[PATCH 1/7] usb: otg: enable regulator only on cable/device connect

[PATCH 1/7] usb: otg: enable regulator only on cable/device connect

[Hema HK]

Remove the regulator enable while driver loading and enable it only when
the cable/device is connected and disable it when disconnected.

Remove the configuration of config_state and config_trans register
configuration as these registers are programmed when regulator 
enable/disable is called.

Signed-off-by: Hema HK <hemahk@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/otg/twl6030-usb.c |   27 ++++++++++++---------------
 1 file changed, 12 insertions(+), 15 deletions(-)

Index: linux-2.6/drivers/usb/otg/twl6030-usb.c
===================================================================
--- linux-2.6.orig/drivers/usb/otg/twl6030-usb.c
+++ linux-2.6/drivers/usb/otg/twl6030-usb.c
@@ -158,8 +158,6 @@ static int twl6030_phy_init(struct otg_t
 	dev  = twl->dev;
 	pdata = dev->platform_data;
 
-	regulator_enable(twl->usb3v3);
-
 	hw_state = twl6030_readb(twl, TWL6030_MODULE_ID0, STS_HW_CONDITIONS);
 
 	if (hw_state & STS_USB_ID)
@@ -180,7 +178,6 @@ static void twl6030_phy_shutdown(struct 
 	dev  = twl->dev;
 	pdata = dev->platform_data;
 	pdata->phy_power(twl->dev, 0, 0);
-	regulator_disable(twl->usb3v3);
 }
 
 static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
@@ -199,16 +196,6 @@ static int twl6030_usb_ldo_init(struct t
 	if (IS_ERR(twl->usb3v3))
 		return -ENODEV;
 
-	regulator_enable(twl->usb3v3);
-
-	/* Program the VUSB_CFG_TRANS for ACTIVE state. */
-	twl6030_writeb(twl, TWL_MODULE_PM_RECEIVER, 0x3F,
-						VUSB_CFG_TRANS);
-
-	/* Program the VUSB_CFG_STATE register to ON on all groups. */
-	twl6030_writeb(twl, TWL_MODULE_PM_RECEIVER, 0xE1,
-						VUSB_CFG_STATE);
-
 	/* Program the USB_VBUS_CTRL_SET and set VBUS_ACT_COMP bit */
 	twl6030_writeb(twl, TWL_MODULE_USB, 0x4, USB_VBUS_CTRL_SET);
 
@@ -261,16 +248,23 @@ static irqreturn_t twl6030_usb_irq(int i
 						CONTROLLER_STAT1);
 	if (!(hw_state & STS_USB_ID)) {
 		if (vbus_state & VBUS_DET) {
+			regulator_enable(twl->usb3v3);
+			twl->asleep = 1;
 			status = USB_EVENT_VBUS;
 			twl->otg.default_a = false;
 			twl->otg.state = OTG_STATE_B_IDLE;
+			twl->linkstat = status;
+			blocking_notifier_call_chain(&twl->otg.notifier,
+						status, twl->otg.gadget);
 		} else {
 			status = USB_EVENT_NONE;
-		}
-		if (status >= 0) {
 			twl->linkstat = status;
 			blocking_notifier_call_chain(&twl->otg.notifier,
 						status, twl->otg.gadget);
+			if (twl->asleep) {
+				regulator_disable(twl->usb3v3);
+				twl->asleep = 0;
+			}
 		}
 	}
 	sysfs_notify(&twl->dev->kobj, NULL, "vbus");
@@ -288,6 +282,8 @@ static irqreturn_t twl6030_usbotg_irq(in
 
 	if (hw_state & STS_USB_ID) {
 
+		regulator_enable(twl->usb3v3);
+		twl->asleep = 1;
 		twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_CLR, 0x1);
 		twl6030_writeb(twl, TWL_MODULE_USB, USB_ID_INT_EN_HI_SET,
 								0x10);
@@ -437,6 +433,7 @@ static int __devinit twl6030_usb_probe(s
 		return status;
 	}
 
+	twl->asleep = 0;
 	pdata->phy_init(dev);
 	twl6030_enable_irq(&twl->otg);
 	dev_info(&pdev->dev, "Initialized TWL6030 USB module\n");

[PATCH 2/7] usb: otg: Remove one unnecessary I2C read request.

[Hema HK]

To get the ID status there was an I2C read transfer. Removed this I2C
read transfer as this info can be used from existing variable(linkstat).

Signed-off-by: Hema HK <hemahk-l0cyMroinI0@public.gmane.org>
Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
---
 drivers/usb/otg/twl6030-usb.c |    7 ++-----
 1 file changed, 2 insertions(+), 5 deletions(-)

Index: linux-2.6/drivers/usb/otg/twl6030-usb.c
===================================================================
--- linux-2.6.orig/drivers/usb/otg/twl6030-usb.c
+++ linux-2.6/drivers/usb/otg/twl6030-usb.c
@@ -149,7 +149,6 @@ static int twl6030_set_phy_clk(struct ot
 
 static int twl6030_phy_init(struct otg_transceiver *x)
 {
-	u8 hw_state;
 	struct twl6030_usb *twl;
 	struct device *dev;
 	struct twl4030_usb_data *pdata;
@@ -158,9 +157,7 @@ static int twl6030_phy_init(struct otg_t
 	dev  = twl->dev;
 	pdata = dev->platform_data;
 
-	hw_state = twl6030_readb(twl, TWL6030_MODULE_ID0, STS_HW_CONDITIONS);

[PATCH 3/7] usb: otg: OMAP4430: Introducing suspend function for power management

[Hema HK]

Introduced the suspend/resume function for the OMAP4430 internal PHY.
This will be used by the twl6030-usb transceiver driver.
Moved the clock enable/disable function calls and power on/off of the PHY
code from power on/off functions to suspend/resume function.

Signed-off-by: Hema HK <hemahk@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
Cc: Tony Lindgren <tony@atomide.com>
---
 arch/arm/mach-omap2/omap_phy_internal.c |   22 +++++++++++++++-------
 1 file changed, 15 insertions(+), 7 deletions(-)

Index: linux-2.6/arch/arm/mach-omap2/omap_phy_internal.c
===================================================================
--- linux-2.6.orig/arch/arm/mach-omap2/omap_phy_internal.c
+++ linux-2.6/arch/arm/mach-omap2/omap_phy_internal.c
@@ -103,13 +103,6 @@ int omap4430_phy_set_clk(struct device *
 int omap4430_phy_power(struct device *dev, int ID, int on)
 {
 	if (on) {
-		/* enabled the clocks */
-		omap4430_phy_set_clk(dev, 1);
-		/* power on the phy */
-		if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
-			__raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
-			mdelay(200);
-		}
 		if (ID)
 			/* enable VBUS valid, IDDIG groung */
 			__raw_writel(AVALID | VBUSVALID, ctrl_base +
@@ -125,10 +118,25 @@ int omap4430_phy_power(struct device *de
 		/* Enable session END and IDIG to high impedence. */
 		__raw_writel(SESSEND | IDDIG, ctrl_base +
 					USBOTGHS_CONTROL);
+	}
+	return 0;
+}
+
+int omap4430_phy_suspend(struct device *dev, int suspend)
+{
+	if (suspend) {
 		/* Disable the clocks */
 		omap4430_phy_set_clk(dev, 0);
 		/* Power down the phy */
 		__raw_writel(PHY_PD, ctrl_base + CONTROL_DEV_CONF);
+	} else {
+		/* Enable the internel phy clcoks */
+		omap4430_phy_set_clk(dev, 1);
+		/* power on the phy */
+		if (__raw_readl(ctrl_base + CONTROL_DEV_CONF) & PHY_PD) {
+			__raw_writel(~PHY_PD, ctrl_base + CONTROL_DEV_CONF);
+			mdelay(200);
+		}
 	}
 
 	return 0;

[PATCH 4/7] usb: otg: OMAP4430: Add phy_suspend function pointer to twl4030_usb_data

[Hema HK]

Introduce the .phy_suspend function pointer to twl4030_usb_data structure.
assign the function to it for both sdp board and panda boards.
This will be used by the twl6030-usb transceiver driver.

