| Message ID | 1435060743-5511-8-git-send-email-kishon@ti.com (mailing list archive) |
|---|---|
| State | New, archived |
| Headers | show |
On Tue, 23 Jun 2015 17:28:52 +0530 Kishon Vijay Abraham I <kishon@ti.com> wrote: > Deprecate using phy-omap-control driver to write to the mailbox register > and start using *syscon* framework to do the same. > > Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> > --- > Documentation/devicetree/bindings/usb/omap-usb.txt | 7 +- > drivers/usb/musb/omap2430.c | 118 ++++++++++++++++---- > 2 files changed, 102 insertions(+), 23 deletions(-) > > diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt > index 38d9bb8..c001306 100644 > --- a/Documentation/devicetree/bindings/usb/omap-usb.txt > +++ b/Documentation/devicetree/bindings/usb/omap-usb.txt > @@ -20,10 +20,15 @@ OMAP MUSB GLUE > - phy-names : the names of the PHY corresponding to the PHYs present in the > *phy* phandle. > > -Optional properties: > +Optional Properties: > +Deprecated properties: > - ctrl-module : phandle of the control module this glue uses to write to > mailbox > > +Recommended properies: > + - syscon-otghs : phandle/offset pair. Phandle to the system control module and the > + register offset of the mailbox. > + > SOC specific device node entry > usb_otg_hs: usb_otg_hs@4a0ab000 { > compatible = "ti,omap4-musb"; > diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c > index cc752d8..bcd6d1e 100644 > --- a/drivers/usb/musb/omap2430.c > +++ b/drivers/usb/musb/omap2430.c > @@ -39,16 +39,27 @@ > #include <linux/usb/musb-omap.h> > #include <linux/phy/omap_control_phy.h> > #include <linux/of_platform.h> > +#include <linux/regmap.h> > +#include <linux/mfd/syscon.h> > > #include "musb_core.h" > #include "omap2430.h" > > +#define OMAP2430_MUSB_MODE_MASK 0x1f > +#define OMAP2430_MUSB_AVALID (0x1 << 0) > +#define OMAP2430_MUSB_BVALID (0x1 << 1) > +#define OMAP2430_MUSB_VBUSVALID (0x1 << 2) > +#define OMAP2430_MUSB_SESSEND (0x1 << 3) > +#define OMAP2430_MUSB_IDDIG (0x1 << 4) > + > struct omap2430_glue { > struct device *dev; > struct platform_device *musb; > enum omap_musb_vbus_id_status status; > struct work_struct omap_musb_mailbox_work; > struct device *control_otghs; > + struct regmap *syscon_otghs; /* ctrl. reg. acces */ > + unsigned int otghs_reg; /* otghs reg. index within syscon */ > }; > #define glue_to_musb(g) platform_get_drvdata(g->musb) > > @@ -253,6 +264,47 @@ void omap_musb_mailbox(enum omap_musb_vbus_id_status status) > } > EXPORT_SYMBOL_GPL(omap_musb_mailbox); > > +static void omap2430_musb_set_usbmode(struct omap2430_glue *glue, > + enum omap_control_usb_mode mode) > +{ > + u32 val; > + int ret; > + > + if (glue->syscon_otghs) { > + switch (mode) { > + case USB_MODE_HOST: > + val = OMAP2430_MUSB_AVALID | OMAP2430_MUSB_VBUSVALID; > + break; > + > + case USB_MODE_DEVICE: > + val = OMAP2430_MUSB_IDDIG | OMAP2430_MUSB_AVALID | > + OMAP2430_MUSB_VBUSVALID; > + break; > + > + case USB_MODE_DISCONNECT: > + val = OMAP2430_MUSB_IDDIG | OMAP2430_MUSB_SESSEND; > + break; > + > + default: > + dev_dbg(glue->dev, "Invalid mode\n"); > + goto err_regmap_update; > + } > + > + ret = regmap_update_bits(glue->syscon_otghs, > + glue->otghs_reg, > + OMAP2430_MUSB_MODE_MASK, val); > + if (ret < 0) > + goto err_regmap_update; > + } else { > + omap_control_usb_set_mode(glue->control_otghs, mode); > + } > + > + return; > + > +err_regmap_update: > + dev_err(glue->dev, "Failed to set mode to %d\n", mode); > +} > + > static void omap_musb_set_mailbox(struct omap2430_glue *glue) > { > struct musb *musb = glue_to_musb(glue); > @@ -270,8 +322,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) > musb->xceiv->last_event = USB_EVENT_ID; > if (musb->gadget_driver) { > pm_runtime_get_sync(dev); > - omap_control_usb_set_mode(glue->control_otghs, > - USB_MODE_HOST); > + omap2430_musb_set_usbmode(glue, USB_MODE_HOST); > omap2430_musb_set_vbus(musb, 1); > } > break; > @@ -284,7 +335,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) > musb->xceiv->last_event = USB_EVENT_VBUS; > if (musb->gadget_driver) > pm_runtime_get_sync(dev); > - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); > + omap2430_musb_set_usbmode(glue, USB_MODE_DEVICE); > break; > > case OMAP_MUSB_ID_FLOAT: > @@ -301,8 +352,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) > if (data->interface_type == MUSB_INTERFACE_UTMI) > otg_set_vbus(musb->xceiv->otg, 0); > > - omap_control_usb_set_mode(glue->control_otghs, > - USB_MODE_DISCONNECT); > + omap2430_musb_set_usbmode(glue, USB_MODE_DISCONNECT); > break; > default: > dev_dbg(dev, "ID float\n"); > @@ -444,7 +494,7 @@ static void omap2430_musb_enable(struct musb *musb) > switch (glue->status) { > > case OMAP_MUSB_ID_GROUND: > - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_HOST); > + omap2430_musb_set_usbmode(glue, USB_MODE_HOST); > if (data->interface_type != MUSB_INTERFACE_UTMI) > break; > devctl = musb_readb(musb->mregs, MUSB_DEVCTL); > @@ -463,7 +513,7 @@ static void omap2430_musb_enable(struct musb *musb) > break; > > case OMAP_MUSB_VBUS_VALID: > - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); > + omap2430_musb_set_usbmode(glue, USB_MODE_DEVICE); > break; > > default: > @@ -477,8 +527,7 @@ static void omap2430_musb_disable(struct musb *musb) > struct omap2430_glue *glue = dev_get_drvdata(dev->parent); > > if (glue->status != OMAP_MUSB_UNKNOWN) > - omap_control_usb_set_mode(glue->control_otghs, > - USB_MODE_DISCONNECT); > + omap2430_musb_set_usbmode(glue, USB_MODE_DISCONNECT); > } > > static int omap2430_musb_exit(struct musb *musb) > @@ -507,6 +556,40 @@ static const struct musb_platform_ops omap2430_ops = { > > static u64 omap2430_dmamask = DMA_BIT_MASK(32); > > +static int omap2430_get_control(struct omap2430_glue *glue, > + struct device_node *np) > +{ > + struct device_node *control_node; > + struct platform_device *control_pdev; > + > + glue->syscon_otghs = syscon_regmap_lookup_by_phandle(np, > + "syscon-otghs"); > + if (IS_ERR(glue->syscon_otghs)) { > + dev_info(glue->dev, "can't get syscon, using control device\n"); dev_dbg(). > + glue->syscon_otghs = NULL; > + > + control_node = of_parse_phandle(np, "ctrl-module", 0); > + if (control_node) { > + control_pdev = of_find_device_by_node(control_node); > + if (!control_pdev) { > + dev_err(glue->dev, > + "Failed to get control device\n"); > + return -EINVAL; > + } > + glue->control_otghs = &control_pdev->dev; > + } > + } else { > + if (of_property_read_u32_index(np, "syscon-otghs", 1, > + &glue->otghs_reg)) { > + dev_err(glue->dev, > + "couldn't get otghs reg. offset\n"); > + return -EINVAL; > + } > + } > + > + return 0; > +} > + > static int omap2430_probe(struct platform_device *pdev) > { > struct resource musb_resources[3]; > @@ -538,9 +621,6 @@ static int omap2430_probe(struct platform_device *pdev) > glue->control_otghs = ERR_PTR(-ENODEV); > > if (np) { > - struct device_node *control_node; > - struct platform_device *control_pdev; > - > pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); > if (!pdata) > goto err2; > @@ -567,16 +647,10 @@ static int omap2430_probe(struct platform_device *pdev) > pdata->board_data = data; > pdata->config = config; > > - control_node = of_parse_phandle(np, "ctrl-module", 0); > - if (control_node) { > - control_pdev = of_find_device_by_node(control_node); > - if (!control_pdev) { > - dev_err(&pdev->dev, "Failed to get control device\n"); > - ret = -EINVAL; > - goto err2; > - } > - glue->control_otghs = &control_pdev->dev; > - } > + ret = omap2430_get_control(glue, np); > + if (ret) > + goto err2; > + > } > pdata->platform_ops = &omap2430_ops; > cheers, -roger -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
