115 lines
2.8 KiB
C
115 lines
2.8 KiB
C
|
// SPDX-License-Identifier: MIT
|
||
|
|
/*
|
||
|
|
* Copyright © 2018 Intel Corporation
|
||
|
|
*/
|
||
|
|
|
||
|
|
#include <drm/drm_mipi_dsi.h>
|
||
|
|
|
||
|
|
#include "i915_drv.h"
|
||
|
|
#include "intel_dsi.h"
|
||
|
|
#include "intel_panel.h"
|
||
|
|
|
||
|
|
int intel_dsi_bitrate(const struct intel_dsi *intel_dsi)
|
||
|
|
{
|
||
|
|
int bpp = mipi_dsi_pixel_format_to_bpp(intel_dsi->pixel_format);
|
||
|
|
|
||
|
|
if (WARN_ON(bpp < 0))
|
||
|
|
bpp = 16;
|
||
|
|
|
||
|
|
return intel_dsi->pclk * bpp / intel_dsi->lane_count;
|
||
|
|
}
|
||
|
|
|
||
|
|
int intel_dsi_tlpx_ns(const struct intel_dsi *intel_dsi)
|
||
|
|
{
|
||
|
|
switch (intel_dsi->escape_clk_div) {
|
||
|
|
default:
|
||
|
|
case 0:
|
||
|
|
return 50;
|
||
|
|
case 1:
|
||
|
|
return 100;
|
||
|
|
case 2:
|
||
|
|
return 200;
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
int intel_dsi_get_modes(struct drm_connector *connector)
|
||
|
|
{
|
||
|
|
return intel_panel_get_modes(to_intel_connector(connector));
|
||
|
|
}
|
||
|
|
|
||
|
|
enum drm_mode_status intel_dsi_mode_valid(struct drm_connector *connector,
|
||
|
|
struct drm_display_mode *mode)
|
||
|
|
{
|
||
|
|
struct drm_i915_private *dev_priv = to_i915(connector->dev);
|
||
|
|
struct intel_connector *intel_connector = to_intel_connector(connector);
|
||
|
|
const struct drm_display_mode *fixed_mode =
|
||
|
|
intel_panel_fixed_mode(intel_connector, mode);
|
||
|
|
int max_dotclk = to_i915(connector->dev)->max_dotclk_freq;
|
||
|
|
enum drm_mode_status status;
|
||
|
|
|
||
|
|
drm_dbg_kms(&dev_priv->drm, "\n");
|
||
|
|
|
||
|
|
if (mode->flags & DRM_MODE_FLAG_DBLSCAN)
|
||
|
|
return MODE_NO_DBLESCAN;
|
||
|
|
|
||
|
|
status = intel_panel_mode_valid(intel_connector, mode);
|
||
|
|
if (status != MODE_OK)
|
||
|
|
return status;
|
||
|
|
|
||
|
|
if (fixed_mode->clock > max_dotclk)
|
||
|
|
return MODE_CLOCK_HIGH;
|
||
|
|
|
||
|
|
return intel_mode_valid_max_plane_size(dev_priv, mode, false);
|
||
|
|
}
|
||
|
|
|
||
|
|
struct intel_dsi_host *intel_dsi_host_init(struct intel_dsi *intel_dsi,
|
||
|
|
const struct mipi_dsi_host_ops *funcs,
|
||
|
|
enum port port)
|
||
|
|
{
|
||
|
|
struct intel_dsi_host *host;
|
||
|
|
struct mipi_dsi_device *device;
|
||
|
|
|
||
|
|
host = kzalloc(sizeof(*host), GFP_KERNEL);
|
||
|
|
if (!host)
|
||
|
|
return NULL;
|
||
|
|
|
||
|
|
host->base.ops = funcs;
|
||
|
|
host->intel_dsi = intel_dsi;
|
||
|
|
host->port = port;
|
||
|
|
|
||
|
|
/*
|
||
|
|
* We should call mipi_dsi_host_register(&host->base) here, but we don't
|
||
|
|
* have a host->dev, and we don't have OF stuff either. So just use the
|
||
|
|
* dsi framework as a library and hope for the best. Create the dsi
|
||
|
|
* devices by ourselves here too. Need to be careful though, because we
|
||
|
|
* don't initialize any of the driver model devices here.
|
||
|
|
*/
|
||
|
|
device = kzalloc(sizeof(*device), GFP_KERNEL);
|
||
|
|
if (!device) {
|
||
|
|
kfree(host);
|
||
|
|
return NULL;
|
||
|
|
}
|
||
|
|
|
||
|
|
device->host = &host->base;
|
||
|
|
host->device = device;
|
||
|
|
|
||
|
|
return host;
|
||
|
|
}
|
||
|
|
|
||
|
|
enum drm_panel_orientation
|
||
|
|
intel_dsi_get_panel_orientation(struct intel_connector *connector)
|
||
|
|
{
|
||
|
|
struct drm_i915_private *dev_priv = to_i915(connector->base.dev);
|
||
|
|
enum drm_panel_orientation orientation;
|
||
|
|
|
||
|
|
orientation = connector->panel.vbt.dsi.orientation;
|
||
|
|
if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
|
||
|
|
return orientation;
|
||
|
|
|
||
|
|
orientation = dev_priv->display.vbt.orientation;
|
||
|
|
if (orientation != DRM_MODE_PANEL_ORIENTATION_UNKNOWN)
|
||
|
|
return orientation;
|
||
|
|
|
||
|
|
return DRM_MODE_PANEL_ORIENTATION_NORMAL;
|
||
|
|
}
|