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Subject[PATCH 22/28] phy: core: Let node ptr of PHY point to PHY and not of PHY provider
Date
In case of multi-phy PHY providers, each PHY should be modeled as a sub
node of the PHY provider. Then each PHY will have a different node pointer
(node pointer of sub node) than that of PHY provider. Added this provision
in the PHY core.
Also fixed all drivers to use the updated API.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Acked-by: Lee Jones <lee.jones@linaro.org>
---
Documentation/phy.txt | 10 ++++++----
drivers/phy/phy-bcm-kona-usb2.c | 2 +-
drivers/phy/phy-berlin-sata.c | 2 +-
drivers/phy/phy-core.c | 25 ++++++++++++++++++-------
drivers/phy/phy-exynos-dp-video.c | 2 +-
drivers/phy/phy-exynos-mipi-video.c | 2 +-
drivers/phy/phy-exynos5-usbdrd.c | 3 ++-
drivers/phy/phy-exynos5250-sata.c | 2 +-
drivers/phy/phy-hix5hd2-sata.c | 2 +-
drivers/phy/phy-mvebu-sata.c | 2 +-
drivers/phy/phy-omap-usb2.c | 2 +-
drivers/phy/phy-qcom-apq8064-sata.c | 3 ++-
drivers/phy/phy-samsung-usb2.c | 3 ++-
drivers/phy/phy-sun4i-usb.c | 2 +-
drivers/phy/phy-ti-pipe3.c | 2 +-
drivers/phy/phy-twl4030-usb.c | 2 +-
drivers/phy/phy-xgene.c | 2 +-
include/linux/phy/phy.h | 15 ++++++++++-----
18 files changed, 52 insertions(+), 31 deletions(-)

diff --git a/Documentation/phy.txt b/Documentation/phy.txt
index ebff6ee..c6594af 100644
--- a/Documentation/phy.txt
+++ b/Documentation/phy.txt
@@ -53,10 +53,12 @@ unregister the PHY.
The PHY driver should create the PHY in order for other peripheral controllers
to make use of it. The PHY framework provides 2 APIs to create the PHY.

-struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
- struct phy_init_data *init_data);
-struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops,
- struct phy_init_data *init_data);
+struct phy *phy_create(struct device *dev, struct device_node *node,
+ const struct phy_ops *ops,
+ struct phy_init_data *init_data);
+struct phy *devm_phy_create(struct device *dev, struct device_node *node,
+ const struct phy_ops *ops,
+ struct phy_init_data *init_data);

The PHY drivers can use one of the above 2 APIs to create the PHY by passing
the device pointer, phy ops and init_data.
diff --git a/drivers/phy/phy-bcm-kona-usb2.c b/drivers/phy/phy-bcm-kona-usb2.c
index e94f5a6..894fe74 100644
--- a/drivers/phy/phy-bcm-kona-usb2.c
+++ b/drivers/phy/phy-bcm-kona-usb2.c
@@ -117,7 +117,7 @@ static int bcm_kona_usb2_probe(struct platform_device *pdev)

platform_set_drvdata(pdev, phy);

- gphy = devm_phy_create(dev, &ops, NULL);
+ gphy = devm_phy_create(dev, NULL, &ops, NULL);
if (IS_ERR(gphy))
return PTR_ERR(gphy);

diff --git a/drivers/phy/phy-berlin-sata.c b/drivers/phy/phy-berlin-sata.c
index c5e688b..5c3a042 100644
--- a/drivers/phy/phy-berlin-sata.c
+++ b/drivers/phy/phy-berlin-sata.c
@@ -239,7 +239,7 @@ static int phy_berlin_sata_probe(struct platform_device *pdev)
if (!phy_desc)
return -ENOMEM;

- phy = devm_phy_create(dev, &phy_berlin_sata_ops, NULL);
+ phy = devm_phy_create(dev, NULL, &phy_berlin_sata_ops, NULL);
if (IS_ERR(phy)) {
dev_err(dev, "failed to create PHY %d\n", phy_id);
return PTR_ERR(phy);
diff --git a/drivers/phy/phy-core.c b/drivers/phy/phy-core.c
index 527e744..ff5eec5 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -415,13 +415,20 @@ struct phy *of_phy_simple_xlate(struct device *dev, struct of_phandle_args
struct phy *phy;
struct class_dev_iter iter;
struct device_node *node = dev->of_node;
+ struct device_node *child;

class_dev_iter_init(&iter, phy_class, NULL, NULL);
while ((dev = class_dev_iter_next(&iter))) {
phy = to_phy(dev);
- if (node != phy->dev.of_node)
+ if (node != phy->dev.of_node) {
+ for_each_child_of_node(node, child) {
+ if (child == phy->dev.of_node)
+ goto phy_found;
+ }
continue;
+ }