Signed-off-by: Hema HK <hemahk-l0cyMroinI0@public.gmane.org>
Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
Cc: Tony Lindgren <tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
---
 arch/arm/mach-omap2/board-4430sdp.c    |    1 +
 arch/arm/mach-omap2/board-omap4panda.c |    1 +
 arch/arm/plat-omap/include/plat/usb.h  |    1 +
 include/linux/i2c/twl.h                |    2 ++
 4 files changed, 5 insertions(+)

Index: linux-2.6/arch/arm/mach-omap2/board-4430sdp.c
===================================================================
--- linux-2.6.orig/arch/arm/mach-omap2/board-4430sdp.c
+++ linux-2.6/arch/arm/mach-omap2/board-4430sdp.c
@@ -272,6 +272,7 @@ static struct twl4030_usb_data omap4_usb
 	.phy_exit	= omap4430_phy_exit,
 	.phy_power	= omap4430_phy_power,
 	.phy_set_clock	= omap4430_phy_set_clk,
+	.phy_suspend	= omap4430_phy_suspend,
 };
 
 static struct omap2_hsmmc_info mmc[] = {
Index: linux-2.6/arch/arm/mach-omap2/board-omap4panda.c
===================================================================
--- linux-2.6.orig/arch/arm/mach-omap2/board-omap4panda.c
+++ linux-2.6/arch/arm/mach-omap2/board-omap4panda.c
@@ -153,6 +153,7 @@ static struct twl4030_usb_data omap4_usb
 	.phy_exit	= omap4430_phy_exit,
 	.phy_power	= omap4430_phy_power,
 	.phy_set_clock	= omap4430_phy_set_clk,
+	.phy_suspend	= omap4430_phy_suspend,
 };
 
 static struct omap2_hsmmc_info mmc[] = {
Index: linux-2.6/arch/arm/plat-omap/include/plat/usb.h
===================================================================
--- linux-2.6.orig/arch/arm/plat-omap/include/plat/usb.h
+++ linux-2.6/arch/arm/plat-omap/include/plat/usb.h
@@ -88,6 +88,7 @@ extern int omap4430_phy_power(struct dev
 extern int omap4430_phy_set_clk(struct device *dev, int on);
 extern int omap4430_phy_init(struct device *dev);
 extern int omap4430_phy_exit(struct device *dev);
+extern int omap4430_phy_suspend(struct device *dev, int suspend);
 
 #endif
 
Index: linux-2.6/include/linux/i2c/twl.h
===================================================================
--- linux-2.6.orig/include/linux/i2c/twl.h
+++ linux-2.6/include/linux/i2c/twl.h
@@ -600,6 +600,8 @@ struct twl4030_usb_data {
 	int		(*phy_power)(struct device *dev, int iD, int on);
 	/* enable/disable  phy clocks */
 	int		(*phy_set_clock)(struct device *dev, int on);
+	/* suspend/resume of phy */
+	int		(*phy_suspend)(struct device *dev, int suspend);
 };
 
 struct twl4030_ins {
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Re: [PATCH 4/7] usb: otg: OMAP4430: Add phy_suspend function pointer to twl4030_usb_data

[Sergei Shtylyov]

Hello.

On 03-02-2011 12:49, Hema HK wrote:

> Introduce the .phy_suspend function pointer to twl4030_usb_data structure.
> assign the function to it for both sdp board and panda boards.
> This will be used by the twl6030-usb transceiver driver.

> Signed-off-by: Hema HK<hemahk@ti.com>
> Cc: Felipe Balbi<balbi@ti.com>
> Cc: Tony Lindgren<tony@atomide.com>

> Index: linux-2.6/arch/arm/plat-omap/include/plat/usb.h
> ===================================================================
> --- linux-2.6.orig/arch/arm/plat-omap/include/plat/usb.h
> +++ linux-2.6/arch/arm/plat-omap/include/plat/usb.h
> @@ -88,6 +88,7 @@ extern int omap4430_phy_power(struct dev
>   extern int omap4430_phy_set_clk(struct device *dev, int on);
>   extern int omap4430_phy_init(struct device *dev);
>   extern int omap4430_phy_exit(struct device *dev);
> +extern int omap4430_phy_suspend(struct device *dev, int suspend);

    And where it it defined? Why this doesn't happen in this patch?

WBR, Sergei

RE: [PATCH 4/7] usb: otg: OMAP4430: Add phy_suspend function pointer to twl4030_usb_data

[Hema Kalliguddi]

 Hi,

>-----Original Message-----
>From: Sergei Shtylyov [mailto:sshtylyov-Igf4POYTYCDQT0dZR+AlfA@public.gmane.org]
>Sent: Thursday, February 03, 2011 7:16 PM
>To: Hema HK
>Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org;
>Felipe Balbi; Tony Lindgren
>Subject: Re: [PATCH 4/7] usb: otg: OMAP4430: Add phy_suspend
>function pointer to twl4030_usb_data
>
>Hello.
>
>On 03-02-2011 12:49, Hema HK wrote:
>
>> Introduce the .phy_suspend function pointer to
>twl4030_usb_data structure.
>> assign the function to it for both sdp board and panda boards.
>> This will be used by the twl6030-usb transceiver driver.
>
>> Signed-off-by: Hema HK<hemahk-l0cyMroinI0@public.gmane.org>
>> Cc: Felipe Balbi<balbi-l0cyMroinI0@public.gmane.org>
>> Cc: Tony Lindgren<tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
>
>> Index: linux-2.6/arch/arm/plat-omap/include/plat/usb.h
>> ===================================================================
>> --- linux-2.6.orig/arch/arm/plat-omap/include/plat/usb.h
>> +++ linux-2.6/arch/arm/plat-omap/include/plat/usb.h
>> @@ -88,6 +88,7 @@ extern int omap4430_phy_power(struct dev
>>   extern int omap4430_phy_set_clk(struct device *dev, int on);
>>   extern int omap4430_phy_init(struct device *dev);
>>   extern int omap4430_phy_exit(struct device *dev);
>> +extern int omap4430_phy_suspend(struct device *dev, int suspend);
>
>    And where it it defined? Why this doesn't happen in this patch?
>
This is defined in the previous patch. This could have been done in
previous patch
also, but it is just that extern is done only when using.

Regards,
Hema


>WBR, Sergei
>
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Re: [PATCH 4/7] usb: otg: OMAP4430: Add phy_suspend function pointer to twl4030_usb_data

[Sergei Shtylyov]

Hello.

On 03-02-2011 12:49, Hema HK wrote:

> Introduce the .phy_suspend function pointer to twl4030_usb_data structure.
> assign the function to it for both sdp board and panda boards.
> This will be used by the twl6030-usb transceiver driver.

> Signed-off-by: Hema HK<hemahk@ti.com>
> Cc: Felipe Balbi<balbi@ti.com>
> Cc: Tony Lindgren<tony@atomide.com>
[...]

> Index: linux-2.6/arch/arm/mach-omap2/board-4430sdp.c
> ===================================================================
> --- linux-2.6.orig/arch/arm/mach-omap2/board-4430sdp.c
> +++ linux-2.6/arch/arm/mach-omap2/board-4430sdp.c
> @@ -272,6 +272,7 @@ static struct twl4030_usb_data omap4_usb
>   	.phy_exit	= omap4430_phy_exit,
>   	.phy_power	= omap4430_phy_power,
>   	.phy_set_clock	= omap4430_phy_set_clk,
> +	.phy_suspend	= omap4430_phy_suspend,
>   };
>
>   static struct omap2_hsmmc_info mmc[] = {
> Index: linux-2.6/arch/arm/mach-omap2/board-omap4panda.c
> ===================================================================
> --- linux-2.6.orig/arch/arm/mach-omap2/board-omap4panda.c
> +++ linux-2.6/arch/arm/mach-omap2/board-omap4panda.c
> @@ -153,6 +153,7 @@ static struct twl4030_usb_data omap4_usb
>   	.phy_exit	= omap4430_phy_exit,
>   	.phy_power	= omap4430_phy_power,
>   	.phy_set_clock	= omap4430_phy_set_clk,
> +	.phy_suspend	= omap4430_phy_suspend,
>   };
>
>   static struct omap2_hsmmc_info mmc[] = {
> Index: linux-2.6/arch/arm/plat-omap/include/plat/usb.h
> ===================================================================
> --- linux-2.6.orig/arch/arm/plat-omap/include/plat/usb.h
> +++ linux-2.6/arch/arm/plat-omap/include/plat/usb.h
> @@ -88,6 +88,7 @@ extern int omap4430_phy_power(struct dev
>   extern int omap4430_phy_set_clk(struct device *dev, int on);
>   extern int omap4430_phy_init(struct device *dev);
>   extern int omap4430_phy_exit(struct device *dev);
> +extern int omap4430_phy_suspend(struct device *dev, int suspend);
>
>   #endif
>
> Index: linux-2.6/include/linux/i2c/twl.h
> ===================================================================
> --- linux-2.6.orig/include/linux/i2c/twl.h
> +++ linux-2.6/include/linux/i2c/twl.h
> @@ -600,6 +600,8 @@ struct twl4030_usb_data {
>   	int		(*phy_power)(struct device *dev, int iD, int on);
>   	/* enable/disable  phy clocks */
>   	int		(*phy_set_clock)(struct device *dev, int on);
> +	/* suspend/resume of phy */
> +	int		(*phy_suspend)(struct device *dev, int suspend);
>   };

    I think this patch should contain only this change, and the initializers 
and 'extern' declaration should be merged to the previous patch.
    Also, where do you call this method? Ah, I see, in the next patch. I think 
it should be merged to this one then.