* Kishon Vijay Abraham I <kishon@ti.com> [150623 05:02]: > Deprecate using phy-omap-control driver to write to the mailbox register > and start using *syscon* framework to do the same. All this stuff needs to go to some generic syscon USB phy driver. Let's not start adding phy specific stuff to a USB driver. Regards, Tony -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi Tony, On Wednesday 24 June 2015 05:19 PM, Tony Lindgren wrote: > * Kishon Vijay Abraham I <kishon@ti.com> [150623 05:02]: >> Deprecate using phy-omap-control driver to write to the mailbox register >> and start using *syscon* framework to do the same. > > All this stuff needs to go to some generic syscon USB phy > driver. Let's not start adding phy specific stuff to a USB > driver. Mailbox register is actually part of OMAP USB glue that should be written in order to inform the usbmode to the MUSB core. Thanks Kishon -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Hi, On Wednesday 24 June 2015 05:09 PM, Roger Quadros wrote: > On Tue, 23 Jun 2015 17:28:52 +0530 > Kishon Vijay Abraham I <kishon@ti.com> wrote: > >> Deprecate using phy-omap-control driver to write to the mailbox register >> and start using *syscon* framework to do the same. >> >> Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> >> --- >> Documentation/devicetree/bindings/usb/omap-usb.txt | 7 +- >> drivers/usb/musb/omap2430.c | 118 ++++++++++++++++---- >> 2 files changed, 102 insertions(+), 23 deletions(-) >> >> diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt >> index 38d9bb8..c001306 100644 >> --- a/Documentation/devicetree/bindings/usb/omap-usb.txt >> +++ b/Documentation/devicetree/bindings/usb/omap-usb.txt >> @@ -20,10 +20,15 @@ OMAP MUSB GLUE >> - phy-names : the names of the PHY corresponding to the PHYs present in the >> *phy* phandle. >> >> -Optional properties: >> +Optional Properties: >> +Deprecated properties: >> - ctrl-module : phandle of the control module this glue uses to write to >> mailbox >> >> +Recommended properies: >> + - syscon-otghs : phandle/offset pair. Phandle to the system control module and the >> + register offset of the mailbox. >> + >> SOC specific device node entry >> usb_otg_hs: usb_otg_hs@4a0ab000 { >> compatible = "ti,omap4-musb"; >> diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c >> index cc752d8..bcd6d1e 100644 >> --- a/drivers/usb/musb/omap2430.c >> +++ b/drivers/usb/musb/omap2430.c >> @@ -39,16 +39,27 @@ >> #include <linux/usb/musb-omap.h> >> #include <linux/phy/omap_control_phy.h> >> #include <linux/of_platform.h> >> +#include <linux/regmap.h> >> +#include <linux/mfd/syscon.h> >> >> #include "musb_core.h" >> #include "omap2430.h" >> >> +#define OMAP2430_MUSB_MODE_MASK 0x1f >> +#define OMAP2430_MUSB_AVALID (0x1 << 0) >> +#define OMAP2430_MUSB_BVALID (0x1 << 1) >> +#define OMAP2430_MUSB_VBUSVALID (0x1 << 2) >> +#define OMAP2430_MUSB_SESSEND (0x1 << 3) >> +#define OMAP2430_MUSB_IDDIG (0x1 << 4) >> + >> struct omap2430_glue { >> struct device *dev; >> struct platform_device *musb; >> enum omap_musb_vbus_id_status status; >> struct work_struct omap_musb_mailbox_work; >> struct device *control_otghs; >> + struct regmap *syscon_otghs; /* ctrl. reg. acces */ >> + unsigned int otghs_reg; /* otghs reg. index within