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WSL2-Linux-Kernel
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usb: dwc3: adapt to use dr_mode device tree helper 

This patch adapts the dwc3 to use the device tree helper
"of_usb_get_dr_mode" for the mode of operation of the dwc3 instance
being probed.

[ balbi@ti.com : make of_usb_get_dr_mode() conditional on
	dev->of_node and let pdata pass dr_mode too ]

Reviewed-by: Roger Quadros <rogerq@ti.com>
Signed-off-by: Ruchika Kharwar <ruchika@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
This commit is contained in:
Ruchika Kharwar 2013-07-06 07:52:49 -05:00 коммит произвёл Felipe Balbi
Родитель 51e563e3c1
Коммит a45c82b84c
3 изменённых файлов: 43 добавлений и 43 удалений
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73
drivers/usb/dwc3/core.c
Просмотреть файл

@ -37,6 +37,7 @@
#include <linux/usb/ch9.h> #include <linux/usb/ch9.h>
#include <linux/usb/gadget.h> #include <linux/usb/gadget.h>
#include <linux/usb/of.h> #include <linux/usb/of.h>
#include <linux/usb/otg.h>
#include "platform_data.h" #include "platform_data.h"
#include "core.h" #include "core.h"
@ -359,8 +360,6 @@ static int dwc3_probe(struct platform_device *pdev)
void __iomem *regs; void __iomem *regs;
void *mem; void *mem;
u8 mode;
mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL); mem = devm_kzalloc(dev, sizeof(*dwc) + DWC3_ALIGN_MASK, GFP_KERNEL);
if (!mem) { if (!mem) {
dev_err(dev, "not enough memory\n"); dev_err(dev, "not enough memory\n");
@ -415,6 +414,7 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->usb3_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 1); dwc->usb3_phy = devm_usb_get_phy_by_phandle(dev, "usb-phy", 1);
dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize"); dwc->needs_fifo_resize = of_property_read_bool(node, "tx-fifo-resize");
dwc->dr_mode = of_usb_get_dr_mode(node);
} else { } else {
dwc->maximum_speed = pdata->maximum_speed; dwc->maximum_speed = pdata->maximum_speed;
@ -422,6 +422,7 @@ static int dwc3_probe(struct platform_device *pdev)
dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3); dwc->usb3_phy = devm_usb_get_phy(dev, USB_PHY_TYPE_USB3);
dwc->needs_fifo_resize = pdata->tx_fifo_resize; dwc->needs_fifo_resize = pdata->tx_fifo_resize;
dwc->dr_mode = pdata->dr_mode;
} }
/* default to superspeed if no maximum_speed passed */ /* default to superspeed if no maximum_speed passed */
@ -498,14 +499,15 @@ static int dwc3_probe(struct platform_device *pdev)
} }
if (IS_ENABLED(CONFIG_USB_DWC3_HOST)) if (IS_ENABLED(CONFIG_USB_DWC3_HOST))
mode = DWC3_MODE_HOST; dwc->dr_mode = USB_DR_MODE_HOST;
else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET)) else if (IS_ENABLED(CONFIG_USB_DWC3_GADGET))
mode = DWC3_MODE_DEVICE; dwc->dr_mode = USB_DR_MODE_PERIPHERAL;
else
mode = DWC3_MODE_DRD;
switch (mode) { if (dwc->dr_mode == USB_DR_MODE_UNKNOWN)
case DWC3_MODE_DEVICE: dwc->dr_mode = USB_DR_MODE_OTG;
switch (dwc->dr_mode) {
case USB_DR_MODE_PERIPHERAL:
dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE); dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_DEVICE);
ret = dwc3_gadget_init(dwc); ret = dwc3_gadget_init(dwc);
if (ret) { if (ret) {
@ -513,7 +515,7 @@ static int dwc3_probe(struct platform_device *pdev)
goto err2; goto err2;
} }
break; break;
case DWC3_MODE_HOST: case USB_DR_MODE_HOST:
dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST); dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_HOST);
ret = dwc3_host_init(dwc); ret = dwc3_host_init(dwc);
if (ret) { if (ret) {
@ -521,7 +523,7 @@ static int dwc3_probe(struct platform_device *pdev)
