* [PATCH v2 0/8] usb: add support for the generic PHY framework
@ 2014-07-15 14:39 Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 1/8] usb: move the OTG state from the USB PHY to the OTG structure Antoine Ténart
` (10 more replies)
0 siblings, 11 replies; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
Hi all,
This is an attempt to add more common USB code aware of the generic PHY
framework, while keeping the compatibility for the USB PHY one. It does
not add the full support, some USB PHY specific functions not being
available currently in the generic PHY subsystem (e.g. usb_phy_set_power()).
But it allows to use the generic PHY framework in other cases, and might
help others to convert their USB PHY drivers.
A little background: I submitted a series to support USB on Berlin SoCs[1].
One patch added a new PHY driver in drivers/usb/phy and Felipe asked it to
be in the generic PHY framework instead[2]. This PHY being used by a ChipIdea
driver, changes were needed in ChipIdea, OTG and HCD.
This is done in 3 steps:
1. moving the OTG state from the USB PHY structure to the OTG one
2. renaming the field 'phy' to 'usb_phy'
3. adding a field for the generic framework PHY and dissociating its
use from the USB PHY one
Step 1 is in the first patch. Steps 2 and 3 are done for OTG, and ChipIdea
subsystems in patches 2-3 and 7-8.
HCD generic PHY support was made by Sergei and Yoshihiro[1]. I added some
modifications to make this support consistent with this series in patches
4-6.
I tested it by using the ChipIdea driver I introduced, both with an USB PHY
and a PHY driver successfully. I also compiled a multi_v7 kernel (ARM), with
every driver I could enable in the USB section.
I'd like more people to test and your inputs and suggestions on these changes.
Feel free to add Ccs if others might be interested in this. If needed patches
can be squashed or divided, I tried there to group modifications by USB
framework parts (OTG, HCD, ChipIdea).
Patches can also be found at:
git://git.free-electrons.com:users/antoine-tenart/linux.git usb-phy
The series applies on top of Sergei and Yoshihiro generic PHY support in
HCD[1].
Thanks a lot!
Antoine
Changes since v1:
- rebased the series on top of [1] (generic PHY support for HCD)
- split s/phy/usb_phy/ renaming and generic PHY support in separate
patches
[1] https://www.mail-archive.com/linux-usb@vger.kernel.org/msg43471.html
Antoine Ténart (8):
usb: move the OTG state from the USB PHY to the OTG structure
usb: rename phy to usb_phy in OTG
usb: add support to the generic PHY framework in OTG
usb: rename phy to usb_phy in HCD
usb: rename gen_phy to phy in HCD
usb: allow to supply the PHY in the drivers when using HCD
usb: rename transceiver and phy to usb_phy in ChipIdea
usb: chipidea: add support to the generic PHY framework in ChipIdea
drivers/phy/phy-omap-usb2.c | 14 ++----
drivers/usb/chipidea/ci.h | 7 ++-
drivers/usb/chipidea/ci_hdrc_imx.c | 2 +-
drivers/usb/chipidea/ci_hdrc_msm.c | 8 ++--
drivers/usb/chipidea/core.c | 71 ++++++++++++++++++++++-----
drivers/usb/chipidea/debug.c | 5 +-
drivers/usb/chipidea/host.c | 18 ++++---
drivers/usb/chipidea/otg_fsm.c | 18 +++----
drivers/usb/chipidea/udc.c | 4 +-
drivers/usb/common/usb-otg-fsm.c | 8 ++--
drivers/usb/core/hcd.c | 45 +++++++++---------
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/musb/am35x.c | 28 +++++------
drivers/usb/musb/blackfin.c | 18 +++----
drivers/usb/musb/da8xx.c | 28 +++++------
drivers/usb/musb/davinci.c | 18 +++----
drivers/usb/musb/musb_core.c | 94 ++++++++++++++++++------------------
drivers/usb/musb/musb_dsps.c | 26 +++++-----
drivers/usb/musb/musb_gadget.c | 36 +++++++-------
drivers/usb/musb/musb_host.c | 8 ++--
drivers/usb/musb/musb_virthub.c | 22 ++++-----
drivers/usb/musb/omap2430.c | 30 ++++++------
drivers/usb/musb/tusb6010.c | 40 ++++++++--------
drivers/usb/musb/ux500.c | 10 ++--
drivers/usb/phy/phy-ab8500-usb.c | 16 +++----
drivers/usb/phy/phy-fsl-usb.c | 23 ++++-----
drivers/usb/phy/phy-generic.c | 6 +--
drivers/usb/phy/phy-gpio-vbus-usb.c | 12 ++---
drivers/usb/phy/phy-isp1301-omap.c | 10 ++--
drivers/usb/phy/phy-msm-usb.c | 95 +++++++++++++++++++------------------
drivers/usb/phy/phy-mv-usb.c | 50 +++++++++----------
drivers/usb/phy/phy-samsung-usb2.c | 2 +-
drivers/usb/phy/phy-tahvo.c | 8 ++--
drivers/usb/phy/phy-ulpi.c | 6 +--
include/linux/usb/chipidea.h | 4 +-
include/linux/usb/hcd.h | 6 ++-
include/linux/usb/otg.h | 7 ++-
include/linux/usb/phy.h | 1 -
43 files changed, 469 insertions(+), 401 deletions(-)
--
1.9.1
^ permalink raw reply [flat|nested] 25+ messages in thread
* [PATCH v2 1/8] usb: move the OTG state from the USB PHY to the OTG structure
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
@ 2014-07-15 14:39 ` Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 2/8] usb: rename phy to usb_phy in OTG Antoine Ténart
` (9 subsequent siblings)
10 siblings, 0 replies; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
Before using the PHY framework instead of the USB PHY one, we need to
move the OTG state into another place, since it won't be available when
USB PHY isn't used. This patch moves the OTG state into the OTG
structure, and makes all the needed modifications in the drivers
using the OTG state.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
Acked-by: Peter Chen <peter.chen@freescale.com>
---
drivers/phy/phy-omap-usb2.c | 8 +---
drivers/usb/chipidea/debug.c | 3 +-
drivers/usb/chipidea/otg_fsm.c | 12 ++---
drivers/usb/common/usb-otg-fsm.c | 8 ++--
drivers/usb/host/ohci-omap.c | 2 +-
drivers/usb/musb/am35x.c | 28 +++++------
drivers/usb/musb/blackfin.c | 18 +++----
drivers/usb/musb/da8xx.c | 28 +++++------
drivers/usb/musb/davinci.c | 18 +++----
drivers/usb/musb/musb_core.c | 94 ++++++++++++++++++-------------------
drivers/usb/musb/musb_dsps.c | 26 +++++-----
drivers/usb/musb/musb_gadget.c | 36 +++++++-------
drivers/usb/musb/musb_host.c | 8 ++--
drivers/usb/musb/musb_virthub.c | 22 ++++-----
drivers/usb/musb/omap2430.c | 30 ++++++------
drivers/usb/musb/tusb6010.c | 40 ++++++++--------
drivers/usb/musb/ux500.c | 10 ++--
drivers/usb/phy/phy-ab8500-usb.c | 10 ++--
drivers/usb/phy/phy-fsl-usb.c | 10 ++--
drivers/usb/phy/phy-generic.c | 4 +-
drivers/usb/phy/phy-gpio-vbus-usb.c | 10 ++--
drivers/usb/phy/phy-msm-usb.c | 34 +++++++-------
drivers/usb/phy/phy-mv-usb.c | 46 +++++++++---------
include/linux/usb/otg.h | 2 +
include/linux/usb/phy.h | 1 -
25 files changed, 252 insertions(+), 256 deletions(-)
diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 34b396146c8a..32a703ce7a85 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -80,11 +80,9 @@ static int omap_usb_start_srp(struct usb_otg *otg)
static int omap_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
{
- struct usb_phy *phy = otg->phy;
-
otg->host = host;
if (!host)
- phy->state = OTG_STATE_UNDEFINED;
+ otg->state = OTG_STATE_UNDEFINED;
return 0;
}
@@ -92,11 +90,9 @@ static int omap_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
static int omap_usb_set_peripheral(struct usb_otg *otg,
struct usb_gadget *gadget)
{
- struct usb_phy *phy = otg->phy;
-
otg->gadget = gadget;
if (!gadget)
- phy->state = OTG_STATE_UNDEFINED;
+ otg->state = OTG_STATE_UNDEFINED;
return 0;
}
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 7cccab6ff308..9a9702773e43 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -219,8 +219,7 @@ int ci_otg_show(struct seq_file *s, void *unused)
fsm = &ci->fsm;
/* ------ State ----- */
- seq_printf(s, "OTG state: %s\n\n",
- usb_otg_state_string(ci->transceiver->state));
+ usb_otg_state_string(ci->transceiver->otg.state));
/* ------ State Machine Variables ----- */
seq_printf(s, "a_bus_drop: %d\n", fsm->a_bus_drop);
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index caaabc58021e..8cb2508a6b71 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -328,7 +328,7 @@ static void b_ssend_srp_tmout_func(void *ptr, unsigned long indicator)
set_tmout(ci, indicator);
/* only vbus fall below B_sess_vld in b_idle state */
- if (ci->transceiver->state == OTG_STATE_B_IDLE)
+ if (ci->fsm.otg->state == OTG_STATE_B_IDLE)
ci_otg_queue_work(ci);
}
@@ -582,11 +582,11 @@ int ci_otg_fsm_work(struct ci_hdrc *ci)
* when there is no gadget class driver
*/
if (ci->fsm.id && !(ci->driver) &&
- ci->transceiver->state < OTG_STATE_A_IDLE)
+ ci->fsm.otg->state < OTG_STATE_A_IDLE)
return 0;
if (otg_statemachine(&ci->fsm)) {
- if (ci->transceiver->state == OTG_STATE_A_IDLE) {
+ if (ci->fsm.otg->state == OTG_STATE_A_IDLE) {
/*
* Further state change for cases:
* a_idle to b_idle; or
@@ -600,7 +600,7 @@ int ci_otg_fsm_work(struct ci_hdrc *ci)
ci_otg_queue_work(ci);
if (ci->id_event)
ci->id_event = false;
- } else if (ci->transceiver->state == OTG_STATE_B_IDLE) {
+ } else if (ci->fsm.otg->state == OTG_STATE_B_IDLE) {
if (ci->fsm.b_sess_vld) {
ci->fsm.power_up = 0;
/*
@@ -627,7 +627,7 @@ static void ci_otg_fsm_event(struct ci_hdrc *ci)
otg_bsess_vld = hw_read_otgsc(ci, OTGSC_BSV);
port_conn = hw_read(ci, OP_PORTSC, PORTSC_CCS);
- switch (ci->transceiver->state) {
+ switch (ci->fsm.otg->state) {
case OTG_STATE_A_WAIT_BCON:
if (port_conn) {
fsm->b_conn = 1;
@@ -794,7 +794,7 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
ci->transceiver->otg = ci->fsm.otg;
ci->fsm.power_up = 1;
ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
- ci->transceiver->state = OTG_STATE_UNDEFINED;
+ ci->fsm.otg->state = OTG_STATE_UNDEFINED;
ci->fsm.ops = &ci_otg_ops;
mutex_init(&ci->fsm.lock);
diff --git a/drivers/usb/common/usb-otg-fsm.c b/drivers/usb/common/usb-otg-fsm.c
index 98e8340a5bb1..c6b35b77dab7 100644
--- a/drivers/usb/common/usb-otg-fsm.c
+++ b/drivers/usb/common/usb-otg-fsm.c
@@ -124,10 +124,10 @@ static void otg_leave_state(struct otg_fsm *fsm, enum usb_otg_state old_state)
static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
{
state_changed = 1;
- if (fsm->otg->phy->state == new_state)
+ if (fsm->otg->state == new_state)
return 0;
VDBG("Set state: %s\n", usb_otg_state_string(new_state));
- otg_leave_state(fsm, fsm->otg->phy->state);
+ otg_leave_state(fsm, fsm->otg->state);
switch (new_state) {
case OTG_STATE_B_IDLE:
otg_drv_vbus(fsm, 0);
@@ -236,7 +236,7 @@ static int otg_set_state(struct otg_fsm *fsm, enum usb_otg_state new_state)
break;
}
- fsm->otg->phy->state = new_state;
+ fsm->otg->state = new_state;
return 0;
}
@@ -247,7 +247,7 @@ int otg_statemachine(struct otg_fsm *fsm)
mutex_lock(&fsm->lock);
- state = fsm->otg->phy->state;
+ state = fsm->otg->state;
state_changed = 0;
/* State machine state change judgement */
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index c923cafcaca7..61967405b56d 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -183,7 +183,7 @@ static void start_hnp(struct ohci_hcd *ohci)
otg_start_hnp(hcd->phy->otg);
local_irq_save(flags);
- hcd->phy->state = OTG_STATE_A_SUSPEND;
+ hcd->phy->otg.state = OTG_STATE_A_SUSPEND;
writel (RH_PS_PSS, &ohci->regs->roothub.portstatus [port]);
l = omap_readl(OTG_CTRL);
l &= ~OTG_A_BUSREQ;
diff --git a/drivers/usb/musb/am35x.c b/drivers/usb/musb/am35x.c
index 0a34dd859555..aef4a46399ce 100644
--- a/drivers/usb/musb/am35x.c
+++ b/drivers/usb/musb/am35x.c
@@ -148,25 +148,25 @@ static void otg_timer(unsigned long _musb)
*/
devctl = musb_readb(mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_BCON:
devctl &= ~MUSB_DEVCTL_SESSION;
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
break;
case OTG_STATE_A_WAIT_VFALL:
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
musb_writel(musb->ctrl_base, CORE_INTR_SRC_SET_REG,
MUSB_INTR_VBUSERROR << AM35X_INTR_USB_SHIFT);
break;
@@ -175,7 +175,7 @@ static void otg_timer(unsigned long _musb)
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
else
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
break;
default:
break;
@@ -192,9 +192,9 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
/* Never idle if active, or when VBUS timeout is not set as host */
if (musb->is_active || (musb->a_wait_bcon == 0 &&
- musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
+ musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&otg_workaround);
last_timer = jiffies;
return;
@@ -207,7 +207,7 @@ static void am35x_musb_try_idle(struct musb *musb, unsigned long timeout)
last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
jiffies_to_msecs(timeout - jiffies));
mod_timer(&otg_workaround, timeout);
}
@@ -277,27 +277,27 @@ static irqreturn_t am35x_musb_interrupt(int irq, void *hci)
* devctl.
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
portstate(musb->port1_status |= USB_PORT_STAT_POWER);
del_timer(&otg_workaround);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
}
/* NOTE: this must complete power-on within 100 ms. */
dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
drvvbus ? "on" : "off",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
err ? " ERROR" : "",
devctl);
ret = IRQ_HANDLED;
@@ -323,7 +323,7 @@ eoi:
}
/* Poll for ID change */
- if (musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
diff --git a/drivers/usb/musb/blackfin.c b/drivers/usb/musb/blackfin.c
index d40d5f0b5528..a241a14e255f 100644
--- a/drivers/usb/musb/blackfin.c
+++ b/drivers/usb/musb/blackfin.c
@@ -185,8 +185,8 @@ static irqreturn_t blackfin_interrupt(int irq, void *__hci)
}
/* Start sampling ID pin, when plug is removed from MUSB */
- if ((musb->xceiv->state == OTG_STATE_B_IDLE
- || musb->xceiv->state == OTG_STATE_A_WAIT_BCON) ||
+ if ((musb->xceiv->otg->state == OTG_STATE_B_IDLE
+ || musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON) ||
(musb->int_usb & MUSB_INTR_DISCONNECT && is_host_active(musb))) {
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
musb->a_wait_bcon = TIMER_DELAY;
@@ -205,7 +205,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
static u8 toggle;
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_IDLE:
case OTG_STATE_A_WAIT_BCON:
/* Start a new session */
@@ -219,7 +219,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
if (!(val & MUSB_DEVCTL_BDEVICE)) {
gpio_set_value(musb->config->gpio_vrsel, 1);
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
} else {
gpio_set_value(musb->config->gpio_vrsel, 0);
/* Ignore VBUSERROR and SUSPEND IRQ */
@@ -229,7 +229,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
val = MUSB_INTR_SUSPEND | MUSB_INTR_VBUSERROR;
musb_writeb(musb->mregs, MUSB_INTRUSB, val);
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
}
mod_timer(&musb_conn_timer, jiffies + TIMER_DELAY);
break;
@@ -245,7 +245,7 @@ static void musb_conn_timer_handler(unsigned long _musb)
if (!(val & MUSB_DEVCTL_BDEVICE)) {
gpio_set_value(musb->config->gpio_vrsel, 1);
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
} else {
gpio_set_value(musb->config->gpio_vrsel, 0);
@@ -280,13 +280,13 @@ static void musb_conn_timer_handler(unsigned long _musb)
break;
default:
dev_dbg(musb->controller, "%s state not handled\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
break;
}
spin_unlock_irqrestore(&musb->lock, flags);
dev_dbg(musb->controller, "state is %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
static void bfin_musb_enable(struct musb *musb)
@@ -307,7 +307,7 @@ static void bfin_musb_set_vbus(struct musb *musb, int is_on)
dev_dbg(musb->controller, "VBUS %s, devctl %02x "
/* otg %3x conf %08x prcm %08x */ "\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
musb_readb(musb->mregs, MUSB_DEVCTL));
}
diff --git a/drivers/usb/musb/da8xx.c b/drivers/usb/musb/da8xx.c
index 058775e647ad..527c7fe60ece 100644
--- a/drivers/usb/musb/da8xx.c
+++ b/drivers/usb/musb/da8xx.c
@@ -198,20 +198,20 @@ static void otg_timer(unsigned long _musb)
*/
devctl = musb_readb(mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_BCON:
devctl &= ~MUSB_DEVCTL_SESSION;
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
break;
@@ -226,7 +226,7 @@ static void otg_timer(unsigned long _musb)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
break;
}
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
musb_writel(musb->ctrl_base, DA8XX_USB_INTR_SRC_SET_REG,
MUSB_INTR_VBUSERROR << DA8XX_INTR_USB_SHIFT);
break;
@@ -248,7 +248,7 @@ static void otg_timer(unsigned long _musb)
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
else
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
break;
default:
break;
@@ -265,9 +265,9 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
/* Never idle if active, or when VBUS timeout is not set as host */
if (musb->is_active || (musb->a_wait_bcon == 0 &&
- musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
+ musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&otg_workaround);
last_timer = jiffies;
return;
@@ -280,7 +280,7 @@ static void da8xx_musb_try_idle(struct musb *musb, unsigned long timeout)
last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
jiffies_to_msecs(timeout - jiffies));
mod_timer(&otg_workaround, timeout);
}
@@ -341,26 +341,26 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
* devctl.
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
portstate(musb->port1_status |= USB_PORT_STAT_POWER);
del_timer(&otg_workaround);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
}
dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
drvvbus ? "on" : "off",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
err ? " ERROR" : "",
devctl);
ret = IRQ_HANDLED;
@@ -375,7 +375,7 @@ static irqreturn_t da8xx_musb_interrupt(int irq, void *hci)
musb_writel(reg_base, DA8XX_USB_END_OF_INTR_REG, 0);
/* Poll for ID change */
- if (musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
diff --git a/drivers/usb/musb/davinci.c b/drivers/usb/musb/davinci.c
index de8492b06e46..c9b3fdb1bb8b 100644
--- a/drivers/usb/musb/davinci.c
+++ b/drivers/usb/musb/davinci.c
@@ -214,10 +214,10 @@ static void otg_timer(unsigned long _musb)
*/
devctl = musb_readb(mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "poll devctl %02x (%s)\n", devctl,
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_VFALL:
/* Wait till VBUS falls below SessionEnd (~0.2V); the 1.3 RTL
* seems to mis-handle session "start" otherwise (or in our
@@ -228,7 +228,7 @@ static void otg_timer(unsigned long _musb)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
break;
}
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
musb_writel(musb->ctrl_base, DAVINCI_USB_INT_SET_REG,
MUSB_INTR_VBUSERROR << DAVINCI_USB_USBINT_SHIFT);
break;
@@ -251,7 +251,7 @@ static void otg_timer(unsigned long _musb)
if (devctl & MUSB_DEVCTL_BDEVICE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
else
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
break;
default:
break;
@@ -325,20 +325,20 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
* to stop registering in devctl.
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (drvvbus) {
MUSB_HST_MODE(musb);
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
portstate(musb->port1_status |= USB_PORT_STAT_POWER);
del_timer(&otg_workaround);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
portstate(musb->port1_status &= ~USB_PORT_STAT_POWER);
}
@@ -348,7 +348,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
davinci_musb_source_power(musb, drvvbus, 0);
dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
drvvbus ? "on" : "off",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
err ? " ERROR" : "",
devctl);
retval = IRQ_HANDLED;
@@ -361,7 +361,7 @@ static irqreturn_t davinci_musb_interrupt(int irq, void *__hci)
musb_writel(tibase, DAVINCI_USB_EOI_REG, 0);
/* poll for ID change */
- if (musb->xceiv->state == OTG_STATE_B_IDLE)
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE)
mod_timer(&otg_workaround, jiffies + POLL_SECONDS * HZ);
spin_unlock_irqrestore(&musb->lock, flags);
diff --git a/drivers/usb/musb/musb_core.c b/drivers/usb/musb/musb_core.c
index eff3c5cf84f4..b8296ff103a1 100644
--- a/drivers/usb/musb/musb_core.c
+++ b/drivers/usb/musb/musb_core.c
@@ -360,23 +360,23 @@ static void musb_otg_timer_func(unsigned long data)
unsigned long flags;
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_WAIT_ACON:
dev_dbg(musb->controller, "HNP: b_wait_acon timeout; back to b_peripheral\n");
musb_g_disconnect(musb);
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->is_active = 0;
break;
case OTG_STATE_A_SUSPEND:
case OTG_STATE_A_WAIT_BCON:
dev_dbg(musb->controller, "HNP: %s timeout\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
musb_platform_set_vbus(musb, 0);
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
break;
default:
dev_dbg(musb->controller, "HNP: Unhandled mode %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
spin_unlock_irqrestore(&musb->lock, flags);
}
@@ -391,19 +391,19 @@ void musb_hnp_stop(struct musb *musb)
u8 reg;
dev_dbg(musb->controller, "HNP: stop from %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_PERIPHERAL:
musb_g_disconnect(musb);
dev_dbg(musb->controller, "HNP: back to %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
break;
case OTG_STATE_B_HOST:
dev_dbg(musb->controller, "HNP: Disabling HR\n");
if (hcd)
hcd->self.is_b_host = 0;
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
MUSB_DEV_MODE(musb);
reg = musb_readb(mbase, MUSB_POWER);
reg |= MUSB_POWER_SUSPENDM;
@@ -412,7 +412,7 @@ void musb_hnp_stop(struct musb *musb)
break;
default:
dev_dbg(musb->controller, "HNP: Stopping in unknown state %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
/*
@@ -449,13 +449,13 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
*/
if (int_usb & MUSB_INTR_RESUME) {
handled = IRQ_HANDLED;
- dev_dbg(musb->controller, "RESUME (%s)\n", usb_otg_state_string(musb->xceiv->state));
+ dev_dbg(musb->controller, "RESUME (%s)\n", usb_otg_state_string(musb->xceiv->otg->state));
if (devctl & MUSB_DEVCTL_HM) {
void __iomem *mbase = musb->mregs;
u8 power;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
/* remote wakeup? later, GetPortStatus
* will stop RESUME signaling
@@ -482,25 +482,25 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
&musb->finish_resume_work,
msecs_to_jiffies(20));
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
musb->is_active = 1;
musb_host_resume_root_hub(musb);
break;
case OTG_STATE_B_WAIT_ACON:
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->is_active = 1;
MUSB_DEV_MODE(musb);
break;
default:
WARNING("bogus %s RESUME (%s)\n",
"host",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
} else {
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
/* possibly DISCONNECT is upcoming */
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
musb_host_resume_root_hub(musb);
break;
case OTG_STATE_B_WAIT_ACON:
@@ -523,7 +523,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
default:
WARNING("bogus %s RESUME (%s)\n",
"peripheral",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
}
@@ -539,7 +539,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
}
dev_dbg(musb->controller, "SESSION_REQUEST (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
/* IRQ arrives from ID pin sense or (later, if VBUS power
* is removed) SRP. responses are time critical:
@@ -550,7 +550,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
*/
musb_writeb(mbase, MUSB_DEVCTL, MUSB_DEVCTL_SESSION);
musb->ep0_stage = MUSB_EP0_START;
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
musb_platform_set_vbus(musb, 1);
@@ -576,7 +576,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
* REVISIT: do delays from lots of DEBUG_KERNEL checks
* make trouble here, keeping VBUS < 4.4V ?
*/
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_HOST:
/* recovery is dicey once we've gotten past the
* initial stages of enumeration, but if VBUS
@@ -605,7 +605,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
dev_printk(ignore ? KERN_DEBUG : KERN_ERR, musb->controller,
"VBUS_ERROR in %s (%02x, %s), retry #%d, port1 %08x\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
devctl,
({ char *s;
switch (devctl & MUSB_DEVCTL_VBUS) {
@@ -630,10 +630,10 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
if (int_usb & MUSB_INTR_SUSPEND) {
dev_dbg(musb->controller, "SUSPEND (%s) devctl %02x\n",
- usb_otg_state_string(musb->xceiv->state), devctl);
+ usb_otg_state_string(musb->xceiv->otg->state), devctl);
handled = IRQ_HANDLED;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_PERIPHERAL:
/* We also come here if the cable is removed, since
* this silicon doesn't report ID-no-longer-grounded.
