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* [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
@ 2016-01-07  9:16 Yoshihiro Shimoda
  2016-01-09 22:33 ` Rob Herring
  0 siblings, 1 reply; 6+ messages in thread
From: Yoshihiro Shimoda @ 2016-01-07  9:16 UTC (permalink / raw)
  To: kishon, robh+dt, pawel.moll, mark.rutland, ijc+devicetree, galak
  Cc: linux-kernel, devicetree, linux-sh, Yoshihiro Shimoda

Since the related driver (CPG/MSSR driver) only manages the first module
clock, this driver should not handle the HSUSB registers. So, this patch
removes the HSUSB registers handling.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
---
 This patch is based on the linux-phy / next branch.
 (commit id = 9955a7835bf376e12482583958b2661f501b868b)

 .../devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 15 ++--
 drivers/phy/phy-rcar-gen3-usb2.c                   | 83 +++-------------------
 2 files changed, 15 insertions(+), 83 deletions(-)

diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
index 2390e4e..eaf7e9b 100644
--- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
+++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
@@ -7,33 +7,26 @@ Required properties:
 - compatible: "renesas,usb2-phy-r8a7795" if the device is a part of an R8A7795
 	      SoC.
 - reg: offset and length of the partial USB 2.0 Host register block.
-- reg-names: must be "usb2_host".
 - clocks: clock phandle and specifier pair(s).
 - #phy-cells: see phy-bindings.txt in the same directory, must be <0>.
 
 Optional properties:
 To use a USB channel where USB 2.0 Host and HSUSB (USB 2.0 Peripheral) are
-combined, the device tree node should set HSUSB properties to reg and reg-names
-properties. This is because HSUSB has registers to select USB 2.0 host or
-peripheral at that channel:
-- reg: offset and length of the partial HSUSB register block.
-- reg-names: must be "hsusb".
+combined, the device tree node should set interrupt properties to use the
+channel as USB OTG:
 - interrupts: interrupt specifier for the PHY.
 
 Example (R-Car H3):
 
 	usb-phy@ee080200 {
 		compatible = "renesas,usb2-phy-r8a7795";
-		reg = <0 0xee080200 0 0x700>, <0 0xe6590100 0 0x100>;
-		reg-names = "usb2_host", "hsusb";
+		reg = <0 0xee080200 0 0x700>;
 		interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
-		clocks = <&mstp7_clks R8A7795_CLK_EHCI0>,
-			 <&mstp7_clks R8A7795_CLK_HSUSB>;
+		clocks = <&mstp7_clks R8A7795_CLK_EHCI0>;
 	};
 
 	usb-phy@ee0a0200 {
 		compatible = "renesas,usb2-phy-r8a7795";
 		reg = <0 0xee0a0200 0 0x700>;
-		reg-names = "usb2_host";
 		clocks = <&mstp7_clks R8A7795_CLK_EHCI0>;
 	};
diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c
index ef332ef..bc4f7dd 100644
--- a/drivers/phy/phy-rcar-gen3-usb2.c
+++ b/drivers/phy/phy-rcar-gen3-usb2.c
@@ -74,20 +74,6 @@
 #define USB2_ADPCTRL_IDPULLUP		BIT(5)	/* 1 = ID sampling is enabled */
 #define USB2_ADPCTRL_DRVVBUS		BIT(4)
 
-/******* HSUSB registers (original offset is +0x100) *******/
-#define HSUSB_LPSTS			0x02
-#define HSUSB_UGCTRL2			0x84
-
-/* Low Power Status register (LPSTS) */
-#define HSUSB_LPSTS_SUSPM		0x4000
-
-/* USB General control register 2 (UGCTRL2) */
-#define HSUSB_UGCTRL2_MASK		0x00000031 /* bit[31:6] should be 0 */
-#define HSUSB_UGCTRL2_USB0SEL		0x00000030
-#define HSUSB_UGCTRL2_USB0SEL_HOST	0x00000010
-#define HSUSB_UGCTRL2_USB0SEL_HS_USB	0x00000020
-#define HSUSB_UGCTRL2_USB0SEL_OTG	0x00000030
-
 struct rcar_gen3_data {
 	void __iomem *base;
 	struct clk *clk;
@@ -95,8 +81,8 @@ struct rcar_gen3_data {
 
 struct rcar_gen3_chan {
 	struct rcar_gen3_data usb2;
-	struct rcar_gen3_data hsusb;
 	struct phy *phy;
+	bool has_otg;
 };
 
 static void rcar_gen3_set_host_mode(struct rcar_gen3_chan *ch, int host)
@@ -202,24 +188,15 @@ static int rcar_gen3_phy_usb2_init(struct phy *p)
 {
 	struct rcar_gen3_chan *channel = phy_get_drvdata(p);
 	void __iomem *usb2_base = channel->usb2.base;
-	void __iomem *hsusb_base = channel->hsusb.base;
-	u32 val;
 
