* [PATCH v6 1/2] usb: rename phy to usb_phy in HCD
2014-09-24 19:03 [PATCH v6 0/2] Add generic PHY support to USB HCD Sergei Shtylyov
@ 2014-09-24 19:05 ` Sergei Shtylyov
[not found] ` <2300651.HNvMzB0aUB-gHKXc3Y1Z8zGSmamagVegGFoWSdPRAKMAL8bYrjMMd8@public.gmane.org>
2014-09-24 19:09 ` [PATCH v6 2/2] usb: hcd: add generic PHY support Sergei Shtylyov
1 sibling, 1 reply; 6+ messages in thread
From: Sergei Shtylyov @ 2014-09-24 19:05 UTC (permalink / raw)
To: gregkh, linux-usb, Peter.Chen, stern, swarren, thierry.reding,
balbi, linux-tegra, linux-omap
Cc: linux-sh, yoshihiro.shimoda.uh, linux-kernel, antoine.tenart
From: Antoine Tenart <antoine.tenart@free-electrons.com>
The USB PHY member of the HCD structure is renamed to 'usb_phy' and
modifications are done in all drivers accessing it.
This is in preparation to adding the generic PHY support.
Signed-off-by: Antoine Tenart <antoine.tenart@free-electrons.com>
[Sergei: added missing 'drivers/usb/misc/lvstest.c' file, resolved rejects,
updated changelog.]
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
---
Changes in version 6:
- resolved reject, refreshed the patch.
Changes in version 5:
- imported the patch from Antoine Tenart's series;
- added missing 'drivers/usb/misc/lvstest.c' file;
- resolved rejects caused by patch reordering;
- refreshed patch;
- updated changelog.
drivers/usb/chipidea/host.c | 2 +-
drivers/usb/core/hcd.c | 20 ++++++++++----------
drivers/usb/core/hub.c | 8 ++++----
drivers/usb/host/ehci-fsl.c | 16 ++++++++--------
drivers/usb/host/ehci-hub.c | 2 +-
drivers/usb/host/ehci-msm.c | 4 ++--
drivers/usb/host/ehci-tegra.c | 16 ++++++++--------
drivers/usb/host/ohci-omap.c | 20 ++++++++++----------
drivers/usb/misc/lvstest.c | 8 ++++----
include/linux/usb/hcd.h | 2 +-
10 files changed, 49 insertions(+), 49 deletions(-)
Index: usb/drivers/usb/chipidea/host.c
=================================--- usb.orig/drivers/usb/chipidea/host.c
+++ usb/drivers/usb/chipidea/host.c
@@ -59,7 +59,7 @@ static int host_start(struct ci_hdrc *ci
hcd->has_tt = 1;
hcd->power_budget = ci->platdata->power_budget;
- hcd->phy = ci->transceiver;
+ hcd->usb_phy = ci->transceiver;
hcd->tpl_support = ci->platdata->tpl_support;
ehci = hcd_to_ehci(hcd);
Index: usb/drivers/usb/core/hcd.c
=================================--- usb.orig/drivers/usb/core/hcd.c
+++ usb/drivers/usb/core/hcd.c
@@ -2627,7 +2627,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
int retval;
struct usb_device *rhdev;
- if (IS_ENABLED(CONFIG_USB_PHY) && !hcd->phy) {
+ if (IS_ENABLED(CONFIG_USB_PHY) && !hcd->usb_phy) {
struct usb_phy *phy = usb_get_phy_dev(hcd->self.controller, 0);
if (IS_ERR(phy)) {
@@ -2640,7 +2640,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
usb_put_phy(phy);
return retval;
}
- hcd->phy = phy;
+ hcd->usb_phy = phy;
hcd->remove_phy = 1;
}
}
@@ -2788,10 +2788,10 @@ err_allocate_root_hub:
err_register_bus:
hcd_buffer_destroy(hcd);
err_remove_phy:
- if (hcd->remove_phy && hcd->phy) {
- usb_phy_shutdown(hcd->phy);