@@ -657,7 +657,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
musb_g_suspend(musb);
musb->is_active = musb->g.b_hnp_enable;
if (musb->is_active) {
- musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
+ musb->xceiv->otg->state = OTG_STATE_B_WAIT_ACON;
dev_dbg(musb->controller, "HNP: Setting timer for b_ase0_brst\n");
mod_timer(&musb->otg_timer, jiffies
+ msecs_to_jiffies(
@@ -670,7 +670,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
+ msecs_to_jiffies(musb->a_wait_bcon));
break;
case OTG_STATE_A_HOST:
- musb->xceiv->state = OTG_STATE_A_SUSPEND;
+ musb->xceiv->otg->state = OTG_STATE_A_SUSPEND;
musb->is_active = musb->hcd->self.b_hnp_enable;
break;
case OTG_STATE_B_HOST:
@@ -713,7 +713,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
musb->port1_status |= USB_PORT_STAT_LOW_SPEED;
/* indicate new connection to OTG machine */
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_PERIPHERAL:
if (int_usb & MUSB_INTR_SUSPEND) {
dev_dbg(musb->controller, "HNP: SUSPEND+CONNECT, now b_host\n");
@@ -725,7 +725,7 @@ static irqreturn_t musb_stage0_irq(struct musb *musb, u8 int_usb,
case OTG_STATE_B_WAIT_ACON:
dev_dbg(musb->controller, "HNP: CONNECT, now b_host\n");
b_host:
- musb->xceiv->state = OTG_STATE_B_HOST;
+ musb->xceiv->otg->state = OTG_STATE_B_HOST;
if (musb->hcd)
musb->hcd->self.is_b_host = 1;
del_timer(&musb->otg_timer);
@@ -733,7 +733,7 @@ b_host:
default:
if ((devctl & MUSB_DEVCTL_VBUS)
== (3 << MUSB_DEVCTL_VBUS_SHIFT)) {
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
if (hcd)
hcd->self.is_b_host = 0;
}
@@ -743,16 +743,16 @@ b_host:
musb_host_poke_root_hub(musb);
dev_dbg(musb->controller, "CONNECT (%s) devctl %02x\n",
- usb_otg_state_string(musb->xceiv->state), devctl);
+ usb_otg_state_string(musb->xceiv->otg->state), devctl);
}
if (int_usb & MUSB_INTR_DISCONNECT) {
dev_dbg(musb->controller, "DISCONNECT (%s) as %s, devctl %02x\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
MUSB_MODE(musb), devctl);
handled = IRQ_HANDLED;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_HOST:
case OTG_STATE_A_SUSPEND:
musb_host_resume_root_hub(musb);
@@ -770,7 +770,7 @@ b_host:
musb_root_disconnect(musb);
if (musb->hcd)
musb->hcd->self.is_b_host = 0;
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
MUSB_DEV_MODE(musb);
musb_g_disconnect(musb);
break;
@@ -786,7 +786,7 @@ b_host:
break;
default:
WARNING("unhandled DISCONNECT transition (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
break;
}
}
@@ -812,15 +812,15 @@ b_host:
}
} else {
dev_dbg(musb->controller, "BUS RESET as %s\n",
- usb_otg_state_string(musb->xceiv->state));
- switch (musb->xceiv->state) {
+ usb_otg_state_string(musb->xceiv->otg->state));
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
musb_g_reset(musb);
/* FALLTHROUGH */
case OTG_STATE_A_WAIT_BCON: /* OPT TD.4.7-900ms */
/* never use invalid T(a_wait_bcon) */
dev_dbg(musb->controller, "HNP: in %s, %d msec timeout\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
TA_WAIT_BCON(musb));
mod_timer(&musb->otg_timer, jiffies
+ msecs_to_jiffies(TA_WAIT_BCON(musb)));
@@ -831,19 +831,19 @@ b_host:
break;
case OTG_STATE_B_WAIT_ACON:
dev_dbg(musb->controller, "HNP: RESET (%s), to b_peripheral\n",
- usb_otg_state_string(musb->xceiv->state));
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ usb_otg_state_string(musb->xceiv->otg->state));
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb_g_reset(musb);
break;
case OTG_STATE_B_IDLE:
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
/* FALLTHROUGH */
case OTG_STATE_B_PERIPHERAL:
musb_g_reset(musb);
break;
default:
dev_dbg(musb->controller, "Unhandled BUS RESET as %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
}
@@ -1631,7 +1631,7 @@ musb_mode_show(struct device *dev, struct device_attribute *attr, char *buf)
int ret = -EINVAL;
spin_lock_irqsave(&musb->lock, flags);
- ret = sprintf(buf, "%s\n", usb_otg_state_string(musb->xceiv->state));
+ ret = sprintf(buf, "%s\n", usb_otg_state_string(musb->xceiv->otg->state));
spin_unlock_irqrestore(&musb->lock, flags);
return ret;
@@ -1676,7 +1676,7 @@ musb_vbus_store(struct device *dev, struct device_attribute *attr,
spin_lock_irqsave(&musb->lock, flags);
/* force T(a_wait_bcon) to be zero/unlimited *OR* valid */
musb->a_wait_bcon = val ? max_t(int, val, OTG_TIME_A_WAIT_BCON) : 0 ;
- if (musb->xceiv->state == OTG_STATE_A_WAIT_BCON)
+ if (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)
musb->is_active = 0;
musb_platform_try_idle(musb, jiffies + msecs_to_jiffies(val));
spin_unlock_irqrestore(&musb->lock, flags);
@@ -1744,8 +1744,8 @@ static void musb_irq_work(struct work_struct *data)
{
struct musb *musb = container_of(data, struct musb, irq_work);
- if (musb->xceiv->state != musb->xceiv_old_state) {
- musb->xceiv_old_state = musb->xceiv->state;
+ if (musb->xceiv->otg->state != musb->xceiv_old_state) {
+ musb->xceiv_old_state = musb->xceiv->otg->state;
sysfs_notify(&musb->controller->kobj, NULL, "mode");
}
}
@@ -1982,10 +1982,10 @@ musb_init_controller(struct device *dev, int nIrq, void __iomem *ctrl)
if (musb->xceiv->otg->default_a) {
MUSB_HST_MODE(musb);
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
} else {
MUSB_DEV_MODE(musb);
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
}
switch (musb->port_mode) {
diff --git a/drivers/usb/musb/musb_dsps.c b/drivers/usb/musb/musb_dsps.c
index 09529f94e72d..eda50336755b 100644
--- a/drivers/usb/musb/musb_dsps.c
+++ b/drivers/usb/musb/musb_dsps.c
@@ -170,9 +170,9 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
/* Never idle if active, or when VBUS timeout is not set as host */
if (musb->is_active || (musb->a_wait_bcon == 0 &&
- musb->xceiv->state == OTG_STATE_A_WAIT_BCON)) {
+ musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON)) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&glue->timer);
glue->last_timer = jiffies;
return;
@@ -192,7 +192,7 @@ static void dsps_musb_try_idle(struct musb *musb, unsigned long timeout)
glue->last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, starting idle timer for %u ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
jiffies_to_msecs(timeout - jiffies));
mod_timer(&glue->timer, timeout);
}
@@ -256,10 +256,10 @@ static void otg_timer(unsigned long _musb)
*/
devctl = dsps_readb(mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "Poll devctl %02x (%s)\n", devctl,
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_BCON:
dsps_writeb(musb->mregs, MUSB_DEVCTL, 0);
skip_session = 1;
@@ -268,10 +268,10 @@ static void otg_timer(unsigned long _musb)
case OTG_STATE_A_IDLE:
case OTG_STATE_B_IDLE:
if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
if (!(devctl & MUSB_DEVCTL_SESSION) && !skip_session)
@@ -279,7 +279,7 @@ static void otg_timer(unsigned long _musb)
mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
break;
case OTG_STATE_A_WAIT_VFALL:
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
dsps_writel(musb->ctrl_base, wrp->coreintr_set,
MUSB_INTR_VBUSERROR << wrp->usb_shift);
break;
@@ -364,26 +364,26 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
* devctl.
*/
musb->int_usb &= ~MUSB_INTR_VBUSERROR;
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
mod_timer(&glue->timer,
jiffies + wrp->poll_seconds * HZ);
WARNING("VBUS error workaround (delay coming)\n");
} else if (drvvbus) {
MUSB_HST_MODE(musb);
musb->xceiv->otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
del_timer(&glue->timer);
} else {
musb->is_active = 0;
MUSB_DEV_MODE(musb);
musb->xceiv->otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
}
/* NOTE: this must complete power-on within 100 ms. */
dev_dbg(musb->controller, "VBUS %s (%s)%s, devctl %02x\n",
drvvbus ? "on" : "off",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
err ? " ERROR" : "",
devctl);
ret = IRQ_HANDLED;
@@ -393,7 +393,7 @@ static irqreturn_t dsps_interrupt(int irq, void *hci)
ret |= musb_interrupt(musb);
/* Poll for ID change in OTG port mode */
- if (musb->xceiv->state == OTG_STATE_B_IDLE &&
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE &&
musb->port_mode == MUSB_PORT_MODE_DUAL_ROLE)
mod_timer(&glue->timer, jiffies + wrp->poll_seconds * HZ);
out:
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index d4aa779339f1..b811a5e9ce4f 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1546,7 +1546,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget)
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_PERIPHERAL:
/* NOTE: OTG state machine doesn't include B_SUSPENDED;
* that's part of the standard usb 1.1 state machine, and
@@ -1587,7 +1587,7 @@ static int musb_gadget_wakeup(struct usb_gadget *gadget)
goto done;
default:
dev_dbg(musb->controller, "Unhandled wake: %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
goto done;
}
@@ -1792,7 +1792,7 @@ int musb_gadget_setup(struct musb *musb)
MUSB_DEV_MODE(musb);
musb->xceiv->otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
/* this "gadget" abstracts/virtualizes the controller */
musb->g.name = musb_driver_name;
@@ -1860,7 +1860,7 @@ static int musb_gadget_start(struct usb_gadget *g,
musb->is_active = 1;
otg_set_peripheral(otg, &musb->g);
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
spin_unlock_irqrestore(&musb->lock, flags);
musb_start(musb);
@@ -1945,7 +1945,7 @@ static int musb_gadget_stop(struct usb_gadget *g,
(void) musb_gadget_vbus_draw(&musb->g, 0);
- musb->xceiv->state = OTG_STATE_UNDEFINED;
+ musb->xceiv->otg->state = OTG_STATE_UNDEFINED;
stop_activity(musb, driver);
otg_set_peripheral(musb->xceiv->otg, NULL);
@@ -1975,7 +1975,7 @@ static int musb_gadget_stop(struct usb_gadget *g,
void musb_g_resume(struct musb *musb)
{
musb->is_suspended = 0;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_IDLE:
break;
case OTG_STATE_B_WAIT_ACON:
@@ -1989,7 +1989,7 @@ void musb_g_resume(struct musb *musb)
break;
default:
WARNING("unhandled RESUME transition (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
@@ -2001,10 +2001,10 @@ void musb_g_suspend(struct musb *musb)
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
dev_dbg(musb->controller, "devctl %02x\n", devctl);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_B_IDLE:
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
break;
case OTG_STATE_B_PERIPHERAL:
musb->is_suspended = 1;
@@ -2019,7 +2019,7 @@ void musb_g_suspend(struct musb *musb)
* A_PERIPHERAL may need care too
*/
WARNING("unhandled SUSPEND transition (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
@@ -2050,22 +2050,22 @@ void musb_g_disconnect(struct musb *musb)
spin_lock(&musb->lock);
}
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
default:
dev_dbg(musb->controller, "Unhandled disconnect %s, setting a_idle\n",
- usb_otg_state_string(musb->xceiv->state));
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ usb_otg_state_string(musb->xceiv->otg->state));
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
break;
case OTG_STATE_A_PERIPHERAL:
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
MUSB_HST_MODE(musb);
break;
case OTG_STATE_B_WAIT_ACON:
case OTG_STATE_B_HOST:
case OTG_STATE_B_PERIPHERAL:
case OTG_STATE_B_IDLE:
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
break;
case OTG_STATE_B_SRP_INIT:
break;
@@ -2125,13 +2125,13 @@ __acquires(musb->lock)
* In that case, do not rely on devctl for setting
* peripheral mode.
*/
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->g.is_a_peripheral = 0;
} else if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_B_PERIPHERAL;
musb->g.is_a_peripheral = 0;
} else {
- musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
}
diff --git a/drivers/usb/musb/musb_host.c b/drivers/usb/musb/musb_host.c
index eb06291a40c8..3ccb4d83bcfa 100644
--- a/drivers/usb/musb/musb_host.c
+++ b/drivers/usb/musb/musb_host.c
@@ -2462,7 +2462,7 @@ static int musb_bus_suspend(struct usb_hcd *hcd)
if (!is_host_active(musb))
return 0;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
return 0;
case OTG_STATE_A_WAIT_VRISE:
@@ -2472,7 +2472,7 @@ static int musb_bus_suspend(struct usb_hcd *hcd)
*/
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if ((devctl & MUSB_DEVCTL_VBUS) == MUSB_DEVCTL_VBUS)
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
break;
default:
break;
@@ -2480,7 +2480,7 @@ static int musb_bus_suspend(struct usb_hcd *hcd)
if (musb->is_active) {
WARNING("trying to suspend as %s while active\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
return -EBUSY;
} else
return 0;
@@ -2677,7 +2677,7 @@ int musb_host_setup(struct musb *musb, int power_budget)
MUSB_HST_MODE(musb);
musb->xceiv->otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
otg_set_host(musb->xceiv->otg, &hcd->self);
hcd->self.otg_port = 1;
diff --git a/drivers/usb/musb/musb_virthub.c b/drivers/usb/musb/musb_virthub.c
index e2d2d8c9891b..a133bd8c5dc7 100644
--- a/drivers/usb/musb/musb_virthub.c
+++ b/drivers/usb/musb/musb_virthub.c
@@ -69,7 +69,7 @@ void musb_host_finish_resume(struct work_struct *work)
musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
usb_hcd_poll_rh_status(musb->hcd);
/* NOTE: it might really be A_WAIT_BCON ... */
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
spin_unlock_irqrestore(&musb->lock, flags);
}
@@ -107,9 +107,9 @@ void musb_port_suspend(struct musb *musb, bool do_suspend)
dev_dbg(musb->controller, "Root port suspended, power %02x\n", power);
musb->port1_status |= USB_PORT_STAT_SUSPEND;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_HOST:
- musb->xceiv->state = OTG_STATE_A_SUSPEND;
+ musb->xceiv->otg->state = OTG_STATE_A_SUSPEND;
musb->is_active = otg->host->b_hnp_enable;
if (musb->is_active)
mod_timer(&musb->otg_timer, jiffies
@@ -118,13 +118,13 @@ void musb_port_suspend(struct musb *musb, bool do_suspend)
musb_platform_try_idle(musb, 0);
break;
case OTG_STATE_B_HOST:
- musb->xceiv->state = OTG_STATE_B_WAIT_ACON;
+ musb->xceiv->otg->state = OTG_STATE_B_WAIT_ACON;
musb->is_active = otg->host->b_hnp_enable;
musb_platform_try_idle(musb, 0);
break;
default:
dev_dbg(musb->controller, "bogus rh suspend? %s\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
} else if (power & MUSB_POWER_SUSPENDM) {
power &= ~MUSB_POWER_SUSPENDM;
@@ -145,7 +145,7 @@ void musb_port_reset(struct musb *musb, bool do_reset)
u8 power;
void __iomem *mbase = musb->mregs;
- if (musb->xceiv->state == OTG_STATE_B_IDLE) {
+ if (musb->xceiv->otg->state == OTG_STATE_B_IDLE) {
dev_dbg(musb->controller, "HNP: Returning from HNP; no hub reset from b_idle\n");
musb->port1_status &= ~USB_PORT_STAT_RESET;
return;
@@ -224,24 +224,24 @@ void musb_root_disconnect(struct musb *musb)
usb_hcd_poll_rh_status(musb->hcd);
musb->is_active = 0;
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_SUSPEND:
if (otg->host->b_hnp_enable) {
- musb->xceiv->state = OTG_STATE_A_PERIPHERAL;
+ musb->xceiv->otg->state = OTG_STATE_A_PERIPHERAL;
musb->g.is_a_peripheral = 1;
break;
}
/* FALLTHROUGH */
case OTG_STATE_A_HOST:
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
musb->is_active = 0;
break;
case OTG_STATE_A_WAIT_VFALL:
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
break;
default:
dev_dbg(musb->controller, "host disconnect (%s)\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
}
diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c
index d369bf1f3936..d1b08349f056 100644
--- a/drivers/usb/musb/omap2430.c
+++ b/drivers/usb/musb/omap2430.c
@@ -65,15 +65,15 @@ static void musb_do_idle(unsigned long _musb)
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_BCON:
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE) {
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
} else {
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
MUSB_HST_MODE(musb);
}
break;
@@ -90,15 +90,15 @@ static void musb_do_idle(unsigned long _musb)
musb->port1_status |= USB_PORT_STAT_C_SUSPEND << 16;
usb_hcd_poll_rh_status(musb->hcd);
/* NOTE: it might really be A_WAIT_BCON ... */
- musb->xceiv->state = OTG_STATE_A_HOST;
+ musb->xceiv->otg->state = OTG_STATE_A_HOST;
}
break;
case OTG_STATE_A_HOST:
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (devctl & MUSB_DEVCTL_BDEVICE)
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
else
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
default:
break;
}
@@ -116,9 +116,9 @@ static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout)
/* Never idle if active, or when VBUS timeout is not set as host */
if (musb->is_active || ((musb->a_wait_bcon == 0)
- && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) {
+ && (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON))) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&musb_idle_timer);
last_timer = jiffies;
return;
@@ -135,7 +135,7 @@ static void omap2430_musb_try_idle(struct musb *musb, unsigned long timeout)
last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
(unsigned long)jiffies_to_msecs(timeout - jiffies));
mod_timer(&musb_idle_timer, timeout);
}
@@ -153,7 +153,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (is_on) {
- if (musb->xceiv->state == OTG_STATE_A_IDLE) {
+ if (musb->xceiv->otg->state == OTG_STATE_A_IDLE) {
int loops = 100;
/* start the session */
devctl |= MUSB_DEVCTL_SESSION;
@@ -179,7 +179,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
} else {
musb->is_active = 1;
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
devctl |= MUSB_DEVCTL_SESSION;
MUSB_HST_MODE(musb);
}
@@ -191,7 +191,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
*/
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
devctl &= ~MUSB_DEVCTL_SESSION;
MUSB_DEV_MODE(musb);
@@ -200,7 +200,7 @@ static void omap2430_musb_set_vbus(struct musb *musb, int is_on)
dev_dbg(musb->controller, "VBUS %s, devctl %02x "
/* otg %3x conf %08x prcm %08x */ "\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
musb_readb(musb->mregs, MUSB_DEVCTL));
}
@@ -265,7 +265,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
dev_dbg(dev, "ID GND\n");
otg->default_a = true;
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
musb->xceiv->last_event = USB_EVENT_ID;
if (musb->gadget_driver) {
pm_runtime_get_sync(dev);
@@ -279,7 +279,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue)
dev_dbg(dev, "VBUS Connect\n");
otg->default_a = false;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
musb->xceiv->last_event = USB_EVENT_VBUS;
if (musb->gadget_driver)
pm_runtime_get_sync(dev);
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c
index 159ef4be1ef2..df4513e151a5 100644
--- a/drivers/usb/musb/tusb6010.c
+++ b/drivers/usb/musb/tusb6010.c
@@ -414,13 +414,13 @@ static void musb_do_idle(unsigned long _musb)
spin_lock_irqsave(&musb->lock, flags);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_BCON:
if ((musb->a_wait_bcon != 0)
&& (musb->idle_timeout == 0
|| time_after(jiffies, musb->idle_timeout))) {
dev_dbg(musb->controller, "Nothing connected %s, turning off VBUS\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
}
/* FALLTHROUGH */
case OTG_STATE_A_IDLE:
@@ -473,9 +473,9 @@ static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout)
/* Never idle if active, or when VBUS timeout is not set as host */
if (musb->is_active || ((musb->a_wait_bcon == 0)
- && (musb->xceiv->state == OTG_STATE_A_WAIT_BCON))) {
+ && (musb->xceiv->otg->state == OTG_STATE_A_WAIT_BCON))) {
dev_dbg(musb->controller, "%s active, deleting timer\n",
- usb_otg_state_string(musb->xceiv->state));
+ usb_otg_state_string(musb->xceiv->otg->state));
del_timer(&musb_idle_timer);
last_timer = jiffies;
return;
@@ -492,7 +492,7 @@ static void tusb_musb_try_idle(struct musb *musb, unsigned long timeout)
last_timer = timeout;
dev_dbg(musb->controller, "%s inactive, for idle timer for %lu ms\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
(unsigned long)jiffies_to_msecs(timeout - jiffies));
mod_timer(&musb_idle_timer, timeout);
}
@@ -523,7 +523,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
if (is_on) {
timer = OTG_TIMER_MS(OTG_TIME_A_WAIT_VRISE);
otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
devctl |= MUSB_DEVCTL_SESSION;
conf |= TUSB_DEV_CONF_USB_HOST_MODE;
@@ -536,16 +536,16 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
/* If ID pin is grounded, we want to be a_idle */
otg_stat = musb_readl(tbase, TUSB_DEV_OTG_STAT);
if (!(otg_stat & TUSB_DEV_OTG_STAT_ID_STATUS)) {
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_VRISE:
case OTG_STATE_A_WAIT_BCON:
- musb->xceiv->state = OTG_STATE_A_WAIT_VFALL;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VFALL;
break;
case OTG_STATE_A_WAIT_VFALL:
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
break;
default:
- musb->xceiv->state = OTG_STATE_A_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_A_IDLE;
}
musb->is_active = 0;
otg->default_a = 1;
@@ -553,7 +553,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
} else {
musb->is_active = 0;
otg->default_a = 0;
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
MUSB_DEV_MODE(musb);
}
@@ -568,7 +568,7 @@ static void tusb_musb_set_vbus(struct musb *musb, int is_on)
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
dev_dbg(musb->controller, "VBUS %s, devctl %02x otg %3x conf %08x prcm %08x\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
musb_readb(musb->mregs, MUSB_DEVCTL),
musb_readl(tbase, TUSB_DEV_OTG_STAT),
conf, prcm);
@@ -667,23 +667,23 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
if (otg_stat & TUSB_DEV_OTG_STAT_SESS_END) {
dev_dbg(musb->controller, "Forcing disconnect (no interrupt)\n");
- if (musb->xceiv->state != OTG_STATE_B_IDLE) {
+ if (musb->xceiv->otg->state != OTG_STATE_B_IDLE) {
/* INTR_DISCONNECT can hide... */
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
musb->int_usb |= MUSB_INTR_DISCONNECT;
}
musb->is_active = 0;
}
dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",
- usb_otg_state_string(musb->xceiv->state), otg_stat);
+ usb_otg_state_string(musb->xceiv->otg->state), otg_stat);
idle_timeout = jiffies + (1 * HZ);
schedule_work(&musb->irq_work);
} else /* A-dev state machine */ {
dev_dbg(musb->controller, "vbus change, %s, otg %03x\n",
- usb_otg_state_string(musb->xceiv->state), otg_stat);
+ usb_otg_state_string(musb->xceiv->otg->state), otg_stat);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_IDLE:
dev_dbg(musb->controller, "Got SRP, turning on VBUS\n");
musb_platform_set_vbus(musb, 1);
@@ -730,9 +730,9 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
u8 devctl;
dev_dbg(musb->controller, "%s timer, %03x\n",
- usb_otg_state_string(musb->xceiv->state), otg_stat);
+ usb_otg_state_string(musb->xceiv->otg->state), otg_stat);
- switch (musb->xceiv->state) {
+ switch (musb->xceiv->otg->state) {
case OTG_STATE_A_WAIT_VRISE:
/* VBUS has probably been valid for a while now,
* but may well have bounced out of range a bit
@@ -744,7 +744,7 @@ tusb_otg_ints(struct musb *musb, u32 int_src, void __iomem *tbase)
dev_dbg(musb->controller, "devctl %02x\n", devctl);
break;
}
- musb->xceiv->state = OTG_STATE_A_WAIT_BCON;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_BCON;
musb->is_active = 0;
idle_timeout = jiffies
+ msecs_to_jiffies(musb->a_wait_bcon);
diff --git a/drivers/usb/musb/ux500.c b/drivers/usb/musb/ux500.c
index f202e5088461..71231bcbd178 100644
--- a/drivers/usb/musb/ux500.c
+++ b/drivers/usb/musb/ux500.c
@@ -56,7 +56,7 @@ static void ux500_musb_set_vbus(struct musb *musb, int is_on)
devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
if (is_on) {
- if (musb->xceiv->state == OTG_STATE_A_IDLE) {
+ if (musb->xceiv->otg->state == OTG_STATE_A_IDLE) {
/* start the session */
devctl |= MUSB_DEVCTL_SESSION;
musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
@@ -76,7 +76,7 @@ static void ux500_musb_set_vbus(struct musb *musb, int is_on)
} else {
musb->is_active = 1;
musb->xceiv->otg->default_a = 1;
- musb->xceiv->state = OTG_STATE_A_WAIT_VRISE;
+ musb->xceiv->otg->state = OTG_STATE_A_WAIT_VRISE;
devctl |= MUSB_DEVCTL_SESSION;
MUSB_HST_MODE(musb);
}
@@ -102,7 +102,7 @@ static void ux500_musb_set_vbus(struct musb *musb, int is_on)
mdelay(200);
dev_dbg(musb->controller, "VBUS %s, devctl %02x\n",
- usb_otg_state_string(musb->xceiv->state),
+ usb_otg_state_string(musb->xceiv->otg->state),
musb_readb(musb->mregs, MUSB_DEVCTL));
}
@@ -112,7 +112,7 @@ static int musb_otg_notifications(struct notifier_block *nb,
struct musb *musb = container_of(nb, struct musb, nb);
dev_dbg(musb->controller, "musb_otg_notifications %ld %s\n",
- event, usb_otg_state_string(musb->xceiv->state));
+ event, usb_otg_state_string(musb->xceiv->otg->state));
switch (event) {
