[PATCH 04/14] phy: qcom-qmp-combo: restructure PHY creation

Johan Hovold
2022-11-11T09:27:02Z

In preparation for supporting devicetree bindings which do not use child
nodes, move the PHY creation to probe() proper and parse the serdes,
dp_com and dp_serdes resources in a dedicated legacy devicetree helper.

Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
---
drivers/phy/qualcomm/phy-qcom-qmp-combo.c | 89 ++++++++++++-----------
1 file changed, 48 insertions(+), 41 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
index e6c7cf723b19..1bc8567a8605 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-combo.c
@@ -2483,12 +2483,10 @@ static int phy_dp_clks_register(struct qmp_combo *qmp, struct device_node *np)
return devm_add_action_or_reset(qmp->dev, phy_clk_release_provider, np);
}

-static int qmp_combo_create_dp(struct qmp_combo *qmp, struct device_node *np)
+static int qmp_combo_parse_dt_lecacy_dp(struct qmp_combo *qmp, struct device_node *np)
{
const struct qmp_phy_cfg *cfg = qmp->cfg;
struct device *dev = qmp->dev;
- struct phy *generic_phy;
- int ret;

/*
* Get memory resources for each PHY:
@@ -2512,25 +2510,13 @@ static int qmp_combo_create_dp(struct qmp_combo *qmp, struct device_node *np)
return PTR_ERR(qmp->dp_tx2);
}

- generic_phy = devm_phy_create(dev, np, &qmp_combo_dp_phy_ops);
- if (IS_ERR(generic_phy)) {
- ret = PTR_ERR(generic_phy);
- dev_err(dev, "failed to create DP PHY: %d\n", ret);
- return ret;
- }
-
- qmp->dp_phy = generic_phy;
- phy_set_drvdata(generic_phy, qmp);
-
return 0;
}

-static int qmp_combo_create_usb(struct qmp_combo *qmp, struct device_node *np)
+static int qmp_combo_parse_dt_lecacy_usb(struct qmp_combo *qmp, struct device_node *np)
{
const struct qmp_phy_cfg *cfg = qmp->cfg;
struct device *dev = qmp->dev;
- struct phy *generic_phy;
- int ret;

/*
* Get memory resources for each PHY:
@@ -2578,15 +2564,34 @@ static int qmp_combo_create_usb(struct qmp_combo *qmp, struct device_node *np)
"failed to get pipe clock\n");
}

- generic_phy = devm_phy_create(dev, np, &qmp_combo_usb_phy_ops);
- if (IS_ERR(generic_phy)) {
- ret = PTR_ERR(generic_phy);
- dev_err(dev, "failed to create USB PHY: %d\n", ret);
+ return 0;
+}
+
+static int qmp_combo_parse_dt_legacy(struct qmp_combo *qmp, struct device_node *usb_np,
+ struct device_node *dp_np)
+{
+ struct platform_device *pdev = to_platform_device(qmp->dev);
+ int ret;
+
+ qmp->serdes = devm_platform_ioremap_resource(pdev, 0);
+ if (IS_ERR(qmp->serdes))
+ return PTR_ERR(qmp->serdes);
+
+ qmp->dp_com = devm_platform_ioremap_resource(pdev, 1);
+ if (IS_ERR(qmp->dp_com))
+ return PTR_ERR(qmp->dp_com);
+
+ qmp->dp_serdes = devm_platform_ioremap_resource(pdev, 2);
+ if (IS_ERR(qmp->dp_serdes))
+ return PTR_ERR(qmp->dp_serdes);
+
+ ret = qmp_combo_parse_dt_lecacy_usb(qmp, usb_np);
+ if (ret)
return ret;
- }

- qmp->usb_phy = generic_phy;
- phy_set_drvdata(generic_phy, qmp);
+ ret = qmp_combo_parse_dt_lecacy_dp(qmp, dp_np);
+ if (ret)
+ return ret;

return 0;
}
@@ -2609,18 +2614,6 @@ static int qmp_combo_probe(struct platform_device *pdev)
if (!qmp->cfg)
return -EINVAL;

- qmp->serdes = devm_platform_ioremap_resource(pdev, 0);
- if (IS_ERR(qmp->serdes))
- return PTR_ERR(qmp->serdes);
-
- qmp->dp_com = devm_platform_ioremap_resource(pdev, 1);
- if (IS_ERR(qmp->dp_com))
- return PTR_ERR(qmp->dp_com);
-
- qmp->dp_serdes = devm_platform_ioremap_resource(pdev, 2);
- if (IS_ERR(qmp->dp_serdes))
- return PTR_ERR(qmp->dp_serdes);
-
mutex_init(&qmp->phy_mutex);

ret = qmp_combo_clk_init(qmp);
@@ -2645,6 +2638,10 @@ static int qmp_combo_probe(struct platform_device *pdev)
return -EINVAL;
}

+ ret = qmp_combo_parse_dt_legacy(qmp, usb_np, dp_np);
+ if (ret)
+ goto err_node_put;
+
pm_runtime_set_active(dev);
ret = devm_pm_runtime_enable(dev);
if (ret)
@@ -2655,21 +2652,31 @@ static int qmp_combo_probe(struct platform_device *pdev)
*/
pm_runtime_forbid(dev);

- ret = qmp_combo_create_usb(qmp, usb_np);
+ ret = phy_pipe_clk_register(qmp, usb_np);
if (ret)
goto err_node_put;

- ret = phy_pipe_clk_register(qmp, usb_np);
+ ret = phy_dp_clks_register(qmp, dp_np);
if (ret)
goto err_node_put;

- ret = qmp_combo_create_dp(qmp, dp_np);
- if (ret)
+ qmp->usb_phy = devm_phy_create(dev, usb_np, &qmp_combo_usb_phy_ops);
+ if (IS_ERR(qmp->usb_phy)) {
+ ret = PTR_ERR(qmp->usb_phy);
+ dev_err(dev, "failed to create USB PHY: %d\n", ret);
goto err_node_put;
+ }

- ret = phy_dp_clks_register(qmp, dp_np);
- if (ret)
+ phy_set_drvdata(qmp->usb_phy, qmp);
+
+ qmp->dp_phy = devm_phy_create(dev, dp_np, &qmp_combo_dp_phy_ops);
+ if (IS_ERR(qmp->dp_phy)) {
+ ret = PTR_ERR(qmp->dp_phy);
+ dev_err(dev, "failed to create DP PHY: %d\n", ret);
goto err_node_put;
+ }
+
+ phy_set_drvdata(qmp->dp_phy, qmp);

phy_provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);

--
2.37.4