 	/* Initialize USB2 part */
 	writel(USB2_INT_ENABLE_INIT, usb2_base + USB2_INT_ENABLE);
 	writel(USB2_SPD_RSM_TIMSET_INIT, usb2_base + USB2_SPD_RSM_TIMSET);
 	writel(USB2_OC_TIMSET_INIT, usb2_base + USB2_OC_TIMSET);
 
-	/* Initialize HSUSB part */
-	if (hsusb_base) {
-		val = readl(hsusb_base + HSUSB_UGCTRL2);
-		val = (val & ~HSUSB_UGCTRL2_USB0SEL) |
-		      HSUSB_UGCTRL2_USB0SEL_OTG;
-		writel(val & HSUSB_UGCTRL2_MASK, hsusb_base + HSUSB_UGCTRL2);
-
-		/* Initialize otg part */
+	/* Initialize otg part */
+	if (channel->has_otg)
 		rcar_gen3_init_otg(channel);
-	}
 
 	return 0;
 }
@@ -237,7 +214,6 @@ static int rcar_gen3_phy_usb2_power_on(struct phy *p)
 {
 	struct rcar_gen3_chan *channel = phy_get_drvdata(p);
 	void __iomem *usb2_base = channel->usb2.base;
-	void __iomem *hsusb_base = channel->hsusb.base;
 	u32 val;
 
 	val = readl(usb2_base + USB2_USBCTR);
@@ -246,33 +222,6 @@ static int rcar_gen3_phy_usb2_power_on(struct phy *p)
 	val &= ~USB2_USBCTR_PLL_RST;
 	writel(val, usb2_base + USB2_USBCTR);
 
-	/*
-	 * TODO: To reduce power consuming, this driver should set the SUSPM
-	 *	after the PHY detects ID pin as peripheral.
-	 */
-	if (hsusb_base) {
-		/* Power on HSUSB PHY */
-		val = readw(hsusb_base + HSUSB_LPSTS);
-		val |= HSUSB_LPSTS_SUSPM;
-		writew(val, hsusb_base + HSUSB_LPSTS);
-	}
-
-	return 0;
-}
-
-static int rcar_gen3_phy_usb2_power_off(struct phy *p)
-{
-	struct rcar_gen3_chan *channel = phy_get_drvdata(p);
-	void __iomem *hsusb_base = channel->hsusb.base;
-	u32 val;
-
-	if (hsusb_base) {
-		/* Power off HSUSB PHY */
-		val = readw(hsusb_base + HSUSB_LPSTS);
-		val &= ~HSUSB_LPSTS_SUSPM;
-		writew(val, hsusb_base + HSUSB_LPSTS);
-	}
-
 	return 0;
 }
 
@@ -280,7 +229,6 @@ static struct phy_ops rcar_gen3_phy_usb2_ops = {
 	.init		= rcar_gen3_phy_usb2_init,
 	.exit		= rcar_gen3_phy_usb2_exit,
 	.power_on	= rcar_gen3_phy_usb2_power_on,
-	.power_off	= rcar_gen3_phy_usb2_power_off,
 	.owner		= THIS_MODULE,
 };
 
@@ -313,6 +261,7 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
 	struct rcar_gen3_chan *channel;
 	struct phy_provider *provider;
 	struct resource *res;
+	int irq;
 
 	if (!dev->of_node) {
 		dev_err(dev, "This driver needs device tree\n");
@@ -323,29 +272,19 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
 	if (!channel)
 		return -ENOMEM;
 
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "usb2_host");
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
 	channel->usb2.base = devm_ioremap_resource(dev, res);
 	if (IS_ERR(channel->usb2.base))
 		return PTR_ERR(channel->usb2.base);
 
