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drm/i915/display: Factor out intel_display_{min, max}_pipe_bpp()

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Factor out helpers that can be used in a follow-up change to query the
minimum and maximum pipe bpp supported by the HW.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://lore.kernel.org/r/20250509180340.554867-10-imre.deak@intel.com
This commit is contained in:
Imre Deak 2025-05-09 21:03:36 +03:00
parent 00f0085982
commit a43a02d8f5
3 changed files with 22 additions and 11 deletions
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28
drivers/gpu/drm/i915/display/intel_display.c
View File

@ -4318,6 +4318,22 @@ compute_sink_pipe_bpp(const struct drm_connector_state *conn_state,
return 0;
}
int intel_display_min_pipe_bpp(void)
{
return 6 * 3;
}
int intel_display_max_pipe_bpp(struct intel_display *display)
{
if (display->platform.g4x || display->platform.valleyview ||
display->platform.cherryview)
return 10*3;
else if (DISPLAY_VER(display) >= 5)
return 12*3;
else
return 8*3;
}
static int
compute_baseline_pipe_bpp(struct intel_atomic_state *state,
struct intel_crtc *crtc)
@ -4327,17 +4343,9 @@ compute_baseline_pipe_bpp(struct intel_atomic_state *state,
intel_atomic_get_new_crtc_state(state, crtc);
struct drm_connector *connector;
struct drm_connector_state *connector_state;
int bpp, i;
int i;
if (display->platform.g4x || display->platform.valleyview ||
display->platform.cherryview)
bpp = 10*3;
else if (DISPLAY_VER(display) >= 5)
bpp = 12*3;
else
bpp = 8*3;
crtc_state->pipe_bpp = bpp;
crtc_state->pipe_bpp = intel_display_max_pipe_bpp(display);
/* Clamp display bpp to connector max bpp */
for_each_new_connector_in_state(&state->base, connector, connector_state, i) {

3
drivers/gpu/drm/i915/display/intel_display.h
View File

@ -524,6 +524,9 @@ void intel_plane_fixup_bitmasks(struct intel_crtc_state *crtc_state);
bool intel_crtc_vrr_disabling(struct intel_atomic_state *state,
struct intel_crtc *crtc);
int intel_display_min_pipe_bpp(void);
int intel_display_max_pipe_bpp(struct intel_display *display);
/* modesetting */
int intel_modeset_pipes_in_mask_early(struct intel_atomic_state *state,
const char *reason, u8 pipe_mask);

2
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -1199,7 +1199,7 @@ intel_dp_output_format(struct intel_connector *connector,
int intel_dp_min_bpp(enum intel_output_format output_format)
{
if (output_format == INTEL_OUTPUT_FORMAT_RGB)
return 6 * 3;
return intel_display_min_pipe_bpp();
else
return 8 * 3;
}