[PATCH v2 5/9] drm/i915: Replace to_bpp_int_roundup() with fxp_q4_to_int_roundup()

[Imre Deak]

Replace the to_bpp_int_roundup() helper defined by the driver with the
equivalent fxp_q4_to_int_roundup() helper defined by DRM core.

v2: Rebase on s/drm_x16/fxp_q4 change.

Signed-off-by: Imre Deak <imre.deak at intel.com>
---
 drivers/gpu/drm/i915/display/intel_cdclk.c         | 5 ++++-
 drivers/gpu/drm/i915/display/intel_display_types.h | 5 -----
 drivers/gpu/drm/i915/display/intel_dp.c            | 6 +++---
 drivers/gpu/drm/i915/display/intel_dp_mst.c        | 2 +-
 4 files changed, 8 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/i915/display/intel_cdclk.c b/drivers/gpu/drm/i915/display/intel_cdclk.c
index 16d5550f7e5e5..aa3ba66c5307f 100644
--- a/drivers/gpu/drm/i915/display/intel_cdclk.c
+++ b/drivers/gpu/drm/i915/display/intel_cdclk.c
@@ -23,7 +23,10 @@
 
 #include <linux/time.h>
 
+#include <drm/drm_fixed.h>
+
 #include "soc/intel_dram.h"
+
 #include "hsw_ips.h"
 #include "i915_reg.h"
 #include "intel_atomic.h"
@@ -2750,7 +2753,7 @@ static int intel_vdsc_min_cdclk(const struct intel_crtc_state *crtc_state)
 		 */
 		int bigjoiner_interface_bits = DISPLAY_VER(i915) >= 14 ? 36 : 24;
 		int min_cdclk_bj =
-			(to_bpp_int_roundup(crtc_state->dsc.compressed_bpp_x16) *
+			(fxp_q4_to_int_roundup(crtc_state->dsc.compressed_bpp_x16) *
 			 pixel_clock) / (2 * bigjoiner_interface_bits);
 
 		min_cdclk = max(min_cdclk, min_cdclk_bj);
diff --git a/drivers/gpu/drm/i915/display/intel_display_types.h b/drivers/gpu/drm/i915/display/intel_display_types.h
index 6ffdcdb09c05e..d11b0ca6944be 100644
--- a/drivers/gpu/drm/i915/display/intel_display_types.h
+++ b/drivers/gpu/drm/i915/display/intel_display_types.h
@@ -2186,11 +2186,6 @@ static inline int to_bpp_frac(int bpp_x16)
 #define BPP_X16_FMT		"%d.%04d"
 #define BPP_X16_ARGS(bpp_x16)	fxp_q4_to_int(bpp_x16), (to_bpp_frac(bpp_x16) * 625)
 
-static inline int to_bpp_int_roundup(int bpp_x16)
-{
-	return (bpp_x16 + 0xf) >> 4;
-}
-
 /*
  * Conversion functions/macros from various pointer types to struct
  * intel_display pointer.
diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index 1107c08456554..2852d89b0957c 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -2006,7 +2006,7 @@ static int dsc_compute_compressed_bpp(struct intel_dp *intel_dp,
 	dsc_src_min_bpp = dsc_src_min_compressed_bpp();
 	dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(pipe_config);
 	dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
-	dsc_min_bpp = max(dsc_min_bpp, to_bpp_int_roundup(limits->link.min_bpp_x16));
+	dsc_min_bpp = max(dsc_min_bpp, fxp_q4_to_int_roundup(limits->link.min_bpp_x16));
 
 	dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp);
 	dsc_sink_max_bpp = intel_dp_dsc_sink_max_compressed_bpp(connector,
@@ -2168,7 +2168,7 @@ static int intel_edp_dsc_compute_pipe_bpp(struct intel_dp *intel_dp,
 	dsc_src_min_bpp = dsc_src_min_compressed_bpp();
 	dsc_sink_min_bpp = intel_dp_dsc_sink_min_compressed_bpp(pipe_config);
 	dsc_min_bpp = max(dsc_src_min_bpp, dsc_sink_min_bpp);
-	dsc_min_bpp = max(dsc_min_bpp, to_bpp_int_roundup(limits->link.min_bpp_x16));
+	dsc_min_bpp = max(dsc_min_bpp, fxp_q4_to_int_roundup(limits->link.min_bpp_x16));
 
 	dsc_src_max_bpp = dsc_src_max_compressed_bpp(intel_dp);
 	dsc_sink_max_bpp = intel_dp_dsc_sink_max_compressed_bpp(connector,
@@ -2394,7 +2394,7 @@ int intel_dp_config_required_rate(const struct intel_crtc_state *crtc_state)
 	const struct drm_display_mode *adjusted_mode =
 		&crtc_state->hw.adjusted_mode;
 	int bpp = crtc_state->dsc.compression_enable ?
-		to_bpp_int_roundup(crtc_state->dsc.compressed_bpp_x16) :
+		fxp_q4_to_int_roundup(crtc_state->dsc.compressed_bpp_x16) :
 		crtc_state->pipe_bpp;
 
 	return intel_dp_link_required(adjusted_mode->crtc_clock, bpp);
diff --git a/drivers/gpu/drm/i915/display/intel_dp_mst.c b/drivers/gpu/drm/i915/display/intel_dp_mst.c
index cac51b527c8e4..3f863ddb0c597 100644
--- a/drivers/gpu/drm/i915/display/intel_dp_mst.c
+++ b/drivers/gpu/drm/i915/display/intel_dp_mst.c
@@ -378,7 +378,7 @@ static int intel_dp_dsc_mst_compute_link_config(struct intel_encoder *encoder,
 
 	min_compressed_bpp = intel_dp_dsc_sink_min_compressed_bpp(crtc_state);
 	min_compressed_bpp = max(min_compressed_bpp,
-				 to_bpp_int_roundup(limits->link.min_bpp_x16));
+				 fxp_q4_to_int_roundup(limits->link.min_bpp_x16));
 
 	drm_dbg_kms(&i915->drm, "DSC Sink supported compressed min bpp %d compressed max bpp %d\n",
 		    min_compressed_bpp, max_compressed_bpp);
-- 
2.43.3