drm/i915/de: Introduce intel_de_wait_for_{set,clear}_us()

Add intel_de_wait_for_set_us() and intel_de_wait_for_clear_us()
as the microsecond counterparts to intel_de_wait_for_set_ms()
and intel_de_wait_for_clear_ms().

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patch.msgid.link/20251110172756.2132-9-ville.syrjala@linux.intel.com
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>

Author: vsyrjala

drivers/gpu/drm/i915/display/intel_de.h

@@ -165,6 +165,20 @@ intel_de_wait_fw_ms(struct intel_display *display, i915_reg_t reg,
 	return ret;
 }
 
+static inline int
+intel_de_wait_for_set_us(struct intel_display *display, i915_reg_t reg,
+			 u32 mask, unsigned int timeout_us)
+{
+	return intel_de_wait_us(display, reg, mask, mask, timeout_us, NULL);
+}
+
+static inline int
+intel_de_wait_for_clear_us(struct intel_display *display, i915_reg_t reg,
+			   u32 mask, unsigned int timeout_us)
+{
+	return intel_de_wait_us(display, reg, mask, 0, timeout_us, NULL);
+}
+
 static inline int
 intel_de_wait_for_set_ms(struct intel_display *display, i915_reg_t reg,
 			 u32 mask, unsigned int timeout_ms)