WBR, Sergei

RE: [PATCH 4/7] usb: otg: OMAP4430: Add phy_suspend function pointer to twl4030_usb_data

[Hema Kalliguddi]

Hi,

>-----Original Message-----
>From: Sergei Shtylyov [mailto:sshtylyov-Igf4POYTYCDQT0dZR+AlfA@public.gmane.org]
>Sent: Thursday, February 03, 2011 7:20 PM
>To: Hema HK
>Cc: linux-usb-u79uwXL29TY76Z2rM5mHXA@public.gmane.org; linux-omap-u79uwXL29TY76Z2rM5mHXA@public.gmane.org;
>Felipe Balbi; Tony Lindgren
>Subject: Re: [PATCH 4/7] usb: otg: OMAP4430: Add phy_suspend
>function pointer to twl4030_usb_data
>
>Hello.
>
>On 03-02-2011 12:49, Hema HK wrote:
>
>> Introduce the .phy_suspend function pointer to
>twl4030_usb_data structure.
>> assign the function to it for both sdp board and panda boards.
>> This will be used by the twl6030-usb transceiver driver.
>
>> Signed-off-by: Hema HK<hemahk-l0cyMroinI0@public.gmane.org>
>> Cc: Felipe Balbi<balbi-l0cyMroinI0@public.gmane.org>
>> Cc: Tony Lindgren<tony-4v6yS6AI5VpBDgjK7y7TUQ@public.gmane.org>
>[...]
>
>> Index: linux-2.6/arch/arm/mach-omap2/board-4430sdp.c
>> ===================================================================
>> --- linux-2.6.orig/arch/arm/mach-omap2/board-4430sdp.c
>> +++ linux-2.6/arch/arm/mach-omap2/board-4430sdp.c
>> @@ -272,6 +272,7 @@ static struct twl4030_usb_data omap4_usb
>>   	.phy_exit	= omap4430_phy_exit,
>>   	.phy_power	= omap4430_phy_power,
>>   	.phy_set_clock	= omap4430_phy_set_clk,
>> +	.phy_suspend	= omap4430_phy_suspend,
>>   };
>>
>>   static struct omap2_hsmmc_info mmc[] = {
>> Index: linux-2.6/arch/arm/mach-omap2/board-omap4panda.c
>> ===================================================================
>> --- linux-2.6.orig/arch/arm/mach-omap2/board-omap4panda.c
>> +++ linux-2.6/arch/arm/mach-omap2/board-omap4panda.c
>> @@ -153,6 +153,7 @@ static struct twl4030_usb_data omap4_usb
>>   	.phy_exit	= omap4430_phy_exit,
>>   	.phy_power	= omap4430_phy_power,
>>   	.phy_set_clock	= omap4430_phy_set_clk,
>> +	.phy_suspend	= omap4430_phy_suspend,
>>   };
>>
>>   static struct omap2_hsmmc_info mmc[] = {
>> Index: linux-2.6/arch/arm/plat-omap/include/plat/usb.h
>> ===================================================================
>> --- linux-2.6.orig/arch/arm/plat-omap/include/plat/usb.h
>> +++ linux-2.6/arch/arm/plat-omap/include/plat/usb.h
>> @@ -88,6 +88,7 @@ extern int omap4430_phy_power(struct dev
>>   extern int omap4430_phy_set_clk(struct device *dev, int on);
>>   extern int omap4430_phy_init(struct device *dev);
>>   extern int omap4430_phy_exit(struct device *dev);
>> +extern int omap4430_phy_suspend(struct device *dev, int suspend);
>>
>>   #endif
>>
>> Index: linux-2.6/include/linux/i2c/twl.h
>> ===================================================================
>> --- linux-2.6.orig/include/linux/i2c/twl.h
>> +++ linux-2.6/include/linux/i2c/twl.h
>> @@ -600,6 +600,8 @@ struct twl4030_usb_data {
>>   	int		(*phy_power)(struct device *dev, int
>iD, int on);
>>   	/* enable/disable  phy clocks */
>>   	int		(*phy_set_clock)(struct device *dev, int on);
>> +	/* suspend/resume of phy */
>> +	int		(*phy_suspend)(struct device *dev, int suspend);
>>   };
>
>    I think this patch should contain only this change, and
>the initializers
>and 'extern' declaration should be merged to the previous patch.
>    Also, where do you call this method? Ah, I see, in the
>next patch. I think
>it should be merged to this one then.

No. if I do that git bisect fails.
Initializer does not make any sense without function poointer declaration.
Only extern can be moved to previous patch but, I think it is OK to extern
it
while using.

Regards,
Hema
>
>WBR, Sergei
>
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[PATCH 5/7] usb: otg: TWL6030: Introduce the twl6030_phy_suspend function.

[Hema HK]

Introduce the twl6030_phy_suspend function and assign to otg.set_suspend
function pointer.
This function is used by the musb-omap2430 platform driver
during suspend/resume.

Signed-off-by: Hema HK <hemahk-l0cyMroinI0@public.gmane.org>
Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
---
 drivers/usb/otg/twl6030-usb.c |   16 ++++++++++++++++
 1 file changed, 16 insertions(+)

Index: linux-2.6/drivers/usb/otg/twl6030-usb.c
===================================================================
--- linux-2.6.orig/drivers/usb/otg/twl6030-usb.c
+++ linux-2.6/drivers/usb/otg/twl6030-usb.c
@@ -177,6 +177,20 @@ static void twl6030_phy_shutdown(struct 
 	pdata->phy_power(twl->dev, 0, 0);
 }
 
+static int twl6030_phy_suspend(struct otg_transceiver *x, int suspend)
+{
+	struct twl6030_usb *twl;
+	struct device *dev;
+	struct twl4030_usb_data *pdata;
+
+	twl = xceiv_to_twl(x);
+	dev  = twl->dev;
+	pdata = dev->platform_data;
+	pdata->phy_suspend(twl->dev, suspend);
+
+	return 0;
+}
+
 static int twl6030_usb_ldo_init(struct twl6030_usb *twl)
 {
 
@@ -388,6 +402,7 @@ static int __devinit twl6030_usb_probe(s
 	twl->otg.set_vbus	= twl6030_set_vbus;
 	twl->otg.init		= twl6030_phy_init;
 	twl->otg.shutdown	= twl6030_phy_shutdown;
+	twl->otg.set_suspend	= twl6030_phy_suspend;
 
 	/* init spinlock for workqueue */
 	spin_lock_init(&twl->lock);
@@ -432,6 +447,7 @@ static int __devinit twl6030_usb_probe(s
 
 	twl->asleep = 0;
 	pdata->phy_init(dev);
+	twl6030_phy_suspend(&twl->otg, 0);
 	twl6030_enable_irq(&twl->otg);
 	dev_info(&pdev->dev, "Initialized TWL6030 USB module\n");
 
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[PATCH 6/7] usb: otg: TWL6030 Save the last event in otg_transceiver

[Hema HK]

Save the last event in the otg_transceiver so that it can used in the
musb driver and gadget driver to configure the musb and enable the 
vbus for host mode and OTG mode, if the device is connected during boot.

