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Currently, most callers of intel_panel_mode_valid() also call intel_panel_fixed_mode(). This is done either to check for the presence of a fixed mode for the connector or to get the clock of the fixed mode, which is then compared against the max dotclock for the pipe. Since intel_panel_mode_valid() already calls intel_panel_fixed_mode() internally, we can avoid yet another call to intel_panel_fixed_mode() from the caller. Remove the redundant call to intel_panel_fixed_mode() in mode_valid paths. To get the clock for the fixed mode, extend the helper intel_panel_mode_valid() to accept 'target_clock' as an out param. The 'target_clock' can then be used by the callers to check against the max dotclock. Signed-off-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com> Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com> Link: https://patch.msgid.link/20260430131220.3891497-3-ankit.k.nautiyal@intel.com
132 lines
3.2 KiB
C
132 lines
3.2 KiB
C
// SPDX-License-Identifier: MIT
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/*
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* Copyright © 2018 Intel Corporation
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*/
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#include <drm/drm_mipi_dsi.h>
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#include <drm/drm_print.h>
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#include "intel_display_core.h"
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#include "intel_dsi.h"
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#include "intel_panel.h"
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void intel_dsi_wait_panel_power_cycle(struct intel_dsi *intel_dsi)
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{
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ktime_t panel_power_on_time;
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s64 panel_power_off_duration;
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panel_power_on_time = ktime_get_boottime();
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panel_power_off_duration = ktime_ms_delta(panel_power_on_time,
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intel_dsi->panel_power_off_time);
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if (panel_power_off_duration < (s64)intel_dsi->panel_pwr_cycle_delay)
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msleep(intel_dsi->panel_pwr_cycle_delay - panel_power_off_duration);
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}
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void intel_dsi_shutdown(struct intel_encoder *encoder)
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{
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struct intel_dsi *intel_dsi = enc_to_intel_dsi(encoder);
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intel_dsi_wait_panel_power_cycle(intel_dsi);
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}
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int intel_dsi_bitrate(const struct intel_dsi *intel_dsi)
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{
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int bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format);
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if (WARN_ON(bpp < 0))
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bpp = 16;
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return intel_dsi->pclk * bpp / intel_dsi->lane_count;
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}
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int intel_dsi_tlpx_ns(const struct intel_dsi *intel_dsi)
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{
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switch (intel_dsi->escape_clk_div) {
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default:
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case 0:
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return 50;
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case 1:
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return 100;
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case 2:
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return 200;
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}
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}
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int intel_dsi_get_modes(struct drm_connector *connector)
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{
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return intel_panel_get_modes(to_intel_connector(connector));
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}
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enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector,
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const struct drm_display_mode *mode)
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{
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struct intel_display *display = to_intel_display(connector->dev);
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struct intel_connector *intel_connector = to_intel_connector(connector);
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int max_dotclk = display->cdclk.max_dotclk_freq;
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enum drm_mode_status status;
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int target_clock;
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drm_dbg_kms(display->drm, "\n");
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status = intel_panel_mode_valid(intel_connector, mode, &target_clock);
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if (status != MODE_OK)
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return status;
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if (target_clock > max_dotclk)
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return MODE_CLOCK_HIGH;
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return intel_mode_valid_max_plane_size(display, mode, 1);
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}
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struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi,
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const struct mipi_dsi_host_ops *funcs,
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enum port port)
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{
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struct intel_dsi_host *host;
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struct mipi_dsi_device *device;
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host = kzalloc_obj(*host);
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if (!host)
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return NULL;
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host->base.ops = funcs;
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host->intel_dsi = intel_dsi;
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host->port = port;
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/*
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* We should call mipi_dsi_host_register(&host->base) here, but we don't
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* have a host->dev, and we don't have OF stuff either. So just use the
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* dsi framework as a library and hope for the best. Create the dsi
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* devices by ourselves here too. Need to be careful though, because we
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* don't initialize any of the driver model devices here.
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*/
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device = kzalloc_obj(*device);
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if (!device) {
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kfree(host);
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return NULL;
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}
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device->host = &host->base;
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host->device = device;
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return host;
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}
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enum drm_panel_orientation
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intel_dsi_get_panel_orientation(struct intel_connector *connector)
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{
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struct intel_display *display = to_intel_display(connector);
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enum drm_panel_orientation orientation;
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orientation = connector->panel.vbt.dsi.orientation;
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if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
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return orientation;
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orientation = display->vbt.orientation;
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if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
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return orientation;
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return DRM_MODE_PANEL_ORIENTATION_NORMAL;
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}
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