@@ -11,10 +11,13 @@
#include <linux/math64.h>
#include <linux/module.h>
#include <linux/of_device.h>
+#include <linux/pm_opp.h>
#include <linux/pm_runtime.h>
#include <linux/regulator/consumer.h>
#include <linux/reset.h>
+#include <soc/tegra/common.h>
+
#include <drm/drm_atomic_helper.h>
#include <drm/drm_crtc.h>
#include <drm/drm_debugfs.h>
@@ -1195,7 +1198,7 @@ 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);
@@ -1516,6 +1519,12 @@ static int tegra_hdmi_runtime_resume(struct host1x_client *client)
return err;
}
+ err = dev_pm_opp_sync(dev);
+ if (err) {
+ dev_err(dev, "failed to sync OPP: %d\n", err);
+ goto put_rpm;
+ }
+
err = clk_prepare_enable(hdmi->clk);
if (err < 0) {
dev_err(dev, "failed to enable clock: %d\n", err);
@@ -1708,6 +1717,10 @@ static int tegra_hdmi_probe(struct platform_device *pdev)
hdmi->output.dev = &pdev->dev;
+ err = devm_tegra_core_dev_init_opp_table_simple(&pdev->dev);
+ if (err)
+ return err;
+
err = tegra_output_probe(&hdmi->output);
if (err < 0)
return err;
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. Signed-off-by: Dmitry Osipenko <digetx@gmail.com> --- drivers/gpu/drm/tegra/hdmi.c | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-)