Signed-off-by: Hema HK <hemahk-l0cyMroinI0@public.gmane.org>
Cc: Felipe Balbi <balbi-l0cyMroinI0@public.gmane.org>
---
[Reusing some part of the patch[1] posted by Arnaud Mandy]
[1] http://permalink.gmane.org/gmane.linux.usb.general/37123
---
 drivers/usb/otg/twl6030-usb.c |    3 +++
 include/linux/usb/otg.h       |    1 +
 2 files changed, 4 insertions(+)

Index: linux-2.6/drivers/usb/otg/twl6030-usb.c
===================================================================
--- linux-2.6.orig/drivers/usb/otg/twl6030-usb.c
+++ linux-2.6/drivers/usb/otg/twl6030-usb.c
@@ -265,11 +265,13 @@ static irqreturn_t twl6030_usb_irq(int i
 			twl->otg.default_a = false;
 			twl->otg.state = OTG_STATE_B_IDLE;
 			twl->linkstat = status;
+			twl->otg.last_event = status;
 			blocking_notifier_call_chain(&twl->otg.notifier,
 						status, twl->otg.gadget);
 		} else {
 			status = USB_EVENT_NONE;
 			twl->linkstat = status;
+			twl->otg.last_event = status;
 			blocking_notifier_call_chain(&twl->otg.notifier,
 						status, twl->otg.gadget);
 			if (twl->asleep) {
@@ -302,6 +304,7 @@ static irqreturn_t twl6030_usbotg_irq(in
 		twl->otg.default_a = true;
 		twl->otg.state = OTG_STATE_A_IDLE;
 		twl->linkstat = status;
+		twl->otg.last_event = status;
 		blocking_notifier_call_chain(&twl->otg.notifier, status,
 							twl->otg.gadget);
 	} else  {
Index: linux-2.6/include/linux/usb/otg.h
===================================================================
--- linux-2.6.orig/include/linux/usb/otg.h
+++ linux-2.6/include/linux/usb/otg.h
@@ -66,6 +66,7 @@ struct otg_transceiver {
 
 	u8			default_a;
 	enum usb_otg_state	state;
+	enum usb_xceiv_events	last_event;
 
 	struct usb_bus		*host;
 	struct usb_gadget	*gadget;
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[PATCH 7/7] usb: musb: OMAP4430: Fix usb device detection if connected during boot

[Hema HK]

OMAP4430 is embedded with UTMI PHY. This PHY does not support the
OTG features like ID pin detection and VBUS detection. This function
is exported to an external companion chip TWL6030. Software must retrieve
the OTG HNP and SRP status from the TWL6030 and configure the bits inside
the control module that drive the related USBOTGHS UTMI interface signals.
It must also read back the UTMI signals needed to configure the TWL6030 
OTG module.

Can find more details in the TRM[1].
[1]:http://focus.ti.com/pdfs/wtbu/OMAP4430_ES2.0_Public_TRM_vJ.pdf

In OMAP4430 musb driver VBUS and ID notifications are received from the
transceiver driver. If the cable/device is connected during boot,
notifications from transceiver driver will be missed till musb driver
is loaded.
Patch to configure the transceiver in the platform_enable/disable
functions and enable the vbus in the gadget driver based on the 
last_event of the otg_transceiver.

Signed-off-by: Hema HK <hemahk@ti.com>
Cc: Felipe Balbi <balbi@ti.com>
---
 drivers/usb/musb/musb_gadget.c |    4 +++
 drivers/usb/musb/omap2430.c    |   49 ++++++++++++++++++++++++++++++++++++-----
 2 files changed, 48 insertions(+), 5 deletions(-)

Index: linux-2.6/drivers/usb/musb/musb_gadget.c
===================================================================
--- linux-2.6.orig/drivers/usb/musb/musb_gadget.c
+++ linux-2.6/drivers/usb/musb/musb_gadget.c
@@ -1855,6 +1855,10 @@ int usb_gadget_probe_driver(struct usb_g
 			} else {
 				hcd->self.uses_pio_for_control = 1;
 			}
+
+			if ((musb->xceiv->last_event == USB_EVENT_ID)
+						&& musb->xceiv->set_vbus)
+				otg_set_vbus(musb->xceiv, 1);
 		}
 	}
 
Index: linux-2.6/drivers/usb/musb/omap2430.c
===================================================================
--- linux-2.6.orig/drivers/usb/musb/omap2430.c
+++ linux-2.6/drivers/usb/musb/omap2430.c
@@ -350,16 +350,55 @@ static int omap2430_musb_init(struct mus
 	if (status)
 		DBG(1, "notification register failed\n");
 
-	/* check whether cable is already connected */
-	if (musb->xceiv->state ==OTG_STATE_B_IDLE)
-		musb_otg_notifications(&musb->nb, 1,
-					musb->xceiv->gadget);
-
 	setup_timer(&musb_idle_timer, musb_do_idle, (unsigned long) musb);
 
 	return 0;
 }
 
+static void omap2430_musb_enable(struct musb *musb)
+{
+	u8		devctl;
+	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
+	struct device *dev = musb->controller;
+	struct musb_hdrc_platform_data *pdata = dev->platform_data;
+	struct omap_musb_board_data *data = pdata->board_data;
+
+	switch (musb->xceiv->last_event) {
+
+	case USB_EVENT_ID:
+		otg_init(musb->xceiv);
+		if (data->interface_type == MUSB_INTERFACE_UTMI) {
+			devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
+			/* start the session */
+			devctl |= MUSB_DEVCTL_SESSION;
+			musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
+			while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {
+				cpu_relax();
+
+				if (time_after(jiffies, timeout)) {
+					dev_err(musb->controller,
+					"configured as A device timeout");
+					break;
+				}
+			}
+		}
+		break;
+
+	case USB_EVENT_VBUS:
+		otg_init(musb->xceiv);
+		break;
+
+	default:
+		break;
+	}
+}
+
+static void omap2430_musb_disable(struct musb *musb)
+{
+	if (musb->xceiv->last_event)
+		otg_shutdown(musb->xceiv);
+}
+
 static int omap2430_musb_exit(struct musb *musb)
 {
 
@@ -377,6 +416,9 @@ static const struct musb_platform_ops om
 	.try_idle	= omap2430_musb_try_idle,
 
 	.set_vbus	= omap2430_musb_set_vbus,
+
+	.enable		= omap2430_musb_enable,
+	.disable	= omap2430_musb_disable,
 };
 
 static u64 omap2430_dmamask = DMA_BIT_MASK(32);

Re: [PATCH 7/7] usb: musb: OMAP4430: Fix usb device detection if connected during boot

[Felipe Balbi]

Hi,

On Thu, Feb 03, 2011 at 03:19:47PM +0530, Hema HK wrote:
> +static void omap2430_musb_enable(struct musb *musb)
> +{
> +	u8		devctl;
> +	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
> +	struct device *dev = musb->controller;
> +	struct musb_hdrc_platform_data *pdata = dev->platform_data;
> +	struct omap_musb_board_data *data = pdata->board_data;
> +
> +	switch (musb->xceiv->last_event) {
> +
> +	case USB_EVENT_ID:
> +		otg_init(musb->xceiv);
> +		if (data->interface_type == MUSB_INTERFACE_UTMI) {
> +			devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
> +			/* start the session */
> +			devctl |= MUSB_DEVCTL_SESSION;
> +			musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
> +			while (musb_readb(musb->mregs, MUSB_DEVCTL) & 0x80) {

isn't this BDEVICE bit ? We have a define for that, please use it.

-- 
balbi

RE: [PATCH 7/7] usb: musb: OMAP4430: Fix usb device detection if connected during boot

[Hema Kalliguddi]

>-----Original Message-----
>From: Felipe Balbi [mailto:balbi@ti.com]
>Sent: Monday, February 14, 2011 3:36 PM
>To: Hema HK
>Cc: linux-usb@vger.kernel.org; linux-omap@vger.kernel.org; Felipe Balbi
>Subject: Re: [PATCH 7/7] usb: musb: OMAP4430: Fix usb device
>detection if connected during boot
>
>Hi,
>
>On Thu, Feb 03, 2011 at 03:19:47PM +0530, Hema HK wrote:
>> +static void omap2430_musb_enable(struct musb *musb)
>> +{
>> +	u8		devctl;
>> +	unsigned long timeout = jiffies + msecs_to_jiffies(1000);
>> +	struct device *dev = musb->controller;
>> +	struct musb_hdrc_platform_data *pdata = dev->platform_data;
>> +	struct omap_musb_board_data *data = pdata->board_data;
>> +
>> +	switch (musb->xceiv->last_event) {
>> +
>> +	case USB_EVENT_ID:
>> +		otg_init(musb->xceiv);
>> +		if (data->interface_type == MUSB_INTERFACE_UTMI) {
>> +			devctl = musb_readb(musb->mregs, MUSB_DEVCTL);
>> +			/* start the session */
>> +			devctl |= MUSB_DEVCTL_SESSION;
>> +			musb_writeb(musb->mregs, MUSB_DEVCTL, devctl);
>> +			while (musb_readb(musb->mregs,
>MUSB_DEVCTL) & 0x80) {
>
>isn't this BDEVICE bit ? We have a define for that, please use it.
>
OK.

