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drm/i915/dp: Export intel_dp_compute_min_compressed_bpp_x16()

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Export intel_dp_compute_min_compressed_bpp_x16() for use by a
follow-up change validating MST modes with DSC enabled.

Reviewed-by: Ankit Nautiyal <ankit.k.nautiyal@intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Link: https://patch.msgid.link/20260216070421.714884-3-imre.deak@intel.com
This commit is contained in:
Imre Deak 2026-02-16 09:04:19 +02:00
parent ec4db429fd
commit 076c05a21a
2 changed files with 8 additions and 4 deletions
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10
drivers/gpu/drm/i915/display/intel_dp.c
View File

@ -2514,8 +2514,8 @@ dsc_throughput_quirk_max_bpp_x16(const struct intel_connector *connector,
return fxp_q4_from_int(12);
}
static int compute_min_compressed_bpp_x16(struct intel_connector *connector,
enum intel_output_format output_format)
int intel_dp_compute_min_compressed_bpp_x16(struct intel_connector *connector,
enum intel_output_format output_format)
{
int dsc_src_min_bpp, dsc_sink_min_bpp, dsc_min_bpp;
int min_bpp_x16;
@ -2581,7 +2581,8 @@ bool intel_dp_mode_valid_with_dsc(struct intel_connector *connector,
int pipe_bpp, unsigned long bw_overhead_flags)
{
struct intel_dp *intel_dp = intel_attached_dp(connector);
int min_bpp_x16 = compute_min_compressed_bpp_x16(connector, output_format);
int min_bpp_x16 = intel_dp_compute_min_compressed_bpp_x16(connector,
output_format);
int max_bpp_x16 = compute_max_compressed_bpp_x16(connector,
mode_clock, mode_hdisplay,
num_joined_pipes,
@ -2635,7 +2636,8 @@ intel_dp_compute_config_link_bpp_limits(struct intel_connector *connector,
limits->link.min_bpp_x16 = fxp_q4_from_int(limits->pipe.min_bpp);
} else {
limits->link.min_bpp_x16 =
compute_min_compressed_bpp_x16(connector, crtc_state->output_format);
intel_dp_compute_min_compressed_bpp_x16(connector,
crtc_state->output_format);
max_link_bpp_x16 =
compute_max_compressed_bpp_x16(connector,

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

@ -143,6 +143,8 @@ bool intel_digital_port_connected(struct intel_encoder *encoder);
bool intel_digital_port_connected_locked(struct intel_encoder *encoder);
int intel_dp_dsc_compute_max_bpp(const struct intel_connector *connector,
u8 dsc_max_bpc);
int intel_dp_compute_min_compressed_bpp_x16(struct intel_connector *connector,
enum intel_output_format output_format);
bool intel_dp_mode_valid_with_dsc(struct intel_connector *connector,
int link_clock, int lane_count,
int mode_clock, int mode_hdisplay,