Commit 2e74748c authored by Jani Nikula's avatar Jani Nikula
Browse files

drm/i915/dp: Rename some variables in xelpd_dsc_compute_link_config() 



Use the _x16 suffix for all .4 fixed point variables. Drop compressed_
prefix, as it's implied from the precision suffix.

As dsc_min_bpp and dsc_max_bpp change domain from int to .4 in the
middle of the function, they remain the same for now.

Reviewed-by: default avatarImre Deak <imre.deak@intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/91dd6ef53683b624a978101cca7322ea3e5e2f7b.1738327620.git.jani.nikula@intel.com
parent dc9ea877

drivers/gpu/drm/i915/display/intel_dp.c

+8 −11
Original line number Diff line number Diff line
@@ -2126,31 +2126,28 @@ xelpd_dsc_compute_link_config(struct intel_dp *intel_dp, 
{

	struct intel_display *display = to_intel_display(intel_dp);

	int output_bpp = intel_dp_output_bpp(pipe_config->output_format, pipe_bpp);

	u16 compressed_bppx16;

	u8 bppx16_step;

	int bpp_x16, bpp_step_x16;

	int ret;



	bppx16_step = intel_dp_dsc_bpp_step_x16(connector);

	bpp_step_x16 = intel_dp_dsc_bpp_step_x16(connector);



	/* Compressed BPP should be less than the Input DSC bpp */

	dsc_max_bpp = min(dsc_max_bpp << 4, (output_bpp << 4) - bppx16_step);

	dsc_max_bpp = min(dsc_max_bpp << 4, (output_bpp << 4) - bpp_step_x16);

	dsc_min_bpp = dsc_min_bpp << 4;



	for (compressed_bppx16 = dsc_max_bpp;

	     compressed_bppx16 >= dsc_min_bpp;

	     compressed_bppx16 -= bppx16_step) {

	for (bpp_x16 = dsc_max_bpp; bpp_x16 >= dsc_min_bpp; bpp_x16 -= bpp_step_x16) {

		if (intel_dp->force_dsc_fractional_bpp_en &&

		    !fxp_q4_to_frac(compressed_bppx16))

		    !fxp_q4_to_frac(bpp_x16))

			continue;

		ret = dsc_compute_link_config(intel_dp,

					      pipe_config,

					      limits,

					      compressed_bppx16,

					      bpp_x16,

					      timeslots);

		if (ret == 0) {

			pipe_config->dsc.compressed_bpp_x16 = compressed_bppx16;

			pipe_config->dsc.compressed_bpp_x16 = bpp_x16;

			if (intel_dp->force_dsc_fractional_bpp_en &&

			    fxp_q4_to_frac(compressed_bppx16))

			    fxp_q4_to_frac(bpp_x16))

				drm_dbg_kms(display->drm,

					    "Forcing DSC fractional bpp\n");