From: Jani Nikula <jani.nikula@intel.com>
Date: Fri, 29 Aug 2025 11:33:11 +0000 (+0300)
Subject: drm/i915/dp: convert open-coded timeout to poll_timeout_us()
X-Git-Url: https://www.infradead.org/git/?a=commitdiff_plain;h=38f9262b05654854954763e4fac13b0ba7fd6a33;p=users%2Fhch%2Fmisc.git

drm/i915/dp: convert open-coded timeout to poll_timeout_us()

Use poll_timeout_us() instead of open-coding the timeout loop.

Reviewed-by: Jouni Högander <jouni.hogander@intel.com>
Link: https://lore.kernel.org/r/20250829113311.1930618-1-jani.nikula@intel.com
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
---

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c b/drivers/gpu/drm/i915/display/intel_dp.c
index bed7cba1ca68..958e48859beb 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -27,6 +27,7 @@
 
 #include <linux/export.h>
 #include <linux/i2c.h>
+#include <linux/iopoll.h>
 #include <linux/log2.h>
 #include <linux/math.h>
 #include <linux/notifier.h>
@@ -5662,14 +5663,9 @@ bool intel_digital_port_connected_locked(struct intel_encoder *encoder)
 	intel_wakeref_t wakeref;
 
 	with_intel_display_power(display, POWER_DOMAIN_DISPLAY_CORE, wakeref) {
-		unsigned long wait_expires = jiffies + msecs_to_jiffies_timeout(4);
-
-		do {
-			is_connected = dig_port->connected(encoder);
-			if (is_connected || is_glitch_free)
-				break;
-			usleep_range(10, 30);
-		} while (time_before(jiffies, wait_expires));
+		poll_timeout_us(is_connected = dig_port->connected(encoder),
+				is_connected || is_glitch_free,
+				30, 4000, false);
 	}
 
 	return is_connected;