-	/* "hsusb" memory resource is optional */
-	res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "hsusb");
-
-	/* To avoid error message by devm_ioremap_resource() */
-	if (res) {
-		int irq;
-
-		channel->hsusb.base = devm_ioremap_resource(dev, res);
-		if (IS_ERR(channel->hsusb.base))
-			channel->hsusb.base = NULL;
-		/* call request_irq for OTG */
-		irq = platform_get_irq(pdev, 0);
-		if (irq >= 0)
-			irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq,
-					       IRQF_SHARED, dev_name(dev),
-					       channel);
+	/* call request_irq for OTG */
+	irq = platform_get_irq(pdev, 0);
+	if (irq >= 0) {
+		irq = devm_request_irq(dev, irq, rcar_gen3_phy_usb2_irq,
+				       IRQF_SHARED, dev_name(dev), channel);
 		if (irq < 0)
 			dev_err(dev, "No irq handler (%d)\n", irq);
+		channel->has_otg = true;
 	}
 
 	/* devm_phy_create() will call pm_runtime_enable(dev); */
-- 
1.9.1


^ permalink raw reply related	[flat|nested] 6+ messages in thread

* Re: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
  2016-01-07  9:16 [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling Yoshihiro Shimoda
@ 2016-01-09 22:33 ` Rob Herring
  2016-02-02  8:29   ` Yoshihiro Shimoda
  2016-02-23  6:24   ` Yoshihiro Shimoda
  0 siblings, 2 replies; 6+ messages in thread
From: Rob Herring @ 2016-01-09 22:33 UTC (permalink / raw)
  To: Yoshihiro Shimoda
  Cc: kishon, pawel.moll, mark.rutland, ijc+devicetree, galak,
	linux-kernel, devicetree, linux-sh

On Thu, Jan 07, 2016 at 06:16:44PM +0900, Yoshihiro Shimoda wrote:
> Since the related driver (CPG/MSSR driver) only manages the first module
> clock, this driver should not handle the HSUSB registers. So, this patch
> removes the HSUSB registers handling.
> 
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> ---
>  This patch is based on the linux-phy / next branch.
>  (commit id = 9955a7835bf376e12482583958b2661f501b868b)
> 
>  .../devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 15 ++--

Acked-by: Rob Herring <robh@kernel.org>

>  drivers/phy/phy-rcar-gen3-usb2.c                   | 83 +++-------------------
>  2 files changed, 15 insertions(+), 83 deletions(-)

^ permalink raw reply	[flat|nested] 6+ messages in thread

* RE: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
  2016-01-09 22:33 ` Rob Herring
@ 2016-02-02  8:29   ` Yoshihiro Shimoda
  2016-02-23  6:24   ` Yoshihiro Shimoda
  1 sibling, 0 replies; 6+ messages in thread
From: Yoshihiro Shimoda @ 2016-02-02  8:29 UTC (permalink / raw)
  To: kishon
  Cc: pawel.moll, mark.rutland, ijc+devicetree, galak, linux-kernel,
	devicetree, linux-sh, Rob Herring, linux-renesas-soc

Hi Kishon,

Would you review this patch?
I checked the latest linux-phy.git / next branch today, and it is the same as the following.

> >  This patch is based on the linux-phy / next branch.
> >  (commit id = 9955a7835bf376e12482583958b2661f501b868b)

Best regards,
Yoshihiro Shimoda

> From: Rob Herring [mailto:robh@kernel.org]
> Sent: Sunday, January 10, 2016 7:33 AM
> To: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> Cc: kishon@ti.com; pawel.moll@arm.com; mark.rutland@arm.com; ijc+devicetree@hellion.org.uk; galak@codeaurora.org;
> linux-kernel@vger.kernel.org; devicetree@vger.kernel.org; linux-sh@vger.kernel.org
> Subject: Re: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
> 
> On Thu, Jan 07, 2016 at 06:16:44PM +0900, Yoshihiro Shimoda wrote:
> > Since the related driver (CPG/MSSR driver) only manages the first module
> > clock, this driver should not handle the HSUSB registers. So, this patch
> > removes the HSUSB registers handling.
> >
> > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> > ---
> >  This patch is based on the linux-phy / next branch.
> >  (commit id = 9955a7835bf376e12482583958b2661f501b868b)
> >
> >  .../devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 15 ++--
> 
> Acked-by: Rob Herring <robh@kernel.org>
> 
> >  drivers/phy/phy-rcar-gen3-usb2.c                   | 83 +++-------------------
> >  2 files changed, 15 insertions(+), 83 deletions(-)
> 

