From b93c846273b9eda820f618a07d8871e20639e0b9 Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Fri, 6 May 2016 10:28:41 +0200
Subject: drm/hisilicon: Use drm_connector_register_all

Use drm_connector_register_all helper to register connectors.

Cc: Xinliang Liu <xinliang.liu@linaro.org>
Cc: Xinwei Kong <kong.kongxinwei@hisilicon.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
index e102c9e..bc410ee 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
@@ -201,35 +201,6 @@ static int compare_of(struct device *dev, void *data)
 	return dev->of_node == data;
 }
 
-static int kirin_drm_connectors_register(struct drm_device *dev)
-{
-	struct drm_connector *connector;
-	struct drm_connector *failed_connector;
-	int ret;
-
-	mutex_lock(&dev->mode_config.mutex);
-	drm_for_each_connector(connector, dev) {
-		ret = drm_connector_register(connector);
-		if (ret) {
-			failed_connector = connector;
-			goto err;
-		}
-	}
-	mutex_unlock(&dev->mode_config.mutex);
-
-	return 0;
-
-err:
-	drm_for_each_connector(connector, dev) {
-		if (failed_connector == connector)
-			break;
-		drm_connector_unregister(connector);
-	}
-	mutex_unlock(&dev->mode_config.mutex);
-
-	return ret;
-}
-
 static int kirin_drm_bind(struct device *dev)
 {
 	struct drm_driver *driver = &kirin_drm_driver;
@@ -251,7 +222,7 @@ static int kirin_drm_bind(struct device *dev)
 		goto err_kms_cleanup;
 
 	/* connectors should be registered after drm device register */
-	ret = kirin_drm_connectors_register(drm_dev);
+	ret = drm_connector_register_all(drm_dev);
 	if (ret)
 		goto err_drm_dev_unregister;
 
-- 
cgit v0.10.2


From 12cb4c87aa587ff476ffc71120f2dc5d2e857256 Mon Sep 17 00:00:00 2001
From: Xinliang Liu <xinliang.liu@linaro.org>
Date: Sun, 8 May 2016 17:48:55 +0800
Subject: drm/hisilicon: Make kirin_drm_unbind sufficient

Remove deprecated drm_put_dev.
Clean up everything needed in unbind.
Thanks to Daniel Vetter, this issue is reported by him.

Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reported-by: Daniel Vetter <daniel.vetter@intel.com>
Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
index bc410ee..3f94785 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_drv.c
@@ -244,7 +244,12 @@ err_drm_dev_unref:
 
 static void kirin_drm_unbind(struct device *dev)
 {
-	drm_put_dev(dev_get_drvdata(dev));
+	struct drm_device *drm_dev = dev_get_drvdata(dev);
+
+	drm_connector_unregister_all(drm_dev);
+	drm_dev_unregister(drm_dev);
+	kirin_drm_kms_cleanup(drm_dev);
+	drm_dev_unref(drm_dev);
 }
 
 static const struct component_master_ops kirin_drm_ops = {
-- 
cgit v0.10.2


From 165cccc8437704d9f41eae2946774bdf2966245f Mon Sep 17 00:00:00 2001
From: Xinliang Liu <xinliang.liu@linaro.org>
Date: Mon, 9 May 2016 09:59:50 +0800
Subject: drm/hisilicon: Fix DRM_INFO printed issue
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

This patch fixed the bellow no DRM_INFO is printed issue:

if (!delay_count)
	DRM_INFO("phylock and phystopstateclklane is not ready.\n");

There will some printed issues with above info, under certain
circumstances:

If ((BIT(0) | BIT(2)) & val) is never true, break will not happen and
delay_count will be max u32 value (?), and no DRM_INFO is printed.

Also if ((BIT(0) | BIT(2)) & val) is true at the last possible
loop round, break happens, but now delay_count is already zero
( because of earlier delay_count-- ) and DRM_INFO is erroneously
printed.

Thanks to Juha Leppänen, he reports to me this issue.

Signed-off-by: Xinliang Liu <xinliang.liu@linaro.org>
Reported-by: Juha Leppänen <juha_efku@dnainternet.net>

diff --git a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c
index bfbc215..998452a 100644
--- a/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c
+++ b/drivers/gpu/drm/hisilicon/kirin/dw_drm_dsi.c
@@ -430,12 +430,13 @@ static void dsi_set_mipi_phy(void __iomem *base,
 	 * wait for phy's clock ready
 	 */
 	delay_count = 100;
-	while (delay_count--) {
+	while (delay_count) {
 		val = readl(base +  PHY_STATUS);
 		if ((BIT(0) | BIT(2)) & val)
 			break;
 
 		udelay(1);
+		delay_count--;
 	}
 
 	if (!delay_count)
-- 
cgit v0.10.2