+phy_found:
class_dev_iter_exit(&iter);
return phy;
}
@@ -579,13 +586,15 @@ EXPORT_SYMBOL_GPL(devm_of_phy_get);
/**
* phy_create() - create a new phy
* @dev: device that is creating the new phy
+ * @node: device node of the phy
* @ops: function pointers for performing phy operations
* @init_data: contains the list of PHY consumers or NULL
*
* Called to create a phy using phy framework.
*/
-struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
- struct phy_init_data *init_data)
+struct phy *phy_create(struct device *dev, struct device_node *node,
+ const struct phy_ops *ops,
+ struct phy_init_data *init_data)
{
int ret;
int id;
@@ -620,7 +629,7 @@ struct phy *phy_create(struct device *dev, const struct phy_ops *ops,

phy->dev.class = phy_class;
phy->dev.parent = dev;
- phy->dev.of_node = dev->of_node;
+ phy->dev.of_node = node ?: dev->of_node;
phy->id = id;
phy->ops = ops;
phy->init_data = init_data;
@@ -656,6 +665,7 @@ EXPORT_SYMBOL_GPL(phy_create);
/**
* devm_phy_create() - create a new phy
* @dev: device that is creating the new phy
+ * @node: device node of the phy
* @ops: function pointers for performing phy operations
* @init_data: contains the list of PHY consumers or NULL
*
@@ -664,8 +674,9 @@ EXPORT_SYMBOL_GPL(phy_create);
* On driver detach, release function is invoked on the devres data,
* then, devres data is freed.
*/
-struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops,
- struct phy_init_data *init_data)
+struct phy *devm_phy_create(struct device *dev, struct device_node *node,
+ const struct phy_ops *ops,
+ struct phy_init_data *init_data)
{
struct phy **ptr, *phy;

@@ -673,7 +684,7 @@ struct phy *devm_phy_create(struct device *dev, const struct phy_ops *ops,
if (!ptr)
return ERR_PTR(-ENOMEM);

- phy = phy_create(dev, ops, init_data);
+ phy = phy_create(dev, node, ops, init_data);
if (!IS_ERR(phy)) {
*ptr = phy;
devres_add(dev, ptr);
diff --git a/drivers/phy/phy-exynos-dp-video.c b/drivers/phy/phy-exynos-dp-video.c
index 098f822..8b3026e 100644
--- a/drivers/phy/phy-exynos-dp-video.c
+++ b/drivers/phy/phy-exynos-dp-video.c
@@ -77,7 +77,7 @@ static int exynos_dp_video_phy_probe(struct platform_device *pdev)
if (IS_ERR(state->regs))
return PTR_ERR(state->regs);

- phy = devm_phy_create(dev, &exynos_dp_video_phy_ops, NULL);
+ phy = devm_phy_create(dev, NULL, &exynos_dp_video_phy_ops, NULL);
if (IS_ERR(phy)) {
dev_err(dev, "failed to create Display Port PHY\n");
return PTR_ERR(phy);
diff --git a/drivers/phy/phy-exynos-mipi-video.c b/drivers/phy/phy-exynos-mipi-video.c
index 6d6bcf5..b55a92e 100644
--- a/drivers/phy/phy-exynos-mipi-video.c
+++ b/drivers/phy/phy-exynos-mipi-video.c
@@ -136,7 +136,7 @@ static int exynos_mipi_video_phy_probe(struct platform_device *pdev)
spin_lock_init(&state->slock);

for (i = 0; i < EXYNOS_MIPI_PHYS_NUM; i++) {
- struct phy *phy = devm_phy_create(dev,
+ struct phy *phy = devm_phy_create(dev, NULL,
&exynos_mipi_video_phy_ops, NULL);
if (IS_ERR(phy)) {
dev_err(dev, "failed to create PHY %d\n", i);
diff --git a/drivers/phy/phy-exynos5-usbdrd.c b/drivers/phy/phy-exynos5-usbdrd.c
index 205159d..b05302b 100644
--- a/drivers/phy/phy-exynos5-usbdrd.c
+++ b/drivers/phy/phy-exynos5-usbdrd.c
@@ -635,7 +635,8 @@ static int exynos5_usbdrd_phy_probe(struct platform_device *pdev)
dev_vdbg(dev, "Creating usbdrd_phy phy\n");

for (i = 0; i < EXYNOS5_DRDPHYS_NUM; i++) {
- struct phy *phy = devm_phy_create(dev, &exynos5_usbdrd_phy_ops,
+ struct phy *phy = devm_phy_create(dev, NULL,
+ &exynos5_usbdrd_phy_ops,
NULL);
if (IS_ERR(phy)) {
dev_err(dev, "Failed to create usbdrd_phy phy\n");
diff --git a/drivers/phy/phy-exynos5250-sata.c b/drivers/phy/phy-exynos5250-sata.c
index 0568945..19a679a 100644
--- a/drivers/phy/phy-exynos5250-sata.c
+++ b/drivers/phy/phy-exynos5250-sata.c
@@ -210,7 +210,7 @@ static int exynos_sata_phy_probe(struct platform_device *pdev)
return ret;
}

