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From: =?utf-8?q?Alvin_=C5=A0ipraga?= <alvin@pqrs.dk>
Date: Mon, 19 Feb 2024 21:12:58 +0100
Subject: [PATCH v3 1/2] drm/bridge: adv7511: rearrange hotplug work code
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Message-Id: <20240219-adv7511-cec-edid-v3-1-445aed2f1cd7@bang-olufsen.dk>
References: <20240219-adv7511-cec-edid-v3-0-445aed2f1cd7@bang-olufsen.dk>
In-Reply-To: <20240219-adv7511-cec-edid-v3-0-445aed2f1cd7@bang-olufsen.dk>
To: Andrzej Hajda <andrzej.hajda@intel.com>, 
 Neil Armstrong <neil.armstrong@linaro.org>, Robert Foss <rfoss@kernel.org>, 
 Laurent Pinchart <Laurent.pinchart@ideasonboard.com>, 
 Jonas Karlman <jonas@kwiboo.se>, Jernej Skrabec <jernej.skrabec@gmail.com>, 
 David Airlie <airlied@gmail.com>, Daniel Vetter <daniel@ffwll.ch>, 
 Hans Verkuil <hverkuil-cisco@xs4all.nl>
Cc: dri-devel@lists.freedesktop.org, linux-kernel@vger.kernel.org, 
 =?utf-8?q?Alvin_=C5=A0ipraga?= <alsi@bang-olufsen.dk>

From: Alvin Šipraga <alsi@bang-olufsen.dk>

In preparation for calling EDID helpers from the hotplug work, move the
hotplug work below the EDID helper section. No functional change.

Reviewed-by: Robert Foss <rfoss@kernel.org>
Signed-off-by: Alvin Šipraga <alsi@bang-olufsen.dk>
---
 drivers/gpu/drm/bridge/adv7511/adv7511_drv.c | 120 ++++++++++++++-------------
 1 file changed, 62 insertions(+), 58 deletions(-)

diff --git a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
index 8be235144f6d..5ffc5904bd59 100644
--- a/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
+++ b/drivers/gpu/drm/bridge/adv7511/adv7511_drv.c
@@ -406,64 +406,6 @@ static void adv7511_power_off(struct adv7511 *adv7511)
  * Interrupt and hotplug detection
  */
 
-static bool adv7511_hpd(struct adv7511 *adv7511)
-{
-	unsigned int irq0;
-	int ret;
-
-	ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
-	if (ret < 0)
-		return false;
-
-	if (irq0 & ADV7511_INT0_HPD) {
-		regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
-			     ADV7511_INT0_HPD);
-		return true;
-	}
-
-	return false;
-}
-
-static void adv7511_hpd_work(struct work_struct *work)
-{
-	struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
-	enum drm_connector_status status;
-	unsigned int val;
-	int ret;
-
-	ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
-	if (ret < 0)
-		status = connector_status_disconnected;
-	else if (val & ADV7511_STATUS_HPD)
-		status = connector_status_connected;
-	else
-		status = connector_status_disconnected;
-
-	/*
-	 * The bridge resets its registers on unplug. So when we get a plug
-	 * event and we're already supposed to be powered, cycle the bridge to
-	 * restore its state.
-	 */
-	if (status == connector_status_connected &&
-	    adv7511->connector.status == connector_status_disconnected &&
-	    adv7511->powered) {
-		regcache_mark_dirty(adv7511->regmap);
-		adv7511_power_on(adv7511);
-	}
-
-	if (adv7511->connector.status != status) {
-		adv7511->connector.status = status;
-
-		if (adv7511->connector.dev) {
-			if (status == connector_status_disconnected)
-				cec_phys_addr_invalidate(adv7511->cec_adap);
-			drm_kms_helper_hotplug_event(adv7511->connector.dev);
-		} else {
-			drm_bridge_hpd_notify(&adv7511->bridge, status);
-		}
-	}
-}
-
 static int adv7511_irq_process(struct adv7511 *adv7511, bool process_hpd)
 {
 	unsigned int irq0, irq1;
@@ -600,6 +542,68 @@ static int adv7511_get_edid_block(void *data, u8 *buf, unsigned int block,
 	return 0;
 }
 
+/* -----------------------------------------------------------------------------
+ * Hotplug handling
+ */
+
+static bool adv7511_hpd(struct adv7511 *adv7511)
+{
+	unsigned int irq0;
+	int ret;
+
+	ret = regmap_read(adv7511->regmap, ADV7511_REG_INT(0), &irq0);
+	if (ret < 0)
+		return false;
+
+	if (irq0 & ADV7511_INT0_HPD) {
+		regmap_write(adv7511->regmap, ADV7511_REG_INT(0),
+			     ADV7511_INT0_HPD);
+		return true;
+	}
+
+	return false;
+}
+
+static void adv7511_hpd_work(struct work_struct *work)
+{
+	struct adv7511 *adv7511 = container_of(work, struct adv7511, hpd_work);
+	enum drm_connector_status status;
+	unsigned int val;
+	int ret;
+
+	ret = regmap_read(adv7511->regmap, ADV7511_REG_STATUS, &val);
+	if (ret < 0)
+		status = connector_status_disconnected;
+	else if (val & ADV7511_STATUS_HPD)
+		status = connector_status_connected;
+	else
+		status = connector_status_disconnected;
+
+	/*
+	 * The bridge resets its registers on unplug. So when we get a plug
+	 * event and we're already supposed to be powered, cycle the bridge to
+	 * restore its state.
+	 */
+	if (status == connector_status_connected &&
+	    adv7511->connector.status == connector_status_disconnected &&
+	    adv7511->powered) {
+		regcache_mark_dirty(adv7511->regmap);
+		adv7511_power_on(adv7511);
+	}
+
+	if (adv7511->connector.status != status) {
+		adv7511->connector.status = status;
+
+		if (adv7511->connector.dev) {
+			if (status == connector_status_disconnected)
+				cec_phys_addr_invalidate(adv7511->cec_adap);
+			drm_kms_helper_hotplug_event(adv7511->connector.dev);
+		} else {
+			drm_bridge_hpd_notify(&adv7511->bridge, status);
+		}
+	}
+}
+
 /* -----------------------------------------------------------------------------
  * ADV75xx helpers
  */

-- 
2.43.1