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drm/tegra: dsi: Restore DPMS
In order to restore DPMS with atomic mode-setting, move all code from the ->mode_set() callback into ->enable(). At the same time, rename the ->prepare() callback to ->disable() to use the names preferred by atomic mode-setting. This simplifies the calling sequence and will allow DPMS to use runtime PM in subsequent patches. Signed-off-by: Thierry Reding <treding@nvidia.com>
This commit is contained in:
parent
29871b21c4
commit
171e2e6dd9
1 changed files with 55 additions and 63 deletions
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@ -119,6 +119,16 @@ static int tegra_dsi_show_regs(struct seq_file *s, void *data)
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{
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struct drm_info_node *node = s->private;
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struct tegra_dsi *dsi = node->info_ent->data;
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struct drm_crtc *crtc = dsi->output.encoder.crtc;
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struct drm_device *drm = node->minor->dev;
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int err = 0;
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drm_modeset_lock_all(drm);
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if (!crtc || !crtc->state->active) {
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err = -EBUSY;
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goto unlock;
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}
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#define DUMP_REG(name) \
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seq_printf(s, "%-32s %#05x %08x\n", #name, name, \
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@ -208,7 +218,9 @@ static int tegra_dsi_show_regs(struct seq_file *s, void *data)
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#undef DUMP_REG
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return 0;
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unlock:
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drm_modeset_unlock_all(drm);
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return err;
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}
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static struct drm_info_list debugfs_files[] = {
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@ -731,10 +743,6 @@ static void tegra_dsi_soft_reset(struct tegra_dsi *dsi)
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tegra_dsi_soft_reset(dsi->slave);
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}
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static void tegra_dsi_connector_dpms(struct drm_connector *connector, int mode)
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{
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}
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static void tegra_dsi_connector_reset(struct drm_connector *connector)
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{
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struct tegra_dsi_state *state;
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@ -761,7 +769,7 @@ tegra_dsi_connector_duplicate_state(struct drm_connector *connector)
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}
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static const struct drm_connector_funcs tegra_dsi_connector_funcs = {
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.dpms = tegra_dsi_connector_dpms,
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.dpms = drm_atomic_helper_connector_dpms,
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.reset = tegra_dsi_connector_reset,
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.detect = tegra_output_connector_detect,
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.fill_modes = drm_helper_probe_single_connector_modes,
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@ -787,59 +795,6 @@ static const struct drm_encoder_funcs tegra_dsi_encoder_funcs = {
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.destroy = tegra_output_encoder_destroy,
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};
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static void tegra_dsi_encoder_dpms(struct drm_encoder *encoder, int mode)
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{
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}
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static void tegra_dsi_encoder_prepare(struct drm_encoder *encoder)
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{
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}
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static void tegra_dsi_encoder_commit(struct drm_encoder *encoder)
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{
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}
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static void tegra_dsi_encoder_mode_set(struct drm_encoder *encoder,
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struct drm_display_mode *mode,
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struct drm_display_mode *adjusted)
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{
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struct tegra_output *output = encoder_to_output(encoder);
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struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
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struct tegra_dsi *dsi = to_dsi(output);
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struct tegra_dsi_state *state;
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u32 value;
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state = tegra_dsi_get_state(dsi);
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tegra_dsi_set_timeout(dsi, state->bclk, state->vrefresh);
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/*
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* The D-PHY timing fields are expressed in byte-clock cycles, so
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* multiply the period by 8.
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*/
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tegra_dsi_set_phy_timing(dsi, state->period * 8, &state->timing);
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if (output->panel)
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drm_panel_prepare(output->panel);
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tegra_dsi_configure(dsi, dc->pipe, mode);
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/* enable display controller */
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value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
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value |= DSI_ENABLE;
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tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
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tegra_dc_commit(dc);
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/* enable DSI controller */
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tegra_dsi_enable(dsi);
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if (output->panel)
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drm_panel_enable(output->panel);
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return;
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}
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static void tegra_dsi_encoder_disable(struct drm_encoder *encoder)
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{
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struct tegra_output *output = encoder_to_output(encoder);
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@ -879,6 +834,46 @@ static void tegra_dsi_encoder_disable(struct drm_encoder *encoder)
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return;
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}
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static void tegra_dsi_encoder_enable(struct drm_encoder *encoder)
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{
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struct drm_display_mode *mode = &encoder->crtc->state->adjusted_mode;
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struct tegra_output *output = encoder_to_output(encoder);
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struct tegra_dc *dc = to_tegra_dc(encoder->crtc);
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struct tegra_dsi *dsi = to_dsi(output);
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struct tegra_dsi_state *state;
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u32 value;
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state = tegra_dsi_get_state(dsi);
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tegra_dsi_set_timeout(dsi, state->bclk, state->vrefresh);
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/*
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* The D-PHY timing fields are expressed in byte-clock cycles, so
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* multiply the period by 8.
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*/
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tegra_dsi_set_phy_timing(dsi, state->period * 8, &state->timing);
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if (output->panel)
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drm_panel_prepare(output->panel);
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tegra_dsi_configure(dsi, dc->pipe, mode);
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/* enable display controller */
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value = tegra_dc_readl(dc, DC_DISP_DISP_WIN_OPTIONS);
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value |= DSI_ENABLE;
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tegra_dc_writel(dc, value, DC_DISP_DISP_WIN_OPTIONS);
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tegra_dc_commit(dc);
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/* enable DSI controller */
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tegra_dsi_enable(dsi);
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if (output->panel)
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drm_panel_enable(output->panel);
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return;
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}
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static int
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tegra_dsi_encoder_atomic_check(struct drm_encoder *encoder,
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struct drm_crtc_state *crtc_state,
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@ -961,11 +956,8 @@ tegra_dsi_encoder_atomic_check(struct drm_encoder *encoder,
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}
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static const struct drm_encoder_helper_funcs tegra_dsi_encoder_helper_funcs = {
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.dpms = tegra_dsi_encoder_dpms,
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.prepare = tegra_dsi_encoder_prepare,
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.commit = tegra_dsi_encoder_commit,
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.mode_set = tegra_dsi_encoder_mode_set,
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.disable = tegra_dsi_encoder_disable,
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.enable = tegra_dsi_encoder_enable,
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.atomic_check = tegra_dsi_encoder_atomic_check,
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};
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