- sata_phy->phy = devm_phy_create(dev, &exynos_sata_phy_ops, NULL);
+ sata_phy->phy = devm_phy_create(dev, NULL, &exynos_sata_phy_ops, NULL);
if (IS_ERR(sata_phy->phy)) {
clk_disable_unprepare(sata_phy->phyclk);
dev_err(dev, "failed to create PHY\n");
diff --git a/drivers/phy/phy-hix5hd2-sata.c b/drivers/phy/phy-hix5hd2-sata.c
index d442834..6a08fa5 100644
--- a/drivers/phy/phy-hix5hd2-sata.c
+++ b/drivers/phy/phy-hix5hd2-sata.c
@@ -156,7 +156,7 @@ static int hix5hd2_sata_phy_probe(struct platform_device *pdev)
if (IS_ERR(priv->peri_ctrl))
priv->peri_ctrl = NULL;

- phy = devm_phy_create(dev, &hix5hd2_sata_phy_ops, NULL);
+ phy = devm_phy_create(dev, NULL, &hix5hd2_sata_phy_ops, NULL);
if (IS_ERR(phy)) {
dev_err(dev, "failed to create PHY\n");
return PTR_ERR(phy);
diff --git a/drivers/phy/phy-mvebu-sata.c b/drivers/phy/phy-mvebu-sata.c
index d70ecd6..cc3c0e1 100644
--- a/drivers/phy/phy-mvebu-sata.c
+++ b/drivers/phy/phy-mvebu-sata.c
@@ -99,7 +99,7 @@ static int phy_mvebu_sata_probe(struct platform_device *pdev)
if (IS_ERR(priv->clk))
return PTR_ERR(priv->clk);

- phy = devm_phy_create(&pdev->dev, &phy_mvebu_sata_ops, NULL);
+ phy = devm_phy_create(&pdev->dev, NULL, &phy_mvebu_sata_ops, NULL);
if (IS_ERR(phy))
return PTR_ERR(phy);

diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 34b3961..93d7835 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -263,7 +263,7 @@ static int omap_usb2_probe(struct platform_device *pdev)

platform_set_drvdata(pdev, phy);

- generic_phy = devm_phy_create(phy->dev, &ops, NULL);
+ generic_phy = devm_phy_create(phy->dev, NULL, &ops, NULL);
if (IS_ERR(generic_phy))
return PTR_ERR(generic_phy);

diff --git a/drivers/phy/phy-qcom-apq8064-sata.c b/drivers/phy/phy-qcom-apq8064-sata.c
index c9b4dd6..d7c01aa 100644
--- a/drivers/phy/phy-qcom-apq8064-sata.c
+++ b/drivers/phy/phy-qcom-apq8064-sata.c
@@ -228,7 +228,8 @@ static int qcom_apq8064_sata_phy_probe(struct platform_device *pdev)
if (IS_ERR(phy->mmio))
return PTR_ERR(phy->mmio);

- generic_phy = devm_phy_create(dev, &qcom_apq8064_sata_phy_ops, NULL);
+ generic_phy = devm_phy_create(dev, NULL, &qcom_apq8064_sata_phy_ops,
+ NULL);
if (IS_ERR(generic_phy)) {
dev_err(dev, "%s: failed to create phy\n", __func__);
return PTR_ERR(generic_phy);
diff --git a/drivers/phy/phy-samsung-usb2.c b/drivers/phy/phy-samsung-usb2.c
index 16aae7a..ae30640 100644
--- a/drivers/phy/phy-samsung-usb2.c
+++ b/drivers/phy/phy-samsung-usb2.c
@@ -196,7 +196,8 @@ static int samsung_usb2_phy_probe(struct platform_device *pdev)
struct samsung_usb2_phy_instance *p = &drv->instances[i];

dev_dbg(dev, "Creating phy \"%s\"\n", label);
- p->phy = devm_phy_create(dev, &samsung_usb2_phy_ops, NULL);
+ p->phy = devm_phy_create(dev, NULL, &samsung_usb2_phy_ops,
+ NULL);
if (IS_ERR(p->phy)) {
dev_err(drv->dev, "Failed to create usb2_phy \"%s\"\n",
label);
diff --git a/drivers/phy/phy-sun4i-usb.c b/drivers/phy/phy-sun4i-usb.c
index 7a4ea55..61ebea4 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -295,7 +295,7 @@ static int sun4i_usb_phy_probe(struct platform_device *pdev)
return PTR_ERR(phy->pmu);
}

