); + goto put_rpm; + } + + usleep_range(1000, 2000); + + err = reset_control_deassert(hdmi->rst); + if (err < 0) { + dev_err(dev, "failed to deassert reset: %d\n", err); + goto disable_clk; + } + + return 0; + +disable_clk: + clk_disable_unprepare(hdmi->clk); +put_rpm: + pm_runtime_put_sync(dev); + return err; +} + static const struct host1x_client_ops hdmi_client_ops = { .init = tegra_hdmi_init, .exit = tegra_hdmi_exit, + .suspend = tegra_hdmi_runtime_suspend, + .resume = tegra_hdmi_runtime_resume, }; static const struct tegra_hdmi_config tegra20_hdmi_config = { @@ -1699,58 +1764,10 @@ static int tegra_hdmi_remove(struct platform_device *pdev) return 0; } -#ifdef CONFIG_PM -static int tegra_hdmi_suspend(struct device *dev) -{ - struct tegra_hdmi *hdmi = dev_get_drvdata(dev); - int err; - - err = reset_control_assert(hdmi->rst); - if (err < 0) { - dev_err(dev, "failed to assert reset: %d\n", err); - return err; - } - - usleep_range(1000, 2000); - - clk_disable_unprepare(hdmi->clk); - - return 0; -} - -static int tegra_hdmi_resume(struct device *dev) -{ - struct tegra_hdmi *hdmi = dev_get_drvdata(dev); - int err; - - err = clk_prepare_enable(hdmi->clk); - if (err < 0) { - dev_err(dev, "failed to enable clock: %d\n", err); - return err; - } - - usleep_range(1000, 2000); - - err = reset_control_deassert(hdmi->rst); - if (err < 0) { - dev_err(dev, "failed to deassert reset: %d\n", err); - clk_disable_unprepare(hdmi->clk); - return err; - } - - return 0; -} -#endif - -static const struct dev_pm_ops tegra_hdmi_pm_ops = { - SET_RUNTIME_PM_OPS(tegra_hdmi_suspend, tegra_hdmi_resume, NULL) -}; - struct platform_driver tegra_hdmi_driver = { .driver = { .name = "tegra-hdmi", .of_match_table = tegra_hdmi_of_match, - .pm = &tegra_hdmi_pm_ops, }, .probe = tegra_hdmi_probe, .remove = tegra_hdmi_remove, |