case UX500_MUSB_ID:
@@ -127,7 +127,7 @@ static int musb_otg_notifications(struct notifier_block *nb,
if (is_host_active(musb))
ux500_musb_set_vbus(musb, 0);
else
- musb->xceiv->state = OTG_STATE_B_IDLE;
+ musb->xceiv->otg->state = OTG_STATE_B_IDLE;
break;
default:
dev_dbg(musb->controller, "ID float\n");
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 11ab2c45e462..2d5250143ce1 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -446,7 +446,7 @@ static int ab9540_usb_link_status_update(struct ab8500_usb *ab,
if (event != UX500_MUSB_RIDB)
event = UX500_MUSB_NONE;
/* Fallback to default B_IDLE as nothing is connected. */
- ab->phy.state = OTG_STATE_B_IDLE;
+ ab->phy.otg->state = OTG_STATE_B_IDLE;
break;
case USB_LINK_ACA_RID_C_NM_9540:
@@ -584,7 +584,7 @@ static int ab8540_usb_link_status_update(struct ab8500_usb *ab,
* Fallback to default B_IDLE as nothing
* is connected
*/
- ab->phy.state = OTG_STATE_B_IDLE;
+ ab->phy.otg->state = OTG_STATE_B_IDLE;
break;
case USB_LINK_ACA_RID_C_NM_8540:
@@ -693,7 +693,7 @@ static int ab8505_usb_link_status_update(struct ab8500_usb *ab,
* Fallback to default B_IDLE as nothing
* is connected
*/
- ab->phy.state = OTG_STATE_B_IDLE;
+ ab->phy.otg->state = OTG_STATE_B_IDLE;
break;
case USB_LINK_ACA_RID_C_NM_8505:
@@ -776,7 +776,7 @@ static int ab8500_usb_link_status_update(struct ab8500_usb *ab,
if (event != UX500_MUSB_RIDB)
event = UX500_MUSB_NONE;
/* Fallback to default B_IDLE as nothing is connected */
- ab->phy.state = OTG_STATE_B_IDLE;
+ ab->phy.otg->state = OTG_STATE_B_IDLE;
break;
case USB_LINK_ACA_RID_C_NM_8500:
@@ -1380,7 +1380,7 @@ static int ab8500_usb_probe(struct platform_device *pdev)
ab->phy.label = "ab8500";
ab->phy.set_suspend = ab8500_usb_set_suspend;
ab->phy.set_power = ab8500_usb_set_power;
- ab->phy.state = OTG_STATE_UNDEFINED;
+ ab->phy.otg->state = OTG_STATE_UNDEFINED;
otg->phy = &ab->phy;
otg->set_host = ab8500_usb_set_host;
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index 2b0f968d9325..a22f88fb8176 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -623,7 +623,7 @@ static int fsl_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
/* Mini-A cable connected */
struct otg_fsm *fsm = &otg_dev->fsm;
- otg->phy->state = OTG_STATE_UNDEFINED;
+ otg.state = OTG_STATE_UNDEFINED;
fsm->protocol = PROTO_UNDEF;
}
}
@@ -681,7 +681,7 @@ static int fsl_otg_set_power(struct usb_phy *phy, unsigned mA)
{
if (!fsl_otg_dev)
return -ENODEV;
- if (phy->state == OTG_STATE_B_PERIPHERAL)
+ if (phy->otg.state == OTG_STATE_B_PERIPHERAL)
pr_info("FSL OTG: Draw %d mA\n", mA);
return 0;
@@ -714,7 +714,7 @@ static int fsl_otg_start_srp(struct usb_otg *otg)
{
struct fsl_otg *otg_dev;
- if (!otg || otg->phy->state != OTG_STATE_B_IDLE)
+ if (!otg || otg.state != OTG_STATE_B_IDLE)
return -ENODEV;
otg_dev = container_of(otg->phy, struct fsl_otg, phy);
@@ -989,10 +989,10 @@ int usb_otg_start(struct platform_device *pdev)
* Also: record initial state of ID pin
*/
if (fsl_readl(&p_otg->dr_mem_map->otgsc) & OTGSC_STS_USB_ID) {
- p_otg->phy.state = OTG_STATE_UNDEFINED;
+ p_otg->phy->otg.state = OTG_STATE_UNDEFINED;
p_otg->fsm.id = 1;
} else {
- p_otg->phy.state = OTG_STATE_A_IDLE;
+ p_otg->phy->otg.state = OTG_STATE_A_IDLE;
p_otg->fsm.id = 0;
}
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 7594e5069ae5..280a3458ff6b 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -123,7 +123,7 @@ static int nop_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget)
}
otg->gadget = gadget;
- otg->phy->state = OTG_STATE_B_IDLE;
+ otg->state = OTG_STATE_B_IDLE;
return 0;
}
@@ -225,9 +225,9 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop,
nop->phy.dev = nop->dev;
nop->phy.label = "nop-xceiv";
nop->phy.set_suspend = nop_set_suspend;
- nop->phy.state = OTG_STATE_UNDEFINED;
nop->phy.type = type;
+ nop->phy.otg->state = OTG_STATE_UNDEFINED;
nop->phy.otg->phy = &nop->phy;
nop->phy.otg->set_host = nop_set_host;
nop->phy.otg->set_peripheral = nop_set_peripheral;
diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c
index 69462e09d014..a4e88a28199a 100644
--- a/drivers/usb/phy/phy-gpio-vbus-usb.c
+++ b/drivers/usb/phy/phy-gpio-vbus-usb.c
@@ -121,7 +121,7 @@ static void gpio_vbus_work(struct work_struct *work)
if (vbus) {
status = USB_EVENT_VBUS;
- gpio_vbus->phy.state = OTG_STATE_B_PERIPHERAL;
+ gpio_vbus->phy.otg->state = OTG_STATE_B_PERIPHERAL;
gpio_vbus->phy.last_event = status;
usb_gadget_vbus_connect(gpio_vbus->phy.otg->gadget);
@@ -143,7 +143,7 @@ static void gpio_vbus_work(struct work_struct *work)
usb_gadget_vbus_disconnect(gpio_vbus->phy.otg->gadget);
status = USB_EVENT_NONE;
- gpio_vbus->phy.state = OTG_STATE_B_IDLE;
+ gpio_vbus->phy.otg->state = OTG_STATE_B_IDLE;
gpio_vbus->phy.last_event = status;
atomic_notifier_call_chain(&gpio_vbus->phy.notifier,
@@ -196,7 +196,7 @@ static int gpio_vbus_set_peripheral(struct usb_otg *otg,
set_vbus_draw(gpio_vbus, 0);
usb_gadget_vbus_disconnect(otg->gadget);
- otg->phy->state = OTG_STATE_UNDEFINED;
+ otg->state = OTG_STATE_UNDEFINED;
otg->gadget = NULL;
return 0;
@@ -218,7 +218,7 @@ static int gpio_vbus_set_power(struct usb_phy *phy, unsigned mA)
gpio_vbus = container_of(phy, struct gpio_vbus_data, phy);
- if (phy->state == OTG_STATE_B_PERIPHERAL)
+ if (phy->otg->state == OTG_STATE_B_PERIPHERAL)
set_vbus_draw(gpio_vbus, mA);
return 0;
}
@@ -269,8 +269,8 @@ static int gpio_vbus_probe(struct platform_device *pdev)
gpio_vbus->phy.dev = gpio_vbus->dev;
gpio_vbus->phy.set_power = gpio_vbus_set_power;
gpio_vbus->phy.set_suspend = gpio_vbus_set_suspend;
- gpio_vbus->phy.state = OTG_STATE_UNDEFINED;
+ gpio_vbus->phy.otg->state = OTG_STATE_UNDEFINED;
gpio_vbus->phy.otg->phy = &gpio_vbus->phy;
gpio_vbus->phy.otg->set_peripheral = gpio_vbus_set_peripheral;
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index c929370cdaa6..4394397b1370 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -721,11 +721,11 @@ static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
}
if (!host) {
- if (otg->phy->state == OTG_STATE_A_HOST) {
+ if (otg->state == OTG_STATE_A_HOST) {
pm_runtime_get_sync(otg->phy->dev);
msm_otg_start_host(otg->phy, 0);
otg->host = NULL;
- otg->phy->state = OTG_STATE_UNDEFINED;
+ otg->state = OTG_STATE_UNDEFINED;
schedule_work(&motg->sm_work);
} else {
otg->host = NULL;
@@ -794,11 +794,11 @@ static int msm_otg_set_peripheral(struct usb_otg *otg,
}
if (!gadget) {
- if (otg->phy->state == OTG_STATE_B_PERIPHERAL) {
+ if (otg->state == OTG_STATE_B_PERIPHERAL) {
pm_runtime_get_sync(otg->phy->dev);
msm_otg_start_peripheral(otg->phy, 0);
otg->gadget = NULL;
- otg->phy->state = OTG_STATE_UNDEFINED;
+ otg->state = OTG_STATE_UNDEFINED;
schedule_work(&motg->sm_work);
} else {
otg->gadget = NULL;
@@ -1170,12 +1170,12 @@ static void msm_otg_sm_work(struct work_struct *w)
struct msm_otg *motg = container_of(w, struct msm_otg, sm_work);
struct usb_otg *otg = motg->phy.otg;
- switch (otg->phy->state) {
+ switch (otg->state) {
case OTG_STATE_UNDEFINED:
dev_dbg(otg->phy->dev, "OTG_STATE_UNDEFINED state\n");
msm_otg_reset(otg->phy);
msm_otg_init_sm(motg);
- otg->phy->state = OTG_STATE_B_IDLE;
+ otg->state = OTG_STATE_B_IDLE;
/* FALL THROUGH */
case OTG_STATE_B_IDLE:
dev_dbg(otg->phy->dev, "OTG_STATE_B_IDLE state\n");
@@ -1183,7 +1183,7 @@ static void msm_otg_sm_work(struct work_struct *w)
/* disable BSV bit */
writel(readl(USB_OTGSC) & ~OTGSC_BSVIE, USB_OTGSC);
msm_otg_start_host(otg->phy, 1);
- otg->phy->state = OTG_STATE_A_HOST;
+ otg->state = OTG_STATE_A_HOST;
} else if (test_bit(B_SESS_VLD, &motg->inputs)) {
switch (motg->chg_state) {
case USB_CHG_STATE_UNDEFINED:
@@ -1199,13 +1199,13 @@ static void msm_otg_sm_work(struct work_struct *w)
msm_otg_notify_charger(motg,
IDEV_CHG_MAX);
msm_otg_start_peripheral(otg->phy, 1);
- otg->phy->state
+ otg->state
= OTG_STATE_B_PERIPHERAL;
break;
case USB_SDP_CHARGER:
msm_otg_notify_charger(motg, IUNIT);
msm_otg_start_peripheral(otg->phy, 1);
- otg->phy->state
+ otg->state
= OTG_STATE_B_PERIPHERAL;
break;
default:
@@ -1230,7 +1230,7 @@ static void msm_otg_sm_work(struct work_struct *w)
motg->chg_type = USB_INVALID_CHARGER;
}
- if (otg->phy->state == OTG_STATE_B_IDLE)
+ if (otg->state == OTG_STATE_B_IDLE)
pm_runtime_put_sync(otg->phy->dev);
break;
case OTG_STATE_B_PERIPHERAL:
@@ -1241,7 +1241,7 @@ static void msm_otg_sm_work(struct work_struct *w)
msm_otg_start_peripheral(otg->phy, 0);
motg->chg_state = USB_CHG_STATE_UNDEFINED;
motg->chg_type = USB_INVALID_CHARGER;
- otg->phy->state = OTG_STATE_B_IDLE;
+ otg->state = OTG_STATE_B_IDLE;
msm_otg_reset(otg->phy);
schedule_work(w);
}
@@ -1250,7 +1250,7 @@ static void msm_otg_sm_work(struct work_struct *w)
dev_dbg(otg->phy->dev, "OTG_STATE_A_HOST state\n");
if (test_bit(ID, &motg->inputs)) {
msm_otg_start_host(otg->phy, 0);
- otg->phy->state = OTG_STATE_B_IDLE;
+ otg->state = OTG_STATE_B_IDLE;
msm_otg_reset(otg->phy);
schedule_work(w);
}
@@ -1303,7 +1303,7 @@ static int msm_otg_mode_show(struct seq_file *s, void *unused)
struct msm_otg *motg = s->private;
struct usb_otg *otg = motg->phy.otg;
- switch (otg->phy->state) {
+ switch (otg->state) {
case OTG_STATE_A_HOST:
seq_puts(s, "host\n");
break;
@@ -1353,7 +1353,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
switch (req_mode) {
case USB_DR_MODE_UNKNOWN:
- switch (otg->phy->state) {
+ switch (otg->state) {
case OTG_STATE_A_HOST:
case OTG_STATE_B_PERIPHERAL:
set_bit(ID, &motg->inputs);
@@ -1364,7 +1364,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
}
break;
case USB_DR_MODE_PERIPHERAL:
- switch (otg->phy->state) {
+ switch (otg->state) {
case OTG_STATE_B_IDLE:
case OTG_STATE_A_HOST:
set_bit(ID, &motg->inputs);
@@ -1375,7 +1375,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
}
break;
case USB_DR_MODE_HOST:
- switch (otg->phy->state) {
+ switch (otg->state) {
case OTG_STATE_B_IDLE:
case OTG_STATE_B_PERIPHERAL:
clear_bit(ID, &motg->inputs);
@@ -1772,7 +1772,7 @@ static int msm_otg_runtime_idle(struct device *dev)
* This 1 sec delay also prevents entering into LPM immediately
* after asynchronous interrupt.
*/
- if (otg->phy->state != OTG_STATE_UNDEFINED)
+ if (otg->state != OTG_STATE_UNDEFINED)
pm_schedule_suspend(dev, 1000);
return -EAGAIN;
diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c
index 7d80c54f0ac6..d6b3c473f068 100644
--- a/drivers/usb/phy/phy-mv-usb.c
+++ b/drivers/usb/phy/phy-mv-usb.c
@@ -339,68 +339,68 @@ static void mv_otg_update_state(struct mv_otg *mvotg)
{
struct mv_otg_ctrl *otg_ctrl = &mvotg->otg_ctrl;
struct usb_phy *phy = &mvotg->phy;
- int old_state = phy->state;
+ int old_state = mvotg->phy.otg->state;
switch (old_state) {
case OTG_STATE_UNDEFINED:
- phy->state = OTG_STATE_B_IDLE;
+ mvotg->phy.otg->state = OTG_STATE_B_IDLE;
/* FALL THROUGH */
case OTG_STATE_B_IDLE:
if (otg_ctrl->id == 0)
- phy->state = OTG_STATE_A_IDLE;
+ mvotg->phy.otg->state = OTG_STATE_A_IDLE;
else if (otg_ctrl->b_sess_vld)
- phy->state = OTG_STATE_B_PERIPHERAL;
+ mvotg->phy.otg->state = OTG_STATE_B_PERIPHERAL;
break;
case OTG_STATE_B_PERIPHERAL:
if (!otg_ctrl->b_sess_vld || otg_ctrl->id == 0)
- phy->state = OTG_STATE_B_IDLE;
+ mvotg->phy.otg->state = OTG_STATE_B_IDLE;
break;
case OTG_STATE_A_IDLE:
if (otg_ctrl->id)
- phy->state = OTG_STATE_B_IDLE;
+ mvotg->phy.otg->state = OTG_STATE_B_IDLE;
else if (!(otg_ctrl->a_bus_drop) &&
(otg_ctrl->a_bus_req || otg_ctrl->a_srp_det))
- phy->state = OTG_STATE_A_WAIT_VRISE;
+ mvotg->phy.otg->state = OTG_STATE_A_WAIT_VRISE;
break;
case OTG_STATE_A_WAIT_VRISE:
if (otg_ctrl->a_vbus_vld)
- phy->state = OTG_STATE_A_WAIT_BCON;
+ mvotg->phy.otg->state = OTG_STATE_A_WAIT_BCON;
break;
case OTG_STATE_A_WAIT_BCON:
if (otg_ctrl->id || otg_ctrl->a_bus_drop
|| otg_ctrl->a_wait_bcon_timeout) {
mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
- phy->state = OTG_STATE_A_WAIT_VFALL;
+ mvotg->phy.otg->state = OTG_STATE_A_WAIT_VFALL;
otg_ctrl->a_bus_req = 0;
} else if (!otg_ctrl->a_vbus_vld) {
mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
- phy->state = OTG_STATE_A_VBUS_ERR;
+ mvotg->phy.otg->state = OTG_STATE_A_VBUS_ERR;
} else if (otg_ctrl->b_conn) {
mv_otg_cancel_timer(mvotg, A_WAIT_BCON_TIMER);
mvotg->otg_ctrl.a_wait_bcon_timeout = 0;
- phy->state = OTG_STATE_A_HOST;
+ mvotg->phy.otg->state = OTG_STATE_A_HOST;
}
break;
case OTG_STATE_A_HOST:
if (otg_ctrl->id || !otg_ctrl->b_conn
|| otg_ctrl->a_bus_drop)
- phy->state = OTG_STATE_A_WAIT_BCON;
+ mvotg->phy.otg->state = OTG_STATE_A_WAIT_BCON;
else if (!otg_ctrl->a_vbus_vld)
- phy->state = OTG_STATE_A_VBUS_ERR;
+ mvotg->phy.otg->state = OTG_STATE_A_VBUS_ERR;
break;
case OTG_STATE_A_WAIT_VFALL:
if (otg_ctrl->id
|| (!otg_ctrl->b_conn && otg_ctrl->a_sess_vld)
|| otg_ctrl->a_bus_req)
- phy->state = OTG_STATE_A_IDLE;
+ mvotg->phy.otg->state = OTG_STATE_A_IDLE;
break;
case OTG_STATE_A_VBUS_ERR:
if (otg_ctrl->id || otg_ctrl->a_clr_err
|| otg_ctrl->a_bus_drop) {
otg_ctrl->a_clr_err = 0;
- phy->state = OTG_STATE_A_WAIT_VFALL;
+ mvotg->phy.otg->state = OTG_STATE_A_WAIT_VFALL;
}
break;
default:
@@ -420,8 +420,8 @@ static void mv_otg_work(struct work_struct *work)
run:
/* work queue is single thread, or we need spin_lock to protect */
phy = &mvotg->phy;
- otg = phy->otg;
- old_state = phy->state;
+ otg = mvotg->phy.otg;
+ old_state = otg->state;
if (!mvotg->active)
return;
@@ -429,12 +429,12 @@ run:
mv_otg_update_inputs(mvotg);
mv_otg_update_state(mvotg);
- if (old_state != phy->state) {
+ if (old_state != mvotg->phy.otg->state) {
dev_info(&mvotg->pdev->dev, "change from state %s to %s\n",
state_string[old_state],
- state_string[phy->state]);
+ state_string[mvotg->phy.otg->state]);
- switch (phy->state) {
+ switch (mvotg->phy.otg->state) {
case OTG_STATE_B_IDLE:
otg->default_a = 0;
if (old_state == OTG_STATE_B_PERIPHERAL)
@@ -545,8 +545,8 @@ set_a_bus_req(struct device *dev, struct device_attribute *attr,
return -1;
/* We will use this interface to change to A device */
- if (mvotg->phy.state != OTG_STATE_B_IDLE
- && mvotg->phy.state != OTG_STATE_A_IDLE)
+ if (mvotg->phy.otg->state != OTG_STATE_B_IDLE
+ && mvotg->phy.otg->state != OTG_STATE_A_IDLE)
return -1;
/* The clock may disabled and we need to set irq for ID detected */
@@ -717,9 +717,9 @@ static int mv_otg_probe(struct platform_device *pdev)
mvotg->phy.dev = &pdev->dev;
mvotg->phy.otg = otg;
mvotg->phy.label = driver_name;
- mvotg->phy.state = OTG_STATE_UNDEFINED;
otg->phy = &mvotg->phy;
+ otg->state = OTG_STATE_UNDEFINED;
otg->set_host = mv_otg_set_host;
otg->set_peripheral = mv_otg_set_peripheral;
otg->set_vbus = mv_otg_set_vbus;
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 154332b7c8c0..33d3480c9cda 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -18,6 +18,8 @@ struct usb_otg {
struct usb_bus *host;
struct usb_gadget *gadget;
+ enum usb_otg_state state;
+
/* bind/unbind the host controller */
int (*set_host)(struct usb_otg *otg, struct usb_bus *host);
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index 353053a33f21..ac7d7913694f 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -77,7 +77,6 @@ struct usb_phy {
unsigned int flags;
enum usb_phy_type type;
- enum usb_otg_state state;
enum usb_phy_events last_event;
struct usb_otg *otg;
--
1.9.1
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 2/8] usb: rename phy to usb_phy in OTG
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 1/8] usb: move the OTG state from the USB PHY to the OTG structure Antoine Ténart
@ 2014-07-15 14:39 ` Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 3/8] usb: add support to the generic PHY framework " Antoine Ténart
` (8 subsequent siblings)
10 siblings, 0 replies; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
This patch prepares the introduction of the generic PHY support in the
USB OTG common functions. The USB PHY member of the OTG structure is
renamed to 'usb_phy' and modifications are done in all drivers accessing
it. Renaming this pointer will allow to keep the compatibility for USB
PHY drivers.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
---
drivers/phy/phy-omap-usb2.c | 6 ++--
drivers/usb/chipidea/otg_fsm.c | 2 +-
drivers/usb/phy/phy-ab8500-usb.c | 6 ++--
drivers/usb/phy/phy-fsl-usb.c | 13 ++++----
drivers/usb/phy/phy-generic.c | 2 +-
drivers/usb/phy/phy-gpio-vbus-usb.c | 2 +-
drivers/usb/phy/phy-isp1301-omap.c | 10 +++---
drivers/usb/phy/phy-msm-usb.c | 61 +++++++++++++++++++------------------
drivers/usb/phy/phy-mv-usb.c | 4 +--
drivers/usb/phy/phy-samsung-usb2.c | 2 +-
drivers/usb/phy/phy-tahvo.c | 8 +++--
drivers/usb/phy/phy-ulpi.c | 6 ++--
include/linux/usb/otg.h | 2 +-
13 files changed, 65 insertions(+), 59 deletions(-)
diff --git a/drivers/phy/phy-omap-usb2.c b/drivers/phy/phy-omap-usb2.c
index 32a703ce7a85..0a78fbbdf764 100644
--- a/drivers/phy/phy-omap-usb2.c
+++ b/drivers/phy/phy-omap-usb2.c
@@ -60,7 +60,7 @@ EXPORT_SYMBOL_GPL(omap_usb2_set_comparator);
static int omap_usb_set_vbus(struct usb_otg *otg, bool enabled)
{
- struct omap_usb *phy = phy_to_omapusb(otg->phy);
+ struct omap_usb *phy = phy_to_omapusb(otg->usb_phy);
if (!phy->comparator)
return -ENODEV;
@@ -70,7 +70,7 @@ static int omap_usb_set_vbus(struct usb_otg *otg, bool enabled)
static int omap_usb_start_srp(struct usb_otg *otg)
{
- struct omap_usb *phy = phy_to_omapusb(otg->phy);
+ struct omap_usb *phy = phy_to_omapusb(otg->usb_phy);
if (!phy->comparator)
return -ENODEV;
@@ -255,7 +255,7 @@ static int omap_usb2_probe(struct platform_device *pdev)
otg->set_vbus = omap_usb_set_vbus;
if (phy_data->flags & OMAP_USB2_HAS_START_SRP)
otg->start_srp = omap_usb_start_srp;
- otg->phy = &phy->phy;
+ otg->usb_phy = &phy->phy;
platform_set_drvdata(pdev, phy);
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 8cb2508a6b71..d8490e758a74 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -788,7 +788,7 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
return -ENOMEM;
}
- otg->phy = ci->transceiver;
+ otg->usb_phy = ci->transceiver;
otg->gadget = &ci->gadget;
ci->fsm.otg = otg;
ci->transceiver->otg = ci->fsm.otg;
diff --git a/drivers/usb/phy/phy-ab8500-usb.c b/drivers/usb/phy/phy-ab8500-usb.c
index 2d5250143ce1..3a802fa7dae2 100644
--- a/drivers/usb/phy/phy-ab8500-usb.c
+++ b/drivers/usb/phy/phy-ab8500-usb.c
@@ -1056,7 +1056,7 @@ static int ab8500_usb_set_peripheral(struct usb_otg *otg,
if (!otg)
return -ENODEV;
- ab = phy_to_ab(otg->phy);
+ ab = phy_to_ab(otg->usb_phy);
ab->phy.otg->gadget = gadget;
@@ -1080,7 +1080,7 @@ static int ab8500_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
if (!otg)
return -ENODEV;
- ab = phy_to_ab(otg->phy);
+ ab = phy_to_ab(otg->usb_phy);
ab->phy.otg->host = host;
@@ -1382,7 +1382,7 @@ static int ab8500_usb_probe(struct platform_device *pdev)
ab->phy.set_power = ab8500_usb_set_power;
ab->phy.otg->state = OTG_STATE_UNDEFINED;
- otg->phy = &ab->phy;
+ otg->usb_phy = &ab->phy;
otg->set_host = ab8500_usb_set_host;
otg->set_peripheral = ab8500_usb_set_peripheral;
diff --git a/drivers/usb/phy/phy-fsl-usb.c b/drivers/usb/phy/phy-fsl-usb.c
index a22f88fb8176..b4cc341094ac 100644
--- a/drivers/usb/phy/phy-fsl-usb.c
+++ b/drivers/usb/phy/phy-fsl-usb.c
@@ -499,7 +499,8 @@ int fsl_otg_start_host(struct otg_fsm *fsm, int on)
{
struct usb_otg *otg = fsm->otg;
struct device *dev;
- struct fsl_otg *otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+ struct fsl_otg *otg_dev =
+ container_of(otg->usb_phy, struct fsl_otg, phy);
u32 retval = 0;
if (!otg->host)
@@ -594,7 +595,7 @@ static int fsl_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
if (!otg)
return -ENODEV;
- otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+ otg_dev = container_of(otg->usb_phy, struct fsl_otg, phy);
if (otg_dev != fsl_otg_dev)
return -ENODEV;
@@ -644,7 +645,7 @@ static int fsl_otg_set_peripheral(struct usb_otg *otg,
if (!otg)
return -ENODEV;
- otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+ otg_dev = container_of(otg->usb_phy, struct fsl_otg, phy);
VDBG("otg_dev 0x%x\n", (int)otg_dev);
VDBG("fsl_otg_dev 0x%x\n", (int)fsl_otg_dev);
if (otg_dev != fsl_otg_dev)
@@ -717,7 +718,7 @@ static int fsl_otg_start_srp(struct usb_otg *otg)
if (!otg || otg.state != OTG_STATE_B_IDLE)
return -ENODEV;
- otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+ otg_dev = container_of(otg->usb_phy, struct fsl_otg, phy);
if (otg_dev != fsl_otg_dev)
return -ENODEV;
@@ -735,7 +736,7 @@ static int fsl_otg_start_hnp(struct usb_otg *otg)
if (!otg)
return -ENODEV;
- otg_dev = container_of(otg->phy, struct fsl_otg, phy);
+ otg_dev = container_of(otg->usb_phy, struct fsl_otg, phy);
if (otg_dev != fsl_otg_dev)
return -ENODEV;
@@ -857,7 +858,7 @@ static int fsl_otg_conf(struct platform_device *pdev)
fsl_otg_tc->phy.dev = &pdev->dev;
fsl_otg_tc->phy.set_power = fsl_otg_set_power;
- fsl_otg_tc->phy.otg->phy = &fsl_otg_tc->phy;
+ fsl_otg_tc->phy.otg->usb_phy = &fsl_otg_tc->phy;
fsl_otg_tc->phy.otg->set_host = fsl_otg_set_host;
fsl_otg_tc->phy.otg->set_peripheral = fsl_otg_set_peripheral;
fsl_otg_tc->phy.otg->start_hnp = fsl_otg_start_hnp;
diff --git a/drivers/usb/phy/phy-generic.c b/drivers/usb/phy/phy-generic.c
index 280a3458ff6b..0c01bd12cabc 100644
--- a/drivers/usb/phy/phy-generic.c
+++ b/drivers/usb/phy/phy-generic.c
@@ -228,7 +228,7 @@ int usb_phy_gen_create_phy(struct device *dev, struct usb_phy_generic *nop,
nop->phy.type = type;
nop->phy.otg->state = OTG_STATE_UNDEFINED;
- nop->phy.otg->phy = &nop->phy;
+ nop->phy.otg->usb_phy = &nop->phy;
nop->phy.otg->set_host = nop_set_host;
nop->phy.otg->set_peripheral = nop_set_peripheral;
diff --git a/drivers/usb/phy/phy-gpio-vbus-usb.c b/drivers/usb/phy/phy-gpio-vbus-usb.c
index a4e88a28199a..0ca42bb2e661 100644
--- a/drivers/usb/phy/phy-gpio-vbus-usb.c
+++ b/drivers/usb/phy/phy-gpio-vbus-usb.c
@@ -271,7 +271,7 @@ static int gpio_vbus_probe(struct platform_device *pdev)
gpio_vbus->phy.set_suspend = gpio_vbus_set_suspend;
gpio_vbus->phy.otg->state = OTG_STATE_UNDEFINED;
- gpio_vbus->phy.otg->phy = &gpio_vbus->phy;
+ gpio_vbus->phy.otg->usb_phy = &gpio_vbus->phy;
gpio_vbus->phy.otg->set_peripheral = gpio_vbus_set_peripheral;
err = gpio_request(gpio, "vbus_detect");
diff --git a/drivers/usb/phy/phy-isp1301-omap.c b/drivers/usb/phy/phy-isp1301-omap.c
index 69e49be8866b..cf0bd694ed1c 100644
--- a/drivers/usb/phy/phy-isp1301-omap.c
+++ b/drivers/usb/phy/phy-isp1301-omap.c
@@ -1275,7 +1275,7 @@ static int isp1301_otg_enable(struct isp1301 *isp)
static int
isp1301_set_host(struct usb_otg *otg, struct usb_bus *host)
{
- struct isp1301 *isp = container_of(otg->phy, struct isp1301, phy);
+ struct isp1301 *isp = container_of(otg->usb_phy, struct isp1301, phy);
if (isp != the_transceiver)
return -ENODEV;
@@ -1331,7 +1331,7 @@ isp1301_set_host(struct usb_otg *otg, struct usb_bus *host)
static int
isp1301_set_peripheral(struct usb_otg *otg, struct usb_gadget *gadget)
{
- struct isp1301 *isp = container_of(otg->phy, struct isp1301, phy);
+ struct isp1301 *isp = container_of(otg->usb_phy, struct isp1301, phy);
if (isp != the_transceiver)
return -ENODEV;
@@ -1411,7 +1411,7 @@ isp1301_set_power(struct usb_phy *dev, unsigned mA)
static int
isp1301_start_srp(struct usb_otg *otg)
{
- struct isp1301 *isp = container_of(otg->phy, struct isp1301, phy);
+ struct isp1301 *isp = container_of(otg->usb_phy, struct isp1301, phy);
u32 otg_ctrl;
if (isp != the_transceiver || isp->phy.state != OTG_STATE_B_IDLE)
@@ -1438,7 +1438,7 @@ static int
isp1301_start_hnp(struct usb_otg *otg)
{
#ifdef CONFIG_USB_OTG
- struct isp1301 *isp = container_of(otg->phy, struct isp1301, phy);
+ struct isp1301 *isp = container_of(otg->usb_phy, struct isp1301, phy);
u32 l;
if (isp != the_transceiver)
@@ -1583,7 +1583,7 @@ isp1301_probe(struct i2c_client *i2c, const struct i2c_device_id *id)
isp->phy.label = DRIVER_NAME;
isp->phy.set_power = isp1301_set_power,
- isp->phy.otg->phy = &isp->phy;
+ isp->phy.otg->usb_phy = &isp->phy;
isp->phy.otg->set_host = isp1301_set_host,
isp->phy.otg->set_peripheral = isp1301_set_peripheral,
isp->phy.otg->start_srp = isp1301_start_srp,
diff --git a/drivers/usb/phy/phy-msm-usb.c b/drivers/usb/phy/phy-msm-usb.c
index 4394397b1370..999e2c948baf 100644
--- a/drivers/usb/phy/phy-msm-usb.c
+++ b/drivers/usb/phy/phy-msm-usb.c
@@ -708,7 +708,7 @@ static void msm_otg_start_host(struct usb_phy *phy, int on)
static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
{
- struct msm_otg *motg = container_of(otg->phy, struct msm_otg, phy);
+ struct msm_otg *motg = container_of(otg->usb_phy, struct msm_otg, phy);
struct usb_hcd *hcd;
/*
@@ -716,14 +716,14 @@ static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
* only peripheral configuration.