- phy->phy = devm_phy_create(dev, &sun4i_usb_phy_ops, NULL);
+ phy->phy = devm_phy_create(dev, NULL, &sun4i_usb_phy_ops, NULL);
if (IS_ERR(phy->phy)) {
dev_err(dev, "failed to create PHY %d\n", i);
return PTR_ERR(phy->phy);
diff --git a/drivers/phy/phy-ti-pipe3.c b/drivers/phy/phy-ti-pipe3.c
index 93bcd67..b964aa9 100644
--- a/drivers/phy/phy-ti-pipe3.c
+++ b/drivers/phy/phy-ti-pipe3.c
@@ -400,7 +400,7 @@ static int ti_pipe3_probe(struct platform_device *pdev)
platform_set_drvdata(pdev, phy);
pm_runtime_enable(phy->dev);

- generic_phy = devm_phy_create(phy->dev, &ops, NULL);
+ generic_phy = devm_phy_create(phy->dev, NULL, &ops, NULL);
if (IS_ERR(generic_phy))
return PTR_ERR(generic_phy);

diff --git a/drivers/phy/phy-twl4030-usb.c b/drivers/phy/phy-twl4030-usb.c
index 2e0e9b3..e1a6623 100644
--- a/drivers/phy/phy-twl4030-usb.c
+++ b/drivers/phy/phy-twl4030-usb.c
@@ -695,7 +695,7 @@ static int twl4030_usb_probe(struct platform_device *pdev)
otg->set_host = twl4030_set_host;
otg->set_peripheral = twl4030_set_peripheral;

- phy = devm_phy_create(twl->dev, &ops, init_data);
+ phy = devm_phy_create(twl->dev, NULL, &ops, init_data);
if (IS_ERR(phy)) {
dev_dbg(&pdev->dev, "Failed to create PHY\n");
return PTR_ERR(phy);
diff --git a/drivers/phy/phy-xgene.c b/drivers/phy/phy-xgene.c
index 4aa1ccd..db809b9 100644
--- a/drivers/phy/phy-xgene.c
+++ b/drivers/phy/phy-xgene.c
@@ -1707,7 +1707,7 @@ static int xgene_phy_probe(struct platform_device *pdev)
ctx->dev = &pdev->dev;
platform_set_drvdata(pdev, ctx);

- ctx->phy = devm_phy_create(ctx->dev, &xgene_phy_ops, NULL);
+ ctx->phy = devm_phy_create(ctx->dev, NULL, &xgene_phy_ops, NULL);
if (IS_ERR(ctx->phy)) {
dev_dbg(&pdev->dev, "Failed to create PHY\n");
rc = PTR_ERR(ctx->phy);
diff --git a/include/linux/phy/phy.h b/include/linux/phy/phy.h
index 9a86945..8cb6f81 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -158,9 +158,10 @@ void devm_phy_put(struct device *dev, struct phy *phy);
struct phy *of_phy_get(struct device_node *np, const char *con_id);
struct phy *of_phy_simple_xlate(struct device *dev,
struct of_phandle_args *args);
-struct phy *phy_create(struct device *dev, const struct phy_ops *ops,
- struct phy_init_data *init_data);
-struct phy *devm_phy_create(struct device *dev,
+struct phy *phy_create(struct device *dev, struct device_node *node,
+ const struct phy_ops *ops,
+ struct phy_init_data *init_data);
+struct phy *devm_phy_create(struct device *dev, struct device_node *node,
const struct phy_ops *ops, struct phy_init_data *init_data);
void phy_destroy(struct phy *phy);
void devm_phy_destroy(struct device *dev, struct phy *phy);
@@ -299,13 +300,17 @@ static inline struct phy *of_phy_simple_xlate(struct device *dev,
}

static inline struct phy *phy_create(struct device *dev,
- const struct phy_ops *ops, struct phy_init_data *init_data)
+ struct device_node *node,
+ const struct phy_ops *ops,
+ struct phy_init_data *init_data)
{
return ERR_PTR(-ENOSYS);
}

static inline struct phy *devm_phy_create(struct device *dev,
- const struct phy_ops *ops, struct phy_init_data *init_data)
+ struct device_node *node,
+ const struct phy_ops *ops,
+ struct phy_init_data *init_data)
{
return ERR_PTR(-ENOSYS);
}
--
1.7.9.5


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