- usb_put_phy(hcd->phy);
- hcd->phy = NULL;
+ if (hcd->remove_phy && hcd->usb_phy) {
+ usb_phy_shutdown(hcd->usb_phy);
+ usb_put_phy(hcd->usb_phy);
+ hcd->usb_phy = NULL;
}
return retval;
}
@@ -2864,10 +2864,10 @@ void usb_remove_hcd(struct usb_hcd *hcd)
usb_deregister_bus(&hcd->self);
hcd_buffer_destroy(hcd);
- if (hcd->remove_phy && hcd->phy) {
- usb_phy_shutdown(hcd->phy);
- usb_put_phy(hcd->phy);
- hcd->phy = NULL;
+ if (hcd->remove_phy && hcd->usb_phy) {
+ usb_phy_shutdown(hcd->usb_phy);
+ usb_put_phy(hcd->usb_phy);
+ hcd->usb_phy = NULL;
}
usb_put_invalidate_rhdev(hcd);
Index: usb/drivers/usb/core/hub.c
=================================--- usb.orig/drivers/usb/core/hub.c
+++ usb/drivers/usb/core/hub.c
@@ -4467,8 +4467,8 @@ hub_port_init (struct usb_hub *hub, stru
if (retval)
goto fail;
- if (hcd->phy && !hdev->parent)
- usb_phy_notify_connect(hcd->phy, udev->speed);
+ if (hcd->usb_phy && !hdev->parent)
+ usb_phy_notify_connect(hcd->usb_phy, udev->speed);
/*
* Some superspeed devices have finished the link training process
@@ -4626,9 +4626,9 @@ static void hub_port_connect(struct usb_
/* Disconnect any existing devices under this port */
if (udev) {
- if (hcd->phy && !hdev->parent &&
+ if (hcd->usb_phy && !hdev->parent &&
!(portstatus & USB_PORT_STAT_CONNECTION))
- usb_phy_notify_disconnect(hcd->phy, udev->speed);
+ usb_phy_notify_disconnect(hcd->usb_phy, udev->speed);
usb_disconnect(&port_dev->child);
}
Index: usb/drivers/usb/host/ehci-fsl.c
=================================--- usb.orig/drivers/usb/host/ehci-fsl.c
+++ usb/drivers/usb/host/ehci-fsl.c
@@ -136,15 +136,15 @@ static int usb_hcd_fsl_probe(const struc
if (pdata->operating_mode = FSL_USB2_DR_OTG) {
struct ehci_hcd *ehci = hcd_to_ehci(hcd);
- hcd->phy = usb_get_phy(USB_PHY_TYPE_USB2);
+ hcd->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
dev_dbg(&pdev->dev, "hcd=0x%p ehci=0x%p, phy=0x%p\n",
- hcd, ehci, hcd->phy);
+ hcd, ehci, hcd->usb_phy);
- if (!IS_ERR_OR_NULL(hcd->phy)) {
- retval = otg_set_host(hcd->phy->otg,
+ if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
+ retval = otg_set_host(hcd->usb_phy->otg,
&ehci_to_hcd(ehci)->self);
if (retval) {
- usb_put_phy(hcd->phy);
+ usb_put_phy(hcd->usb_phy);
goto err2;
}
} else {
@@ -181,9 +181,9 @@ static void usb_hcd_fsl_remove(struct us
{
struct fsl_usb2_platform_data *pdata = dev_get_platdata(&pdev->dev);
- if (!IS_ERR_OR_NULL(hcd->phy)) {
- otg_set_host(hcd->phy->otg, NULL);
- usb_put_phy(hcd->phy);
+ if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
+ otg_set_host(hcd->usb_phy->otg, NULL);
+ usb_put_phy(hcd->usb_phy);
}
usb_remove_hcd(hcd);
Index: usb/drivers/usb/host/ehci-hub.c
=================================--- usb.orig/drivers/usb/host/ehci-hub.c
+++ usb/drivers/usb/host/ehci-hub.c
@@ -922,7 +922,7 @@ int ehci_hub_control(
#ifdef CONFIG_USB_OTG
if ((hcd->self.otg_port = (wIndex + 1))
&& hcd->self.b_hnp_enable) {
- otg_start_hnp(hcd->phy->otg);
+ otg_start_hnp(hcd->usb_phy->otg);
break;
}
#endif