Regards,
Hema
>--
>balbi
>

[PATCHV2] OMAP4: OPP: add OMAP4460 definitions

[Vishwanath BS]

From: Sripathy, Vishwanath <vishwanath.bs@ti.com>

Add OMAP4460 OPP definitions for voltage and frequencies based on
OMAP4460 ES1.0 DM Operating Condition Addendum Version 0.1

The following exceptions are present:
* Smartreflex support is still on experimental mode: the gains and min
  limits are currently pending characterization data. Currently OMAP4430 values
  are used.
* Efuse offset for core OPP100-OV setting is not clear in documentation.
* IVA OPPs beyond OPP100 are disabled due to the delta between max OMAP4460
  current requirements and Phoenix Max supply on VCORE2 in the default
  configuration - boards which have supply which can support this should
  explicitly call opp_enable and enable the same.
* MPU OPPs > OPPTURBO can easily be detected using a efuse burnt - currently
  disabled pending clock changes to support DCC feature.

[nm@ti.com: cleanups and updates from Datamanual]
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
---
Patch is generated against latest lo master.
Changes in V2: Updated the commit log as per Nishant's comments.
Patch has some checkpatch warnings related to line over 80 chars. They have
been retained to keep the readability of the code.

 arch/arm/mach-omap2/control.h                 |    1 +
 arch/arm/mach-omap2/omap_opp_data.h           |    9 ++-
 arch/arm/mach-omap2/opp4xxx_data.c            |   96 ++++++++++++++++++++++---
 arch/arm/mach-omap2/voltagedomains44xx_data.c |   14 +++-
 4 files changed, 105 insertions(+), 15 deletions(-)

diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-omap2/control.h
index a016c8b..a41b9a7 100644
--- a/arch/arm/mach-omap2/control.h
+++ b/arch/arm/mach-omap2/control.h
@@ -195,6 +195,7 @@
 #define OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO	0x249
 #define OMAP44XX_CONTROL_FUSE_CORE_OPP50	0x254
 #define OMAP44XX_CONTROL_FUSE_CORE_OPP100	0x257
+#define OMAP44XX_CONTROL_FUSE_CORE_OPP100OV	0x25A
 
 /* AM35XX only CONTROL_GENERAL register offsets */
 #define AM35XX_CONTROL_MSUSPENDMUX_6    (OMAP2_CONTROL_GENERAL + 0x0038)
diff --git a/arch/arm/mach-omap2/omap_opp_data.h b/arch/arm/mach-omap2/omap_opp_data.h
index c784c12..18a750e 100644
--- a/arch/arm/mach-omap2/omap_opp_data.h
+++ b/arch/arm/mach-omap2/omap_opp_data.h
@@ -89,8 +89,11 @@ extern struct omap_volt_data omap34xx_vddcore_volt_data[];
 extern struct omap_volt_data omap36xx_vddmpu_volt_data[];
 extern struct omap_volt_data omap36xx_vddcore_volt_data[];
 
-extern struct omap_volt_data omap44xx_vdd_mpu_volt_data[];
-extern struct omap_volt_data omap44xx_vdd_iva_volt_data[];
-extern struct omap_volt_data omap44xx_vdd_core_volt_data[];
+extern struct omap_volt_data omap443x_vdd_mpu_volt_data[];
+extern struct omap_volt_data omap443x_vdd_iva_volt_data[];
+extern struct omap_volt_data omap443x_vdd_core_volt_data[];
+extern struct omap_volt_data omap446x_vdd_mpu_volt_data[];
+extern struct omap_volt_data omap446x_vdd_iva_volt_data[];
+extern struct omap_volt_data omap446x_vdd_core_volt_data[];
 
 #endif		/* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */
diff --git a/arch/arm/mach-omap2/opp4xxx_data.c b/arch/arm/mach-omap2/opp4xxx_data.c
index 2293ba2..8c285e4 100644
--- a/arch/arm/mach-omap2/opp4xxx_data.c
+++ b/arch/arm/mach-omap2/opp4xxx_data.c
@@ -1,7 +1,7 @@
 /*
  * OMAP4 OPP table definitions.
  *
- * Copyright (C) 2010 Texas Instruments Incorporated - http://www.ti.com/
+ * Copyright (C) 2010-2011 Texas Instruments Incorporated - http://www.ti.com/
  *	Nishanth Menon
  *	Kevin Hilman
  *	Thara Gopinath
@@ -36,7 +36,7 @@
 #define OMAP4430_VDD_MPU_OPPTURBO_UV		1313000
 #define OMAP4430_VDD_MPU_OPPNITRO_UV		1375000
 
-struct omap_volt_data omap44xx_vdd_mpu_volt_data[] = {
+struct omap_volt_data omap443x_vdd_mpu_volt_data[] = {
 	VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPP50_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP50, 0xf4, 0x0c),
 	VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPP100_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP100, 0xf9, 0x16),
 	VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO, 0xfa, 0x23),
@@ -48,7 +48,7 @@ struct omap_volt_data omap44xx_vdd_mpu_volt_data[] = {
 #define OMAP4430_VDD_IVA_OPP100_UV		1188000
 #define OMAP4430_VDD_IVA_OPPTURBO_UV		1300000
 
-struct omap_volt_data omap44xx_vdd_iva_volt_data[] = {
+struct omap_volt_data omap443x_vdd_iva_volt_data[] = {
 	VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPP50_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP50, 0xf4, 0x0c),
 	VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPP100_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP100, 0xf9, 0x16),
 	VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO, 0xfa, 0x23),
@@ -58,14 +58,14 @@ struct omap_volt_data omap44xx_vdd_iva_volt_data[] = {
 #define OMAP4430_VDD_CORE_OPP50_UV		1025000
 #define OMAP4430_VDD_CORE_OPP100_UV		1200000
 
-struct omap_volt_data omap44xx_vdd_core_volt_data[] = {
+struct omap_volt_data omap443x_vdd_core_volt_data[] = {
 	VOLT_DATA_DEFINE(OMAP4430_VDD_CORE_OPP50_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP50, 0xf4, 0x0c),
 	VOLT_DATA_DEFINE(OMAP4430_VDD_CORE_OPP100_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100, 0xf9, 0x16),
 	VOLT_DATA_DEFINE(0, 0, 0, 0),
 };
 
 
-static struct omap_opp_def __initdata omap44xx_opp_def_list[] = {
+static struct omap_opp_def __initdata omap443x_opp_def_list[] = {
 	/* MPU OPP1 - OPP50 */
 	OPP_INITIALIZER("mpu", true, 300000000, OMAP4430_VDD_MPU_OPP50_UV),
 	/* MPU OPP2 - OPP100 */
@@ -87,6 +87,82 @@ static struct omap_opp_def __initdata omap44xx_opp_def_list[] = {
 	/* TODO: add DSP, aess, fdif, gpu */
 };
 