syscon */ >> }; >> #define glue_to_musb(g) platform_get_drvdata(g->musb) >> >> @@ -253,6 +264,47 @@ void omap_musb_mailbox(enum omap_musb_vbus_id_status status) >> } >> EXPORT_SYMBOL_GPL(omap_musb_mailbox); >> >> +static void omap2430_musb_set_usbmode(struct omap2430_glue *glue, >> + enum omap_control_usb_mode mode) >> +{ >> + u32 val; >> + int ret; >> + >> + if (glue->syscon_otghs) { >> + switch (mode) { >> + case USB_MODE_HOST: >> + val = OMAP2430_MUSB_AVALID | OMAP2430_MUSB_VBUSVALID; >> + break; >> + >> + case USB_MODE_DEVICE: >> + val = OMAP2430_MUSB_IDDIG | OMAP2430_MUSB_AVALID | >> + OMAP2430_MUSB_VBUSVALID; >> + break; >> + >> + case USB_MODE_DISCONNECT: >> + val = OMAP2430_MUSB_IDDIG | OMAP2430_MUSB_SESSEND; >> + break; >> + >> + default: >> + dev_dbg(glue->dev, "Invalid mode\n"); >> + goto err_regmap_update; >> + } >> + >> + ret = regmap_update_bits(glue->syscon_otghs, >> + glue->otghs_reg, >> + OMAP2430_MUSB_MODE_MASK, val); >> + if (ret < 0) >> + goto err_regmap_update; >> + } else { >> + omap_control_usb_set_mode(glue->control_otghs, mode); >> + } >> + >> + return; >> + >> +err_regmap_update: >> + dev_err(glue->dev, "Failed to set mode to %d\n", mode); >> +} >> + >> static void omap_musb_set_mailbox(struct omap2430_glue *glue) >> { >> struct musb *musb = glue_to_musb(glue); >> @@ -270,8 +322,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) >> musb->xceiv->last_event = USB_EVENT_ID; >> if (musb->gadget_driver) { >> pm_runtime_get_sync(dev); >> - omap_control_usb_set_mode(glue->control_otghs, >> - USB_MODE_HOST); >> + omap2430_musb_set_usbmode(glue, USB_MODE_HOST); >> omap2430_musb_set_vbus(musb, 1); >> } >> break; >> @@ -284,7 +335,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) >> musb->xceiv->last_event = USB_EVENT_VBUS; >> if (musb->gadget_driver) >> pm_runtime_get_sync(dev); >> - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); >> + omap2430_musb_set_usbmode(glue, USB_MODE_DEVICE); >> break; >> >> case OMAP_MUSB_ID_FLOAT: >> @@ -301,8 +352,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) >> if (data->interface_type == MUSB_INTERFACE_UTMI) >> otg_set_vbus(musb->xceiv->otg, 0); >> >> - omap_control_usb_set_mode(glue->control_otghs, >> - USB_MODE_DISCONNECT); >> + omap2430_musb_set_usbmode(glue, USB_MODE_DISCONNECT); >> break; >> default: >> dev_dbg(dev, "ID float\n"); >> @@ -444,7 +494,7 @@ static void omap2430_musb_enable(struct musb *musb) >> switch (glue->status) { >> >> case OMAP_MUSB_ID_GROUND: >> - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_HOST); >> + omap2430_musb_set_usbmode(glue, USB_MODE_HOST); >> if (data->interface_type != MUSB_INTERFACE_UTMI) >> break; >> devctl = musb_readb(musb->mregs, MUSB_DEVCTL); >> @@ -463,7 +513,7 @@ static void omap2430_musb_enable(struct musb *musb) >> break; >> >> case OMAP_MUSB_VBUS_VALID: >> - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); >> + omap2430_musb_set_usbmode(glue, USB_MODE_DEVICE); >> break; >> >> default: >> @@ -477,8 +527,7 @@ static void omap2430_musb_disable(struct musb *musb) >> struct omap2430_glue *glue = dev_get_drvdata(dev->parent); >> >> if (glue->status != OMAP_MUSB_UNKNOWN) >> - omap_control_usb_set_mode(glue->control_otghs, >> - USB_MODE_DISCONNECT); >> + omap2430_musb_set_usbmode(glue, USB_MODE_DISCONNECT); >> } >> >> static int omap2430_musb_exit(struct musb *musb) >> @@ -507,6 +556,40 @@ static const struct musb_platform_ops omap2430_ops = { >> >> static u64 omap2430_dmamask = DMA_BIT_MASK(32); >> >> +static int omap2430_get_control(struct omap2430_glue *glue, >> + struct device_node *np) >> +{ >> + struct device_node *control_node; >> + struct platform_device *control_pdev; >> + >> + glue->syscon_otghs = syscon_regmap_lookup_by_phandle(np, >> + "syscon-otghs"); >> + if (IS_ERR(glue->syscon_otghs)) { >> + dev_info(glue->dev, "can't get syscon, using control device\n"); > > dev_dbg(). Alright. Thanks Kishon -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
