diff options
Diffstat (limited to 'drivers/gpu/drm/i915/intel_panel.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_panel.c | 150 |
1 files changed, 110 insertions, 40 deletions
diff --git a/drivers/gpu/drm/i915/intel_panel.c b/drivers/gpu/drm/i915/intel_panel.c index beca98d2b035..4ab4ce6569e7 100644 --- a/drivers/gpu/drm/i915/intel_panel.c +++ b/drivers/gpu/drm/i915/intel_panel.c @@ -33,7 +33,10 @@ #include <linux/kernel.h> #include <linux/moduleparam.h> #include <linux/pwm.h> + +#include "intel_connector.h" #include "intel_drv.h" +#include "intel_panel.h" #define CRC_PMIC_PWM_PERIOD_NS 21333 @@ -46,27 +49,26 @@ intel_fixed_panel_mode(const struct drm_display_mode *fixed_mode, drm_mode_set_crtcinfo(adjusted_mode, 0); } -/** - * intel_find_panel_downclock - find the reduced downclock for LVDS in EDID - * @dev_priv: i915 device instance - * @fixed_mode : panel native mode - * @connector: LVDS/eDP connector - * - * Return downclock_avail - * Find the reduced downclock for LVDS/eDP in EDID. - */ -struct drm_display_mode * -intel_find_panel_downclock(struct drm_i915_private *dev_priv, - struct drm_display_mode *fixed_mode, - struct drm_connector *connector) +static bool is_downclock_mode(const struct drm_display_mode *downclock_mode, + const struct drm_display_mode *fixed_mode) { - struct drm_display_mode *scan, *tmp_mode; - int temp_downclock; + return drm_mode_match(downclock_mode, fixed_mode, + DRM_MODE_MATCH_TIMINGS | + DRM_MODE_MATCH_FLAGS | + DRM_MODE_MATCH_3D_FLAGS) && + downclock_mode->clock < fixed_mode->clock; +} - temp_downclock = fixed_mode->clock; - tmp_mode = NULL; +struct drm_display_mode * +intel_panel_edid_downclock_mode(struct intel_connector *connector, + const struct drm_display_mode *fixed_mode) +{ + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + const struct drm_display_mode *scan, *best_mode = NULL; + struct drm_display_mode *downclock_mode; + int best_clock = fixed_mode->clock; - list_for_each_entry(scan, &connector->probed_modes, head) { + list_for_each_entry(scan, &connector->base.probed_modes, head) { /* * If one mode has the same resolution with the fixed_panel * mode while they have the different refresh rate, it means @@ -74,29 +76,98 @@ intel_find_panel_downclock(struct drm_i915_private *dev_priv, * case we can set the different FPx0/1 to dynamically select * between low and high frequency. */ - if (scan->hdisplay == fixed_mode->hdisplay && - scan->hsync_start == fixed_mode->hsync_start && - scan->hsync_end == fixed_mode->hsync_end && - scan->htotal == fixed_mode->htotal && - scan->vdisplay == fixed_mode->vdisplay && - scan->vsync_start == fixed_mode->vsync_start && - scan->vsync_end == fixed_mode->vsync_end && - scan->vtotal == fixed_mode->vtotal) { - if (scan->clock < temp_downclock) { - /* - * The downclock is already found. But we - * expect to find the lower downclock. - */ - temp_downclock = scan->clock; - tmp_mode = scan; - } + if (is_downclock_mode(scan, fixed_mode) && + scan->clock < best_clock) { + /* + * The downclock is already found. But we + * expect to find the lower downclock. + */ + best_clock = scan->clock; + best_mode = scan; } } - if (temp_downclock < fixed_mode->clock) - return drm_mode_duplicate(&dev_priv->drm, tmp_mode); - else + if (!best_mode) + return NULL; + + downclock_mode = drm_mode_duplicate(&dev_priv->drm, best_mode); + if (!downclock_mode) + return NULL; + + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] using downclock mode from EDID: ", + connector->base.base.id, connector->base.name); + drm_mode_debug_printmodeline(downclock_mode); + + return downclock_mode; +} + +struct drm_display_mode * +intel_panel_edid_fixed_mode(struct intel_connector *connector) +{ + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + const struct drm_display_mode *scan; + struct drm_display_mode *fixed_mode; + + if (list_empty(&connector->base.probed_modes)) + return NULL; + + /* prefer fixed mode from EDID if available */ + list_for_each_entry(scan, &connector->base.probed_modes, head) { + if ((scan->type & DRM_MODE_TYPE_PREFERRED) == 0) + continue; + + fixed_mode = drm_mode_duplicate(&dev_priv->drm, scan); + if (!fixed_mode) + return NULL; + + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] using preferred mode from EDID: ", + connector->base.base.id, connector->base.name); + drm_mode_debug_printmodeline(fixed_mode); + + return fixed_mode; + } + + scan = list_first_entry(&connector->base.probed_modes, + typeof(*scan), head); + + fixed_mode = drm_mode_duplicate(&dev_priv->drm, scan); + if (!fixed_mode) return NULL; + + fixed_mode->type |= DRM_MODE_TYPE_PREFERRED; + + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] using first mode from EDID: ", + connector->base.base.id, connector->base.name); + drm_mode_debug_printmodeline(fixed_mode); + + return fixed_mode; +} + +struct drm_display_mode * +intel_panel_vbt_fixed_mode(struct intel_connector *connector) +{ + struct drm_i915_private *dev_priv = to_i915(connector->base.dev); + struct drm_display_info *info = &connector->base.display_info; + struct drm_display_mode *fixed_mode; + + if (!dev_priv->vbt.lfp_lvds_vbt_mode) + return NULL; + + fixed_mode = drm_mode_duplicate(&dev_priv->drm, + dev_priv->vbt.lfp_lvds_vbt_mode); + if (!fixed_mode) + return NULL; + + fixed_mode->type |= DRM_MODE_TYPE_PREFERRED; + + DRM_DEBUG_KMS("[CONNECTOR:%d:%s] using mode from VBT: ", + connector->base.base.id, connector->base.name); + drm_mode_debug_printmodeline(fixed_mode); + + info->width_mm = fixed_mode->width_mm; + info->height_mm = fixed_mode->height_mm; + + return fixed_mode; } /* adjusted_mode has been preset to be the panel's fixed mode */ @@ -1894,15 +1965,14 @@ intel_panel_init_backlight_funcs(struct intel_panel *panel) panel->backlight.set = bxt_set_backlight; panel->backlight.get = bxt_get_backlight; panel->backlight.hz_to_pwm = bxt_hz_to_pwm; - } else if (HAS_PCH_CNP(dev_priv) || HAS_PCH_ICP(dev_priv)) { + } else if (INTEL_PCH_TYPE(dev_priv) >= PCH_CNP) { panel->backlight.setup = cnp_setup_backlight; panel->backlight.enable = cnp_enable_backlight; panel->backlight.disable = cnp_disable_backlight; panel->backlight.set = bxt_set_backlight; panel->backlight.get = bxt_get_backlight; panel->backlight.hz_to_pwm = cnp_hz_to_pwm; - } else if (HAS_PCH_LPT(dev_priv) || HAS_PCH_SPT(dev_priv) || - HAS_PCH_KBP(dev_priv)) { + } else if (INTEL_PCH_TYPE(dev_priv) >= PCH_LPT) { panel->backlight.setup = lpt_setup_backlight; panel->backlight.enable = lpt_enable_backlight; panel->backlight.disable = lpt_disable_backlight; |