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drm/i915: Reuse normal state readout for LVDS/DVO fixed mode

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Reuse the normal state readout code to get the fixed mode for LVDS/DVO
encoders. This removes some partially duplicated state readout code
from LVDS/DVO encoders. The duplicated code wasn't actually even
populating the negative h/vsync flags, leading to possible state checker
complaints. The normal readout code populates that stuff fully.

Cc: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171009161951.22420-1-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Tested-by: Chris Wilson <chris@chris-wilson.co.uk>
This commit is contained in:
Ville Syrjälä 2017-10-09 19:19:50 +03:00
parent af7a8ffad9
commit de33081567
4 changed files with 39 additions and 67 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

50
drivers/gpu/drm/i915/intel_display.c
View File

@ -10238,48 +10238,44 @@ static void ironlake_pch_clock_get(struct intel_crtc *crtc,
&pipe_config->fdi_m_n);
}
/** Returns the currently programmed mode of the given pipe. */
struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
struct drm_crtc *crtc)
/* Returns the currently programmed mode of the given encoder. */
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder)
{
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_crtc *intel_crtc = to_intel_crtc(crtc);
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
struct intel_crtc_state *crtc_state;
struct drm_display_mode *mode;
struct intel_crtc_state *pipe_config;
enum pipe pipe = intel_crtc->pipe;
struct intel_crtc *crtc;
enum pipe pipe;
if (!encoder->get_hw_state(encoder, &pipe))
return NULL;
crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
mode = kzalloc(sizeof(*mode), GFP_KERNEL);
if (!mode)
return NULL;
pipe_config = kzalloc(sizeof(*pipe_config), GFP_KERNEL);
if (!pipe_config) {
crtc_state = kzalloc(sizeof(*crtc_state), GFP_KERNEL);
if (!crtc_state) {
kfree(mode);
return NULL;
}
/*
* Construct a pipe_config sufficient for getting the clock info
* back out of crtc_clock_get.
*
* Note, if LVDS ever uses a non-1 pixel multiplier, we'll need
* to use a real value here instead.
*/
pipe_config->cpu_transcoder = (enum transcoder) pipe;
pipe_config->pixel_multiplier = 1;
pipe_config->dpll_hw_state.dpll = I915_READ(DPLL(pipe));
pipe_config->dpll_hw_state.fp0 = I915_READ(FP0(pipe));
pipe_config->dpll_hw_state.fp1 = I915_READ(FP1(pipe));
i9xx_crtc_clock_get(intel_crtc, pipe_config);
crtc_state->base.crtc = &crtc->base;
pipe_config->base.adjusted_mode.crtc_clock =
pipe_config->port_clock / pipe_config->pixel_multiplier;
if (!dev_priv->display.get_pipe_config(crtc, crtc_state)) {
kfree(crtc_state);
kfree(mode);
return NULL;
}
intel_get_pipe_timings(intel_crtc, pipe_config);
encoder->get_config(encoder, crtc_state);
intel_mode_from_pipe_config(mode, pipe_config);
intel_mode_from_pipe_config(mode, crtc_state);
kfree(pipe_config);
kfree(crtc_state);
return mode;
}

5
drivers/gpu/drm/i915/intel_drv.h
View File

@ -1363,8 +1363,9 @@ struct intel_connector *intel_connector_alloc(void);
bool intel_connector_get_hw_state(struct intel_connector *connector);
void intel_connector_attach_encoder(struct intel_connector *connector,
struct intel_encoder *encoder);
struct drm_display_mode *intel_crtc_mode_get(struct drm_device *dev,
struct drm_crtc *crtc);
struct drm_display_mode *
intel_encoder_current_mode(struct intel_encoder *encoder);
enum pipe intel_get_pipe_from_connector(struct intel_connector *connector);
int intel_get_pipe_from_crtc_id(struct drm_device *dev, void *data,
struct drm_file *file_priv);

33
drivers/gpu/drm/i915/intel_dvo.c
View File

@ -379,32 +379,15 @@ static const struct drm_encoder_funcs intel_dvo_enc_funcs = {
* chip being on DVOB/C and having multiple pipes.
*/
static struct drm_display_mode *
intel_dvo_get_current_mode(struct drm_connector *connector)
intel_dvo_get_current_mode(struct intel_encoder *encoder)
{
struct drm_device *dev = connector->dev;
struct drm_i915_private *dev_priv = to_i915(dev);
struct intel_dvo *intel_dvo = intel_attached_dvo(connector);
uint32_t dvo_val = I915_READ(intel_dvo->dev.dvo_reg);
struct drm_display_mode *mode = NULL;
struct drm_display_mode *mode;
/* If the DVO port is active, that'll be the LVDS, so we can pull out
* its timings to get how the BIOS set up the panel.
*/
if (dvo_val & DVO_ENABLE) {
struct intel_crtc *crtc;
int pipe = (dvo_val & DVO_PIPE_B_SELECT) ? 1 : 0;
crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
if (crtc) {
mode = intel_crtc_mode_get(dev, &crtc->base);
if (mode) {
mode->type |= DRM_MODE_TYPE_PREFERRED;
if (dvo_val & DVO_HSYNC_ACTIVE_HIGH)
mode->flags |= DRM_MODE_FLAG_PHSYNC;
if (dvo_val & DVO_VSYNC_ACTIVE_HIGH)
mode->flags |= DRM_MODE_FLAG_PVSYNC;
}
}
mode = intel_encoder_current_mode(encoder);
if (mode) {
DRM_DEBUG_KMS("using current (BIOS) mode: ");
drm_mode_debug_printmodeline(mode);
mode->type |= DRM_MODE_TYPE_PREFERRED;
}
return mode;
@ -551,7 +534,7 @@ void intel_dvo_init(struct drm_i915_private *dev_priv)
* mode being output through DVO.
*/
intel_panel_init(&intel_connector->panel,
intel_dvo_get_current_mode(connector),
intel_dvo_get_current_mode(intel_encoder),
NULL, NULL);
intel_dvo->panel_wants_dither = true;
}

18
drivers/gpu/drm/i915/intel_lvds.c
View File

@ -939,10 +939,8 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
struct drm_display_mode *fixed_mode = NULL;
struct drm_display_mode *downclock_mode = NULL;
struct edid *edid;
struct intel_crtc *crtc;
i915_reg_t lvds_reg;
u32 lvds;
int pipe;
u8 pin;
u32 allowed_scalers;
@ -1118,17 +1116,11 @@ void intel_lvds_init(struct drm_i915_private *dev_priv)
if (HAS_PCH_SPLIT(dev_priv))
goto failed;
pipe = (lvds & LVDS_PIPEB_SELECT) ? 1 : 0;
crtc = intel_get_crtc_for_pipe(dev_priv, pipe);
if (crtc && (lvds & LVDS_PORT_EN)) {
fixed_mode = intel_crtc_mode_get(dev, &crtc->base);
if (fixed_mode) {
DRM_DEBUG_KMS("using current (BIOS) mode: ");
drm_mode_debug_printmodeline(fixed_mode);
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
goto out;
}
fixed_mode = intel_encoder_current_mode(intel_encoder);
if (fixed_mode) {
DRM_DEBUG_KMS("using current (BIOS) mode: ");
drm_mode_debug_printmodeline(fixed_mode);
fixed_mode->type |= DRM_MODE_TYPE_PREFERRED;
}
/* If we still don't have a mode after all that, give up. */