*/
if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL) {
- dev_info(otg->phy->dev, "Host mode is not supported\n");
+ dev_info(otg->usb_phy->dev, "Host mode is not supported\n");
return -ENODEV;
}
if (!host) {
if (otg->state == OTG_STATE_A_HOST) {
- pm_runtime_get_sync(otg->phy->dev);
- msm_otg_start_host(otg->phy, 0);
+ pm_runtime_get_sync(otg->usb_phy->dev);
+ msm_otg_start_host(otg->usb_phy, 0);
otg->host = NULL;
otg->state = OTG_STATE_UNDEFINED;
schedule_work(&motg->sm_work);
@@ -738,14 +738,14 @@ static int msm_otg_set_host(struct usb_otg *otg, struct usb_bus *host)
hcd->power_budget = motg->pdata->power_budget;
otg->host = host;
- dev_dbg(otg->phy->dev, "host driver registered w/ tranceiver\n");
+ dev_dbg(otg->usb_phy->dev, "host driver registered w/ tranceiver\n");
/*
* Kick the state machine work, if peripheral is not supported
* or peripheral is already registered with us.
*/
if (motg->pdata->mode == USB_DR_MODE_HOST || otg->gadget) {
- pm_runtime_get_sync(otg->phy->dev);
+ pm_runtime_get_sync(otg->usb_phy->dev);
schedule_work(&motg->sm_work);
}
@@ -782,21 +782,21 @@ static void msm_otg_start_peripheral(struct usb_phy *phy, int on)
static int msm_otg_set_peripheral(struct usb_otg *otg,
struct usb_gadget *gadget)
{
- struct msm_otg *motg = container_of(otg->phy, struct msm_otg, phy);
+ struct msm_otg *motg = container_of(otg->usb_phy, struct msm_otg, phy);
/*
* Fail peripheral registration if this board can support
* only host configuration.
*/
if (motg->pdata->mode == USB_DR_MODE_HOST) {
- dev_info(otg->phy->dev, "Peripheral mode is not supported\n");
+ dev_info(otg->usb_phy->dev, "Peripheral mode is not supported\n");
return -ENODEV;
}
if (!gadget) {
if (otg->state == OTG_STATE_B_PERIPHERAL) {
- pm_runtime_get_sync(otg->phy->dev);
- msm_otg_start_peripheral(otg->phy, 0);
+ pm_runtime_get_sync(otg->usb_phy->dev);
+ msm_otg_start_peripheral(otg->usb_phy, 0);
otg->gadget = NULL;
otg->state = OTG_STATE_UNDEFINED;
schedule_work(&motg->sm_work);
@@ -807,14 +807,15 @@ static int msm_otg_set_peripheral(struct usb_otg *otg,
return 0;
}
otg->gadget = gadget;
- dev_dbg(otg->phy->dev, "peripheral driver registered w/ tranceiver\n");
+ dev_dbg(otg->usb_phy->dev,
+ "peripheral driver registered w/ tranceiver\n");
/*
* Kick the state machine work, if host is not supported
* or host is already registered with us.
*/
if (motg->pdata->mode == USB_DR_MODE_PERIPHERAL || otg->host) {
- pm_runtime_get_sync(otg->phy->dev);
+ pm_runtime_get_sync(otg->usb_phy->dev);
schedule_work(&motg->sm_work);
}
@@ -1172,17 +1173,17 @@ static void msm_otg_sm_work(struct work_struct *w)
switch (otg->state) {
case OTG_STATE_UNDEFINED:
- dev_dbg(otg->phy->dev, "OTG_STATE_UNDEFINED state\n");
- msm_otg_reset(otg->phy);
+ dev_dbg(otg->usb_phy->dev, "OTG_STATE_UNDEFINED state\n");
+ msm_otg_reset(otg->usb_phy);
msm_otg_init_sm(motg);
otg->state = OTG_STATE_B_IDLE;
/* FALL THROUGH */
case OTG_STATE_B_IDLE:
- dev_dbg(otg->phy->dev, "OTG_STATE_B_IDLE state\n");
+ dev_dbg(otg->usb_phy->dev, "OTG_STATE_B_IDLE state\n");
if (!test_bit(ID, &motg->inputs) && otg->host) {
/* disable BSV bit */
writel(readl(USB_OTGSC) & ~OTGSC_BSVIE, USB_OTGSC);
- msm_otg_start_host(otg->phy, 1);
+ msm_otg_start_host(otg->usb_phy, 1);
otg->state = OTG_STATE_A_HOST;
} else if (test_bit(B_SESS_VLD, &motg->inputs)) {
switch (motg->chg_state) {
@@ -1198,13 +1199,15 @@ static void msm_otg_sm_work(struct work_struct *w)
case USB_CDP_CHARGER:
msm_otg_notify_charger(motg,
IDEV_CHG_MAX);
- msm_otg_start_peripheral(otg->phy, 1);
+ msm_otg_start_peripheral(otg->usb_phy,
+ 1);
otg->state
= OTG_STATE_B_PERIPHERAL;
break;
case USB_SDP_CHARGER:
msm_otg_notify_charger(motg, IUNIT);
- msm_otg_start_peripheral(otg->phy, 1);
+ msm_otg_start_peripheral(otg->usb_phy,
+ 1);
otg->state
= OTG_STATE_B_PERIPHERAL;
break;
@@ -1222,8 +1225,8 @@ static void msm_otg_sm_work(struct work_struct *w)
* is incremented in charger detection work.
*/
if (cancel_delayed_work_sync(&motg->chg_work)) {
- pm_runtime_put_sync(otg->phy->dev);
- msm_otg_reset(otg->phy);
+ pm_runtime_put_sync(otg->usb_phy->dev);
+ msm_otg_reset(otg->usb_phy);
}
msm_otg_notify_charger(motg, 0);
motg->chg_state = USB_CHG_STATE_UNDEFINED;
@@ -1231,27 +1234,27 @@ static void msm_otg_sm_work(struct work_struct *w)
}
if (otg->state == OTG_STATE_B_IDLE)
- pm_runtime_put_sync(otg->phy->dev);
+ pm_runtime_put_sync(otg->usb_phy->dev);
break;
case OTG_STATE_B_PERIPHERAL:
- dev_dbg(otg->phy->dev, "OTG_STATE_B_PERIPHERAL state\n");
+ dev_dbg(otg->usb_phy->dev, "OTG_STATE_B_PERIPHERAL state\n");
if (!test_bit(B_SESS_VLD, &motg->inputs) ||
!test_bit(ID, &motg->inputs)) {
msm_otg_notify_charger(motg, 0);
- msm_otg_start_peripheral(otg->phy, 0);
+ msm_otg_start_peripheral(otg->usb_phy, 0);
motg->chg_state = USB_CHG_STATE_UNDEFINED;
motg->chg_type = USB_INVALID_CHARGER;
otg->state = OTG_STATE_B_IDLE;
- msm_otg_reset(otg->phy);
+ msm_otg_reset(otg->usb_phy);
schedule_work(w);
}
break;
case OTG_STATE_A_HOST:
- dev_dbg(otg->phy->dev, "OTG_STATE_A_HOST state\n");
+ dev_dbg(otg->usb_phy->dev, "OTG_STATE_A_HOST state\n");
if (test_bit(ID, &motg->inputs)) {
- msm_otg_start_host(otg->phy, 0);
+ msm_otg_start_host(otg->usb_phy, 0);
otg->state = OTG_STATE_B_IDLE;
- msm_otg_reset(otg->phy);
+ msm_otg_reset(otg->usb_phy);
schedule_work(w);
}
break;
@@ -1388,7 +1391,7 @@ static ssize_t msm_otg_mode_write(struct file *file, const char __user *ubuf,
goto out;
}
- pm_runtime_get_sync(otg->phy->dev);
+ pm_runtime_get_sync(otg->usb_phy->dev);
schedule_work(&motg->sm_work);
out:
return status;
@@ -1671,7 +1674,7 @@ static int msm_otg_probe(struct platform_device *pdev)
phy->io_ops = &msm_otg_io_ops;
- phy->otg->phy = &motg->phy;
+ phy->otg->usb_phy = &motg->phy;
phy->otg->set_host = msm_otg_set_host;
phy->otg->set_peripheral = msm_otg_set_peripheral;
diff --git a/drivers/usb/phy/phy-mv-usb.c b/drivers/usb/phy/phy-mv-usb.c
index d6b3c473f068..d948275d55e5 100644
--- a/drivers/usb/phy/phy-mv-usb.c
+++ b/drivers/usb/phy/phy-mv-usb.c
@@ -56,7 +56,7 @@ static char *state_string[] = {
static int mv_otg_set_vbus(struct usb_otg *otg, bool on)
{
- struct mv_otg *mvotg = container_of(otg->phy, struct mv_otg, phy);
+ struct mv_otg *mvotg = container_of(otg->usb_phy, struct mv_otg, phy);
if (mvotg->pdata->set_vbus == NULL)
return -ENODEV;
@@ -718,8 +718,8 @@ static int mv_otg_probe(struct platform_device *pdev)
mvotg->phy.otg = otg;
mvotg->phy.label = driver_name;
- otg->phy = &mvotg->phy;
otg->state = OTG_STATE_UNDEFINED;
+ otg->usb_phy = &mvotg->phy;
otg->set_host = mv_otg_set_host;
otg->set_peripheral = mv_otg_set_peripheral;
otg->set_vbus = mv_otg_set_vbus;
diff --git a/drivers/usb/phy/phy-samsung-usb2.c b/drivers/usb/phy/phy-samsung-usb2.c
index b3ba86627b72..2a6d8cfa8839 100644
--- a/drivers/usb/phy/phy-samsung-usb2.c
+++ b/drivers/usb/phy/phy-samsung-usb2.c
@@ -420,7 +420,7 @@ static int samsung_usb2phy_probe(struct platform_device *pdev)
return -EINVAL;
sphy->phy.otg = otg;
- sphy->phy.otg->phy = &sphy->phy;
+ sphy->phy.otg->usb_phy = &sphy->phy;
sphy->phy.otg->set_host = samsung_usbphy_set_host;
spin_lock_init(&sphy->lock);
diff --git a/drivers/usb/phy/phy-tahvo.c b/drivers/usb/phy/phy-tahvo.c
index cc61ee44b911..402e6af29c65 100644
--- a/drivers/usb/phy/phy-tahvo.c
+++ b/drivers/usb/phy/phy-tahvo.c
@@ -196,7 +196,8 @@ static int tahvo_usb_set_suspend(struct usb_phy *dev, int suspend)
static int tahvo_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
{
- struct tahvo_usb *tu = container_of(otg->phy, struct tahvo_usb, phy);
+ struct tahvo_usb *tu = container_of(otg->usb_phy, struct tahvo_usb,
+ phy);
dev_dbg(&tu->pt_dev->dev, "%s %p\n", __func__, host);
@@ -225,7 +226,8 @@ static int tahvo_usb_set_host(struct usb_otg *otg, struct usb_bus *host)
static int tahvo_usb_set_peripheral(struct usb_otg *otg,
struct usb_gadget *gadget)
{
- struct tahvo_usb *tu = container_of(otg->phy, struct tahvo_usb, phy);
+ struct tahvo_usb *tu = container_of(otg->usb_phy, struct tahvo_usb,
+ phy);
dev_dbg(&tu->pt_dev->dev, "%s %p\n", __func__, gadget);
@@ -383,7 +385,7 @@ static int tahvo_usb_probe(struct platform_device *pdev)
tu->phy.label = DRIVER_NAME;
tu->phy.set_suspend = tahvo_usb_set_suspend;
- tu->phy.otg->phy = &tu->phy;
+ tu->phy.otg->usb_phy = &tu->phy;
tu->phy.otg->set_host = tahvo_usb_set_host;
tu->phy.otg->set_peripheral = tahvo_usb_set_peripheral;
diff --git a/drivers/usb/phy/phy-ulpi.c b/drivers/usb/phy/phy-ulpi.c
index 4e3877c329f2..f48a7a21e3c2 100644
--- a/drivers/usb/phy/phy-ulpi.c
+++ b/drivers/usb/phy/phy-ulpi.c
@@ -211,7 +211,7 @@ static int ulpi_init(struct usb_phy *phy)
static int ulpi_set_host(struct usb_otg *otg, struct usb_bus *host)
{
- struct usb_phy *phy = otg->phy;
+ struct usb_phy *phy = otg->usb_phy;
unsigned int flags = usb_phy_io_read(phy, ULPI_IFC_CTRL);
if (!host) {
@@ -237,7 +237,7 @@ static int ulpi_set_host(struct usb_otg *otg, struct usb_bus *host)
static int ulpi_set_vbus(struct usb_otg *otg, bool on)
{
- struct usb_phy *phy = otg->phy;
+ struct usb_phy *phy = otg->usb_phy;
unsigned int flags = usb_phy_io_read(phy, ULPI_OTG_CTRL);
flags &= ~(ULPI_OTG_CTRL_DRVVBUS | ULPI_OTG_CTRL_DRVVBUS_EXT);
@@ -276,7 +276,7 @@ otg_ulpi_create(struct usb_phy_io_ops *ops,
phy->otg = otg;
phy->init = ulpi_init;
- otg->phy = phy;
+ otg->usb_phy = phy;
otg->set_host = ulpi_set_host;
otg->set_vbus = ulpi_set_vbus;
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 33d3480c9cda..978fbbb0e266 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -14,7 +14,7 @@
struct usb_otg {
u8 default_a;
- struct usb_phy *phy;
+ struct usb_phy *usb_phy;
struct usb_bus *host;
struct usb_gadget *gadget;
--
1.9.1
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 3/8] usb: add support to the generic PHY framework in OTG
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 1/8] usb: move the OTG state from the USB PHY to the OTG structure Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 2/8] usb: rename phy to usb_phy in OTG Antoine Ténart
@ 2014-07-15 14:39 ` Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 4/8] usb: rename phy to usb_phy in HCD Antoine Ténart
` (7 subsequent siblings)
10 siblings, 0 replies; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
This patch adds support of the PHY framework in OTG and keeps the USB
PHY compatibility. Here the only modification is to add PHY member in
the OTG structure, along with the USB PHY one.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
---
include/linux/usb/otg.h | 3 +++
1 file changed, 3 insertions(+)
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 978fbbb0e266..52661c5da690 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -9,11 +9,14 @@
#ifndef __LINUX_USB_OTG_H
#define __LINUX_USB_OTG_H
+#include <linux/phy/phy.h>
#include <linux/usb/phy.h>
struct usb_otg {
u8 default_a;
+ struct phy *phy;
+ /* old usb_phy interface */
struct usb_phy *usb_phy;
struct usb_bus *host;
struct usb_gadget *gadget;
--
1.9.1
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 4/8] usb: rename phy to usb_phy in HCD
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
` (2 preceding siblings ...)
2014-07-15 14:39 ` [PATCH v2 3/8] usb: add support to the generic PHY framework " Antoine Ténart
@ 2014-07-15 14:39 ` Antoine Ténart
2014-07-15 15:55 ` Sergei Shtylyov
2014-07-15 14:39 ` [PATCH v2 5/8] usb: rename gen_phy to phy " Antoine Ténart
` (6 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
The USB PHY member of the HCD structure is renamed to 'usb_phy' and
modifications are done in all drivers accessing it.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
---
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 ++++++++++----------
include/linux/usb/hcd.h | 2 +-
9 files changed, 45 insertions(+), 45 deletions(-)
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index a93d950e9468..fc7541c906a2 100644
--- a/drivers/usb/chipidea/host.c
+++ b/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;
ehci = hcd_to_ehci(hcd);
ehci->caps = ci->hw_bank.cap;
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 28411493dd10..f0bfaad62280 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2632,7 +2632,7 @@ 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)) {
@@ -2645,7 +2645,7 @@ 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;
}
}
@@ -2823,10 +2823,10 @@ err_create_buf:
hcd->gen_phy = NULL;
}
err_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;
}
@@ -2906,10 +2906,10 @@ void usb_remove_hcd(struct usb_hcd *hcd)
phy_put(hcd->gen_phy);
hcd->gen_phy = NULL;
}
- 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);
diff --git a/drivers/usb/core/hub.c b/drivers/usb/core/hub.c
index 21b99b4b4082..cf49c03b74a9 100644
--- a/drivers/usb/core/hub.c
+++ b/drivers/usb/core/hub.c
@@ -4379,8 +4379,8 @@ hub_port_init (struct usb_hub *hub, struct usb_device *udev, int port1,
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
@@ -4534,9 +4534,9 @@ static void hub_port_connect(struct usb_hub *hub, int port1, u16 portstatus,
/* 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);
}
diff --git a/drivers/usb/host/ehci-fsl.c b/drivers/usb/host/ehci-fsl.c
index cf2734b532a7..4bdcd3439d47 100644
--- a/drivers/usb/host/ehci-fsl.c
+++ b/drivers/usb/host/ehci-fsl.c
@@ -136,15 +136,15 @@ static int usb_hcd_fsl_probe(const struct hc_driver *driver,
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 usb_hcd *hcd,
{
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);
diff --git a/drivers/usb/host/ehci-hub.c b/drivers/usb/host/ehci-hub.c
index cc305c71ac3d..619d2e051e8c 100644
--- a/drivers/usb/host/ehci-hub.c
+++ b/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
diff --git a/drivers/usb/host/ehci-msm.c b/drivers/usb/host/ehci-msm.c
index 982c09bebe0f..df474aa2acb6 100644
--- a/drivers/usb/host/ehci-msm.c
+++ b/drivers/usb/host/ehci-msm.c
@@ -124,7 +124,7 @@ static int ehci_msm_probe(struct platform_device *pdev)
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 platform_device *pdev)
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? */
diff --git a/drivers/usb/host/ehci-tegra.c b/drivers/usb/host/ehci-tegra.c
index 6fdcb8ad2296..a134eac561c2 100644
--- a/drivers/usb/host/ehci-tegra.c
+++ b/drivers/usb/host/ehci-tegra.c
@@ -150,7 +150,7 @@ 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);
}
}
@@ -203,7 +203,7 @@ 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);
@@ -398,7 +398,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
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");
@@ -419,7 +419,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
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;
@@ -434,7 +434,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
}
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;
@@ -461,7 +461,7 @@ static int tegra_ehci_probe(struct platform_device *pdev)
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:
@@ -475,9 +475,9 @@ static int tegra_ehci_remove(struct platform_device *pdev)
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);
usb_put_hcd(hcd);
diff --git a/drivers/usb/host/ohci-omap.c b/drivers/usb/host/ohci-omap.c
index 61967405b56d..4629dd7db728 100644
--- a/drivers/usb/host/ohci-omap.c
+++ b/drivers/usb/host/ohci-omap.c
@@ -180,10 +180,10 @@ static void start_hnp(struct ohci_hcd *ohci)
unsigned long flags;
u32 l;
- otg_start_hnp(hcd->phy->otg);
+ otg_start_hnp(hcd->usb_phy->otg);
local_irq_save(flags);
- hcd->phy->otg.state = OTG_STATE_A_SUSPEND;
+ hcd->usb_phy->otg.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_hcd *hcd)
#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, struct platform_device *pdev)
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);
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 2aefbcc83b22..604d2e6e0c1c 100644
--- a/include/linux/usb/hcd.h
+++ b/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;
struct phy *gen_phy;
/* Flags that need to be manipulated atomically because they can
--
1.9.1
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 5/8] usb: rename gen_phy to phy in HCD
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
` (3 preceding siblings ...)
