From c6494d16f20ba1ccc978461d11351f4f5bcf852a Mon Sep 17 00:00:00 2001 From: =?utf8?q?Ville=20Syrj=C3=A4l=C3=A4?= Date: Mon, 10 Nov 2025 19:27:43 +0200 Subject: [PATCH] drm/i915/de: Introduce intel_de_wait_us() MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit Introduce intel_de_wait_us() as the microsecond based counterpart to the millisecond based intel_de_wait_ms(). Signed-off-by: Ville Syrjälä Link: https://patch.msgid.link/20251110172756.2132-5-ville.syrjala@linux.intel.com Reviewed-by: Suraj Kandpal Acked-by: Jani Nikula --- drivers/gpu/drm/i915/display/intel_de.h | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/drivers/gpu/drm/i915/display/intel_de.h b/drivers/gpu/drm/i915/display/intel_de.h index d449180d1d224..43a4160f760a4 100644 --- a/drivers/gpu/drm/i915/display/intel_de.h +++ b/drivers/gpu/drm/i915/display/intel_de.h @@ -114,6 +114,23 @@ __intel_de_wait_for_register_atomic_nowl(struct intel_display *display, value, fast_timeout_us, 0, NULL); } +static inline int +intel_de_wait_us(struct intel_display *display, i915_reg_t reg, + u32 mask, u32 value, unsigned int timeout_us, + u32 *out_value) +{ + int ret; + + intel_dmc_wl_get(display, reg); + + ret = __intel_wait_for_register(__to_uncore(display), reg, mask, + value, timeout_us, 0, out_value); + + intel_dmc_wl_put(display, reg); + + return ret; +} + static inline int intel_de_wait_ms(struct intel_display *display, i915_reg_t reg, u32 mask, u32 value, unsigned int timeout_ms, -- 2.47.3