goto err2; goto err2;
} }
break; break;
case DWC3_MODE_DRD: case USB_DR_MODE_OTG:
dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG); dwc3_set_mode(dwc, DWC3_GCTL_PRTCAP_OTG);
ret = dwc3_host_init(dwc); ret = dwc3_host_init(dwc);
if (ret) { if (ret) {
@ -536,10 +538,9 @@ static int dwc3_probe(struct platform_device *pdev)
} }
break; break;
default: default:
dev_err(dev, "Unsupported mode of operation %d\n", mode); dev_err(dev, "Unsupported mode of operation %d\n", dwc->dr_mode);
goto err2; goto err2;
} }
dwc->mode = mode;
ret = dwc3_debugfs_init(dwc); ret = dwc3_debugfs_init(dwc);
if (ret) { if (ret) {
@ -552,14 +553,14 @@ static int dwc3_probe(struct platform_device *pdev)
return 0; return 0;
err3: err3:
switch (mode) { switch (dwc->dr_mode) {
case DWC3_MODE_DEVICE: case USB_DR_MODE_PERIPHERAL:
dwc3_gadget_exit(dwc); dwc3_gadget_exit(dwc);
break; break;
case DWC3_MODE_HOST: case USB_DR_MODE_HOST:
dwc3_host_exit(dwc); dwc3_host_exit(dwc);
break; break;
case DWC3_MODE_DRD: case USB_DR_MODE_OTG:
dwc3_host_exit(dwc); dwc3_host_exit(dwc);
dwc3_gadget_exit(dwc); dwc3_gadget_exit(dwc);
break; break;
@ -592,14 +593,14 @@ static int dwc3_remove(struct platform_device *pdev)
dwc3_debugfs_exit(dwc); dwc3_debugfs_exit(dwc);
switch (dwc->mode) { switch (dwc->dr_mode) {
case DWC3_MODE_DEVICE: case USB_DR_MODE_PERIPHERAL:
dwc3_gadget_exit(dwc); dwc3_gadget_exit(dwc);
break; break;
case DWC3_MODE_HOST: case USB_DR_MODE_HOST:
dwc3_host_exit(dwc); dwc3_host_exit(dwc);
break; break;
case DWC3_MODE_DRD: case USB_DR_MODE_OTG:
dwc3_host_exit(dwc); dwc3_host_exit(dwc);
dwc3_gadget_exit(dwc); dwc3_gadget_exit(dwc);
break; break;
@ -623,12 +624,12 @@ static int dwc3_prepare(struct device *dev)
spin_lock_irqsave(&dwc->lock, flags); spin_lock_irqsave(&dwc->lock, flags);
switch (dwc->mode) { switch (dwc->dr_mode) {
case DWC3_MODE_DEVICE: case USB_DR_MODE_PERIPHERAL:
case DWC3_MODE_DRD: case USB_DR_MODE_OTG:
dwc3_gadget_prepare(dwc); dwc3_gadget_prepare(dwc);
/* FALLTHROUGH */ /* FALLTHROUGH */
case DWC3_MODE_HOST: case USB_DR_MODE_HOST:
default: default:
dwc3_event_buffers_cleanup(dwc); dwc3_event_buffers_cleanup(dwc);
break; break;
@ -646,12 +647,12 @@ static void dwc3_complete(struct device *dev)
spin_lock_irqsave(&dwc->lock, flags); spin_lock_irqsave(&dwc->lock, flags);
switch (dwc->mode) { switch (dwc->dr_mode) {
case DWC3_MODE_DEVICE: case USB_DR_MODE_PERIPHERAL:
case DWC3_MODE_DRD: case USB_DR_MODE_OTG:
dwc3_gadget_complete(dwc); dwc3_gadget_complete(dwc);
/* FALLTHROUGH */ /* FALLTHROUGH */
case DWC3_MODE_HOST: case USB_DR_MODE_HOST:
default: default:
dwc3_event_buffers_setup(dwc); dwc3_event_buffers_setup(dwc);
break; break;
@ -667,12 +668,12 @@ static int dwc3_suspend(struct device *dev)
spin_lock_irqsave(&dwc->lock, flags); spin_lock_irqsave(&dwc->lock, flags);
switch (dwc->mode) { switch (dwc->dr_mode) {
case DWC3_MODE_DEVICE: case USB_DR_MODE_PERIPHERAL:
case DWC3_MODE_DRD: case USB_DR_MODE_OTG:
dwc3_gadget_suspend(dwc); dwc3_gadget_suspend(dwc);
/* FALLTHROUGH */ /* FALLTHROUGH */
case DWC3_MODE_HOST: case USB_DR_MODE_HOST:
default: default:
/* do nothing */ /* do nothing */
break; break;
@ -700,12 +701,12 @@ static int dwc3_resume(struct device *dev)
dwc3_writel(dwc->regs, DWC3_GCTL, dwc->gctl); dwc3_writel(dwc->regs, DWC3_GCTL, dwc->gctl);
switch (dwc->mode) { switch (dwc->dr_mode) {
case DWC3_MODE_DEVICE: case USB_DR_MODE_PERIPHERAL:
case DWC3_MODE_DRD: case USB_DR_MODE_OTG:
dwc3_gadget_resume(dwc); dwc3_gadget_resume(dwc);
/* FALLTHROUGH */ /* FALLTHROUGH */
case DWC3_MODE_HOST: case USB_DR_MODE_HOST:
default: default:
/* do nothing */ /* do nothing */
break; break;