2014-07-15 14:39 ` [PATCH v2 4/8] usb: rename phy to usb_phy in HCD Antoine Ténart
@ 2014-07-15 14:39 ` Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 6/8] usb: allow to supply the PHY in the drivers when using HCD Antoine Ténart
` (5 subsequent siblings)
10 siblings, 0 replies; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
The patch adding support to the generic PHY framework introduced a
'gen_phy' member in the HCD structure. Rename it to 'phy' to have a
consistent USB framework.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
---
drivers/usb/core/hcd.c | 22 +++++++++++-----------
include/linux/usb/hcd.h | 4 +++-
2 files changed, 14 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index f0bfaad62280..228bad89f09b 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2669,7 +2669,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
phy_put(phy);
goto err_phy;
}
- hcd->gen_phy = phy;
+ hcd->phy = phy;
}
}
@@ -2816,11 +2816,11 @@ err_allocate_root_hub:
err_register_bus:
hcd_buffer_destroy(hcd);
err_create_buf:
- if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->gen_phy) {
- phy_power_off(hcd->gen_phy);
- phy_exit(hcd->gen_phy);
- phy_put(hcd->gen_phy);
- hcd->gen_phy = NULL;
+ 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) {
@@ -2900,11 +2900,11 @@ void usb_remove_hcd(struct usb_hcd *hcd)
usb_deregister_bus(&hcd->self);
hcd_buffer_destroy(hcd);
- if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->gen_phy) {
- phy_power_off(hcd->gen_phy);
- phy_exit(hcd->gen_phy);
- phy_put(hcd->gen_phy);
- hcd->gen_phy = NULL;
+ 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);
diff --git a/include/linux/usb/hcd.h b/include/linux/usb/hcd.h
index 604d2e6e0c1c..19b3fbd1f9e1 100644
--- a/include/linux/usb/hcd.h
+++ b/include/linux/usb/hcd.h
@@ -105,9 +105,11 @@ struct usb_hcd {
/*
* OTG and some Host controllers need software interaction with phys;
* other external phys should be software-transparent
+ *
+ * Keep the usb_phy for compatibility reasons, for now
*/
struct usb_phy *usb_phy;
- struct phy *gen_phy;
+ struct phy *phy;
/* Flags that need to be manipulated atomically because they can
* change while the host controller is running. Always use
--
1.9.1
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 6/8] usb: allow to supply the PHY in the drivers when using HCD
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
` (4 preceding siblings ...)
2014-07-15 14:39 ` [PATCH v2 5/8] usb: rename gen_phy to phy " Antoine Ténart
@ 2014-07-15 14:39 ` Antoine Ténart
2014-07-23 10:59 ` Peter Chen
2014-07-15 14:39 ` [PATCH v2 7/8] usb: rename transceiver and phy to usb_phy in ChipIdea Antoine Ténart
` (4 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
This patch modify the generic code handling PHYs to allow them to be
supplied from the drivers. This adds checks to ensure no PHY was already
there when looking for one in the generic code. This also makes sure we
do not modify its state in the generic HCD functions, it it was
provided by the driver.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
---
drivers/usb/core/hcd.c | 7 ++++---
1 file changed, 4 insertions(+), 3 deletions(-)
diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
index 228bad89f09b..ce9ea309ab0f 100644
--- a/drivers/usb/core/hcd.c
+++ b/drivers/usb/core/hcd.c
@@ -2650,7 +2650,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
}
}
- if (IS_ENABLED(CONFIG_GENERIC_PHY)) {
+ if (IS_ENABLED(CONFIG_GENERIC_PHY) && !hcd->phy) {
struct phy *phy = phy_get(hcd->self.controller, "usb");
if (IS_ERR(phy)) {
@@ -2670,6 +2670,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
goto err_phy;
}
hcd->phy = phy;
+ hcd->remove_phy = 1;
}
}
@@ -2816,7 +2817,7 @@ err_allocate_root_hub:
err_register_bus:
hcd_buffer_destroy(hcd);
err_create_buf:
- if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->phy) {
+ if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->remove_phy && hcd->phy) {
phy_power_off(hcd->phy);
phy_exit(hcd->phy);
phy_put(hcd->phy);
@@ -2900,7 +2901,7 @@ 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) {
+ if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->remove_phy && hcd->phy) {
phy_power_off(hcd->phy);
phy_exit(hcd->phy);
phy_put(hcd->phy);
--
1.9.1
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 7/8] usb: rename transceiver and phy to usb_phy in ChipIdea
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
` (5 preceding siblings ...)
2014-07-15 14:39 ` [PATCH v2 6/8] usb: allow to supply the PHY in the drivers when using HCD Antoine Ténart
@ 2014-07-15 14:39 ` Antoine Ténart
2014-07-24 11:12 ` Peter Chen
2014-07-15 14:39 ` [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework " Antoine Ténart
` (3 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
This patch prepares the introduction of the generic PHY support in the
USB ChipIdea common functions. The USB PHY member of the ChipIdea
structure ('transceiver') is renamed to 'usb_phy', the 'phy' member of
the ChipIdea pdata structure is renamed to 'usb_phy' and modifications
are done in all drivers accessing it. Renaming this pointer will allow
to keep the compatibility for USB PHY drivers.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
---
drivers/usb/chipidea/ci.h | 4 ++--
drivers/usb/chipidea/ci_hdrc_imx.c | 2 +-
drivers/usb/chipidea/ci_hdrc_msm.c | 8 ++++----
drivers/usb/chipidea/core.c | 20 ++++++++++----------
drivers/usb/chipidea/debug.c | 2 +-
drivers/usb/chipidea/host.c | 4 ++--
drivers/usb/chipidea/otg_fsm.c | 4 ++--
drivers/usb/chipidea/udc.c | 4 ++--
include/linux/usb/chipidea.h | 2 +-
9 files changed, 25 insertions(+), 25 deletions(-)
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 9563cb56d564..b2caa1772712 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -161,7 +161,7 @@ struct hw_bank {
* @test_mode: the selected test mode
* @platdata: platform specific information supplied by parent device
* @vbus_active: is VBUS active
- * @transceiver: pointer to USB PHY, if any
+ * @usb_phy: pointer to USB PHY, if any
* @hcd: pointer to usb_hcd for ehci host driver
* @debugfs: root dentry for this controller in debugfs
* @id_event: indicates there is an id event, and handled at ci_otg_work
@@ -201,7 +201,7 @@ struct ci_hdrc {
struct ci_hdrc_platform_data *platdata;
int vbus_active;
- struct usb_phy *transceiver;
+ struct usb_phy *usb_phy;
struct usb_hcd *hcd;
struct dentry *debugfs;
bool id_event;
diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
index 2e58f8dfd311..33b982dddac5 100644
--- a/drivers/usb/chipidea/ci_hdrc_imx.c
+++ b/drivers/usb/chipidea/ci_hdrc_imx.c
@@ -136,7 +136,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
goto err_clk;
}
- pdata.phy = data->phy;
+ pdata.usb_phy = data->phy;
if (imx_platform_flag->flags & CI_HDRC_IMX_IMX28_WRITE_FIX)
pdata.flags |= CI_HDRC_IMX28_WRITE_FIX;
diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
index d72b9d2de2c5..94cd7c3e12a3 100644
--- a/drivers/usb/chipidea/ci_hdrc_msm.c
+++ b/drivers/usb/chipidea/ci_hdrc_msm.c
@@ -31,13 +31,13 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
case CI_HDRC_CONTROLLER_STOPPED_EVENT:
dev_dbg(dev, "CI_HDRC_CONTROLLER_STOPPED_EVENT received\n");
/*
- * Put the transceiver in non-driving mode. Otherwise host
+ * Put the phy in non-driving mode. Otherwise host
* may not detect soft-disconnection.
*/
- val = usb_phy_io_read(ci->transceiver, ULPI_FUNC_CTRL);
+ val = usb_phy_io_read(ci->usb_phy, ULPI_FUNC_CTRL);
val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
- usb_phy_io_write(ci->transceiver, val, ULPI_FUNC_CTRL);
+ usb_phy_io_write(ci->usb_phy, val, ULPI_FUNC_CTRL);
break;
default:
dev_dbg(dev, "unknown ci_hdrc event\n");
@@ -71,7 +71,7 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
if (IS_ERR(phy))
return PTR_ERR(phy);
- ci_hdrc_msm_platdata.phy = phy;
+ ci_hdrc_msm_platdata.usb_phy = phy;
plat_ci = ci_hdrc_add_device(&pdev->dev,
pdev->resource, pdev->num_resources,
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index 619d13e29995..a8cd35fd8175 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -306,7 +306,7 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
case USBPHY_INTERFACE_MODE_UTMI:
case USBPHY_INTERFACE_MODE_UTMIW:
case USBPHY_INTERFACE_MODE_HSIC:
- ret = usb_phy_init(ci->transceiver);
+ ret = usb_phy_init(ci->usb_phy);
if (ret)
return ret;
hw_phymode_configure(ci);
@@ -314,12 +314,12 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
case USBPHY_INTERFACE_MODE_ULPI:
case USBPHY_INTERFACE_MODE_SERIAL:
hw_phymode_configure(ci);
- ret = usb_phy_init(ci->transceiver);
+ ret = usb_phy_init(ci->usb_phy);
if (ret)
return ret;
break;
default:
- ret = usb_phy_init(ci->transceiver);
+ ret = usb_phy_init(ci->usb_phy);
}
return ret;
@@ -595,13 +595,13 @@ static int ci_hdrc_probe(struct platform_device *pdev)
return -ENODEV;
}
- if (ci->platdata->phy)
- ci->transceiver = ci->platdata->phy;
+ if (ci->platdata->usb_phy)
+ ci->usb_phy = ci->platdata->usb_phy;
else
- ci->transceiver = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+ ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
- if (IS_ERR(ci->transceiver)) {
- ret = PTR_ERR(ci->transceiver);
+ if (IS_ERR(ci->usb_phy)) {
+ ret = PTR_ERR(ci->usb_phy);
/*
* if -ENXIO is returned, it means PHY layer wasn't
* enabled, so it makes no sense to return -EPROBE_DEFER
@@ -718,7 +718,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
stop:
ci_role_destroy(ci);
deinit_phy:
- usb_phy_shutdown(ci->transceiver);
+ usb_phy_shutdown(ci->usb_phy);
return ret;
}
@@ -731,7 +731,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
free_irq(ci->irq, ci);
ci_role_destroy(ci);
ci_hdrc_enter_lpm(ci, true);
- usb_phy_shutdown(ci->transceiver);
+ usb_phy_shutdown(ci->usb_phy);
kfree(ci->hw_bank.regmap);
return 0;
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index 9a9702773e43..d47cddd38e4a 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -219,7 +219,7 @@ int ci_otg_show(struct seq_file *s, void *unused)
fsm = &ci->fsm;
/* ------ State ----- */
- usb_otg_state_string(ci->transceiver->otg.state));
+ usb_otg_state_string(ci->usb_phy->otg.state));
/* ------ State Machine Variables ----- */
seq_printf(s, "a_bus_drop: %d\n", fsm->a_bus_drop);
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index fc7541c906a2..0b67d78dd953 100644
--- a/drivers/usb/chipidea/host.c
+++ b/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->usb_phy = ci->transceiver;
+ hcd->usb_phy = ci->usb_phy;
ehci = hcd_to_ehci(hcd);
ehci->caps = ci->hw_bank.cap;
@@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
if (ret) {
goto disable_reg;
} else {
- struct usb_otg *otg = ci->transceiver->otg;
+ struct usb_otg *otg = ci->usb_phy->otg;
ci->hcd = hcd;
if (otg) {
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index d8490e758a74..8a64ce87364e 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -788,10 +788,10 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
return -ENOMEM;
}
- otg->usb_phy = ci->transceiver;
+ otg->usb_phy = ci->usb_phy;
otg->gadget = &ci->gadget;
ci->fsm.otg = otg;
- ci->transceiver->otg = ci->fsm.otg;
+ ci->usb_phy->otg = ci->fsm.otg;
ci->fsm.power_up = 1;
ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
ci->fsm.otg->state = OTG_STATE_UNDEFINED;
diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index 9d2b673f90e3..9d3966308942 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1519,8 +1519,8 @@ static int ci_udc_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
{
struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
- if (ci->transceiver)
- return usb_phy_set_power(ci->transceiver, ma);
+ if (ci->usb_phy)
+ return usb_phy_set_power(ci->usb_phy, ma);
return -ENOTSUPP;
}
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index bbe779f640be..57d757a1aa83 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -13,7 +13,7 @@ struct ci_hdrc_platform_data {
/* offset of the capability registers */
uintptr_t capoffset;
unsigned power_budget;
- struct usb_phy *phy;
+ struct usb_phy *usb_phy;
enum usb_phy_interface phy_mode;
unsigned long flags;
#define CI_HDRC_REGS_SHARED BIT(0)
--
1.9.1
^ permalink raw reply related [flat|nested] 25+ messages in thread
* [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework in ChipIdea
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
` (6 preceding siblings ...)
2014-07-15 14:39 ` [PATCH v2 7/8] usb: rename transceiver and phy to usb_phy in ChipIdea Antoine Ténart
@ 2014-07-15 14:39 ` Antoine Ténart
2014-07-24 11:39 ` Peter Chen
2014-07-15 15:58 ` [PATCH v2 0/8] usb: add support for the generic PHY framework Alan Stern
` (2 subsequent siblings)
10 siblings, 1 reply; 25+ messages in thread
From: Antoine Ténart @ 2014-07-15 14:39 UTC (permalink / raw)
To: balbi, gregkh, Peter.Chen, kishon, stern
Cc: Antoine Ténart, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
This patch adds support of the PHY framework for ChipIdea drivers.
Changes are done in both the ChipIdea common code and in the drivers
accessing the PHY. This is done by adding a new PHY member in
ChipIdea's structures and by taking care of it in the code.
Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
---
drivers/usb/chipidea/ci.h | 5 ++-
drivers/usb/chipidea/core.c | 71 ++++++++++++++++++++++++++++++++++--------
drivers/usb/chipidea/debug.c | 4 ++-
drivers/usb/chipidea/host.c | 18 +++++++----
drivers/usb/chipidea/otg_fsm.c | 6 ++--
include/linux/usb/chipidea.h | 2 ++
6 files changed, 83 insertions(+), 23 deletions(-)
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index b2caa1772712..f219588f4ce6 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -161,7 +161,8 @@ struct hw_bank {
* @test_mode: the selected test mode
* @platdata: platform specific information supplied by parent device
* @vbus_active: is VBUS active
- * @usb_phy: pointer to USB PHY, if any
+ * @phy: pointer to PHY, if any
+ * @usb_phy: pointer to USB PHY, if any and if using the USB PHY framework
* @hcd: pointer to usb_hcd for ehci host driver
* @debugfs: root dentry for this controller in debugfs
* @id_event: indicates there is an id event, and handled at ci_otg_work
@@ -201,6 +202,8 @@ struct ci_hdrc {
struct ci_hdrc_platform_data *platdata;
int vbus_active;
+ struct phy *phy;
+ /* old usb_phy interface */
struct usb_phy *usb_phy;
struct usb_hcd *hcd;
struct dentry *debugfs;
diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
index a8cd35fd8175..28bcefcdbd9a 100644
--- a/drivers/usb/chipidea/core.c
+++ b/drivers/usb/chipidea/core.c
@@ -47,6 +47,7 @@
#include <linux/delay.h>
#include <linux/device.h>
#include <linux/dma-mapping.h>
+#include <linux/phy/phy.h>
#include <linux/platform_device.h>
#include <linux/module.h>
#include <linux/idr.h>
@@ -293,6 +294,46 @@ static void hw_phymode_configure(struct ci_hdrc *ci)
}
/**
+ * _ci_usb_phy_init: initialize phy taking in account both phy and usb_phy
+ * interfaces
+ * @ci: the controller
+ *
+ * This function returns an error code if the phy failed to init
+ */
+static int _ci_usb_phy_init(struct ci_hdrc *ci)
+{
+ int ret;
+
+ if (ci->phy) {
+ ret = phy_init(ci->phy);
+ if (ret) {
+ phy_exit(ci->phy);
+ return ret;
+ }
+ ret = phy_power_on(ci->phy);
+ } else {
+ ret = usb_phy_init(ci->usb_phy);
+ }
+
+ return ret;
+}
+
+/**
+ * _ci_usb_phy_exit: deinitialize phy taking in account both phy and usb_phy
+ * interfaces
+ * @ci: the controller
+ */
+static void ci_usb_phy_exit(struct ci_hdrc *ci)
+{
+ if (ci->phy) {
+ phy_power_off(ci->phy);
+ phy_exit(ci->phy);
+ } else {
+ usb_phy_shutdown(ci->usb_phy);
+ }
+}
+
+/**
* ci_usb_phy_init: initialize phy according to different phy type
* @ci: the controller
*
@@ -306,7 +347,7 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
case USBPHY_INTERFACE_MODE_UTMI:
case USBPHY_INTERFACE_MODE_UTMIW:
case USBPHY_INTERFACE_MODE_HSIC:
- ret = usb_phy_init(ci->usb_phy);
+ ret = _ci_usb_phy_init(ci);
if (ret)
return ret;
hw_phymode_configure(ci);
@@ -314,12 +355,12 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
case USBPHY_INTERFACE_MODE_ULPI:
case USBPHY_INTERFACE_MODE_SERIAL:
hw_phymode_configure(ci);
- ret = usb_phy_init(ci->usb_phy);
+ ret = _ci_usb_phy_init(ci);
if (ret)
return ret;
break;
default:
- ret = usb_phy_init(ci->usb_phy);
+ ret = _ci_usb_phy_init(ci);
}
return ret;
@@ -595,23 +636,27 @@ static int ci_hdrc_probe(struct platform_device *pdev)
return -ENODEV;
}
- if (ci->platdata->usb_phy)
+ if (ci->platdata->phy)
+ ci->phy = ci->platdata->phy;
+ else if (ci->platdata->usb_phy)
ci->usb_phy = ci->platdata->usb_phy;
else
- ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+ ci->phy = of_phy_get(dev->of_node, 0);
- if (IS_ERR(ci->usb_phy)) {
- ret = PTR_ERR(ci->usb_phy);
+ if (IS_ERR(ci->phy)) {
/*
* if -ENXIO is returned, it means PHY layer wasn't
* enabled, so it makes no sense to return -EPROBE_DEFER
* in that case, since no PHY driver will ever probe.
*/
- if (ret == -ENXIO)
- return ret;
+ if (PTR_ERR(ci->phy) == -ENXIO)
+ return -ENXIO;
- dev_err(dev, "no usb2 phy configured\n");
- return -EPROBE_DEFER;
+ ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
+ if (IS_ERR(ci->usb_phy)) {
+ dev_err(dev, "no usb2 phy configured\n");
+ return -EPROBE_DEFER;
+ }
}
ret = ci_usb_phy_init(ci);
@@ -718,7 +763,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
stop:
ci_role_destroy(ci);
deinit_phy:
- usb_phy_shutdown(ci->usb_phy);
+ ci_usb_phy_exit(ci);
return ret;
}
@@ -731,7 +776,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
free_irq(ci->irq, ci);
ci_role_destroy(ci);
ci_hdrc_enter_lpm(ci, true);
- usb_phy_shutdown(ci->usb_phy);
+ ci_usb_phy_exit(ci);
kfree(ci->hw_bank.regmap);
return 0;
diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
index d47cddd38e4a..77881a5ce48f 100644
--- a/drivers/usb/chipidea/debug.c
+++ b/drivers/usb/chipidea/debug.c
@@ -219,7 +219,9 @@ int ci_otg_show(struct seq_file *s, void *unused)
fsm = &ci->fsm;
/* ------ State ----- */
- usb_otg_state_string(ci->usb_phy->otg.state));
+ if (ci->usb_phy)
+ seq_printf(s, "OTG state: %s\n\n",
+ usb_otg_state_string(ci->usb_phy->otg->state));
/* ------ State Machine Variables ----- */
seq_printf(s, "a_bus_drop: %d\n", fsm->a_bus_drop);
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index 0b67d78dd953..794349ab66af 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -59,7 +59,10 @@ static int host_start(struct ci_hdrc *ci)
hcd->has_tt = 1;
hcd->power_budget = ci->platdata->power_budget;
- hcd->usb_phy = ci->usb_phy;
+ if (ci->phy)
+ hcd->phy = ci->phy;
+ else
+ hcd->usb_phy = ci->usb_phy;
ehci = hcd_to_ehci(hcd);
ehci->caps = ci->hw_bank.cap;
@@ -85,13 +88,16 @@ static int host_start(struct ci_hdrc *ci)
if (ret) {
goto disable_reg;
} else {
- struct usb_otg *otg = ci->usb_phy->otg;
+ if (ci->usb_phy) {
+ struct usb_otg *otg = ci->usb_phy->otg;
- ci->hcd = hcd;
- if (otg) {
- otg->host = &hcd->self;
- hcd->self.otg_port = 1;
+ if (otg) {
+ otg->host = &hcd->self;
+ hcd->self.otg_port = 1;
+ }
}
+
+ ci->hcd = hcd;
}
if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 8a64ce87364e..2c11f260633c 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -788,10 +788,12 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
return -ENOMEM;
}
- otg->usb_phy = ci->usb_phy;
+ if (ci->phy)
+ otg->phy = ci->phy;
+ else
+ otg->usb_phy = ci->usb_phy;
otg->gadget = &ci->gadget;
ci->fsm.otg = otg;
- ci->usb_phy->otg = ci->fsm.otg;
ci->fsm.power_up = 1;
ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
ci->fsm.otg->state = OTG_STATE_UNDEFINED;
diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
index 57d757a1aa83..a0285623b9c1 100644
--- a/include/linux/usb/chipidea.h
+++ b/include/linux/usb/chipidea.h
@@ -13,6 +13,8 @@ struct ci_hdrc_platform_data {
/* offset of the capability registers */
uintptr_t capoffset;
unsigned power_budget;
+ struct phy *phy;
+ /* old usb_phy interface */
struct usb_phy *usb_phy;
enum usb_phy_interface phy_mode;
unsigned long flags;
--
1.9.1
^ permalink raw reply related [flat|nested] 25+ messages in thread
* Re: [PATCH v2 4/8] usb: rename phy to usb_phy in HCD
2014-07-15 14:39 ` [PATCH v2 4/8] usb: rename phy to usb_phy in HCD Antoine Ténart
@ 2014-07-15 15:55 ` Sergei Shtylyov
2014-07-16 15:09 ` Felipe Balbi
0 siblings, 1 reply; 25+ messages in thread
From: Sergei Shtylyov @ 2014-07-15 15:55 UTC (permalink / raw)
To: Antoine Ténart, balbi, gregkh, Peter.Chen, kishon, stern
Cc: yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
Hello.
On 07/15/2014 06:39 PM, Antoine Ténart wrote:
> The USB PHY member of the HCD structure is renamed to 'usb_phy' and
> modifications are done in all drivers accessing it.
> Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
I've been thru that and such change has been turned down already.
WBR, Sergei
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 0/8] usb: add support for the generic PHY framework
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
` (7 preceding siblings ...)
2014-07-15 14:39 ` [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework " Antoine Ténart
@ 2014-07-15 15:58 ` Alan Stern
2014-07-16 17:45 ` Felipe Balbi
2014-07-23 11:36 ` Peter Chen
10 siblings, 0 replies; 25+ messages in thread
From: Alan Stern @ 2014-07-15 15:58 UTC (permalink / raw)
To: Antoine Ténart
Cc: balbi, gregkh, Peter.Chen, kishon, sergei.shtylyov,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
On Tue, 15 Jul 2014, Antoine Ténart wrote:
> Hi all,
>
> This is an attempt to add more common USB code aware of the generic PHY
> framework, while keeping the compatibility for the USB PHY one. It does
> not add the full support, some USB PHY specific functions not being
> available currently in the generic PHY subsystem (e.g. usb_phy_set_power()).
> But it allows to use the generic PHY framework in other cases, and might
> help others to convert their USB PHY drivers.
>
> A little background: I submitted a series to support USB on Berlin SoCs[1].
> One patch added a new PHY driver in drivers/usb/phy and Felipe asked it to
> be in the generic PHY framework instead[2]. This PHY being used by a ChipIdea
> driver, changes were needed in ChipIdea, OTG and HCD.
>
> This is done in 3 steps:
> 1. moving the OTG state from the USB PHY structure to the OTG one
> 2. renaming the field 'phy' to 'usb_phy'
> 3. adding a field for the generic framework PHY and dissociating its
> use from the USB PHY one
>
> Step 1 is in the first patch. Steps 2 and 3 are done for OTG, and ChipIdea
> subsystems in patches 2-3 and 7-8.
>
> HCD generic PHY support was made by Sergei and Yoshihiro[1]. I added some
> modifications to make this support consistent with this series in patches
> 4-6.
>
> I tested it by using the ChipIdea driver I introduced, both with an USB PHY
> and a PHY driver successfully. I also compiled a multi_v7 kernel (ARM), with
> every driver I could enable in the USB section.
>
> I'd like more people to test and your inputs and suggestions on these changes.
>
> Feel free to add Ccs if others might be interested in this. If needed patches
> can be squashed or divided, I tried there to group modifications by USB
> framework parts (OTG, HCD, ChipIdea).
>
> Patches can also be found at:
> git://git.free-electrons.com:users/antoine-tenart/linux.git usb-phy
>
> The series applies on top of Sergei and Yoshihiro generic PHY support in
> HCD[1].
