diff options
Diffstat (limited to 'drivers/gpu/drm/tegra/hdmi.c')
| -rw-r--r-- | drivers/gpu/drm/tegra/hdmi.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/gpu/drm/tegra/hdmi.c b/drivers/gpu/drm/tegra/hdmi.c index 728681a3f8c9..abb1ea0385ec 100644 --- a/drivers/gpu/drm/tegra/hdmi.c +++ b/drivers/gpu/drm/tegra/hdmi.c @@ -1081,6 +1081,27 @@ static void tegra_hdmi_encoder_disable(struct drm_encoder *encoder) } } +static int +tegra_hdmi_encoder_atomic_check(struct drm_encoder *encoder, + struct drm_crtc_state *crtc_state, + struct drm_connector_state *conn_state) +{ + struct tegra_output *output = encoder_to_output(encoder); + struct tegra_dc *dc = to_tegra_dc(conn_state->crtc); + unsigned long pclk = crtc_state->mode.clock * 1000; + struct tegra_hdmi *hdmi = to_hdmi(output); + int err; + + err = tegra_dc_state_setup_clock(dc, crtc_state, hdmi->clk_parent, + pclk, 0); + if (err < 0) { + dev_err(output->dev, "failed to setup CRTC state: %d\n", err); + return err; + } + + return err; +} + static const struct drm_encoder_helper_funcs tegra_hdmi_encoder_helper_funcs = { .dpms = tegra_hdmi_encoder_dpms, .mode_fixup = tegra_hdmi_encoder_mode_fixup, @@ -1088,6 +1109,7 @@ static const struct drm_encoder_helper_funcs tegra_hdmi_encoder_helper_funcs = { .commit = tegra_hdmi_encoder_commit, .mode_set = tegra_hdmi_encoder_mode_set, .disable = tegra_hdmi_encoder_disable, + .atomic_check = tegra_hdmi_encoder_atomic_check, }; static int tegra_hdmi_show_regs(struct seq_file *s, void *data) |