^ permalink raw reply	[flat|nested] 6+ messages in thread

* RE: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
  2016-01-09 22:33 ` Rob Herring
  2016-02-02  8:29   ` Yoshihiro Shimoda
@ 2016-02-23  6:24   ` Yoshihiro Shimoda
  2016-02-23  6:37     ` Kishon Vijay Abraham I
  1 sibling, 1 reply; 6+ messages in thread
From: Yoshihiro Shimoda @ 2016-02-23  6:24 UTC (permalink / raw)
  To: kishon
  Cc: pawel.moll, mark.rutland, ijc+devicetree, galak, linux-kernel,
	devicetree, linux-sh, Rob Herring, linux-renesas-soc

Hi Kishon,

Would you review this patch?

I checked the latest linux-phy.git / next branch today,
this patch can be applied on the top of branch.

commit 6b825eb7323a634cdd1014a4aa9a8ff07cf8040c
Author: Heiko Stuebner <heiko@sntech.de>
Date:   Mon Feb 22 12:55:01 2016 +0100

    phy: rockchip-usb: add handler for usb-uart functionality

Best regards,
Yoshihiro Shimoda

> -----Original Message-----
> From: Yoshihiro Shimoda
> Sent: Tuesday, February 02, 2016 5:29 PM
> To: kishon@ti.com
> Cc: pawel.moll@arm.com; mark.rutland@arm.com; ijc+devicetree@hellion.org.uk; galak@codeaurora.org;
> linux-kernel@vger.kernel.org; devicetree@vger.kernel.org; linux-sh@vger.kernel.org; 'Rob Herring' <robh@kernel.org>;
> linux-renesas-soc@vger.kernel.org
> Subject: RE: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
> 
> Hi Kishon,
> 
> Would you review this patch?
> I checked the latest linux-phy.git / next branch today, and it is the same as the following.
> 
> > >  This patch is based on the linux-phy / next branch.
> > >  (commit id = 9955a7835bf376e12482583958b2661f501b868b)
> 
> Best regards,
> Yoshihiro Shimoda
> 
> > From: Rob Herring [mailto:robh@kernel.org]
> > Sent: Sunday, January 10, 2016 7:33 AM
> > To: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> > Cc: kishon@ti.com; pawel.moll@arm.com; mark.rutland@arm.com; ijc+devicetree@hellion.org.uk; galak@codeaurora.org;
> > linux-kernel@vger.kernel.org; devicetree@vger.kernel.org; linux-sh@vger.kernel.org
> > Subject: Re: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
> >
> > On Thu, Jan 07, 2016 at 06:16:44PM +0900, Yoshihiro Shimoda wrote:
> > > Since the related driver (CPG/MSSR driver) only manages the first module
> > > clock, this driver should not handle the HSUSB registers. So, this patch
> > > removes the HSUSB registers handling.
> > >
> > > Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> > > ---
> > >  This patch is based on the linux-phy / next branch.
> > >  (commit id = 9955a7835bf376e12482583958b2661f501b868b)
> > >
> > >  .../devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 15 ++--
> >
> > Acked-by: Rob Herring <robh@kernel.org>
> >
> > >  drivers/phy/phy-rcar-gen3-usb2.c                   | 83 +++-------------------
> > >  2 files changed, 15 insertions(+), 83 deletions(-)
> >

^ permalink raw reply	[flat|nested] 6+ messages in thread

* Re: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
  2016-02-23  6:24   ` Yoshihiro Shimoda
@ 2016-02-23  6:37     ` Kishon Vijay Abraham I
  2016-02-23  7:11       ` Yoshihiro Shimoda
  0 siblings, 1 reply; 6+ messages in thread
From: Kishon Vijay Abraham I @ 2016-02-23  6:37 UTC (permalink / raw)
  To: Yoshihiro Shimoda
  Cc: pawel.moll, mark.rutland, ijc+devicetree, galak, linux-kernel,
	devicetree, linux-sh, Rob Herring, linux-renesas-soc

Hi,

On Tuesday 23 February 2016 11:54 AM, Yoshihiro Shimoda wrote:
> Hi Kishon,
> 
> Would you review this patch?

merged it now. Thanks for reminding.