For the changes to hub.c, hcd.c, and the ehci and ohci drivers:
Acked-by: Alan Stern <stern@rowland.harvard.edu>
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 4/8] usb: rename phy to usb_phy in HCD
2014-07-15 15:55 ` Sergei Shtylyov
@ 2014-07-16 15:09 ` Felipe Balbi
2014-07-16 17:02 ` Sergei Shtylyov
0 siblings, 1 reply; 25+ messages in thread
From: Felipe Balbi @ 2014-07-16 15:09 UTC (permalink / raw)
To: Sergei Shtylyov
Cc: Antoine Ténart, balbi, gregkh, Peter.Chen, kishon, stern,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 479 bytes --]
On Tue, Jul 15, 2014 at 07:55:51PM +0400, Sergei Shtylyov wrote:
> Hello.
>
> On 07/15/2014 06:39 PM, Antoine Ténart wrote:
>
> >The USB PHY member of the HCD structure is renamed to 'usb_phy' and
> >modifications are done in all drivers accessing it.
>
> >Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
>
> I've been thru that and such change has been turned down already.
can you find a link to that thread by any chance ?
--
balbi
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 4/8] usb: rename phy to usb_phy in HCD
2014-07-16 15:09 ` Felipe Balbi
@ 2014-07-16 17:02 ` Sergei Shtylyov
0 siblings, 0 replies; 25+ messages in thread
From: Sergei Shtylyov @ 2014-07-16 17:02 UTC (permalink / raw)
To: balbi
Cc: Antoine Ténart, gregkh, Peter.Chen, kishon, stern,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
Hello.
On 07/16/2014 07:09 PM, Felipe Balbi wrote:
>>> The USB PHY member of the HCD structure is renamed to 'usb_phy' and
>>> modifications are done in all drivers accessing it.
>>> Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
>> I've been thru that and such change has been turned down already.
OK, maybe not strictly "turned down" but still...
> can you find a link to that thread by any chance ?
http://marc.info/?l=linux-sh&m=139706087101917
WBR, Sergei
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 0/8] usb: add support for the generic PHY framework
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
` (8 preceding siblings ...)
2014-07-15 15:58 ` [PATCH v2 0/8] usb: add support for the generic PHY framework Alan Stern
@ 2014-07-16 17:45 ` Felipe Balbi
2014-07-17 8:03 ` Antoine Ténart
2014-07-23 11:36 ` Peter Chen
10 siblings, 1 reply; 25+ messages in thread
From: Felipe Balbi @ 2014-07-16 17:45 UTC (permalink / raw)
To: Antoine Ténart
Cc: balbi, gregkh, Peter.Chen, kishon, stern, sergei.shtylyov,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 2641 bytes --]
Hi,
On Tue, Jul 15, 2014 at 04:39:08PM +0200, Antoine Ténart wrote:
> Hi all,
>
> This is an attempt to add more common USB code aware of the generic PHY
> framework, while keeping the compatibility for the USB PHY one. It does
> not add the full support, some USB PHY specific functions not being
> available currently in the generic PHY subsystem (e.g. usb_phy_set_power()).
> But it allows to use the generic PHY framework in other cases, and might
> help others to convert their USB PHY drivers.
>
> A little background: I submitted a series to support USB on Berlin SoCs[1].
> One patch added a new PHY driver in drivers/usb/phy and Felipe asked it to
> be in the generic PHY framework instead[2]. This PHY being used by a ChipIdea
> driver, changes were needed in ChipIdea, OTG and HCD.
>
> This is done in 3 steps:
> 1. moving the OTG state from the USB PHY structure to the OTG one
> 2. renaming the field 'phy' to 'usb_phy'
> 3. adding a field for the generic framework PHY and dissociating its
> use from the USB PHY one
>
> Step 1 is in the first patch. Steps 2 and 3 are done for OTG, and ChipIdea
> subsystems in patches 2-3 and 7-8.
>
> HCD generic PHY support was made by Sergei and Yoshihiro[1]. I added some
> modifications to make this support consistent with this series in patches
> 4-6.
>
> I tested it by using the ChipIdea driver I introduced, both with an USB PHY
> and a PHY driver successfully. I also compiled a multi_v7 kernel (ARM), with
> every driver I could enable in the USB section.
>
> I'd like more people to test and your inputs and suggestions on these changes.
>
> Feel free to add Ccs if others might be interested in this. If needed patches
> can be squashed or divided, I tried there to group modifications by USB
> framework parts (OTG, HCD, ChipIdea).
>
> Patches can also be found at:
> git://git.free-electrons.com:users/antoine-tenart/linux.git usb-phy
>
> The series applies on top of Sergei and Yoshihiro generic PHY support in
> HCD[1].
>
> Thanks a lot!
>
> Antoine
>
> Changes since v1:
> - rebased the series on top of [1] (generic PHY support for HCD)
> - split s/phy/usb_phy/ renaming and generic PHY support in separate
> patches
>
> [1] https://www.mail-archive.com/linux-usb@vger.kernel.org/msg43471.html
Since this has a dependency on the other series which hasn't showed up
with enough Acks, I can't take this one either. Let's get this ready
early into v3.18-rc cycle so we don't miss this and the other series
again.
cheers
--
balbi
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 0/8] usb: add support for the generic PHY framework
2014-07-16 17:45 ` Felipe Balbi
@ 2014-07-17 8:03 ` Antoine Ténart
2014-07-17 17:23 ` Felipe Balbi
0 siblings, 1 reply; 25+ messages in thread
From: Antoine Ténart @ 2014-07-17 8:03 UTC (permalink / raw)
To: Felipe Balbi
Cc: Antoine Ténart, gregkh, Peter.Chen, kishon, stern,
sergei.shtylyov, yoshihiro.shimoda.uh, alexandre.belloni,
thomas.petazzoni, zmxu, jszhang, linux-usb, linux-kernel
Hi Felipe,
On Wed, Jul 16, 2014 at 12:45:13PM -0500, Felipe Balbi wrote:
> On Tue, Jul 15, 2014 at 04:39:08PM +0200, Antoine Ténart wrote:
> >
> > [1] https://www.mail-archive.com/linux-usb@vger.kernel.org/msg43471.html
>
> Since this has a dependency on the other series which hasn't showed up
> with enough Acks, I can't take this one either. Let's get this ready
> early into v3.18-rc cycle so we don't miss this and the other series
> again.
Since this patch does not differ a lot from what I proposed, and is not
that big, can't we try to have acks in the next days so that we can take
this series as well? That would help my Berlin USB series[1] which
depends on this one :)
[1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-July/272840.html
Antoine
--
Antoine Ténart, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 0/8] usb: add support for the generic PHY framework
2014-07-17 8:03 ` Antoine Ténart
@ 2014-07-17 17:23 ` Felipe Balbi
0 siblings, 0 replies; 25+ messages in thread
From: Felipe Balbi @ 2014-07-17 17:23 UTC (permalink / raw)
To: Antoine Ténart
Cc: Felipe Balbi, gregkh, Peter.Chen, kishon, stern, sergei.shtylyov,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
[-- Attachment #1: Type: text/plain, Size: 1104 bytes --]
Hi,
On Thu, Jul 17, 2014 at 10:03:02AM +0200, Antoine Ténart wrote:
> Hi Felipe,
>
> On Wed, Jul 16, 2014 at 12:45:13PM -0500, Felipe Balbi wrote:
> > On Tue, Jul 15, 2014 at 04:39:08PM +0200, Antoine Ténart wrote:
> > >
> > > [1] https://www.mail-archive.com/linux-usb@vger.kernel.org/msg43471.html
> >
> > Since this has a dependency on the other series which hasn't showed up
> > with enough Acks, I can't take this one either. Let's get this ready
> > early into v3.18-rc cycle so we don't miss this and the other series
> > again.
>
> Since this patch does not differ a lot from what I proposed, and is not
> that big, can't we try to have acks in the next days so that we can take
> this series as well? That would help my Berlin USB series[1] which
> depends on this one :)
>
> [1] http://lists.infradead.org/pipermail/linux-arm-kernel/2014-July/272840.html
my tree is already closed for v3.17 unless it's an important fix for
what's already in my 'next' branch. Moreover, I never got acks from
everybody necessary. Sorry, it has to wait until v3.18.
--
balbi
[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 6/8] usb: allow to supply the PHY in the drivers when using HCD
2014-07-15 14:39 ` [PATCH v2 6/8] usb: allow to supply the PHY in the drivers when using HCD Antoine Ténart
@ 2014-07-23 10:59 ` Peter Chen
0 siblings, 0 replies; 25+ messages in thread
From: Peter Chen @ 2014-07-23 10:59 UTC (permalink / raw)
To: Antoine Ténart
Cc: balbi, gregkh, kishon, stern, sergei.shtylyov,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
On Tue, Jul 15, 2014 at 04:39:14PM +0200, Antoine Ténart wrote:
> This patch modify the generic code handling PHYs to allow them to be
> supplied from the drivers. This adds checks to ensure no PHY was already
> there when looking for one in the generic code. This also makes sure we
> do not modify its state in the generic HCD functions, it it was
> provided by the driver.
one extra "it"
>
> Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
> ---
> drivers/usb/core/hcd.c | 7 ++++---
> 1 file changed, 4 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/usb/core/hcd.c b/drivers/usb/core/hcd.c
> index 228bad89f09b..ce9ea309ab0f 100644
> --- a/drivers/usb/core/hcd.c
> +++ b/drivers/usb/core/hcd.c
> @@ -2650,7 +2650,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
> }
> }
>
> - if (IS_ENABLED(CONFIG_GENERIC_PHY)) {
> + if (IS_ENABLED(CONFIG_GENERIC_PHY) && !hcd->phy) {
> struct phy *phy = phy_get(hcd->self.controller, "usb");
>
> if (IS_ERR(phy)) {
> @@ -2670,6 +2670,7 @@ int usb_add_hcd(struct usb_hcd *hcd,
> goto err_phy;
> }
> hcd->phy = phy;
> + hcd->remove_phy = 1;
> }
> }
>
> @@ -2816,7 +2817,7 @@ err_allocate_root_hub:
> err_register_bus:
> hcd_buffer_destroy(hcd);
> err_create_buf:
> - if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->phy) {
> + if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->remove_phy && hcd->phy) {
> phy_power_off(hcd->phy);
> phy_exit(hcd->phy);
> phy_put(hcd->phy);
> @@ -2900,7 +2901,7 @@ 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) {
> + if (IS_ENABLED(CONFIG_GENERIC_PHY) && hcd->remove_phy && hcd->phy) {
> phy_power_off(hcd->phy);
> phy_exit(hcd->phy);
> phy_put(hcd->phy);
> --
> 1.9.1
>
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 0/8] usb: add support for the generic PHY framework
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
` (9 preceding siblings ...)
2014-07-16 17:45 ` Felipe Balbi
@ 2014-07-23 11:36 ` Peter Chen
10 siblings, 0 replies; 25+ messages in thread
From: Peter Chen @ 2014-07-23 11:36 UTC (permalink / raw)
To: Antoine Ténart, balbi
Cc: gregkh, kishon, stern, sergei.shtylyov, yoshihiro.shimoda.uh,
alexandre.belloni, thomas.petazzoni, zmxu, jszhang, linux-usb,
linux-kernel
On Tue, Jul 15, 2014 at 04:39:08PM +0200, Antoine Ténart wrote:
> Hi all,
>
> This is an attempt to add more common USB code aware of the generic PHY
> framework, while keeping the compatibility for the USB PHY one. It does
> not add the full support, some USB PHY specific functions not being
> available currently in the generic PHY subsystem (e.g. usb_phy_set_power()).
> But it allows to use the generic PHY framework in other cases, and might
> help others to convert their USB PHY drivers.
>
> A little background: I submitted a series to support USB on Berlin SoCs[1].
> One patch added a new PHY driver in drivers/usb/phy and Felipe asked it to
> be in the generic PHY framework instead[2]. This PHY being used by a ChipIdea
> driver, changes were needed in ChipIdea, OTG and HCD.
>
> This is done in 3 steps:
> 1. moving the OTG state from the USB PHY structure to the OTG one
> 2. renaming the field 'phy' to 'usb_phy'
> 3. adding a field for the generic framework PHY and dissociating its
> use from the USB PHY one
>
> Step 1 is in the first patch. Steps 2 and 3 are done for OTG, and ChipIdea
> subsystems in patches 2-3 and 7-8.
We did wrong thing that added usb_phy to otg struct, so we should not
add any PHY related to struct otg any more, the otg and phy have NO
relationship, so the second patch and the third patch may do useless job
which may be deleted in future.
You did great refine job that moving otg state to struct otg, so why not
having another patchset to delete struct *otg from struct usb_phy and
delete struct *usb_phy from struct otg, if the phy driver needs otg
utilities, it can be an entry at phy driver's global struct like struct
usb_phy.
You can have one cleanup patchset to clean up the relationship between
usb_phy and otg which includes the first patch in this patchset, and
other cleanup patches, and this generic PHY framework patch can be the
second one.
Felipe, do you agree with me?
Peter
>
> HCD generic PHY support was made by Sergei and Yoshihiro[1]. I added some
> modifications to make this support consistent with this series in patches
> 4-6.
>
> I tested it by using the ChipIdea driver I introduced, both with an USB PHY
> and a PHY driver successfully. I also compiled a multi_v7 kernel (ARM), with
> every driver I could enable in the USB section.
>
> I'd like more people to test and your inputs and suggestions on these changes.
>
> Feel free to add Ccs if others might be interested in this. If needed patches
> can be squashed or divided, I tried there to group modifications by USB
> framework parts (OTG, HCD, ChipIdea).
>
> Patches can also be found at:
> git://git.free-electrons.com:users/antoine-tenart/linux.git usb-phy
>
> The series applies on top of Sergei and Yoshihiro generic PHY support in
> HCD[1].
>
> Thanks a lot!
>
> Antoine
>
> Changes since v1:
> - rebased the series on top of [1] (generic PHY support for HCD)
> - split s/phy/usb_phy/ renaming and generic PHY support in separate
> patches
>
> [1] https://www.mail-archive.com/linux-usb@vger.kernel.org/msg43471.html
>
> Antoine Ténart (8):
> usb: move the OTG state from the USB PHY to the OTG structure
> usb: rename phy to usb_phy in OTG
> usb: add support to the generic PHY framework in OTG
> usb: rename phy to usb_phy in HCD
> usb: rename gen_phy to phy in HCD
> usb: allow to supply the PHY in the drivers when using HCD
> usb: rename transceiver and phy to usb_phy in ChipIdea
> usb: chipidea: add support to the generic PHY framework in ChipIdea
>
> drivers/phy/phy-omap-usb2.c | 14 ++----
> drivers/usb/chipidea/ci.h | 7 ++-
> drivers/usb/chipidea/ci_hdrc_imx.c | 2 +-
> drivers/usb/chipidea/ci_hdrc_msm.c | 8 ++--
> drivers/usb/chipidea/core.c | 71 ++++++++++++++++++++++-----
> drivers/usb/chipidea/debug.c | 5 +-
> drivers/usb/chipidea/host.c | 18 ++++---
> drivers/usb/chipidea/otg_fsm.c | 18 +++----
> drivers/usb/chipidea/udc.c | 4 +-
> drivers/usb/common/usb-otg-fsm.c | 8 ++--
> drivers/usb/core/hcd.c | 45 +++++++++---------
> 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/musb/am35x.c | 28 +++++------
> drivers/usb/musb/blackfin.c | 18 +++----
> drivers/usb/musb/da8xx.c | 28 +++++------
> drivers/usb/musb/davinci.c | 18 +++----
> drivers/usb/musb/musb_core.c | 94 ++++++++++++++++++------------------
> drivers/usb/musb/musb_dsps.c | 26 +++++-----
> drivers/usb/musb/musb_gadget.c | 36 +++++++-------
> drivers/usb/musb/musb_host.c | 8 ++--
> drivers/usb/musb/musb_virthub.c | 22 ++++-----
> drivers/usb/musb/omap2430.c | 30 ++++++------
> drivers/usb/musb/tusb6010.c | 40 ++++++++--------
> drivers/usb/musb/ux500.c | 10 ++--
> drivers/usb/phy/phy-ab8500-usb.c | 16 +++----
> drivers/usb/phy/phy-fsl-usb.c | 23 ++++-----
> drivers/usb/phy/phy-generic.c | 6 +--
> drivers/usb/phy/phy-gpio-vbus-usb.c | 12 ++---
> drivers/usb/phy/phy-isp1301-omap.c | 10 ++--
> drivers/usb/phy/phy-msm-usb.c | 95 +++++++++++++++++++------------------
> drivers/usb/phy/phy-mv-usb.c | 50 +++++++++----------
> drivers/usb/phy/phy-samsung-usb2.c | 2 +-
> drivers/usb/phy/phy-tahvo.c | 8 ++--
> drivers/usb/phy/phy-ulpi.c | 6 +--
> include/linux/usb/chipidea.h | 4 +-
> include/linux/usb/hcd.h | 6 ++-
> include/linux/usb/otg.h | 7 ++-
> include/linux/usb/phy.h | 1 -
> 43 files changed, 469 insertions(+), 401 deletions(-)
>
> --
> 1.9.1
>
> --
> To unsubscribe from this list: send the line "unsubscribe linux-usb" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 7/8] usb: rename transceiver and phy to usb_phy in ChipIdea
2014-07-15 14:39 ` [PATCH v2 7/8] usb: rename transceiver and phy to usb_phy in ChipIdea Antoine Ténart
@ 2014-07-24 11:12 ` Peter Chen
0 siblings, 0 replies; 25+ messages in thread
From: Peter Chen @ 2014-07-24 11:12 UTC (permalink / raw)
To: Antoine Ténart
Cc: balbi, gregkh, kishon, stern, sergei.shtylyov,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
On Tue, Jul 15, 2014 at 04:39:15PM +0200, Antoine Ténart wrote:
> This patch prepares the introduction of the generic PHY support in the
> USB ChipIdea common functions. The USB PHY member of the ChipIdea
> structure ('transceiver') is renamed to 'usb_phy', the 'phy' member of
> the ChipIdea pdata structure is renamed to 'usb_phy' and modifications
> are done in all drivers accessing it. Renaming this pointer will allow
> to keep the compatibility for USB PHY drivers.
>
> Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
> ---
> drivers/usb/chipidea/ci.h | 4 ++--
> drivers/usb/chipidea/ci_hdrc_imx.c | 2 +-
> drivers/usb/chipidea/ci_hdrc_msm.c | 8 ++++----
> drivers/usb/chipidea/core.c | 20 ++++++++++----------
> drivers/usb/chipidea/debug.c | 2 +-
> drivers/usb/chipidea/host.c | 4 ++--
> drivers/usb/chipidea/otg_fsm.c | 4 ++--
> drivers/usb/chipidea/udc.c | 4 ++--
> include/linux/usb/chipidea.h | 2 +-
> 9 files changed, 25 insertions(+), 25 deletions(-)
>
> diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
> index 9563cb56d564..b2caa1772712 100644
> --- a/drivers/usb/chipidea/ci.h
> +++ b/drivers/usb/chipidea/ci.h
> @@ -161,7 +161,7 @@ struct hw_bank {
> * @test_mode: the selected test mode
> * @platdata: platform specific information supplied by parent device
> * @vbus_active: is VBUS active
> - * @transceiver: pointer to USB PHY, if any
> + * @usb_phy: pointer to USB PHY, if any
> * @hcd: pointer to usb_hcd for ehci host driver
> * @debugfs: root dentry for this controller in debugfs
> * @id_event: indicates there is an id event, and handled at ci_otg_work
> @@ -201,7 +201,7 @@ struct ci_hdrc {
>
> struct ci_hdrc_platform_data *platdata;
> int vbus_active;
> - struct usb_phy *transceiver;
> + struct usb_phy *usb_phy;
> struct usb_hcd *hcd;
> struct dentry *debugfs;
> bool id_event;
> diff --git a/drivers/usb/chipidea/ci_hdrc_imx.c b/drivers/usb/chipidea/ci_hdrc_imx.c
> index 2e58f8dfd311..33b982dddac5 100644
> --- a/drivers/usb/chipidea/ci_hdrc_imx.c
> +++ b/drivers/usb/chipidea/ci_hdrc_imx.c
> @@ -136,7 +136,7 @@ static int ci_hdrc_imx_probe(struct platform_device *pdev)
> goto err_clk;
> }
>
> - pdata.phy = data->phy;
> + pdata.usb_phy = data->phy;
>
> if (imx_platform_flag->flags & CI_HDRC_IMX_IMX28_WRITE_FIX)
> pdata.flags |= CI_HDRC_IMX28_WRITE_FIX;
> diff --git a/drivers/usb/chipidea/ci_hdrc_msm.c b/drivers/usb/chipidea/ci_hdrc_msm.c
> index d72b9d2de2c5..94cd7c3e12a3 100644
> --- a/drivers/usb/chipidea/ci_hdrc_msm.c
> +++ b/drivers/usb/chipidea/ci_hdrc_msm.c
> @@ -31,13 +31,13 @@ static void ci_hdrc_msm_notify_event(struct ci_hdrc *ci, unsigned event)
> case CI_HDRC_CONTROLLER_STOPPED_EVENT:
> dev_dbg(dev, "CI_HDRC_CONTROLLER_STOPPED_EVENT received\n");
> /*
> - * Put the transceiver in non-driving mode. Otherwise host
> + * Put the phy in non-driving mode. Otherwise host
> * may not detect soft-disconnection.
> */
> - val = usb_phy_io_read(ci->transceiver, ULPI_FUNC_CTRL);
> + val = usb_phy_io_read(ci->usb_phy, ULPI_FUNC_CTRL);
> val &= ~ULPI_FUNC_CTRL_OPMODE_MASK;
> val |= ULPI_FUNC_CTRL_OPMODE_NONDRIVING;
> - usb_phy_io_write(ci->transceiver, val, ULPI_FUNC_CTRL);
> + usb_phy_io_write(ci->usb_phy, val, ULPI_FUNC_CTRL);
> break;
> default:
> dev_dbg(dev, "unknown ci_hdrc event\n");
> @@ -71,7 +71,7 @@ static int ci_hdrc_msm_probe(struct platform_device *pdev)
> if (IS_ERR(phy))
> return PTR_ERR(phy);
>
> - ci_hdrc_msm_platdata.phy = phy;
> + ci_hdrc_msm_platdata.usb_phy = phy;
>
> plat_ci = ci_hdrc_add_device(&pdev->dev,
> pdev->resource, pdev->num_resources,
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index 619d13e29995..a8cd35fd8175 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -306,7 +306,7 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
> case USBPHY_INTERFACE_MODE_UTMI:
> case USBPHY_INTERFACE_MODE_UTMIW:
> case USBPHY_INTERFACE_MODE_HSIC:
> - ret = usb_phy_init(ci->transceiver);
> + ret = usb_phy_init(ci->usb_phy);
> if (ret)
> return ret;
> hw_phymode_configure(ci);
> @@ -314,12 +314,12 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
> case USBPHY_INTERFACE_MODE_ULPI:
> case USBPHY_INTERFACE_MODE_SERIAL:
> hw_phymode_configure(ci);
> - ret = usb_phy_init(ci->transceiver);
> + ret = usb_phy_init(ci->usb_phy);
> if (ret)
> return ret;
> break;
> default:
> - ret = usb_phy_init(ci->transceiver);
> + ret = usb_phy_init(ci->usb_phy);
> }
>
> return ret;
> @@ -595,13 +595,13 @@ static int ci_hdrc_probe(struct platform_device *pdev)
> return -ENODEV;
> }
>
> - if (ci->platdata->phy)
> - ci->transceiver = ci->platdata->phy;
> + if (ci->platdata->usb_phy)
> + ci->usb_phy = ci->platdata->usb_phy;
> else
> - ci->transceiver = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> + ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
>
> - if (IS_ERR(ci->transceiver)) {
> - ret = PTR_ERR(ci->transceiver);
> + if (IS_ERR(ci->usb_phy)) {
> + ret = PTR_ERR(ci->usb_phy);
> /*
> * if -ENXIO is returned, it means PHY layer wasn't
> * enabled, so it makes no sense to return -EPROBE_DEFER
> @@ -718,7 +718,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
> stop:
> ci_role_destroy(ci);
> deinit_phy:
> - usb_phy_shutdown(ci->transceiver);
> + usb_phy_shutdown(ci->usb_phy);
>
> return ret;
> }
> @@ -731,7 +731,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
> free_irq(ci->irq, ci);
> ci_role_destroy(ci);
> ci_hdrc_enter_lpm(ci, true);
> - usb_phy_shutdown(ci->transceiver);
> + usb_phy_shutdown(ci->usb_phy);
> kfree(ci->hw_bank.regmap);
>
> return 0;
> diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
> index 9a9702773e43..d47cddd38e4a 100644
> --- a/drivers/usb/chipidea/debug.c
> +++ b/drivers/usb/chipidea/debug.c
> @@ -219,7 +219,7 @@ int ci_otg_show(struct seq_file *s, void *unused)
> fsm = &ci->fsm;
>
> /* ------ State ----- */
> - usb_otg_state_string(ci->transceiver->otg.state));
> + usb_otg_state_string(ci->usb_phy->otg.state));
>
> /* ------ State Machine Variables ----- */
> seq_printf(s, "a_bus_drop: %d\n", fsm->a_bus_drop);
> diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> index fc7541c906a2..0b67d78dd953 100644
> --- a/drivers/usb/chipidea/host.c
> +++ b/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->usb_phy = ci->transceiver;
> + hcd->usb_phy = ci->usb_phy;
>
> ehci = hcd_to_ehci(hcd);
> ehci->caps = ci->hw_bank.cap;
> @@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
> if (ret) {
> goto disable_reg;
> } else {
> - struct usb_otg *otg = ci->transceiver->otg;
> + struct usb_otg *otg = ci->usb_phy->otg;
>
> ci->hcd = hcd;
> if (otg) {
> diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
> index d8490e758a74..8a64ce87364e 100644
> --- a/drivers/usb/chipidea/otg_fsm.c
> +++ b/drivers/usb/chipidea/otg_fsm.c
> @@ -788,10 +788,10 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
> return -ENOMEM;
> }
>
> - otg->usb_phy = ci->transceiver;
> + otg->usb_phy = ci->usb_phy;
> otg->gadget = &ci->gadget;
> ci->fsm.otg = otg;
> - ci->transceiver->otg = ci->fsm.otg;
> + ci->usb_phy->otg = ci->fsm.otg;
> ci->fsm.power_up = 1;
> ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> ci->fsm.otg->state = OTG_STATE_UNDEFINED;
> diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
> index 9d2b673f90e3..9d3966308942 100644
> --- a/drivers/usb/chipidea/udc.c
> +++ b/drivers/usb/chipidea/udc.c
> @@ -1519,8 +1519,8 @@ static int ci_udc_vbus_draw(struct usb_gadget *_gadget, unsigned ma)
> {
> struct ci_hdrc *ci = container_of(_gadget, struct ci_hdrc, gadget);
>
> - if (ci->transceiver)
> - return usb_phy_set_power(ci->transceiver, ma);
> + if (ci->usb_phy)
> + return usb_phy_set_power(ci->usb_phy, ma);
> return -ENOTSUPP;
> }
>
> diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
> index bbe779f640be..57d757a1aa83 100644
> --- a/include/linux/usb/chipidea.h
> +++ b/include/linux/usb/chipidea.h
> @@ -13,7 +13,7 @@ struct ci_hdrc_platform_data {
> /* offset of the capability registers */
> uintptr_t capoffset;
> unsigned power_budget;
> - struct usb_phy *phy;
> + struct usb_phy *usb_phy;
> enum usb_phy_interface phy_mode;
> unsigned long flags;
> #define CI_HDRC_REGS_SHARED BIT(0)
> --
> 1.9.1
>
This patch looks ok.