Index: usb/drivers/usb/host/ehci-msm.c
=================================--- usb.orig/drivers/usb/host/ehci-msm.c
+++ usb/drivers/usb/host/ehci-msm.c
@@ -124,7 +124,7 @@ static int ehci_msm_probe(struct platfor
goto put_hcd;
}
- hcd->phy = phy;
+ hcd->usb_phy = phy;
device_init_wakeup(&pdev->dev, 1);
/*
* OTG device parent of HCD takes care of putting
@@ -151,7 +151,7 @@ static int ehci_msm_remove(struct platfo
pm_runtime_disable(&pdev->dev);
pm_runtime_set_suspended(&pdev->dev);
- otg_set_host(hcd->phy->otg, NULL);
+ otg_set_host(hcd->usb_phy->otg, NULL);
/* FIXME: need to call usb_remove_hcd() here? */
Index: usb/drivers/usb/host/ehci-tegra.c
=================================--- usb.orig/drivers/usb/host/ehci-tegra.c
+++ usb/drivers/usb/host/ehci-tegra.c
@@ -206,7 +206,7 @@ static int tegra_ehci_hub_control(
if (tegra->port_resuming && !(temp & PORT_SUSPEND)) {
/* Resume completed, re-enable disconnect detection */
tegra->port_resuming = 0;
- tegra_usb_phy_postresume(hcd->phy);
+ tegra_usb_phy_postresume(hcd->usb_phy);
}
}
@@ -259,7 +259,7 @@ static int tegra_ehci_hub_control(
goto done;
/* Disable disconnect detection during port resume */
- tegra_usb_phy_preresume(hcd->phy);
+ tegra_usb_phy_preresume(hcd->usb_phy);
ehci->reset_done[wIndex-1] = jiffies + msecs_to_jiffies(25);
@@ -454,7 +454,7 @@ static int tegra_ehci_probe(struct platf
err = PTR_ERR(u_phy);
goto cleanup_clk_en;
}
- hcd->phy = u_phy;
+ hcd->usb_phy = u_phy;
tegra->needs_double_reset = of_property_read_bool(pdev->dev.of_node,
"nvidia,needs-double-reset");
@@ -475,7 +475,7 @@ static int tegra_ehci_probe(struct platf
ehci->caps = hcd->regs + 0x100;
ehci->has_hostpc = soc_config->has_hostpc;
- err = usb_phy_init(hcd->phy);
+ err = usb_phy_init(hcd->usb_phy);
if (err) {
dev_err(&pdev->dev, "Failed to initialize phy\n");
goto cleanup_clk_en;
@@ -490,7 +490,7 @@ static int tegra_ehci_probe(struct platf
}
u_phy->otg->host = hcd_to_bus(hcd);
- err = usb_phy_set_suspend(hcd->phy, 0);
+ err = usb_phy_set_suspend(hcd->usb_phy, 0);
if (err) {
dev_err(&pdev->dev, "Failed to power on the phy\n");
goto cleanup_phy;
@@ -517,7 +517,7 @@ static int tegra_ehci_probe(struct platf
cleanup_otg_set_host:
otg_set_host(u_phy->otg, NULL);
cleanup_phy:
- usb_phy_shutdown(hcd->phy);
+ usb_phy_shutdown(hcd->usb_phy);
cleanup_clk_en:
clk_disable_unprepare(tegra->clk);
cleanup_hcd_create:
@@ -531,9 +531,9 @@ static int tegra_ehci_remove(struct plat
struct tegra_ehci_hcd *tegra (struct tegra_ehci_hcd *)hcd_to_ehci(hcd)->priv;
- otg_set_host(hcd->phy->otg, NULL);
+ otg_set_host(hcd->usb_phy->otg, NULL);
- usb_phy_shutdown(hcd->phy);
+ usb_phy_shutdown(hcd->usb_phy);
usb_remove_hcd(hcd);
clk_disable_unprepare(tegra->clk);
Index: usb/drivers/usb/host/ohci-omap.c
=================================--- usb.orig/drivers/usb/host/ohci-omap.c
+++ usb/drivers/usb/host/ohci-omap.c
@@ -180,10 +180,10 @@ static void start_hnp(struct ohci_hcd *o
unsigned long flags;
u32 l;
- otg_start_hnp(hcd->phy->otg);
