[PATCH 3/8] phy: nop-phy: add optional clk

Peng Fan
2020-10-12T06:23:49Z

Add optional clk for nop phy

Signed-off-by: Peng Fan <peng.fan@nxp.com>
---
drivers/phy/nop-phy.c | 34 ++++++++++++++++++++++++++++++++++
1 file changed, 34 insertions(+)

diff --git a/drivers/phy/nop-phy.c b/drivers/phy/nop-phy.c
index a5eed20f3f..a1afdef736 100644
--- a/drivers/phy/nop-phy.c
+++ b/drivers/phy/nop-phy.c
@@ -4,17 +4,49 @@
* Written by Jean-Jacques Hiblot <jjhiblot@ti.com>
*/

+#include <clk.h>
#include <common.h>
#include <dm.h>
#include <dm/device.h>
#include <generic-phy.h>

+struct nop_phy_priv {
+ struct clk nop_clk;
+};
+
+static int nop_phy_init(struct phy *phy)
+{
+ struct nop_phy_priv *priv = dev_get_priv(phy->dev);
+
+ if (!clk_valid(&priv->nop_clk))
+ return 0;
+
+ return clk_enable(&priv->nop_clk);
+}
+
+static int nop_phy_probe(struct udevice *dev)
+{
+ struct nop_phy_priv *priv = dev_get_priv(dev);
+ int ret;
+
+ if (CONFIG_IS_ENABLED(CLK)) {
+ ret = clk_get_by_name(dev, "main_clk", &priv->nop_clk);
+ if (ret < 0 && ret != -ENODATA) {
+ dev_err(dev, "Failed to get main_clk: %d\n", ret);
+ return ret;
+ }
+ }
+
+ return 0;
+}
+
static const struct udevice_id nop_phy_ids[] = {
{ .compatible = "nop-phy" },
{ }
};

static struct phy_ops nop_phy_ops = {
+ .init = nop_phy_init,
};

U_BOOT_DRIVER(nop_phy) = {
@@ -22,4 +54,6 @@ U_BOOT_DRIVER(nop_phy) = {
.id = UCLASS_PHY,
.of_match = nop_phy_ids,
.ops = &nop_phy_ops,
+ .probe = nop_phy_probe,
+ .priv_auto_alloc_size = sizeof(struct nop_phy_priv),
};
--
2.28.0