+#define OMAP4460_VDD_MPU_OPP50_UV		1025000
+#define OMAP4460_VDD_MPU_OPP100_UV		1200000
+#define OMAP4460_VDD_MPU_OPPTURBO_UV		1313000
+#define OMAP4460_VDD_MPU_OPPNITRO_UV		1375000
+
+struct omap_volt_data omap446x_vdd_mpu_volt_data[] = {
+	VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPP50_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP50, 0xf4, 0x0c),
+	VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPP100_UV, OMAP44XX_CONTROL_FUSE_MPU_OPP100, 0xf9, 0x16),
+	VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO, 0xfa, 0x23),
+	VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPPNITRO_UV, OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO, 0xfa, 0x27),
+	VOLT_DATA_DEFINE(0, 0, 0, 0),
+};
+
+#define OMAP4460_VDD_IVA_OPP50_UV		1025000
+#define OMAP4460_VDD_IVA_OPP100_UV		1200000
+#define OMAP4460_VDD_IVA_OPPTURBO_UV		1313000
+#define OMAP4460_VDD_IVA_OPPNITRO_UV		1375000
+
+struct omap_volt_data omap446x_vdd_iva_volt_data[] = {
+	VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPP50_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP50, 0xf4, 0x0c),
+	VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPP100_UV, OMAP44XX_CONTROL_FUSE_IVA_OPP100, 0xf9, 0x16),
+	VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPPTURBO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO, 0xfa, 0x23),
+	VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPPNITRO_UV, OMAP44XX_CONTROL_FUSE_IVA_OPPNITRO, 0xfa, 0x23),
+	VOLT_DATA_DEFINE(0, 0, 0, 0),
+};
+
+#define OMAP4460_VDD_CORE_OPP50_UV		1025000
+#define OMAP4460_VDD_CORE_OPP100_UV		1200000
+#define OMAP4460_VDD_CORE_OPP100_OV_UV		1250000
+
+struct omap_volt_data omap446x_vdd_core_volt_data[] = {
+	VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP50_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP50, 0xf4, 0x0c),
+	VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100, 0xf9, 0x16),
+	VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_OV_UV, OMAP44XX_CONTROL_FUSE_CORE_OPP100OV, 0xf9, 0x16),
+	VOLT_DATA_DEFINE(0, 0, 0, 0),
+};
+
+static struct omap_opp_def __initdata omap446x_opp_def_list[] = {
+	/* MPU OPP1 - OPP50 */
+	OPP_INITIALIZER("mpu", true, 350000000, OMAP4460_VDD_MPU_OPP50_UV),
+	/* MPU OPP2 - OPP100 */
+	OPP_INITIALIZER("mpu", true, 700000000, OMAP4460_VDD_MPU_OPP100_UV),
+	/* MPU OPP3 - OPP-Turbo */
+	OPP_INITIALIZER("mpu", true, 920000000, OMAP4460_VDD_MPU_OPPTURBO_UV),
+	/*
+	 * MPU OPP4 - OPP-Nitro + Disabled as the reference schematics
+	 * recommends TPS623631 - confirm and enable the opp in board file
+	 * XXX: May be we should enable these based on mpu capability and
+	 * Exception board files disable it...
+	 */
+	OPP_INITIALIZER("mpu", false, 1200000000, OMAP4460_VDD_MPU_OPPNITRO_UV),
+	/* MPU OPP4 - OPP-Nitro SpeedBin */
+	OPP_INITIALIZER("mpu", false, 1500000000, OMAP4460_VDD_MPU_OPPNITRO_UV),
+	/* L3 OPP1 - OPP50 */
+	OPP_INITIALIZER("l3_main_1", true, 100000000, OMAP4460_VDD_CORE_OPP50_UV),
+	/* L3 OPP2 - OPP100 */
+	OPP_INITIALIZER("l3_main_1", true, 200000000, OMAP4460_VDD_CORE_OPP100_UV),
+	/* IVA OPP1 - OPP50 */
+	OPP_INITIALIZER("iva", true, 133000000, OMAP4460_VDD_IVA_OPP50_UV),
+	/* IVA OPP2 - OPP100 */
+	OPP_INITIALIZER("iva", true, 266100000, OMAP4460_VDD_IVA_OPP100_UV),
+	/*
+	 * IVA OPP3 - OPP-Turbo + Disabled as the reference schematics
+	 * recommends Phoenix VCORE2 which can supply only 600mA - so the ones
+	 * above this OPP frequency, even though OMAP is capable, should be
+	 * enabled by board file which is sure of the chip power capability
+	 */
+	OPP_INITIALIZER("iva", false, 332000000, OMAP4460_VDD_IVA_OPPTURBO_UV),
+	/* IVA OPP4 - OPP-Nitro */
+	OPP_INITIALIZER("iva", false, 430000000, OMAP4460_VDD_IVA_OPPNITRO_UV),
+	/* IVA OPP5 - OPP-Nitro SpeedBin*/
+	OPP_INITIALIZER("iva", false, 500000000, OMAP4460_VDD_IVA_OPPNITRO_UV),
+
+	/* TODO: add DSP, aess, fdif, gpu */
+};
+
 /**
  * omap4_opp_init() - initialize omap4 opp table
  */
@@ -96,10 +172,12 @@ int __init omap4_opp_init(void)
 
 	if (!cpu_is_omap44xx())
 		return r;
-
-	r = omap_init_opp_table(omap44xx_opp_def_list,
-			ARRAY_SIZE(omap44xx_opp_def_list));
-
+	if (cpu_is_omap443x())
+		r = omap_init_opp_table(omap443x_opp_def_list,
+			ARRAY_SIZE(omap443x_opp_def_list));
+	else if (cpu_is_omap446x())
+		r = omap_init_opp_table(omap446x_opp_def_list,
+			ARRAY_SIZE(omap446x_opp_def_list));
 	return r;
 }
 device_initcall(omap4_opp_init);
diff --git a/arch/arm/mach-omap2/voltagedomains44xx_data.c b/arch/arm/mach-omap2/voltagedomains44xx_data.c
index cb64996..f516cfe 100644
--- a/arch/arm/mach-omap2/voltagedomains44xx_data.c
+++ b/arch/arm/mach-omap2/voltagedomains44xx_data.c
@@ -91,9 +91,17 @@ static int __init omap44xx_voltage_early_init(void)
 	 * XXX Will depend on the process, validation, and binning
 	 * for the currently-running IC
 	 */
-	omap4_vdd_mpu_info.volt_data = omap44xx_vdd_mpu_volt_data;
-	omap4_vdd_iva_info.volt_data = omap44xx_vdd_iva_volt_data;
-	omap4_vdd_core_info.volt_data = omap44xx_vdd_core_volt_data;
+	if (cpu_is_omap443x()) {
+		omap4_vdd_mpu_info.volt_data = omap443x_vdd_mpu_volt_data;
+		omap4_vdd_iva_info.volt_data = omap443x_vdd_iva_volt_data;
+		omap4_vdd_core_info.volt_data = omap443x_vdd_core_volt_data;
+	} else if (cpu_is_omap446x()) {
+		omap4_vdd_mpu_info.volt_data = omap446x_vdd_mpu_volt_data;
+		omap4_vdd_iva_info.volt_data = omap446x_vdd_iva_volt_data;
+		omap4_vdd_core_info.volt_data = omap446x_vdd_core_volt_data;
+	} else {
+		return -ENODATA;
+	}
 
 	return omap_voltage_early_init(prm_mod, prm_irqst_ocp_mod,
 				       omap4_vdd_info,
-- 
1.7.0.4

RE: [PATCHV2] OMAP4: OPP: add OMAP4460 definitions

[Vishwanath Sripathy]

My mailer seems to have goofed the from email-id. Pls ignore this email. I
have sent another patch correcting the same.