+ otg_start_hnp(hcd->usb_phy->otg);
local_irq_save(flags);
- hcd->phy->state = OTG_STATE_A_SUSPEND;
+ hcd->usb_phy->state = OTG_STATE_A_SUSPEND;
writel (RH_PS_PSS, &ohci->regs->roothub.portstatus [port]);
l = omap_readl(OTG_CTRL);
l &= ~OTG_A_BUSREQ;
@@ -220,14 +220,14 @@ static int ohci_omap_reset(struct usb_hc
#ifdef CONFIG_USB_OTG
if (need_transceiver) {
- hcd->phy = usb_get_phy(USB_PHY_TYPE_USB2);
- if (!IS_ERR_OR_NULL(hcd->phy)) {
- int status = otg_set_host(hcd->phy->otg,
+ hcd->usb_phy = usb_get_phy(USB_PHY_TYPE_USB2);
+ if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
+ int status = otg_set_host(hcd->usb_phy->otg,
&ohci_to_hcd(ohci)->self);
dev_dbg(hcd->self.controller, "init %s phy, status %d\n",
- hcd->phy->label, status);
+ hcd->usb_phy->label, status);
if (status) {
- usb_put_phy(hcd->phy);
+ usb_put_phy(hcd->usb_phy);
return status;
}
} else {
@@ -399,9 +399,9 @@ usb_hcd_omap_remove (struct usb_hcd *hcd
dev_dbg(hcd->self.controller, "stopping USB Controller\n");
usb_remove_hcd(hcd);
omap_ohci_clock_power(0);
- if (!IS_ERR_OR_NULL(hcd->phy)) {
- (void) otg_set_host(hcd->phy->otg, 0);
- usb_put_phy(hcd->phy);
+ if (!IS_ERR_OR_NULL(hcd->usb_phy)) {
+ (void) otg_set_host(hcd->usb_phy->otg, 0);
+ usb_put_phy(hcd->usb_phy);
}
if (machine_is_omap_osk())
gpio_free(9);
Index: usb/drivers/usb/misc/lvstest.c
=================================--- usb.orig/drivers/usb/misc/lvstest.c
+++ usb/drivers/usb/misc/lvstest.c
@@ -333,13 +333,13 @@ static void lvs_rh_work(struct work_stru
USB_PORT_STAT_CONNECTION) {
lvs->present = true;
lvs->portnum = i;
- if (hcd->phy)
- usb_phy_notify_connect(hcd->phy,
+ if (hcd->usb_phy)
+ usb_phy_notify_connect(hcd->usb_phy,
USB_SPEED_SUPER);
} else {
lvs->present = false;
- if (hcd->phy)
- usb_phy_notify_disconnect(hcd->phy,
+ if (hcd->usb_phy)
+ usb_phy_notify_disconnect(hcd->usb_phy,
USB_SPEED_SUPER);
}
break;
Index: usb/include/linux/usb/hcd.h
=================================--- usb.orig/include/linux/usb/hcd.h
+++ usb/include/linux/usb/hcd.h
@@ -106,7 +106,7 @@ struct usb_hcd {
* OTG and some Host controllers need software interaction with phys;
* other external phys should be software-transparent
*/
- struct usb_phy *phy;
+ struct usb_phy *usb_phy;
/* Flags that need to be manipulated atomically because they can
* change while the host controller is running. Always use
^ permalink raw reply [flat|nested] 6+ messages in thread* [PATCH v6 2/2] usb: hcd: add generic PHY support
2014-09-24 19:03 [PATCH v6 0/2] Add generic PHY support to USB HCD Sergei Shtylyov
2014-09-24 19:05 ` [PATCH v6 1/2] usb: rename phy to usb_phy in HCD Sergei Shtylyov
@ 2014-09-24 19:09 ` Sergei Shtylyov
1 sibling, 0 replies; 6+ messages in thread
From: Sergei Shtylyov @ 2014-09-24 19:09 UTC (permalink / raw)
To: gregkh, linux-usb
Cc: linux-sh, linux-kernel, antoine.tenart, yoshihiro.shimoda.uh
Add the generic PHY support, analogous to the USB PHY support. Intended it to be
used with the PCI EHCI/OHCI drivers and the xHCI platform driver.