11
drivers/usb/dwc3/core.h
Просмотреть файл

@ -29,6 +29,7 @@
#include <linux/usb/ch9.h> #include <linux/usb/ch9.h>
#include <linux/usb/gadget.h> #include <linux/usb/gadget.h>
#include <linux/usb/otg.h>
/* Global constants */ /* Global constants */
#define DWC3_EP0_BOUNCE_SIZE 512 #define DWC3_EP0_BOUNCE_SIZE 512
@ -545,11 +546,6 @@ struct dwc3_hwparams {
/* HWPARAMS0 */ /* HWPARAMS0 */
#define DWC3_MODE(n) ((n) & 0x7) #define DWC3_MODE(n) ((n) & 0x7)
#define DWC3_MODE_DEVICE 0
#define DWC3_MODE_HOST 1
#define DWC3_MODE_DRD 2
#define DWC3_MODE_HUB 3
#define DWC3_MDWIDTH(n) (((n) & 0xff00) >> 8) #define DWC3_MDWIDTH(n) (((n) & 0xff00) >> 8)
/* HWPARAMS1 */ /* HWPARAMS1 */
@ -611,7 +607,7 @@ struct dwc3_scratchpad_array {
* @u1u2: only used on revisions <1.83a for workaround * @u1u2: only used on revisions <1.83a for workaround
* @maximum_speed: maximum speed requested (mainly for testing purposes) * @maximum_speed: maximum speed requested (mainly for testing purposes)
* @revision: revision register contents * @revision: revision register contents
* @mode: mode of operation * @dr_mode: requested mode of operation
* @usb2_phy: pointer to USB2 PHY * @usb2_phy: pointer to USB2 PHY
* @usb3_phy: pointer to USB3 PHY * @usb3_phy: pointer to USB3 PHY
* @dcfg: saved contents of DCFG register * @dcfg: saved contents of DCFG register
@ -669,6 +665,8 @@ struct dwc3 {
void __iomem *regs; void __iomem *regs;
size_t regs_size; size_t regs_size;
enum usb_dr_mode dr_mode;
/* used for suspend/resume */ /* used for suspend/resume */
u32 dcfg; u32 dcfg;
u32 gctl; u32 gctl;
@ -677,7 +675,6 @@ struct dwc3 {
u32 u1u2; u32 u1u2;
u32 maximum_speed; u32 maximum_speed;
u32 revision; u32 revision;
u32 mode;
#define DWC3_REVISION_173A 0x5533173a #define DWC3_REVISION_173A 0x5533173a
#define DWC3_REVISION_175A 0x5533175a #define DWC3_REVISION_175A 0x5533175a

2
drivers/usb/dwc3/platform_data.h
Просмотреть файл

@ -18,8 +18,10 @@
*/ */
#include <linux/usb/ch9.h> #include <linux/usb/ch9.h>
#include <linux/usb/otg.h>
struct dwc3_platform_data { struct dwc3_platform_data {
enum usb_device_speed maximum_speed; enum usb_device_speed maximum_speed;
enum usb_dr_mode dr_mode;
bool tx_fifo_resize; bool tx_fifo_resize;
}; };