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drm/i915/dsi: Implement encoder->shutdown() for icl+ 

Plug in the encoder->shutdown() hook for icl+ DSI so that
we are guaranteed to respect the power cycle delay during
reboots and whatnot.

Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230608203057.23759-8-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2023-06-08 23:30:51 +03:00
parent 201963a827
commit e39724769d
4 changed files with 9 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/gpu/drm/i915/display/icl_dsi.c
View File

@ -1979,6 +1979,7 @@ void icl_dsi_init(struct drm_i915_private *dev_priv)
encoder->get_power_domains = gen11_dsi_get_power_domains;
encoder->disable_clock = gen11_dsi_gate_clocks;
encoder->is_clock_enabled = gen11_dsi_is_clock_enabled;
encoder->shutdown = intel_dsi_shutdown;
/* register DSI connector with DRM subsystem */
drm_connector_init(&dev_priv->drm, connector, &gen11_dsi_connector_funcs,

7
drivers/gpu/drm/i915/display/intel_dsi.c
View File

@ -22,6 +22,13 @@ void intel_dsi_wait_panel_power_cycle(struct intel_dsi *intel_dsi)
msleep(intel_dsi->panel_pwr_cycle_delay - panel_power_off_duration);
}
void intel_dsi_shutdown(struct intel_encoder *encoder)
{
struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
intel_dsi_wait_panel_power_cycle(intel_dsi);
}
int intel_dsi_bitrate(const struct intel_dsi *intel_dsi)
{
int bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format);

1
drivers/gpu/drm/i915/display/intel_dsi.h
View File

@ -174,5 +174,6 @@ struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi,
const struct mipi_dsi_host_ops *funcs,
enum port port);
void intel_dsi_wait_panel_power_cycle(struct intel_dsi *intel_dsi);
void intel_dsi_shutdown(struct intel_encoder *encoder);
#endif /* _INTEL_DSI_H */

7
drivers/gpu/drm/i915/display/vlv_dsi.c
View File

@ -929,13 +929,6 @@ static void intel_dsi_post_disable(struct intel_atomic_state *state,
intel_dsi->panel_power_off_time = ktime_get_boottime();
}
static void intel_dsi_shutdown(struct intel_encoder *encoder)
{
struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
intel_dsi_wait_panel_power_cycle(intel_dsi);
}
static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
enum pipe *pipe)
{