Signed-off-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
Changes in version 5:
- renamed the new 'gen_phy' field of 'struct usb_phy' back to 'phy';
- resolved rejects occured due to a newly added patch.
Changes in version 4:
- refreshed the patch.
Changes in version 3:
- refreshed the patch.
Changes in version 2:
- renamed the new 'phy' field of 'struct usb_phy' to 'gen_phy';
- resolved rejects due to removal of the first patch in the series.
drivers/usb/core/hcd.c | 42 ++++++++++++++++++++++++++++++++++++++++--
include/linux/usb/hcd.h | 1 +
2 files changed, 41 insertions(+), 2 deletions(-)
Index: usb/drivers/usb/core/hcd.c
=================================--- usb.orig/drivers/usb/core/hcd.c
+++ usb/drivers/usb/core/hcd.c
@@ -42,6 +42,7 @@
#include <linux/pm_runtime.h>
#include <linux/types.h>
+#include <linux/phy/phy.h>
#include <linux/usb.h>
#include <linux/usb/hcd.h>
#include <linux/usb/phy.h>
@@ -2645,6 +2646,29 @@ int usb_add_hcd(struct usb_hcd *hcd,
}
}
+ if (IS_ENABLED(CONFIG_GENERIC_PHY)) {
+ struct phy *phy = phy_get(hcd->self.controller, "usb");
+
+ if (IS_ERR(phy)) {
+ retval = PTR_ERR(phy);
+ if (retval = -EPROBE_DEFER)
+ goto err_phy;
+ } else {
+ retval = phy_init(phy);
+ if (retval) {
+ phy_put(phy);
+ goto err_phy;
+ }
+ retval = phy_power_on(phy);
+ if (retval) {
+ phy_exit(phy);
+ phy_put(phy);
+ goto err_phy;
+ }
+ hcd->phy = phy;
+ }
+ }
+
dev_info(hcd->self.controller, "%s\n", hcd->product_desc);
/* Keep old behaviour if authorized_default is not in [0, 1]. */
@@ -2660,7 +2684,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
*/
if ((retval = hcd_buffer_create(hcd)) != 0) {
dev_dbg(hcd->self.controller, "pool alloc failed\n");
- goto err_remove_phy;
+ goto err_create_buf;
}
if ((retval = usb_register_bus(&hcd->self)) < 0)
@@ -2787,7 +2811,14 @@ err_allocate_root_hub:
usb_deregister_bus(&hcd->self);
err_register_bus:
hcd_buffer_destroy(hcd);
-err_remove_phy:
+err_create_buf:
+ if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->phy) {
+ phy_power_off(hcd->phy);
+ phy_exit(hcd->phy);
+ phy_put(hcd->phy);
+ hcd->phy = NULL;
+ }
+err_phy:
if (hcd->remove_phy && hcd->usb_phy) {
usb_phy_shutdown(hcd->usb_phy);
usb_put_phy(hcd->usb_phy);
@@ -2864,6 +2895,13 @@ void usb_remove_hcd(struct usb_hcd *hcd)
usb_deregister_bus(&hcd->self);
hcd_buffer_destroy(hcd);
+
+ if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->phy) {
+ phy_power_off(hcd->phy);
+ phy_exit(hcd->phy);
+ phy_put(hcd->phy);
+ hcd->phy = NULL;
+ }
if (hcd->remove_phy && hcd->usb_phy) {
usb_phy_shutdown(hcd->usb_phy);
usb_put_phy(hcd->usb_phy);
Index: usb/include/linux/usb/hcd.h
=================================--- usb.orig/include/linux/usb/hcd.h
+++ usb/include/linux/usb/hcd.h
@@ -107,6 +107,7 @@ struct usb_hcd {
* other external phys should be software-transparent
*/
struct usb_phy *usb_phy;
+ struct phy *phy;
/* Flags that need to be manipulated atomically because they can
* change while the host controller is running. Always use
^ permalink raw reply [flat|nested] 6+ messages in thread