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drm/i915: Set PKG_C_LATENCY.added_wake_time to 0

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AFAIK PKG_C_LATENCY.added_wake_time only matters for flip queue.
As long as we're not using that there's no point in adding any
extra wake time.

Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250624170049.27284-2-ville.syrjala@linux.intel.com
This commit is contained in:
Ville Syrjälä
2025-06-24 20:00:41 +03:00
parent 0dc6bfb50a
commit 4e3f3add49
1 changed files with 0 additions and 9 deletions
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9
drivers/gpu/drm/i915/display/skl_watermark.c
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@@ -33,12 +33,6 @@
#include "skl_watermark.h"
#include "skl_watermark_regs.h"
/*It is expected that DSB can do posted writes to every register in
* the pipe and planes within 100us. For flip queue use case, the
* recommended DSB execution time is 100us + one SAGV block time.
*/
#define DSB_EXE_TIME 100
struct intel_dbuf_state {
struct intel_global_state base;
@@ -2899,9 +2893,6 @@ intel_program_dpkgc_latency(struct intel_atomic_state *state)
}
if (fixed_refresh_rate) {
added_wake_time = DSB_EXE_TIME +
display->sagv.block_time_us;
latency = skl_watermark_max_latency(display, 1);
/* Wa_22020432604 */