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework in ChipIdea
2014-07-15 14:39 ` [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework " Antoine Ténart
@ 2014-07-24 11:39 ` Peter Chen
2014-07-24 12:25 ` Antoine Ténart
0 siblings, 1 reply; 25+ messages in thread
From: Peter Chen @ 2014-07-24 11:39 UTC (permalink / raw)
To: Antoine Ténart
Cc: balbi, gregkh, kishon, stern, sergei.shtylyov,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
On Tue, Jul 15, 2014 at 04:39:16PM +0200, Antoine Ténart wrote:
> This patch adds support of the PHY framework for ChipIdea drivers.
> Changes are done in both the ChipIdea common code and in the drivers
> accessing the PHY. This is done by adding a new PHY member in
> ChipIdea's structures and by taking care of it in the code.
>
> Signed-off-by: Antoine Ténart <antoine.tenart@free-electrons.com>
> ---
> drivers/usb/chipidea/ci.h | 5 ++-
> drivers/usb/chipidea/core.c | 71 ++++++++++++++++++++++++++++++++++--------
> drivers/usb/chipidea/debug.c | 4 ++-
> drivers/usb/chipidea/host.c | 18 +++++++----
> drivers/usb/chipidea/otg_fsm.c | 6 ++--
> include/linux/usb/chipidea.h | 2 ++
> 6 files changed, 83 insertions(+), 23 deletions(-)
>
> diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
> index b2caa1772712..f219588f4ce6 100644
> --- a/drivers/usb/chipidea/ci.h
> +++ b/drivers/usb/chipidea/ci.h
> @@ -161,7 +161,8 @@ struct hw_bank {
> * @test_mode: the selected test mode
> * @platdata: platform specific information supplied by parent device
> * @vbus_active: is VBUS active
> - * @usb_phy: pointer to USB PHY, if any
> + * @phy: pointer to PHY, if any
> + * @usb_phy: pointer to USB PHY, if any and if using the USB PHY framework
> * @hcd: pointer to usb_hcd for ehci host driver
> * @debugfs: root dentry for this controller in debugfs
> * @id_event: indicates there is an id event, and handled at ci_otg_work
> @@ -201,6 +202,8 @@ struct ci_hdrc {
>
> struct ci_hdrc_platform_data *platdata;
> int vbus_active;
> + struct phy *phy;
> + /* old usb_phy interface */
> struct usb_phy *usb_phy;
> struct usb_hcd *hcd;
> struct dentry *debugfs;
> diff --git a/drivers/usb/chipidea/core.c b/drivers/usb/chipidea/core.c
> index a8cd35fd8175..28bcefcdbd9a 100644
> --- a/drivers/usb/chipidea/core.c
> +++ b/drivers/usb/chipidea/core.c
> @@ -47,6 +47,7 @@
> #include <linux/delay.h>
> #include <linux/device.h>
> #include <linux/dma-mapping.h>
> +#include <linux/phy/phy.h>
> #include <linux/platform_device.h>
> #include <linux/module.h>
> #include <linux/idr.h>
> @@ -293,6 +294,46 @@ static void hw_phymode_configure(struct ci_hdrc *ci)
> }
>
> /**
> + * _ci_usb_phy_init: initialize phy taking in account both phy and usb_phy
> + * interfaces
> + * @ci: the controller
> + *
> + * This function returns an error code if the phy failed to init
> + */
> +static int _ci_usb_phy_init(struct ci_hdrc *ci)
> +{
> + int ret;
> +
> + if (ci->phy) {
> + ret = phy_init(ci->phy);
> + if (ret) {
> + phy_exit(ci->phy);
If phy_init fails, we still need to call phy_exit?
> + return ret;
> + }
> + ret = phy_power_on(ci->phy);
If phy_power_on fails, we may need to call phy_exit
> + } else {
> + ret = usb_phy_init(ci->usb_phy);
> + }
> +
> + return ret;
> +}
> +
> +/**
> + * _ci_usb_phy_exit: deinitialize phy taking in account both phy and usb_phy
> + * interfaces
> + * @ci: the controller
> + */
> +static void ci_usb_phy_exit(struct ci_hdrc *ci)
> +{
> + if (ci->phy) {
> + phy_power_off(ci->phy);
> + phy_exit(ci->phy);
> + } else {
> + usb_phy_shutdown(ci->usb_phy);
> + }
> +}
> +
> +/**
> * ci_usb_phy_init: initialize phy according to different phy type
> * @ci: the controller
> *
> @@ -306,7 +347,7 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
> case USBPHY_INTERFACE_MODE_UTMI:
> case USBPHY_INTERFACE_MODE_UTMIW:
> case USBPHY_INTERFACE_MODE_HSIC:
> - ret = usb_phy_init(ci->usb_phy);
> + ret = _ci_usb_phy_init(ci);
> if (ret)
> return ret;
> hw_phymode_configure(ci);
> @@ -314,12 +355,12 @@ static int ci_usb_phy_init(struct ci_hdrc *ci)
> case USBPHY_INTERFACE_MODE_ULPI:
> case USBPHY_INTERFACE_MODE_SERIAL:
> hw_phymode_configure(ci);
> - ret = usb_phy_init(ci->usb_phy);
> + ret = _ci_usb_phy_init(ci);
> if (ret)
> return ret;
> break;
> default:
> - ret = usb_phy_init(ci->usb_phy);
> + ret = _ci_usb_phy_init(ci);
> }
>
> return ret;
> @@ -595,23 +636,27 @@ static int ci_hdrc_probe(struct platform_device *pdev)
> return -ENODEV;
> }
>
> - if (ci->platdata->usb_phy)
> + if (ci->platdata->phy)
> + ci->phy = ci->platdata->phy;
> + else if (ci->platdata->usb_phy)
> ci->usb_phy = ci->platdata->usb_phy;
> else
> - ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> + ci->phy = of_phy_get(dev->of_node, 0);
Here, we may need to consider both usb_phy and generic_phy, and
the core device is not populated from device tree.
You can use devm_usb_get_phy and devm_phy_get for global phy case.
>
> - if (IS_ERR(ci->usb_phy)) {
> - ret = PTR_ERR(ci->usb_phy);
> + if (IS_ERR(ci->phy)) {
> /*
> * if -ENXIO is returned, it means PHY layer wasn't
> * enabled, so it makes no sense to return -EPROBE_DEFER
> * in that case, since no PHY driver will ever probe.
> */
> - if (ret == -ENXIO)
> - return ret;
> + if (PTR_ERR(ci->phy) == -ENXIO)
> + return -ENXIO;
>
> - dev_err(dev, "no usb2 phy configured\n");
> - return -EPROBE_DEFER;
> + ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> + if (IS_ERR(ci->usb_phy)) {
> + dev_err(dev, "no usb2 phy configured\n");
> + return -EPROBE_DEFER;
> + }
> }
>
> ret = ci_usb_phy_init(ci);
> @@ -718,7 +763,7 @@ static int ci_hdrc_probe(struct platform_device *pdev)
> stop:
> ci_role_destroy(ci);
> deinit_phy:
> - usb_phy_shutdown(ci->usb_phy);
> + ci_usb_phy_exit(ci);
>
> return ret;
> }
> @@ -731,7 +776,7 @@ static int ci_hdrc_remove(struct platform_device *pdev)
> free_irq(ci->irq, ci);
> ci_role_destroy(ci);
> ci_hdrc_enter_lpm(ci, true);
> - usb_phy_shutdown(ci->usb_phy);
> + ci_usb_phy_exit(ci);
> kfree(ci->hw_bank.regmap);
>
> return 0;
> diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
> index d47cddd38e4a..77881a5ce48f 100644
> --- a/drivers/usb/chipidea/debug.c
> +++ b/drivers/usb/chipidea/debug.c
> @@ -219,7 +219,9 @@ int ci_otg_show(struct seq_file *s, void *unused)
> fsm = &ci->fsm;
>
> /* ------ State ----- */
> - usb_otg_state_string(ci->usb_phy->otg.state));
> + if (ci->usb_phy)
> + seq_printf(s, "OTG state: %s\n\n",
> + usb_otg_state_string(ci->usb_phy->otg->state));
You may change wrongly here.
>
> /* ------ State Machine Variables ----- */
> seq_printf(s, "a_bus_drop: %d\n", fsm->a_bus_drop);
> diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> index 0b67d78dd953..794349ab66af 100644
> --- a/drivers/usb/chipidea/host.c
> +++ b/drivers/usb/chipidea/host.c
> @@ -59,7 +59,10 @@ static int host_start(struct ci_hdrc *ci)
> hcd->has_tt = 1;
>
> hcd->power_budget = ci->platdata->power_budget;
> - hcd->usb_phy = ci->usb_phy;
> + if (ci->phy)
> + hcd->phy = ci->phy;
> + else
> + hcd->usb_phy = ci->usb_phy;
>
> ehci = hcd_to_ehci(hcd);
> ehci->caps = ci->hw_bank.cap;
> @@ -85,13 +88,16 @@ static int host_start(struct ci_hdrc *ci)
> if (ret) {
> goto disable_reg;
> } else {
> - struct usb_otg *otg = ci->usb_phy->otg;
> + if (ci->usb_phy) {
> + struct usb_otg *otg = ci->usb_phy->otg;
>
> - ci->hcd = hcd;
> - if (otg) {
> - otg->host = &hcd->self;
> - hcd->self.otg_port = 1;
> + if (otg) {
> + otg->host = &hcd->self;
> + hcd->self.otg_port = 1;
> + }
> }
The otg port is still existed even use generic phy.
> +
> + ci->hcd = hcd;
> }
>
> if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
> diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
> index 8a64ce87364e..2c11f260633c 100644
> --- a/drivers/usb/chipidea/otg_fsm.c
> +++ b/drivers/usb/chipidea/otg_fsm.c
> @@ -788,10 +788,12 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
> return -ENOMEM;
> }
>
> - otg->usb_phy = ci->usb_phy;
> + if (ci->phy)
> + otg->phy = ci->phy;
> + else
> + otg->usb_phy = ci->usb_phy;
> otg->gadget = &ci->gadget;
> ci->fsm.otg = otg;
> - ci->usb_phy->otg = ci->fsm.otg;
Why you remove above line?
> ci->fsm.power_up = 1;
> ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> ci->fsm.otg->state = OTG_STATE_UNDEFINED;
> diff --git a/include/linux/usb/chipidea.h b/include/linux/usb/chipidea.h
> index 57d757a1aa83..a0285623b9c1 100644
> --- a/include/linux/usb/chipidea.h
> +++ b/include/linux/usb/chipidea.h
> @@ -13,6 +13,8 @@ struct ci_hdrc_platform_data {
> /* offset of the capability registers */
> uintptr_t capoffset;
> unsigned power_budget;
> + struct phy *phy;
> + /* old usb_phy interface */
> struct usb_phy *usb_phy;
> enum usb_phy_interface phy_mode;
> unsigned long flags;
> --
> 1.9.1
>
--
Best Regards,
Peter Chen
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework in ChipIdea
2014-07-24 11:39 ` Peter Chen
@ 2014-07-24 12:25 ` Antoine Ténart
2014-07-25 0:34 ` Peter Chen
0 siblings, 1 reply; 25+ messages in thread
From: Antoine Ténart @ 2014-07-24 12:25 UTC (permalink / raw)
To: Peter Chen
Cc: Antoine Ténart, balbi, gregkh, kishon, stern,
sergei.shtylyov, yoshihiro.shimoda.uh, alexandre.belloni,
thomas.petazzoni, zmxu, jszhang, linux-usb, linux-kernel
Hi Peter,
On Thu, Jul 24, 2014 at 07:39:42PM +0800, Peter Chen wrote:
> On Tue, Jul 15, 2014 at 04:39:16PM +0200, Antoine Ténart wrote:
> >
> > /**
> > + * _ci_usb_phy_init: initialize phy taking in account both phy and usb_phy
> > + * interfaces
> > + * @ci: the controller
> > + *
> > + * This function returns an error code if the phy failed to init
> > + */
> > +static int _ci_usb_phy_init(struct ci_hdrc *ci)
> > +{
> > + int ret;
> > +
> > + if (ci->phy) {
> > + ret = phy_init(ci->phy);
> > + if (ret) {
> > + phy_exit(ci->phy);
>
> If phy_init fails, we still need to call phy_exit?
>
> > + return ret;
> > + }
> > + ret = phy_power_on(ci->phy);
>
> If phy_power_on fails, we may need to call phy_exit
Sure, phy_exit() should be moved under the calling to phy_power_on().
> >
> > - if (ci->platdata->usb_phy)
> > + if (ci->platdata->phy)
> > + ci->phy = ci->platdata->phy;
> > + else if (ci->platdata->usb_phy)
> > ci->usb_phy = ci->platdata->usb_phy;
> > else
> > - ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> > + ci->phy = of_phy_get(dev->of_node, 0);
>
> Here, we may need to consider both usb_phy and generic_phy, and
> the core device is not populated from device tree.
>
> You can use devm_usb_get_phy and devm_phy_get for global phy case.
This is the case. If no PHY is found by of_phy_get() we try to get an
USB PHY by calling devm_usb_get_phy().
>
> >
> > - if (IS_ERR(ci->usb_phy)) {
> > - ret = PTR_ERR(ci->usb_phy);
> > + if (IS_ERR(ci->phy)) {
> > /*
> > * if -ENXIO is returned, it means PHY layer wasn't
> > * enabled, so it makes no sense to return -EPROBE_DEFER
> > * in that case, since no PHY driver will ever probe.
> > */
> > - if (ret == -ENXIO)
> > - return ret;
> > + if (PTR_ERR(ci->phy) == -ENXIO)
> > + return -ENXIO;
> >
> > - dev_err(dev, "no usb2 phy configured\n");
> > - return -EPROBE_DEFER;
> > + ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> > + if (IS_ERR(ci->usb_phy)) {
> > + dev_err(dev, "no usb2 phy configured\n");
> > + return -EPROBE_DEFER;
> > + }
> > }
[snip]
> > diff --git a/drivers/usb/chipidea/debug.c b/drivers/usb/chipidea/debug.c
> > index d47cddd38e4a..77881a5ce48f 100644
> > --- a/drivers/usb/chipidea/debug.c
> > +++ b/drivers/usb/chipidea/debug.c
> > @@ -219,7 +219,9 @@ int ci_otg_show(struct seq_file *s, void *unused)
> > fsm = &ci->fsm;
> >
> > /* ------ State ----- */
> > - usb_otg_state_string(ci->usb_phy->otg.state));
> > + if (ci->usb_phy)
> > + seq_printf(s, "OTG state: %s\n\n",
> > + usb_otg_state_string(ci->usb_phy->otg->state));
>
> You may change wrongly here.
I thought a pointer to the OTG info wasn't available from there. I just
checked, and it seems we can retrieve if from the otg_fsm structure
here. I'll test and update.
> > @@ -85,13 +88,16 @@ static int host_start(struct ci_hdrc *ci)
> > if (ret) {
> > goto disable_reg;
> > } else {
> > - struct usb_otg *otg = ci->usb_phy->otg;
> > + if (ci->usb_phy) {
> > + struct usb_otg *otg = ci->usb_phy->otg;
> >
> > - ci->hcd = hcd;
> > - if (otg) {
> > - otg->host = &hcd->self;
> > - hcd->self.otg_port = 1;
> > + if (otg) {
> > + otg->host = &hcd->self;
> > + hcd->self.otg_port = 1;
> > + }
> > }
>
> The otg port is still existed even use generic phy.
Yes. I don't know how to retrieve the OTG pointer when we do not use an
USB PHY. We may have to add an OTG member into the ci_hdrc structure,
but I didn't understand well where does occur this OTG setup.
I may have missed something. Do you know if CI OTG always is in FSM
mode? If so we could access the OTG pointer through ci_hdrc->fsm.
> >
> > if (ci->platdata->flags & CI_HDRC_DISABLE_STREAMING)
> > diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
> > index 8a64ce87364e..2c11f260633c 100644
> > --- a/drivers/usb/chipidea/otg_fsm.c
> > +++ b/drivers/usb/chipidea/otg_fsm.c
> > @@ -788,10 +788,12 @@ int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
> > return -ENOMEM;
> > }
> >
> > - otg->usb_phy = ci->usb_phy;
> > + if (ci->phy)
> > + otg->phy = ci->phy;
> > + else
> > + otg->usb_phy = ci->usb_phy;
> > otg->gadget = &ci->gadget;
> > ci->fsm.otg = otg;
> > - ci->usb_phy->otg = ci->fsm.otg;
>
> Why you remove above line?
It shouldn't be removed as it is, because we still use it in CI. As far
as I know, this is not used in the common OTG code. If we manage to put
the OTG information into the ci_hdrc structure, we could safely remove
this line.
I guess the answer to the previous comment will also fix this :)
Thanks!
Antoine
--
Antoine Ténart, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 25+ messages in thread
* RE: [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework in ChipIdea
2014-07-24 12:25 ` Antoine Ténart
@ 2014-07-25 0:34 ` Peter Chen
2014-07-25 8:13 ` Antoine Ténart
0 siblings, 1 reply; 25+ messages in thread
From: Peter Chen @ 2014-07-25 0:34 UTC (permalink / raw)
To: Antoine Ténart
Cc: balbi, gregkh, kishon, stern, sergei.shtylyov,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
> > >
> > > - if (ci->platdata->usb_phy)
> > > + if (ci->platdata->phy)
> > > + ci->phy = ci->platdata->phy;
> > > + else if (ci->platdata->usb_phy)
> > > ci->usb_phy = ci->platdata->usb_phy;
> > > else
> > > - ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> > > + ci->phy = of_phy_get(dev->of_node, 0);
> >
> > Here, we may need to consider both usb_phy and generic_phy, and the
> > core device is not populated from device tree.
> >
> > You can use devm_usb_get_phy and devm_phy_get for global phy case.
>
> This is the case. If no PHY is found by of_phy_get() we try to get an USB
> PHY by calling devm_usb_get_phy().
>
Like I said above, the core device is not populated from DT, so the DT version
phy API may not be needed.
> >
> > >
> > > - if (IS_ERR(ci->usb_phy)) {
> > > - ret = PTR_ERR(ci->usb_phy);
> > > + if (IS_ERR(ci->phy)) {
> > > /*
> > > * if -ENXIO is returned, it means PHY layer wasn't
> > > * enabled, so it makes no sense to return -EPROBE_DEFER
> > > * in that case, since no PHY driver will ever probe.
> > > */
> > > - if (ret == -ENXIO)
> > > - return ret;
> > > + if (PTR_ERR(ci->phy) == -ENXIO)
> > > + return -ENXIO;
> > >
> > > - dev_err(dev, "no usb2 phy configured\n");
> > > - return -EPROBE_DEFER;
> > > + ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> > > + if (IS_ERR(ci->usb_phy)) {
> > > + dev_err(dev, "no usb2 phy configured\n");
> > > + return -EPROBE_DEFER;
> > > + }
> > > }
>
> [snip]
>
> > > diff --git a/drivers/usb/chipidea/debug.c
> > > b/drivers/usb/chipidea/debug.c index d47cddd38e4a..77881a5ce48f
> > > 100644
> > > --- a/drivers/usb/chipidea/debug.c
> > > +++ b/drivers/usb/chipidea/debug.c
> > > @@ -219,7 +219,9 @@ int ci_otg_show(struct seq_file *s, void *unused)
> > > fsm = &ci->fsm;
> > >
> > > /* ------ State ----- */
> > > - usb_otg_state_string(ci->usb_phy->otg.state));
> > > + if (ci->usb_phy)
> > > + seq_printf(s, "OTG state: %s\n\n",
> > > + usb_otg_state_string(ci->usb_phy->otg->state));
> >
> > You may change wrongly here.
>
> I thought a pointer to the OTG info wasn't available from there. I just
> checked, and it seems we can retrieve if from the otg_fsm structure here.
> I'll test and update.
>
> > > @@ -85,13 +88,16 @@ static int host_start(struct ci_hdrc *ci)
> > > if (ret) {
> > > goto disable_reg;
> > > } else {
> > > - struct usb_otg *otg = ci->usb_phy->otg;
> > > + if (ci->usb_phy) {
> > > + struct usb_otg *otg = ci->usb_phy->otg;
> > >
> > > - ci->hcd = hcd;
> > > - if (otg) {
> > > - otg->host = &hcd->self;
> > > - hcd->self.otg_port = 1;
> > > + if (otg) {
> > > + otg->host = &hcd->self;
> > > + hcd->self.otg_port = 1;
> > > + }
> > > }
> >
> > The otg port is still existed even use generic phy.
>
> Yes. I don't know how to retrieve the OTG pointer when we do not use an
> USB PHY. We may have to add an OTG member into the ci_hdrc structure, but
> I didn't understand well where does occur this OTG setup.
>
> I may have missed something. Do you know if CI OTG always is in FSM mode?
> If so we could access the OTG pointer through ci_hdrc->fsm.
>
Just add OTG member into ci_hdrc structure, see below patch
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 9563cb5..186fb3f 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -207,6 +207,7 @@ struct ci_hdrc {
bool id_event;
bool b_sess_valid_event;
bool imx28_write_fix;
+ struct usb_otg otg;
};
static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index a93d950..70d7fe2 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
if (ret) {
goto disable_reg;
} else {
- struct usb_otg *otg = ci->transceiver->otg;
+ struct usb_otg *otg = &ci->otg;
ci->hcd = hcd;
if (otg) {
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 8cb2508..fc8847e 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -778,20 +778,8 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
{
int retval = 0;
- struct usb_otg *otg;
- otg = devm_kzalloc(ci->dev,
- sizeof(struct usb_otg), GFP_KERNEL);
- if (!otg) {
- dev_err(ci->dev,
- "Failed to allocate usb_otg structure for ci hdrc otg!\n");
- return -ENOMEM;
- }
-
- otg->phy = ci->transceiver;
- otg->gadget = &ci->gadget;
- ci->fsm.otg = otg;
- ci->transceiver->otg = ci->fsm.otg;
+ ci->fsm.otg = &ci->otg;
ci->fsm.power_up = 1;
ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
ci->fsm.otg->state = OTG_STATE_UNDEFINED;
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 33d3480..b2f7587 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -14,7 +14,6 @@
struct usb_otg {
u8 default_a;
- struct usb_phy *phy;
struct usb_bus *host;
struct usb_gadget *gadget;
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index ac7d791..b732541 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -79,8 +79,6 @@ struct usb_phy {
enum usb_phy_type type;
enum usb_phy_events last_event;
- struct usb_otg *otg;
-
struct device *io_dev;
struct usb_phy_io_ops *io_ops;
void __iomem *io_priv;
b29397@shlinux1:~/work/projects/upstream/usb/usb$ git diff > a.diff
b29397@shlinux1:~/work/projects/upstream/usb/usb$ cat a.diff
diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
index 9563cb5..186fb3f 100644
--- a/drivers/usb/chipidea/ci.h
+++ b/drivers/usb/chipidea/ci.h
@@ -207,6 +207,7 @@ struct ci_hdrc {
bool id_event;
bool b_sess_valid_event;
bool imx28_write_fix;
+ struct usb_otg otg;
};
static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
index a93d950..70d7fe2 100644
--- a/drivers/usb/chipidea/host.c
+++ b/drivers/usb/chipidea/host.c
@@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
if (ret) {
goto disable_reg;
} else {
- struct usb_otg *otg = ci->transceiver->otg;
+ struct usb_otg *otg = &ci->otg;
ci->hcd = hcd;
if (otg) {
diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
index 8cb2508..fc8847e 100644
--- a/drivers/usb/chipidea/otg_fsm.c
+++ b/drivers/usb/chipidea/otg_fsm.c
@@ -778,20 +778,8 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
{
int retval = 0;
- struct usb_otg *otg;
- otg = devm_kzalloc(ci->dev,
- sizeof(struct usb_otg), GFP_KERNEL);
- if (!otg) {
- dev_err(ci->dev,
- "Failed to allocate usb_otg structure for ci hdrc otg!\n");
- return -ENOMEM;
- }
-
- otg->phy = ci->transceiver;
- otg->gadget = &ci->gadget;
- ci->fsm.otg = otg;
- ci->transceiver->otg = ci->fsm.otg;
+ ci->fsm.otg = &ci->otg;
ci->fsm.power_up = 1;
ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
ci->fsm.otg->state = OTG_STATE_UNDEFINED;
diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
index 33d3480..b2f7587 100644
--- a/include/linux/usb/otg.h
+++ b/include/linux/usb/otg.h
@@ -14,7 +14,6 @@
struct usb_otg {
u8 default_a;
- struct usb_phy *phy;
struct usb_bus *host;
struct usb_gadget *gadget;
diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
index ac7d791..b732541 100644
--- a/include/linux/usb/phy.h
+++ b/include/linux/usb/phy.h
@@ -79,8 +79,6 @@ struct usb_phy {
enum usb_phy_type type;
enum usb_phy_events last_event;
- struct usb_otg *otg;
-
struct device *io_dev;
struct usb_phy_io_ops *io_ops;
void __iomem *io_priv;
Peter
^ permalink raw reply related [flat|nested] 25+ messages in thread
* Re: [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework in ChipIdea
2014-07-25 0:34 ` Peter Chen
@ 2014-07-25 8:13 ` Antoine Ténart
2014-07-25 8:33 ` Peter Chen
0 siblings, 1 reply; 25+ messages in thread
From: Antoine Ténart @ 2014-07-25 8:13 UTC (permalink / raw)
To: Peter Chen
Cc: Antoine Ténart, balbi, gregkh, kishon, stern,
sergei.shtylyov, yoshihiro.shimoda.uh, alexandre.belloni,
thomas.petazzoni, zmxu, jszhang, linux-usb, linux-kernel
Hi Peter,
On Fri, Jul 25, 2014 at 12:34:39AM +0000, Peter Chen wrote:
>
> > > >
> > > > - if (ci->platdata->usb_phy)
> > > > + if (ci->platdata->phy)
> > > > + ci->phy = ci->platdata->phy;
> > > > + else if (ci->platdata->usb_phy)
> > > > ci->usb_phy = ci->platdata->usb_phy;
> > > > else
> > > > - ci->usb_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB2);
> > > > + ci->phy = of_phy_get(dev->of_node, 0);
> > >
> > > Here, we may need to consider both usb_phy and generic_phy, and the
> > > core device is not populated from device tree.
