From e05a67fdd3c9293827d44a0dfa3618429b832d59 Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Thu, 7 Dec 2023 21:34:35 +0200 Subject: [PATCH] drm/i915: Streamline intel_dsc_pps_read() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit intel_dsc_pps_read() is rather convoluted. Make it legible. Signed-off-by: Ville Syrjälä Link: https://patchwork.freedesktop.org/patch/msgid/20231207193441.20206-3-ville.syrjala@linux.intel.com Reviewed-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_vdsc.c | 21 +++++++-------------- 1 file changed, 7 insertions(+), 14 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_vdsc.c b/drivers/gpu/drm/i915/display/intel_vdsc.c index 5f2fb702e367e..17d6572f9d0a0 100644 --- a/drivers/gpu/drm/i915/display/intel_vdsc.c +++ b/drivers/gpu/drm/i915/display/intel_vdsc.c @@ -812,13 +812,13 @@ void intel_dsc_disable(const struct intel_crtc_state *old_crtc_state) } static u32 intel_dsc_pps_read(struct intel_crtc_state *crtc_state, int pps, - bool *check_equal) + bool *all_equal) { struct intel_crtc *crtc = to_intel_crtc(crtc_state->uapi.crtc); struct drm_i915_private *i915 = to_i915(crtc->base.dev); i915_reg_t dsc_reg[2]; int i, vdsc_per_pipe, dsc_reg_num; - u32 val = 0; + u32 val; vdsc_per_pipe = intel_dsc_get_vdsc_per_pipe(crtc_state); dsc_reg_num = min_t(int, ARRAY_SIZE(dsc_reg), vdsc_per_pipe); @@ -827,20 +827,13 @@ static u32 intel_dsc_pps_read(struct intel_crtc_state *crtc_state, int pps, intel_dsc_get_pps_reg(crtc_state, pps, dsc_reg, dsc_reg_num); - if (check_equal) - *check_equal = true; - - for (i = 0; i < dsc_reg_num; i++) { - u32 tmp; + *all_equal = true; - tmp = intel_de_read(i915, dsc_reg[i]); + val = intel_de_read(i915, dsc_reg[0]); - if (i == 0) { - val = tmp; - } else if (check_equal && tmp != val) { - *check_equal = false; - break; - } else if (!check_equal) { + for (i = 1; i < dsc_reg_num; i++) { + if (intel_de_read(i915, dsc_reg[i]) != val) { + *all_equal = false; break; } } -- 2.30.2