diff --git a/Documentation/devicetree/bindings/usb/omap-usb.txt b/Documentation/devicetree/bindings/usb/omap-usb.txt index 38d9bb8..c001306 100644 --- a/Documentation/devicetree/bindings/usb/omap-usb.txt +++ b/Documentation/devicetree/bindings/usb/omap-usb.txt @@ -20,10 +20,15 @@ OMAP MUSB GLUE - phy-names : the names of the PHY corresponding to the PHYs present in the *phy* phandle. -Optional properties: +Optional Properties: +Deprecated properties: - ctrl-module : phandle of the control module this glue uses to write to mailbox +Recommended properies: + - syscon-otghs : phandle/offset pair. Phandle to the system control module and the + register offset of the mailbox. + SOC specific device node entry usb_otg_hs: usb_otg_hs@4a0ab000 { compatible = "ti,omap4-musb"; diff --git a/drivers/usb/musb/omap2430.c b/drivers/usb/musb/omap2430.c index cc752d8..bcd6d1e 100644 --- a/drivers/usb/musb/omap2430.c +++ b/drivers/usb/musb/omap2430.c @@ -39,16 +39,27 @@ #include <linux/usb/musb-omap.h> #include <linux/phy/omap_control_phy.h> #include <linux/of_platform.h> +#include <linux/regmap.h> +#include <linux/mfd/syscon.h> #include "musb_core.h" #include "omap2430.h" +#define OMAP2430_MUSB_MODE_MASK 0x1f +#define OMAP2430_MUSB_AVALID (0x1 << 0) +#define OMAP2430_MUSB_BVALID (0x1 << 1) +#define OMAP2430_MUSB_VBUSVALID (0x1 << 2) +#define OMAP2430_MUSB_SESSEND (0x1 << 3) +#define OMAP2430_MUSB_IDDIG (0x1 << 4) + struct omap2430_glue { struct device *dev; struct platform_device *musb; enum omap_musb_vbus_id_status status; struct work_struct omap_musb_mailbox_work; struct device *control_otghs; + struct regmap *syscon_otghs; /* ctrl. reg. acces */ + unsigned int otghs_reg; /* otghs reg. index within syscon */ }; #define glue_to_musb(g) platform_get_drvdata(g->musb) @@ -253,6 +264,47 @@ void omap_musb_mailbox(enum omap_musb_vbus_id_status status) } EXPORT_SYMBOL_GPL(omap_musb_mailbox); +static void omap2430_musb_set_usbmode(struct omap2430_glue *glue, + enum omap_control_usb_mode mode) +{ + u32 val; + int ret; + + if (glue->syscon_otghs) { + switch (mode) { + case USB_MODE_HOST: + val = OMAP2430_MUSB_AVALID | OMAP2430_MUSB_VBUSVALID; + break; + + case USB_MODE_DEVICE: + val = OMAP2430_MUSB_IDDIG | OMAP2430_MUSB_AVALID | + OMAP2430_MUSB_VBUSVALID; + break; + + case USB_MODE_DISCONNECT: + val = OMAP2430_MUSB_IDDIG | OMAP2430_MUSB_SESSEND; + break; + + default: + dev_dbg(glue->dev, "Invalid mode\n"); + goto err_regmap_update; + } + + ret = regmap_update_bits(glue->syscon_otghs, + glue->otghs_reg, + OMAP2430_MUSB_MODE_MASK, val); + if (ret < 0) + goto err_regmap_update; + } else { + omap_control_usb_set_mode(glue->control_otghs, mode); + } + + return; + +err_regmap_update: + dev_err(glue->dev, "Failed to set mode to %d\n", mode); +} + static void omap_musb_set_mailbox(struct omap2430_glue *glue) { struct musb *musb = glue_to_musb(glue); @@ -270,8 +322,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) musb->xceiv->last_event = USB_EVENT_ID; if (musb->gadget_driver) { pm_runtime_get_sync(dev); - omap_control_usb_set_mode(glue->control_otghs, - USB_MODE_HOST); + omap2430_musb_set_usbmode(glue, USB_MODE_HOST); omap2430_musb_set_vbus(musb, 1); } break; @@ -284,7 +335,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) musb->xceiv->last_event = USB_EVENT_VBUS; if (musb->gadget_driver) pm_runtime_get_sync(dev); - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); + omap2430_musb_set_usbmode(glue, USB_MODE_DEVICE); break; case OMAP_MUSB_ID_FLOAT: @@ -301,8 +352,7 @@ static void omap_musb_set_mailbox(struct omap2430_glue *glue) if (data->interface_type == MUSB_INTERFACE_UTMI) otg_set_vbus(musb->xceiv->otg, 0); - omap_control_usb_set_mode(glue->control_otghs, - USB_MODE_DISCONNECT); + omap2430_musb_set_usbmode(glue, USB_MODE_DISCONNECT); break; default: dev_dbg(dev, "ID float\n"); @@ -444,7 +494,7 @@ static void omap2430_musb_enable(struct musb *musb) switch (glue->status) { case OMAP_MUSB_ID_GROUND: - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_HOST); + omap2430_musb_set_usbmode(glue, USB_MODE_HOST); if (data->interface_type != MUSB_INTERFACE_UTMI) break; devctl = musb_readb(musb->mregs, MUSB_DEVCTL); @@ -463,7 +513,7 @@ static void omap2430_musb_enable(struct musb *musb) break; case OMAP_MUSB_VBUS_VALID: - omap_control_usb_set_mode(glue->control_otghs, USB_MODE_DEVICE); + omap2430_musb_set_usbmode(glue, USB_MODE_DEVICE); break; default: @@ -477,8 +527,7 @@ static void omap2430_musb_disable(struct musb *musb) struct omap2430_glue *glue = dev_get_drvdata(dev->parent); if (glue->status != OMAP_MUSB_UNKNOWN) - omap_control_usb_set_mode(glue->control_otghs, - USB_MODE_DISCONNECT); + omap2430_musb_set_usbmode(glue, USB_MODE_DISCONNECT); } static int omap2430_musb_exit(struct musb *musb) @@ -507,6 +556,40 @@ static const struct musb_platform_ops omap2430_ops = { static u64 omap2430_dmamask = DMA_BIT_MASK(32); +static int omap2430_get_control(struct omap2430_glue *glue, + struct device_node *np) +{ + struct device_node *control_node; + struct platform_device *control_pdev; + + glue->syscon_otghs = syscon_regmap_lookup_by_phandle(np, + "syscon-otghs"); + if (IS_ERR(glue->syscon_otghs)) { + dev_info(glue->dev, "can't get syscon, using control device\n"); + glue->syscon_otghs = NULL; + + control_node = of_parse_phandle(np, "ctrl-module", 0); + if (control_node) { + control_pdev = of_find_device_by_node(control_node); + if (!control_pdev) { + dev_err(glue->dev, + "Failed to get control device\n"); + return -EINVAL; + } + glue->control_otghs = &control_pdev->dev; + } + } else { + if (of_property_read_u32_index(np, "syscon-otghs", 1, + &glue->otghs_reg)) { + dev_err(glue->dev, + "couldn't get otghs reg. offset\n"); + return -EINVAL; + } + } + + return 0; +} + static int omap2430_probe(struct platform_device *pdev) { struct resource musb_resources[3]; @@ -538,9 +621,6 @@ static int omap2430_probe(struct platform_device *pdev) glue->control_otghs = ERR_PTR(-ENODEV); if (np) { - struct device_node *control_node; - struct platform_device *control_pdev; - pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); if (!pdata) goto err2; @@ -567,16 +647,10 @@ static int omap2430_probe(struct platform_device *pdev) pdata->board_data = data; pdata->config = config; - control_node = of_parse_phandle(np, "ctrl-module", 0); - if (control_node) { - control_pdev = of_find_device_by_node(control_node); - if (!control_pdev) { - dev_err(&pdev->dev, "Failed to get control device\n"); - ret = -EINVAL; - goto err2; - } - glue->control_otghs = &control_pdev->dev; - } + ret = omap2430_get_control(glue, np); + if (ret) + goto err2; + } pdata->platform_ops = &omap2430_ops;
Deprecate using phy-omap-control driver to write to the mailbox register and start using *syscon* framework to do the same. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> --- Documentation/devicetree/bindings/usb/omap-usb.txt | 7 +- drivers/usb/musb/omap2430.c | 118 ++++++++++++++++---- 2 files changed, 102 insertions(+), 23 deletions(-)