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drm/i915: Streamline intel_dsc_pps_read()

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intel_dsc_pps_read() is rather convoluted. Make it legible.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20231207193441.20206-3-ville.syrjala@linux.intel.com
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
This commit is contained in:
Ville Syrjälä
2023-12-07 21:34:35 +02:00
parent e81144106e
commit e05a67fdd3
1 changed files with 7 additions and 14 deletions
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21
drivers/gpu/drm/i915/display/intel_vdsc.c
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@@ -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;
*all_equal = true;
for (i = 0; i < dsc_reg_num; i++) {
u32 tmp;
val = intel_de_read(i915, dsc_reg[0]);
tmp = intel_de_read(i915, dsc_reg[i]);
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;
}
}