Vishwa
> -----Original Message-----
> From: yes@dbdp31.itg.ti.com [mailto:yes@dbdp31.itg.ti.com]
> Sent: Thursday, July 21, 2011 10:23 AM
> To: linux-omap@vger.kernel.org
> Cc: linux-arm-kernel@lists.infradead.org; Sripathy, Vishwanath;
> Nishanth Menon
> Subject: [PATCHV2] OMAP4: OPP: add OMAP4460 definitions
>
> From: Sripathy, Vishwanath <vishwanath.bs@ti.com>
>
> Add OMAP4460 OPP definitions for voltage and frequencies based on
> OMAP4460 ES1.0 DM Operating Condition Addendum Version 0.1
>
> The following exceptions are present:
> * Smartreflex support is still on experimental mode: the gains and
> min
>   limits are currently pending characterization data. Currently
> OMAP4430 values
>   are used.
> * Efuse offset for core OPP100-OV setting is not clear in
> documentation.
> * IVA OPPs beyond OPP100 are disabled due to the delta between max
> OMAP4460
>   current requirements and Phoenix Max supply on VCORE2 in the
> default
>   configuration - boards which have supply which can support this
> should
>   explicitly call opp_enable and enable the same.
> * MPU OPPs > OPPTURBO can easily be detected using a efuse burnt -
> currently
>   disabled pending clock changes to support DCC feature.
>
> [nm@ti.com: cleanups and updates from Datamanual]
> Signed-off-by: Nishanth Menon <nm@ti.com>
> Signed-off-by: Vishwanath BS <vishwanath.bs@ti.com>
> ---
> Patch is generated against latest lo master.
> Changes in V2: Updated the commit log as per Nishant's comments.
> Patch has some checkpatch warnings related to line over 80 chars.
> They have
> been retained to keep the readability of the code.
>
>  arch/arm/mach-omap2/control.h                 |    1 +
>  arch/arm/mach-omap2/omap_opp_data.h           |    9 ++-
>  arch/arm/mach-omap2/opp4xxx_data.c            |   96
> ++++++++++++++++++++++---
>  arch/arm/mach-omap2/voltagedomains44xx_data.c |   14 +++-
>  4 files changed, 105 insertions(+), 15 deletions(-)
>
> diff --git a/arch/arm/mach-omap2/control.h b/arch/arm/mach-
> omap2/control.h
> index a016c8b..a41b9a7 100644
> --- a/arch/arm/mach-omap2/control.h
> +++ b/arch/arm/mach-omap2/control.h
> @@ -195,6 +195,7 @@
>  #define OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO	0x249
>  #define OMAP44XX_CONTROL_FUSE_CORE_OPP50	0x254
>  #define OMAP44XX_CONTROL_FUSE_CORE_OPP100	0x257
> +#define OMAP44XX_CONTROL_FUSE_CORE_OPP100OV	0x25A
>
>  /* AM35XX only CONTROL_GENERAL register offsets */
>  #define AM35XX_CONTROL_MSUSPENDMUX_6    (OMAP2_CONTROL_GENERAL +
> 0x0038)
> diff --git a/arch/arm/mach-omap2/omap_opp_data.h b/arch/arm/mach-
> omap2/omap_opp_data.h
> index c784c12..18a750e 100644
> --- a/arch/arm/mach-omap2/omap_opp_data.h
> +++ b/arch/arm/mach-omap2/omap_opp_data.h
> @@ -89,8 +89,11 @@ extern struct omap_volt_data
> omap34xx_vddcore_volt_data[];
>  extern struct omap_volt_data omap36xx_vddmpu_volt_data[];
>  extern struct omap_volt_data omap36xx_vddcore_volt_data[];
>
> -extern struct omap_volt_data omap44xx_vdd_mpu_volt_data[];
> -extern struct omap_volt_data omap44xx_vdd_iva_volt_data[];
> -extern struct omap_volt_data omap44xx_vdd_core_volt_data[];
> +extern struct omap_volt_data omap443x_vdd_mpu_volt_data[];
> +extern struct omap_volt_data omap443x_vdd_iva_volt_data[];
> +extern struct omap_volt_data omap443x_vdd_core_volt_data[];
> +extern struct omap_volt_data omap446x_vdd_mpu_volt_data[];
> +extern struct omap_volt_data omap446x_vdd_iva_volt_data[];
> +extern struct omap_volt_data omap446x_vdd_core_volt_data[];
>
>  #endif		/* __ARCH_ARM_MACH_OMAP2_OMAP_OPP_DATA_H */
> diff --git a/arch/arm/mach-omap2/opp4xxx_data.c b/arch/arm/mach-
> omap2/opp4xxx_data.c
> index 2293ba2..8c285e4 100644
> --- a/arch/arm/mach-omap2/opp4xxx_data.c
> +++ b/arch/arm/mach-omap2/opp4xxx_data.c
> @@ -1,7 +1,7 @@
>  /*
>   * OMAP4 OPP table definitions.
>   *
> - * Copyright (C) 2010 Texas Instruments Incorporated -
> http://www.ti.com/
> + * Copyright (C) 2010-2011 Texas Instruments Incorporated -
> http://www.ti.com/
>   *	Nishanth Menon
>   *	Kevin Hilman
>   *	Thara Gopinath
> @@ -36,7 +36,7 @@
>  #define OMAP4430_VDD_MPU_OPPTURBO_UV		1313000
>  #define OMAP4430_VDD_MPU_OPPNITRO_UV		1375000
>
> -struct omap_volt_data omap44xx_vdd_mpu_volt_data[] = {
> +struct omap_volt_data omap443x_vdd_mpu_volt_data[] = {
>  	VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPP50_UV,
> OMAP44XX_CONTROL_FUSE_MPU_OPP50, 0xf4, 0x0c),
>  	VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPP100_UV,
> OMAP44XX_CONTROL_FUSE_MPU_OPP100, 0xf9, 0x16),
>  	VOLT_DATA_DEFINE(OMAP4430_VDD_MPU_OPPTURBO_UV,
> OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO, 0xfa, 0x23),
> @@ -48,7 +48,7 @@ struct omap_volt_data omap44xx_vdd_mpu_volt_data[]
> = {
>  #define OMAP4430_VDD_IVA_OPP100_UV		1188000
>  #define OMAP4430_VDD_IVA_OPPTURBO_UV		1300000
>
> -struct omap_volt_data omap44xx_vdd_iva_volt_data[] = {
> +struct omap_volt_data omap443x_vdd_iva_volt_data[] = {
>  	VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPP50_UV,
> OMAP44XX_CONTROL_FUSE_IVA_OPP50, 0xf4, 0x0c),
>  	VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPP100_UV,
> OMAP44XX_CONTROL_FUSE_IVA_OPP100, 0xf9, 0x16),
>  	VOLT_DATA_DEFINE(OMAP4430_VDD_IVA_OPPTURBO_UV,
> OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO, 0xfa, 0x23),
> @@ -58,14 +58,14 @@ struct omap_volt_data
> omap44xx_vdd_iva_volt_data[] = {
>  #define OMAP4430_VDD_CORE_OPP50_UV		1025000
>  #define OMAP4430_VDD_CORE_OPP100_UV		1200000
>
> -struct omap_volt_data omap44xx_vdd_core_volt_data[] = {
> +struct omap_volt_data omap443x_vdd_core_volt_data[] = {
>  	VOLT_DATA_DEFINE(OMAP4430_VDD_CORE_OPP50_UV,
> OMAP44XX_CONTROL_FUSE_CORE_OPP50, 0xf4, 0x0c),
>  	VOLT_DATA_DEFINE(OMAP4430_VDD_CORE_OPP100_UV,
> OMAP44XX_CONTROL_FUSE_CORE_OPP100, 0xf9, 0x16),
>  	VOLT_DATA_DEFINE(0, 0, 0, 0),
>  };
>
>
> -static struct omap_opp_def __initdata omap44xx_opp_def_list[] = {
> +static struct omap_opp_def __initdata omap443x_opp_def_list[] = {
>  	/* MPU OPP1 - OPP50 */
>  	OPP_INITIALIZER("mpu", true, 300000000,
> OMAP4430_VDD_MPU_OPP50_UV),
>  	/* MPU OPP2 - OPP100 */
> @@ -87,6 +87,82 @@ static struct omap_opp_def __initdata
> omap44xx_opp_def_list[] = {
>  	/* TODO: add DSP, aess, fdif, gpu */
>  };
>
> +#define OMAP4460_VDD_MPU_OPP50_UV		1025000
> +#define OMAP4460_VDD_MPU_OPP100_UV		1200000
> +#define OMAP4460_VDD_MPU_OPPTURBO_UV		1313000
> +#define OMAP4460_VDD_MPU_OPPNITRO_UV		1375000
> +
> +struct omap_volt_data omap446x_vdd_mpu_volt_data[] = {
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPP50_UV,
> OMAP44XX_CONTROL_FUSE_MPU_OPP50, 0xf4, 0x0c),
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPP100_UV,
> OMAP44XX_CONTROL_FUSE_MPU_OPP100, 0xf9, 0x16),
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPPTURBO_UV,
> OMAP44XX_CONTROL_FUSE_MPU_OPPTURBO, 0xfa, 0x23),
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_MPU_OPPNITRO_UV,
> OMAP44XX_CONTROL_FUSE_MPU_OPPNITRO, 0xfa, 0x27),
> +	VOLT_DATA_DEFINE(0, 0, 0, 0),
> +};
> +
> +#define OMAP4460_VDD_IVA_OPP50_UV		1025000
> +#define OMAP4460_VDD_IVA_OPP100_UV		1200000
> +#define OMAP4460_VDD_IVA_OPPTURBO_UV		1313000
> +#define OMAP4460_VDD_IVA_OPPNITRO_UV		1375000
> +
> +struct omap_volt_data omap446x_vdd_iva_volt_data[] = {
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPP50_UV,
> OMAP44XX_CONTROL_FUSE_IVA_OPP50, 0xf4, 0x0c),
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPP100_UV,
> OMAP44XX_CONTROL_FUSE_IVA_OPP100, 0xf9, 0x16),
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPPTURBO_UV,
> OMAP44XX_CONTROL_FUSE_IVA_OPPTURBO, 0xfa, 0x23),
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_IVA_OPPNITRO_UV,
> OMAP44XX_CONTROL_FUSE_IVA_OPPNITRO, 0xfa, 0x23),
> +	VOLT_DATA_DEFINE(0, 0, 0, 0),
> +};
> +
> +#define OMAP4460_VDD_CORE_OPP50_UV		1025000
> +#define OMAP4460_VDD_CORE_OPP100_UV		1200000
> +#define OMAP4460_VDD_CORE_OPP100_OV_UV		1250000
> +
> +struct omap_volt_data omap446x_vdd_core_volt_data[] = {
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP50_UV,
> OMAP44XX_CONTROL_FUSE_CORE_OPP50, 0xf4, 0x0c),
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_UV,
> OMAP44XX_CONTROL_FUSE_CORE_OPP100, 0xf9, 0x16),
> +	VOLT_DATA_DEFINE(OMAP4460_VDD_CORE_OPP100_OV_UV,
> OMAP44XX_CONTROL_FUSE_CORE_OPP100OV, 0xf9, 0x16),
> +	VOLT_DATA_DEFINE(0, 0, 0, 0),
> +};
> +
> +static struct omap_opp_def __initdata omap446x_opp_def_list[] = {
> +	/* MPU OPP1 - OPP50 */
> +	OPP_INITIALIZER("mpu", true, 350000000,
> OMAP4460_VDD_MPU_OPP50_UV),
> +	/* MPU OPP2 - OPP100 */
> +	OPP_INITIALIZER("mpu", true, 700000000,
> OMAP4460_VDD_MPU_OPP100_UV),
> +	/* MPU OPP3 - OPP-Turbo */
> +	OPP_INITIALIZER("mpu", true, 920000000,
> OMAP4460_VDD_MPU_OPPTURBO_UV),
> +	/*
> +	 * MPU OPP4 - OPP-Nitro + Disabled as the reference schematics
> +	 * recommends TPS623631 - confirm and enable the opp in board
> file
> +	 * XXX: May be we should enable these based on mpu capability
> and
> +	 * Exception board files disable it...
> +	 */
> +	OPP_INITIALIZER("mpu", false, 1200000000,
> OMAP4460_VDD_MPU_OPPNITRO_UV),
> +	/* MPU OPP4 - OPP-Nitro SpeedBin */
> +	OPP_INITIALIZER("mpu", false, 1500000000,
> OMAP4460_VDD_MPU_OPPNITRO_UV),
> +	/* L3 OPP1 - OPP50 */
> +	OPP_INITIALIZER("l3_main_1", true, 100000000,
> OMAP4460_VDD_CORE_OPP50_UV),
> +	/* L3 OPP2 - OPP100 */
> +	OPP_INITIALIZER("l3_main_1", true, 200000000,
> OMAP4460_VDD_CORE_OPP100_UV),
> +	/* IVA OPP1 - OPP50 */
> +	OPP_INITIALIZER("iva", true, 133000000,
> OMAP4460_VDD_IVA_OPP50_UV),
> +	/* IVA OPP2 - OPP100 */
> +	OPP_INITIALIZER("iva", true, 266100000,
> OMAP4460_VDD_IVA_OPP100_UV),
> +	/*
> +	 * IVA OPP3 - OPP-Turbo + Disabled as the reference schematics
> +	 * recommends Phoenix VCORE2 which can supply only 600mA - so
> the ones
> +	 * above this OPP frequency, even though OMAP is capable,
> should be
> +	 * enabled by board file which is sure of the chip power
> capability
> +	 */
> +	OPP_INITIALIZER("iva", false, 332000000,
> OMAP4460_VDD_IVA_OPPTURBO_UV),
> +	/* IVA OPP4 - OPP-Nitro */
> +	OPP_INITIALIZER("iva", false, 430000000,
> OMAP4460_VDD_IVA_OPPNITRO_UV),
> +	/* IVA OPP5 - OPP-Nitro SpeedBin*/
> +	OPP_INITIALIZER("iva", false, 500000000,
> OMAP4460_VDD_IVA_OPPNITRO_UV),
> +
> +	/* TODO: add DSP, aess, fdif, gpu */
> +};
> +
>  /**
>   * omap4_opp_init() - initialize omap4 opp table
>   */
> @@ -96,10 +172,12 @@ int __init omap4_opp_init(void)
>
>  	if (!cpu_is_omap44xx())
>  		return r;
> -
> -	r = omap_init_opp_table(omap44xx_opp_def_list,
> -			ARRAY_SIZE(omap44xx_opp_def_list));
> -
> +	if (cpu_is_omap443x())
> +		r = omap_init_opp_table(omap443x_opp_def_list,
> +			ARRAY_SIZE(omap443x_opp_def_list));
> +	else if (cpu_is_omap446x())
> +		r = omap_init_opp_table(omap446x_opp_def_list,
> +			ARRAY_SIZE(omap446x_opp_def_list));
>  	return r;
>  }
>  device_initcall(omap4_opp_init);
> diff --git a/arch/arm/mach-omap2/voltagedomains44xx_data.c
> b/arch/arm/mach-omap2/voltagedomains44xx_data.c
> index cb64996..f516cfe 100644
> --- a/arch/arm/mach-omap2/voltagedomains44xx_data.c
> +++ b/arch/arm/mach-omap2/voltagedomains44xx_data.c
> @@ -91,9 +91,17 @@ static int __init
> omap44xx_voltage_early_init(void)
>  	 * XXX Will depend on the process, validation, and binning
>  	 * for the currently-running IC
>  	 */
> -	omap4_vdd_mpu_info.volt_data = omap44xx_vdd_mpu_volt_data;
> -	omap4_vdd_iva_info.volt_data = omap44xx_vdd_iva_volt_data;
> -	omap4_vdd_core_info.volt_data = omap44xx_vdd_core_volt_data;
> +	if (cpu_is_omap443x()) {
> +		omap4_vdd_mpu_info.volt_data =
> omap443x_vdd_mpu_volt_data;
> +		omap4_vdd_iva_info.volt_data =
> omap443x_vdd_iva_volt_data;
> +		omap4_vdd_core_info.volt_data =
> omap443x_vdd_core_volt_data;
> +	} else if (cpu_is_omap446x()) {
> +		omap4_vdd_mpu_info.volt_data =
> omap446x_vdd_mpu_volt_data;
> +		omap4_vdd_iva_info.volt_data =
> omap446x_vdd_iva_volt_data;
> +		omap4_vdd_core_info.volt_data =
> omap446x_vdd_core_volt_data;
> +	} else {
> +		return -ENODATA;
> +	}
>
>  	return omap_voltage_early_init(prm_mod, prm_irqst_ocp_mod,
>  				       omap4_vdd_info,
> --
> 1.7.0.4

