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Message-ID: <1404486474-28312-3-git-send-email-kishon@ti.com>
Date: Fri, 4 Jul 2014 20:37:54 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: <kishon@...com>, <linux-doc@...r.kernel.org>,
<linux-kernel@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>,
<linux-samsung-soc@...r.kernel.org>, <lee.jones@...aro.org>,
<sergei.shtylyov@...entembedded.com>,
<antoine.tenart@...e-electrons.com>
CC: <kgene.kim@...sung.com>, <maxime.ripard@...e-electrons.com>
Subject: [RFC PATCH 2/2] phy: core: the node pointer of PHY need not be the same as that of PHY provider
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@...com>
---
Documentation/phy.txt | 10 ++++++----
drivers/phy/phy-bcm-kona-usb2.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-mvebu-sata.c | 2 +-
drivers/phy/phy-omap-usb2.c | 2 +-
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 ++++++++++-----
15 files changed, 48 insertions(+), 28 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-core.c b/drivers/phy/phy-core.c
index a4a1f783..9ad6691 100644
--- a/drivers/phy/phy-core.c
+++ b/drivers/phy/phy-core.c
@@ -406,13 +406,20 @@ 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;
}
@@ -570,13 +577,15 @@ 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;
@@ -601,7 +610,7 @@ 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?node:dev->of_node;
phy->id = id;
phy->ops = ops;
phy->init_data = init_data;
@@ -633,6 +642,7 @@ 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
*
@@ -641,8 +651,9 @@ 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;
@@ -650,7 +661,7 @@ 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 0786fef..94fc0d1 100644
--- a/drivers/phy/phy-exynos-dp-video.c
+++ b/drivers/phy/phy-exynos-dp-video.c
@@ -76,7 +76,7 @@ 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 ff02668..e29a100 100644
--- a/drivers/phy/phy-exynos-mipi-video.c
+++ b/drivers/phy/phy-exynos-mipi-video.c
@@ -135,7 +135,7 @@ 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 76d862b..950532f 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-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 7007c11..fb17533 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -264,7 +264,7 @@ static int omap_usb2_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-samsung-usb2.c b/drivers/phy/phy-samsung-usb2.c
index 8a8c6bc..8c75add 100644
--- a/drivers/phy/phy-samsung-usb2.c
+++ b/drivers/phy/phy-samsung-usb2.c
@@ -189,7 +189,8 @@ 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 115d8d5..60e11ff 100644
--- a/drivers/phy/phy-sun4i-usb.c
+++ b/drivers/phy/phy-sun4i-usb.c
@@ -294,7 +294,7 @@ 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 2760744..cfb878f 100644
--- a/include/linux/phy/phy.h
+++ b/include/linux/phy/phy.h
@@ -156,9 +156,10 @@ 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);
@@ -297,13 +298,17 @@ 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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