[PATCH v4 2/5] sandbox: phy: add driver_data for bind test cmd

[Patrice Chotard <patrice.chotard@st.com>]

Add driver data to existing compatible string "sandbox,phy".
Add an additional compatible string without driver_data

This will verify that bind command parses, finds and passes the
correct driver data to device_bind_with_driver_data() by using
driver_data in the second sandbox_phy_ids table entry.
In sandbox_phy_bind() a check is added to validate driver_data
content.

Signed-off-by: Patrice Chotard <patrice.chotard@st.com>
Reviewed-by: Simon Glass <sjg@chromium.org>
---

Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/phy/sandbox-phy.c | 18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/phy/sandbox-phy.c b/drivers/phy/sandbox-phy.c
index 84ff5c6275..5f36da7692 100644
--- a/drivers/phy/sandbox-phy.c
+++ b/drivers/phy/sandbox-phy.c
@@ -8,6 +8,8 @@
 #include <dm.h>
 #include <generic-phy.h>
 
+#define DRIVER_DATA 0x12345678
+
 struct sandbox_phy_priv {
 	bool initialized;
 	bool on;
@@ -71,6 +73,14 @@ static int sandbox_phy_exit(struct phy *phy)
 	return 0;
 }
 
+static int sandbox_phy_bind(struct udevice *dev)
+{
+	if (dev_get_driver_data(dev) != DRIVER_DATA)
+		return -ENODATA;
+
+	return 0;
+}
+
 static int sandbox_phy_probe(struct udevice *dev)
 {
 	struct sandbox_phy_priv *priv = dev_get_priv(dev);
@@ -90,13 +100,19 @@ static struct phy_ops sandbox_phy_ops = {
 };
 
 static const struct udevice_id sandbox_phy_ids[] = {
-	{ .compatible = "sandbox,phy" },
+	{ .compatible = "sandbox,phy_no_driver_data",
+	},
+
+	{ .compatible = "sandbox,phy",
+	  .data = DRIVER_DATA
+	},
 	{ }
 };
 
 U_BOOT_DRIVER(phy_sandbox) = {
 	.name		= "phy_sandbox",
 	.id		= UCLASS_PHY,
+	.bind		= sandbox_phy_bind,
 	.of_match	= sandbox_phy_ids,
 	.ops		= &sandbox_phy_ops,
 	.probe		= sandbox_phy_probe,
-- 
2.17.1