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drm/i915/dsi: Respect power cycle delay on icl+

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Handle the DSI panel power cycle delay on icl+.

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/20230608203057.23759-7-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä 2023-06-08 23:30:50 +03:00
parent a43d928120
commit 201963a827
4 changed files with 20 additions and 14 deletions
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6
drivers/gpu/drm/i915/display/icl_dsi.c
View File

@ -1166,6 +1166,8 @@ static void gen11_dsi_pre_pll_enable(struct intel_atomic_state *state,
{
struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
intel_dsi_wait_panel_power_cycle(intel_dsi);
intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_POWER_ON);
msleep(intel_dsi->panel_on_delay);
intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_DEASSERT_RESET);
@ -1292,6 +1294,8 @@ static void gen11_dsi_powerdown_panel(struct intel_encoder *encoder)
intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_ASSERT_RESET);
intel_dsi_vbt_exec_sequence(intel_dsi, MIPI_SEQ_POWER_OFF);
intel_dsi->panel_power_off_time = ktime_get_boottime();
/* ensure cmds dispatched to panel */
wait_for_cmds_dispatched_to_panel(encoder);
}
@ -1986,6 +1990,8 @@ void icl_dsi_init(struct drm_i915_private *dev_priv)
/* attach connector to encoder */
intel_connector_attach_encoder(intel_connector, encoder);
intel_dsi->panel_power_off_time = ktime_get_boottime();
encoder->devdata = intel_bios_encoder_data_lookup(dev_priv, port);
intel_bios_init_panel_late(dev_priv, &intel_connector->panel, encoder->devdata, NULL);

13
drivers/gpu/drm/i915/display/intel_dsi.c
View File

@ -9,6 +9,19 @@
#include "intel_dsi.h"
#include "intel_panel.h"
void intel_dsi_wait_panel_power_cycle(struct intel_dsi *intel_dsi)
{
ktime_t panel_power_on_time;
s64 panel_power_off_duration;
panel_power_on_time = ktime_get_boottime();
panel_power_off_duration = ktime_ms_delta(panel_power_on_time,
intel_dsi->panel_power_off_time);
if (panel_power_off_duration < (s64)intel_dsi->panel_pwr_cycle_delay)
msleep(intel_dsi->panel_pwr_cycle_delay - panel_power_off_duration);
}
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

@ -173,5 +173,6 @@ enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector,
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);
#endif /* _INTEL_DSI_H */

14
drivers/gpu/drm/i915/display/vlv_dsi.c
View File

@ -671,20 +671,6 @@ static void intel_dsi_port_disable(struct intel_encoder *encoder)
intel_de_posting_read(dev_priv, port_ctrl);
}
}
static void intel_dsi_wait_panel_power_cycle(struct intel_dsi *intel_dsi)
{
ktime_t panel_power_on_time;
s64 panel_power_off_duration;
panel_power_on_time = ktime_get_boottime();
panel_power_off_duration = ktime_ms_delta(panel_power_on_time,
intel_dsi->panel_power_off_time);
if (panel_power_off_duration < (s64)intel_dsi->panel_pwr_cycle_delay)
msleep(intel_dsi->panel_pwr_cycle_delay - panel_power_off_duration);
}
static void intel_dsi_prepare(struct intel_encoder *intel_encoder,
const struct intel_crtc_state *pipe_config);
static void intel_dsi_unprepare(struct intel_encoder *encoder);