> > >
> > > You can use devm_usb_get_phy and devm_phy_get for global phy case.
> >
> > This is the case. If no PHY is found by of_phy_get() we try to get an USB
> > PHY by calling devm_usb_get_phy().
> >
>
> Like I said above, the core device is not populated from DT, so the DT version
> phy API may not be needed.
I see, I'll switch to devm_usb_get_phy() and devm_phy_get().
> >
> > > > @@ -85,13 +88,16 @@ static int host_start(struct ci_hdrc *ci)
> > > > if (ret) {
> > > > goto disable_reg;
> > > > } else {
> > > > - struct usb_otg *otg = ci->usb_phy->otg;
> > > > + if (ci->usb_phy) {
> > > > + struct usb_otg *otg = ci->usb_phy->otg;
> > > >
> > > > - ci->hcd = hcd;
> > > > - if (otg) {
> > > > - otg->host = &hcd->self;
> > > > - hcd->self.otg_port = 1;
> > > > + if (otg) {
> > > > + otg->host = &hcd->self;
> > > > + hcd->self.otg_port = 1;
> > > > + }
> > > > }
> > >
> > > The otg port is still existed even use generic phy.
> >
> > Yes. I don't know how to retrieve the OTG pointer when we do not use an
> > USB PHY. We may have to add an OTG member into the ci_hdrc structure, but
> > I didn't understand well where does occur this OTG setup.
> >
> > I may have missed something. Do you know if CI OTG always is in FSM mode?
> > If so we could access the OTG pointer through ci_hdrc->fsm.
> >
>
> Just add OTG member into ci_hdrc structure, see below patch
>
> diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
> index 9563cb5..186fb3f 100644
> --- a/drivers/usb/chipidea/ci.h
> +++ b/drivers/usb/chipidea/ci.h
> @@ -207,6 +207,7 @@ struct ci_hdrc {
> bool id_event;
> bool b_sess_valid_event;
> bool imx28_write_fix;
> + struct usb_otg otg;
> };
>
> static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
> diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> index a93d950..70d7fe2 100644
> --- a/drivers/usb/chipidea/host.c
> +++ b/drivers/usb/chipidea/host.c
> @@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
> if (ret) {
> goto disable_reg;
> } else {
> - struct usb_otg *otg = ci->transceiver->otg;
> + struct usb_otg *otg = &ci->otg;
>
> ci->hcd = hcd;
> if (otg) {
> diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
> index 8cb2508..fc8847e 100644
> --- a/drivers/usb/chipidea/otg_fsm.c
> +++ b/drivers/usb/chipidea/otg_fsm.c
> @@ -778,20 +778,8 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
> int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
> {
> int retval = 0;
> - struct usb_otg *otg;
>
> - otg = devm_kzalloc(ci->dev,
> - sizeof(struct usb_otg), GFP_KERNEL);
> - if (!otg) {
> - dev_err(ci->dev,
> - "Failed to allocate usb_otg structure for ci hdrc otg!\n");
> - return -ENOMEM;
> - }
> -
> - otg->phy = ci->transceiver;
> - otg->gadget = &ci->gadget;
> - ci->fsm.otg = otg;
> - ci->transceiver->otg = ci->fsm.otg;
> + ci->fsm.otg = &ci->otg;
> ci->fsm.power_up = 1;
> ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> ci->fsm.otg->state = OTG_STATE_UNDEFINED;
> diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
> index 33d3480..b2f7587 100644
> --- a/include/linux/usb/otg.h
> +++ b/include/linux/usb/otg.h
> @@ -14,7 +14,6 @@
> struct usb_otg {
> u8 default_a;
>
> - struct usb_phy *phy;
> struct usb_bus *host;
> struct usb_gadget *gadget;
>
> diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
> index ac7d791..b732541 100644
> --- a/include/linux/usb/phy.h
> +++ b/include/linux/usb/phy.h
> @@ -79,8 +79,6 @@ struct usb_phy {
> enum usb_phy_type type;
> enum usb_phy_events last_event;
>
> - struct usb_otg *otg;
> -
> struct device *io_dev;
> struct usb_phy_io_ops *io_ops;
> void __iomem *io_priv;
> b29397@shlinux1:~/work/projects/upstream/usb/usb$ git diff > a.diff
> b29397@shlinux1:~/work/projects/upstream/usb/usb$ cat a.diff
> diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
> index 9563cb5..186fb3f 100644
> --- a/drivers/usb/chipidea/ci.h
> +++ b/drivers/usb/chipidea/ci.h
> @@ -207,6 +207,7 @@ struct ci_hdrc {
> bool id_event;
> bool b_sess_valid_event;
> bool imx28_write_fix;
> + struct usb_otg otg;
> };
>
> static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci)
> diff --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> index a93d950..70d7fe2 100644
> --- a/drivers/usb/chipidea/host.c
> +++ b/drivers/usb/chipidea/host.c
> @@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
> if (ret) {
> goto disable_reg;
> } else {
> - struct usb_otg *otg = ci->transceiver->otg;
> + struct usb_otg *otg = &ci->otg;
>
> ci->hcd = hcd;
> if (otg) {
> diff --git a/drivers/usb/chipidea/otg_fsm.c b/drivers/usb/chipidea/otg_fsm.c
> index 8cb2508..fc8847e 100644
> --- a/drivers/usb/chipidea/otg_fsm.c
> +++ b/drivers/usb/chipidea/otg_fsm.c
> @@ -778,20 +778,8 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
> int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci)
> {
> int retval = 0;
> - struct usb_otg *otg;
>
> - otg = devm_kzalloc(ci->dev,
> - sizeof(struct usb_otg), GFP_KERNEL);
> - if (!otg) {
> - dev_err(ci->dev,
> - "Failed to allocate usb_otg structure for ci hdrc otg!\n");
> - return -ENOMEM;
> - }
> -
> - otg->phy = ci->transceiver;
> - otg->gadget = &ci->gadget;
> - ci->fsm.otg = otg;
> - ci->transceiver->otg = ci->fsm.otg;
> + ci->fsm.otg = &ci->otg;
> ci->fsm.power_up = 1;
> ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> ci->fsm.otg->state = OTG_STATE_UNDEFINED;
> diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
> index 33d3480..b2f7587 100644
> --- a/include/linux/usb/otg.h
> +++ b/include/linux/usb/otg.h
> @@ -14,7 +14,6 @@
> struct usb_otg {
> u8 default_a;
>
> - struct usb_phy *phy;
> struct usb_bus *host;
> struct usb_gadget *gadget;
>
> diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h
> index ac7d791..b732541 100644
> --- a/include/linux/usb/phy.h
> +++ b/include/linux/usb/phy.h
> @@ -79,8 +79,6 @@ struct usb_phy {
> enum usb_phy_type type;
> enum usb_phy_events last_event;
>
> - struct usb_otg *otg;
> -
> struct device *io_dev;
> struct usb_phy_io_ops *io_ops;
> void __iomem *io_priv;
Where does the ci->otg setup occurs? It seems to me it's never filled.
Antoine
--
Antoine Ténart, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 25+ messages in thread
* RE: [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework in ChipIdea
2014-07-25 8:13 ` Antoine Ténart
@ 2014-07-25 8:33 ` Peter Chen
2014-07-25 8:38 ` Antoine Ténart
0 siblings, 1 reply; 25+ messages in thread
From: Peter Chen @ 2014-07-25 8:33 UTC (permalink / raw)
To: Antoine Ténart
Cc: balbi, gregkh, kishon, stern, sergei.shtylyov,
yoshihiro.shimoda.uh, alexandre.belloni, thomas.petazzoni, zmxu,
jszhang, linux-usb, linux-kernel
> > >
> >
> > Just add OTG member into ci_hdrc structure, see below patch
> >
> > diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
> > index 9563cb5..186fb3f 100644
> > --- a/drivers/usb/chipidea/ci.h
> > +++ b/drivers/usb/chipidea/ci.h
> > @@ -207,6 +207,7 @@ struct ci_hdrc {
> > bool id_event;
> > bool b_sess_valid_event;
> > bool imx28_write_fix;
> > + struct usb_otg otg;
> > };
> >
> > static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci) diff
> > --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> > index a93d950..70d7fe2 100644
> > --- a/drivers/usb/chipidea/host.c
> > +++ b/drivers/usb/chipidea/host.c
> > @@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
> > if (ret) {
> > goto disable_reg;
> > } else {
> > - struct usb_otg *otg = ci->transceiver->otg;
> > + struct usb_otg *otg = &ci->otg;
> >
> > ci->hcd = hcd;
> > if (otg) {
> > diff --git a/drivers/usb/chipidea/otg_fsm.c
> > b/drivers/usb/chipidea/otg_fsm.c index 8cb2508..fc8847e 100644
> > --- a/drivers/usb/chipidea/otg_fsm.c
> > +++ b/drivers/usb/chipidea/otg_fsm.c
> > @@ -778,20 +778,8 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
> > int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci) {
> > int retval = 0;
> > - struct usb_otg *otg;
> >
> > - otg = devm_kzalloc(ci->dev,
> > - sizeof(struct usb_otg), GFP_KERNEL);
> > - if (!otg) {
> > - dev_err(ci->dev,
> > - "Failed to allocate usb_otg structure for ci hdrc
> otg!\n");
> > - return -ENOMEM;
> > - }
> > -
> > - otg->phy = ci->transceiver;
> > - otg->gadget = &ci->gadget;
> > - ci->fsm.otg = otg;
> > - ci->transceiver->otg = ci->fsm.otg;
> > + ci->fsm.otg = &ci->otg;
> > ci->fsm.power_up = 1;
> > ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> > ci->fsm.otg->state = OTG_STATE_UNDEFINED; diff --git
> > a/include/linux/usb/otg.h b/include/linux/usb/otg.h index
> > 33d3480..b2f7587 100644
> > --- a/include/linux/usb/otg.h
> > +++ b/include/linux/usb/otg.h
> > @@ -14,7 +14,6 @@
> > struct usb_otg {
> > u8 default_a;
> >
> > - struct usb_phy *phy;
> > struct usb_bus *host;
> > struct usb_gadget *gadget;
> >
> > diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index
> > ac7d791..b732541 100644
> > --- a/include/linux/usb/phy.h
> > +++ b/include/linux/usb/phy.h
> > @@ -79,8 +79,6 @@ struct usb_phy {
> > enum usb_phy_type type;
> > enum usb_phy_events last_event;
> >
> > - struct usb_otg *otg;
> > -
> > struct device *io_dev;
> > struct usb_phy_io_ops *io_ops;
> > void __iomem *io_priv;
> > b29397@shlinux1:~/work/projects/upstream/usb/usb$ git diff > a.diff
> > b29397@shlinux1:~/work/projects/upstream/usb/usb$ cat a.diff diff
> > --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index
> > 9563cb5..186fb3f 100644
> > --- a/drivers/usb/chipidea/ci.h
> > +++ b/drivers/usb/chipidea/ci.h
> > @@ -207,6 +207,7 @@ struct ci_hdrc {
> > bool id_event;
> > bool b_sess_valid_event;
> > bool imx28_write_fix;
> > + struct usb_otg otg;
> > };
> >
> > static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci) diff
> > --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> > index a93d950..70d7fe2 100644
> > --- a/drivers/usb/chipidea/host.c
> > +++ b/drivers/usb/chipidea/host.c
> > @@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
> > if (ret) {
> > goto disable_reg;
> > } else {
> > - struct usb_otg *otg = ci->transceiver->otg;
> > + struct usb_otg *otg = &ci->otg;
> >
> > ci->hcd = hcd;
> > if (otg) {
> > diff --git a/drivers/usb/chipidea/otg_fsm.c
> > b/drivers/usb/chipidea/otg_fsm.c index 8cb2508..fc8847e 100644
> > --- a/drivers/usb/chipidea/otg_fsm.c
> > +++ b/drivers/usb/chipidea/otg_fsm.c
> > @@ -778,20 +778,8 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
> > int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci) {
> > int retval = 0;
> > - struct usb_otg *otg;
> >
> > - otg = devm_kzalloc(ci->dev,
> > - sizeof(struct usb_otg), GFP_KERNEL);
> > - if (!otg) {
> > - dev_err(ci->dev,
> > - "Failed to allocate usb_otg structure for ci hdrc otg!\n");
> > - return -ENOMEM;
> > - }
> > -
> > - otg->phy = ci->transceiver;
> > - otg->gadget = &ci->gadget;
> > - ci->fsm.otg = otg;
> > - ci->transceiver->otg = ci->fsm.otg;
> > + ci->fsm.otg = &ci->otg;
> > ci->fsm.power_up = 1;
> > ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> > ci->fsm.otg->state = OTG_STATE_UNDEFINED; diff --git
> > a/include/linux/usb/otg.h b/include/linux/usb/otg.h index
> > 33d3480..b2f7587 100644
> > --- a/include/linux/usb/otg.h
> > +++ b/include/linux/usb/otg.h
> > @@ -14,7 +14,6 @@
> > struct usb_otg {
> > u8 default_a;
> >
> > - struct usb_phy *phy;
> > struct usb_bus *host;
> > struct usb_gadget *gadget;
> >
> > diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index
> > ac7d791..b732541 100644
> > --- a/include/linux/usb/phy.h
> > +++ b/include/linux/usb/phy.h
> > @@ -79,8 +79,6 @@ struct usb_phy {
> > enum usb_phy_type type;
> > enum usb_phy_events last_event;
> >
> > - struct usb_otg *otg;
> > -
> > struct device *io_dev;
> > struct usb_phy_io_ops *io_ops;
> > void __iomem *io_priv;
>
> Where does the ci->otg setup occurs? It seems to me it's never filled.
>
Currently, only two fields at struct usb_otg are needed for chipidea, they are:
struct usb_bus *host;
enum usb_otg_state state;
They are initialized at:
ci_hdrc_otg_fsm_init and host_start.
Peter
^ permalink raw reply [flat|nested] 25+ messages in thread
* Re: [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework in ChipIdea
2014-07-25 8:33 ` Peter Chen
@ 2014-07-25 8:38 ` Antoine Ténart
0 siblings, 0 replies; 25+ messages in thread
From: Antoine Ténart @ 2014-07-25 8:38 UTC (permalink / raw)
To: Peter Chen
Cc: Antoine Ténart, balbi, gregkh, kishon, stern,
sergei.shtylyov, yoshihiro.shimoda.uh, alexandre.belloni,
thomas.petazzoni, zmxu, jszhang, linux-usb, linux-kernel
On Fri, Jul 25, 2014 at 08:33:28AM +0000, Peter Chen wrote:
>
> > > >
> > >
> > > Just add OTG member into ci_hdrc structure, see below patch
> > >
> > > diff --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h
> > > index 9563cb5..186fb3f 100644
> > > --- a/drivers/usb/chipidea/ci.h
> > > +++ b/drivers/usb/chipidea/ci.h
> > > @@ -207,6 +207,7 @@ struct ci_hdrc {
> > > bool id_event;
> > > bool b_sess_valid_event;
> > > bool imx28_write_fix;
> > > + struct usb_otg otg;
> > > };
> > >
> > > static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci) diff
> > > --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> > > index a93d950..70d7fe2 100644
> > > --- a/drivers/usb/chipidea/host.c
> > > +++ b/drivers/usb/chipidea/host.c
> > > @@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
> > > if (ret) {
> > > goto disable_reg;
> > > } else {
> > > - struct usb_otg *otg = ci->transceiver->otg;
> > > + struct usb_otg *otg = &ci->otg;
> > >
> > > ci->hcd = hcd;
> > > if (otg) {
> > > diff --git a/drivers/usb/chipidea/otg_fsm.c
> > > b/drivers/usb/chipidea/otg_fsm.c index 8cb2508..fc8847e 100644
> > > --- a/drivers/usb/chipidea/otg_fsm.c
> > > +++ b/drivers/usb/chipidea/otg_fsm.c
> > > @@ -778,20 +778,8 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
> > > int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci) {
> > > int retval = 0;
> > > - struct usb_otg *otg;
> > >
> > > - otg = devm_kzalloc(ci->dev,
> > > - sizeof(struct usb_otg), GFP_KERNEL);
> > > - if (!otg) {
> > > - dev_err(ci->dev,
> > > - "Failed to allocate usb_otg structure for ci hdrc
> > otg!\n");
> > > - return -ENOMEM;
> > > - }
> > > -
> > > - otg->phy = ci->transceiver;
> > > - otg->gadget = &ci->gadget;
> > > - ci->fsm.otg = otg;
> > > - ci->transceiver->otg = ci->fsm.otg;
> > > + ci->fsm.otg = &ci->otg;
> > > ci->fsm.power_up = 1;
> > > ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> > > ci->fsm.otg->state = OTG_STATE_UNDEFINED; diff --git
> > > a/include/linux/usb/otg.h b/include/linux/usb/otg.h index
> > > 33d3480..b2f7587 100644
> > > --- a/include/linux/usb/otg.h
> > > +++ b/include/linux/usb/otg.h
> > > @@ -14,7 +14,6 @@
> > > struct usb_otg {
> > > u8 default_a;
> > >
> > > - struct usb_phy *phy;
> > > struct usb_bus *host;
> > > struct usb_gadget *gadget;
> > >
> > > diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index
> > > ac7d791..b732541 100644
> > > --- a/include/linux/usb/phy.h
> > > +++ b/include/linux/usb/phy.h
> > > @@ -79,8 +79,6 @@ struct usb_phy {
> > > enum usb_phy_type type;
> > > enum usb_phy_events last_event;
> > >
> > > - struct usb_otg *otg;
> > > -
> > > struct device *io_dev;
> > > struct usb_phy_io_ops *io_ops;
> > > void __iomem *io_priv;
> > > b29397@shlinux1:~/work/projects/upstream/usb/usb$ git diff > a.diff
> > > b29397@shlinux1:~/work/projects/upstream/usb/usb$ cat a.diff diff
> > > --git a/drivers/usb/chipidea/ci.h b/drivers/usb/chipidea/ci.h index
> > > 9563cb5..186fb3f 100644
> > > --- a/drivers/usb/chipidea/ci.h
> > > +++ b/drivers/usb/chipidea/ci.h
> > > @@ -207,6 +207,7 @@ struct ci_hdrc {
> > > bool id_event;
> > > bool b_sess_valid_event;
> > > bool imx28_write_fix;
> > > + struct usb_otg otg;
> > > };
> > >
> > > static inline struct ci_role_driver *ci_role(struct ci_hdrc *ci) diff
> > > --git a/drivers/usb/chipidea/host.c b/drivers/usb/chipidea/host.c
> > > index a93d950..70d7fe2 100644
> > > --- a/drivers/usb/chipidea/host.c
> > > +++ b/drivers/usb/chipidea/host.c
> > > @@ -85,7 +85,7 @@ static int host_start(struct ci_hdrc *ci)
> > > if (ret) {
> > > goto disable_reg;
> > > } else {
> > > - struct usb_otg *otg = ci->transceiver->otg;
> > > + struct usb_otg *otg = &ci->otg;
> > >
> > > ci->hcd = hcd;
> > > if (otg) {
> > > diff --git a/drivers/usb/chipidea/otg_fsm.c
> > > b/drivers/usb/chipidea/otg_fsm.c index 8cb2508..fc8847e 100644
> > > --- a/drivers/usb/chipidea/otg_fsm.c
> > > +++ b/drivers/usb/chipidea/otg_fsm.c
> > > @@ -778,20 +778,8 @@ void ci_hdrc_otg_fsm_start(struct ci_hdrc *ci)
> > > int ci_hdrc_otg_fsm_init(struct ci_hdrc *ci) {
> > > int retval = 0;
> > > - struct usb_otg *otg;
> > >
> > > - otg = devm_kzalloc(ci->dev,
> > > - sizeof(struct usb_otg), GFP_KERNEL);
> > > - if (!otg) {
> > > - dev_err(ci->dev,
> > > - "Failed to allocate usb_otg structure for ci hdrc otg!\n");
> > > - return -ENOMEM;
> > > - }
> > > -
> > > - otg->phy = ci->transceiver;
> > > - otg->gadget = &ci->gadget;
> > > - ci->fsm.otg = otg;
> > > - ci->transceiver->otg = ci->fsm.otg;
> > > + ci->fsm.otg = &ci->otg;
> > > ci->fsm.power_up = 1;
> > > ci->fsm.id = hw_read_otgsc(ci, OTGSC_ID) ? 1 : 0;
> > > ci->fsm.otg->state = OTG_STATE_UNDEFINED; diff --git
> > > a/include/linux/usb/otg.h b/include/linux/usb/otg.h index
> > > 33d3480..b2f7587 100644
> > > --- a/include/linux/usb/otg.h
> > > +++ b/include/linux/usb/otg.h
> > > @@ -14,7 +14,6 @@
> > > struct usb_otg {
> > > u8 default_a;
> > >
> > > - struct usb_phy *phy;
> > > struct usb_bus *host;
> > > struct usb_gadget *gadget;
> > >
> > > diff --git a/include/linux/usb/phy.h b/include/linux/usb/phy.h index
> > > ac7d791..b732541 100644
> > > --- a/include/linux/usb/phy.h
> > > +++ b/include/linux/usb/phy.h
> > > @@ -79,8 +79,6 @@ struct usb_phy {
> > > enum usb_phy_type type;
> > > enum usb_phy_events last_event;
> > >
> > > - struct usb_otg *otg;
> > > -
> > > struct device *io_dev;
> > > struct usb_phy_io_ops *io_ops;
> > > void __iomem *io_priv;
> >
> > Where does the ci->otg setup occurs? It seems to me it's never filled.
> >
>
> Currently, only two fields at struct usb_otg are needed for chipidea, they are:
> struct usb_bus *host;
> enum usb_otg_state state;
>
> They are initialized at:
> ci_hdrc_otg_fsm_init and host_start.
Ok, I get it. I'll update and add an OTG member into the ci_hdrc
structure.
Thanks!
Antoine
--
Antoine Ténart, Free Electrons
Embedded Linux, Kernel and Android engineering
http://free-electrons.com
^ permalink raw reply [flat|nested] 25+ messages in thread
end of thread, other threads:[~2014-07-25 8:38 UTC | newest]
Thread overview: 25+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2014-07-15 14:39 [PATCH v2 0/8] usb: add support for the generic PHY framework Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 1/8] usb: move the OTG state from the USB PHY to the OTG structure Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 2/8] usb: rename phy to usb_phy in OTG Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 3/8] usb: add support to the generic PHY framework " Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 4/8] usb: rename phy to usb_phy in HCD Antoine Ténart
2014-07-15 15:55 ` Sergei Shtylyov
2014-07-16 15:09 ` Felipe Balbi
2014-07-16 17:02 ` Sergei Shtylyov
2014-07-15 14:39 ` [PATCH v2 5/8] usb: rename gen_phy to phy " Antoine Ténart
2014-07-15 14:39 ` [PATCH v2 6/8] usb: allow to supply the PHY in the drivers when using HCD Antoine Ténart
2014-07-23 10:59 ` Peter Chen
2014-07-15 14:39 ` [PATCH v2 7/8] usb: rename transceiver and phy to usb_phy in ChipIdea Antoine Ténart
2014-07-24 11:12 ` Peter Chen
2014-07-15 14:39 ` [PATCH v2 8/8] usb: chipidea: add support to the generic PHY framework " Antoine Ténart
2014-07-24 11:39 ` Peter Chen
2014-07-24 12:25 ` Antoine Ténart
2014-07-25 0:34 ` Peter Chen
2014-07-25 8:13 ` Antoine Ténart
2014-07-25 8:33 ` Peter Chen
2014-07-25 8:38 ` Antoine Ténart
2014-07-15 15:58 ` [PATCH v2 0/8] usb: add support for the generic PHY framework Alan Stern
2014-07-16 17:45 ` Felipe Balbi
2014-07-17 8:03 ` Antoine Ténart
2014-07-17 17:23 ` Felipe Balbi
2014-07-23 11:36 ` Peter Chen
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).