[PATCH 1/1] OMAPDSS: Return right error during connector probe

[Sathya Prakash M R]

While using HDMI connector driver with sil9022 encoder
came across issue where connector driver is probed first.
This resulted in error. A deffered probe solved this.
Most connector drivers need a encoder driver as their
video source. This patch ensures we do a probe defferal
if video source is not present for connector drivers.

Signed-off-by: Sathya Prakash M R <sathyap@ti.com>
---
 .../video/omap2/displays-new/connector-analog-tv.c |    2 +-
 drivers/video/omap2/displays-new/connector-dvi.c   |    2 +-
 drivers/video/omap2/displays-new/connector-hdmi.c  |    2 +-
 3 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/video/omap2/displays-new/connector-analog-tv.c b/drivers/video/omap2/displays-new/connector-analog-tv.c
index 5338f36..547a604 100644
--- a/drivers/video/omap2/displays-new/connector-analog-tv.c
+++ b/drivers/video/omap2/displays-new/connector-analog-tv.c
@@ -177,7 +177,7 @@ static int tvc_probe_pdata(struct platform_device *pdev)
 	in = omap_dss_find_output(pdata->source);
 	if (in == NULL) {
 		dev_err(&pdev->dev, "Failed to find video source\n");
-		return -ENODEV;
+		return -EPROBE_DEFER;
 	}
 
 	ddata->in = in;
diff --git a/drivers/video/omap2/displays-new/connector-dvi.c b/drivers/video/omap2/displays-new/connector-dvi.c
index bc5f8ce..63d88ee 100644
--- a/drivers/video/omap2/displays-new/connector-dvi.c
+++ b/drivers/video/omap2/displays-new/connector-dvi.c
@@ -263,7 +263,7 @@ static int dvic_probe_pdata(struct platform_device *pdev)
 	in = omap_dss_find_output(pdata->source);
 	if (in == NULL) {
 		dev_err(&pdev->dev, "Failed to find video source\n");
-		return -ENODEV;
+		return -EPROBE_DEFER;
 	}
 
 	ddata->in = in;
diff --git a/drivers/video/omap2/displays-new/connector-hdmi.c b/drivers/video/omap2/displays-new/connector-hdmi.c
index c582671..9abe2c0 100644
--- a/drivers/video/omap2/displays-new/connector-hdmi.c
+++ b/drivers/video/omap2/displays-new/connector-hdmi.c
@@ -290,7 +290,7 @@ static int hdmic_probe_pdata(struct platform_device *pdev)
 	in = omap_dss_find_output(pdata->source);
 	if (in == NULL) {
 		dev_err(&pdev->dev, "Failed to find video source\n");
-		return -ENODEV;
+		return -EPROBE_DEFER;
 	}
 
 	ddata->in = in;
-- 
1.7.9.5

Re: [PATCH 1/1] OMAPDSS: Return right error during connector probe

[Tomi Valkeinen]

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On 12/09/13 11:42, Sathya Prakash M R wrote:
> While using HDMI connector driver with sil9022 encoder
> came across issue where connector driver is probed first.
> This resulted in error. A deffered probe solved this.
> Most connector drivers need a encoder driver as their
> video source. This patch ensures we do a probe defferal
> if video source is not present for connector drivers.
> 
> Signed-off-by: Sathya Prakash M R <sathyap@ti.com>

Thanks, applying to 3.12 fixes.

 Tomi



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