[PATCH v10 11/26] scsi: ufs: mediatek: Remove undocumented downstream reset cruft

[Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>]

From: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>

The MediaTek UFS host driver's probe function allows using a
ti,syscon-reset as a reset, without going through the appropriate
abstractions, or by documenting this in the binding at all.

Remove this, it's downstream code and does not belong here.

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Signed-off-by: Nicolas Frattaroli <nicolas.frattaroli@collabora.com>
Signed-off-by: Louis-Alexis Eyraud <louisalexis.eyraud@collabora.com>
---
 drivers/ufs/host/ufs-mediatek.c | 33 +++------------------------------
 1 file changed, 3 insertions(+), 30 deletions(-)

diff --git a/drivers/ufs/host/ufs-mediatek.c b/drivers/ufs/host/ufs-mediatek.c
index 65036c839031..a2749e79514c 100644
--- a/drivers/ufs/host/ufs-mediatek.c
+++ b/drivers/ufs/host/ufs-mediatek.c
@@ -2402,38 +2402,12 @@ MODULE_DEVICE_TABLE(of, ufs_mtk_of_match);
 static int ufs_mtk_probe(struct platform_device *pdev)
 {
 	int err;
-	struct device *dev = &pdev->dev, *phy_dev = NULL;
-	struct device_node *reset_node, *phy_node = NULL;
-	struct platform_device *reset_pdev, *phy_pdev = NULL;
-	struct device_link *link;
 	struct ufs_hba *hba;
+	struct platform_device *phy_pdev = NULL;
+	struct device *dev = &pdev->dev, *phy_dev = NULL;
+	struct device_node *phy_node = NULL;
 	struct ufs_mtk_host *host;
 
-	reset_node = of_find_compatible_node(NULL, NULL,
-					     "ti,syscon-reset");
-	if (!reset_node) {
-		dev_notice(dev, "find ti,syscon-reset fail\n");
-		goto skip_reset;
-	}
-	reset_pdev = of_find_device_by_node(reset_node);
-	if (!reset_pdev) {
-		dev_notice(dev, "find reset_pdev fail\n");
-		goto skip_reset;
-	}
-	link = device_link_add(dev, &reset_pdev->dev,
-		DL_FLAG_AUTOPROBE_CONSUMER);
-	put_device(&reset_pdev->dev);
-	if (!link) {
-		dev_notice(dev, "add reset device_link fail\n");
-		goto skip_reset;
-	}
-	/* supplier is not probed */
-	if (link->status == DL_STATE_DORMANT) {
-		err = -EPROBE_DEFER;
-		goto out;
-	}
-
-skip_reset:
 	/* find phy node */
 	phy_node = of_parse_phandle(dev->of_node, "phys", 0);
 
@@ -2479,7 +2453,6 @@ static int ufs_mtk_probe(struct platform_device *pdev)
 
 out:
 	of_node_put(phy_node);
-	of_node_put(reset_node);
 	return err;
 }
 

-- 
2.55.0