-Kishon

> 
> I checked the latest linux-phy.git / next branch today,
> this patch can be applied on the top of branch.
> 
> commit 6b825eb7323a634cdd1014a4aa9a8ff07cf8040c
> Author: Heiko Stuebner <heiko@sntech.de>
> Date:   Mon Feb 22 12:55:01 2016 +0100
> 
>     phy: rockchip-usb: add handler for usb-uart functionality
> 
> Best regards,
> Yoshihiro Shimoda
> 
>> -----Original Message-----
>> From: Yoshihiro Shimoda
>> Sent: Tuesday, February 02, 2016 5:29 PM
>> To: kishon@ti.com
>> Cc: pawel.moll@arm.com; mark.rutland@arm.com; ijc+devicetree@hellion.org.uk; galak@codeaurora.org;
>> linux-kernel@vger.kernel.org; devicetree@vger.kernel.org; linux-sh@vger.kernel.org; 'Rob Herring' <robh@kernel.org>;
>> linux-renesas-soc@vger.kernel.org
>> Subject: RE: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
>>
>> Hi Kishon,
>>
>> Would you review this patch?
>> I checked the latest linux-phy.git / next branch today, and it is the same as the following.
>>
>>>>  This patch is based on the linux-phy / next branch.
>>>>  (commit id = 9955a7835bf376e12482583958b2661f501b868b)
>>
>> Best regards,
>> Yoshihiro Shimoda
>>
>>> From: Rob Herring [mailto:robh@kernel.org]
>>> Sent: Sunday, January 10, 2016 7:33 AM
>>> To: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
>>> Cc: kishon@ti.com; pawel.moll@arm.com; mark.rutland@arm.com; ijc+devicetree@hellion.org.uk; galak@codeaurora.org;
>>> linux-kernel@vger.kernel.org; devicetree@vger.kernel.org; linux-sh@vger.kernel.org
>>> Subject: Re: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
>>>
>>> On Thu, Jan 07, 2016 at 06:16:44PM +0900, Yoshihiro Shimoda wrote:
>>>> Since the related driver (CPG/MSSR driver) only manages the first module
>>>> clock, this driver should not handle the HSUSB registers. So, this patch
>>>> removes the HSUSB registers handling.
>>>>
>>>> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
>>>> ---
>>>>  This patch is based on the linux-phy / next branch.
>>>>  (commit id = 9955a7835bf376e12482583958b2661f501b868b)
>>>>
>>>>  .../devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 15 ++--
>>>
>>> Acked-by: Rob Herring <robh@kernel.org>
>>>
>>>>  drivers/phy/phy-rcar-gen3-usb2.c                   | 83 +++-------------------
>>>>  2 files changed, 15 insertions(+), 83 deletions(-)
>>>
> 

^ permalink raw reply	[flat|nested] 6+ messages in thread

* RE: [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling
  2016-02-23  6:37     ` Kishon Vijay Abraham I
@ 2016-02-23  7:11       ` Yoshihiro Shimoda
  0 siblings, 0 replies; 6+ messages in thread
From: Yoshihiro Shimoda @ 2016-02-23  7:11 UTC (permalink / raw)
  To: Kishon Vijay Abraham I
  Cc: pawel.moll, mark.rutland, ijc+devicetree, galak, linux-kernel,
	devicetree, linux-sh, Rob Herring, linux-renesas-soc

Hi,

> Hi,
> 
> On Tuesday 23 February 2016 11:54 AM, Yoshihiro Shimoda wrote:
> > Hi Kishon,
> >
> > Would you review this patch?
> 
> merged it now. Thanks for reminding.

Thank you!

Best regards,
Yoshihiro Shimoda

> -Kishon
> 

^ permalink raw reply	[flat|nested] 6+ messages in thread

end of thread, other threads:[~2016-02-23  7:11 UTC | newest]

Thread overview: 6+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2016-01-07  9:16 [PATCH] phy: rcar-gen3-usb2: remove HSUSB registers handling Yoshihiro Shimoda
2016-01-09 22:33 ` Rob Herring
2016-02-02  8:29   ` Yoshihiro Shimoda
2016-02-23  6:24   ` Yoshihiro Shimoda
2016-02-23  6:37     ` Kishon Vijay Abraham I
2016-02-23  7:11       ` Yoshihiro Shimoda

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