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Groups > linux.kernel > #1279491 > unrolled thread
| Started by | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> |
|---|---|
| First post | 2015-11-30 02:50 +0100 |
| Last post | 2015-11-30 18:20 +0100 |
| Articles | 3 — 2 participants |
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[PATCH v6 0/4] phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> - 2015-11-30 02:50 +0100
Re: [PATCH v6 1/4] phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver Rob Herring <robh@kernel.org> - 2015-11-30 18:10 +0100
Re: [PATCH v6 3/4] phy: rcar-gen3-usb2: add runtime ID/VBUS pin detection Rob Herring <robh@kernel.org> - 2015-11-30 18:20 +0100
| From | Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com> |
|---|---|
| Date | 2015-11-30 02:50 +0100 |
| Subject | [PATCH v6 0/4] phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver |
| Message-ID | <qAlLj-5ll-1@gated-at.bofh.it> |
This patch is based on the latest linux-phy / next branch.
(commit id = 8005c49d9aea74d382f474ce11afbbc7d7130bec)
Changes from v5:
- Minor modify the rcar_gen3_phy_usb2_probe() in patch 1.
- Rebase the latest linux-phy / next branch.
Changes from v4:
- Modify Kconfig to "depends on OF && ARCH_SHMOBILE".
- Modify Kconfig to "select GENERIC_PHY" instead of "depends on GENERIC_PHY".
- Modify device tree documentation about "reg" of example.
- Remove spinlock handling because phy-core driver calls mutex_lock().
- Change valiable name to val instead of tmp.
- Remove dev_set_drvdata.
- Use dev_vdbg() instead of dev_dbg().
- Change rcar_gen3_device_recognition()'s condition as one line.
- Remove unnecessary value in rcar_gen3_phy_usb2_probe().
- Modify MAINTAINERS about this driver.
Changes from v3:
- Shorten structure names to avoid new line if we add a long function name.
- Add ID/VBUS pin detection for peripheral mode.
Changes from v2:
- Modify Kconfig to add "depends on OF" and "depends on ARCH_SHMOBILE".
- Add more information in the dt document.
- Change reg-names from "usb2" to "usb2_host".
Changes from v1:
- Revise some typos.
- Remove using clk API to enable/disable the clocks.
(In other words, this driver expects to enable/disable the clocks by
Runtime PM API by the phy-core driver.)
- Remove an unnecessary header file (asm/cmpxchg.h).
Yoshihiro Shimoda (4):
phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver
phy: rcar-gen3-usb2: change the mode to OTG on the combined channel
phy: rcar-gen3-usb2: add runtime ID/VBUS pin detection
MAINTAINERS: add Renesas usb2 phy driver
.../devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 39 +++
MAINTAINERS | 6 +
drivers/phy/Kconfig | 7 +
drivers/phy/Makefile | 1 +
drivers/phy/phy-rcar-gen3-usb2.c | 378 +++++++++++++++++++++
5 files changed, 431 insertions(+)
create mode 100644 Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
create mode 100644 drivers/phy/phy-rcar-gen3-usb2.c
--
1.9.1
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| From | Rob Herring <robh@kernel.org> |
|---|---|
| Date | 2015-11-30 18:10 +0100 |
| Subject | Re: [PATCH v6 1/4] phy: rcar-gen3-usb2: Add R-Car Gen3 USB2 PHY driver |
| Message-ID | <qAA7D-6si-11@gated-at.bofh.it> |
| In reply to | #1279491 |
On Mon, Nov 30, 2015 at 10:44:30AM +0900, Yoshihiro Shimoda wrote:
> This patch adds support for R-Car generation 3 USB2 PHY driver.
> This SoC has 3 EHCI/OHCI channels, and the channel 0 is shared
> with the HSUSB (USB2.0 peripheral) device. And each channel has
> independent registers about the PHYs.
>
> So, the purpose of this driver is:
> 1) initializes some registers of SoC specific to use the
> {ehci,ohci}-platform driver.
>
> 2) detects id pin to select host or peripheral on the channel 0.
>
> For now, this driver only supports 1) above.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> ---
> .../devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 37 ++++
For the binding:
Acked-by: Rob Herring <robh@kernel.org>
> drivers/phy/Kconfig | 7 +
> drivers/phy/Makefile | 1 +
> drivers/phy/phy-rcar-gen3-usb2.c | 217 +++++++++++++++++++++
> 4 files changed, 262 insertions(+)
> create mode 100644 Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
> create mode 100644 drivers/phy/phy-rcar-gen3-usb2.c
>
> diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
> new file mode 100644
> index 0000000..affa0f7
> --- /dev/null
> +++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
> @@ -0,0 +1,37 @@
> +* Renesas R-Car generation 3 USB 2.0 PHY
> +
> +This file provides information on what the device node for the R-Car generation
> +3 USB 2.0 PHY contains.
> +
> +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".
> +
> +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";
> + clocks = <&mstp7_clks R8A7795_CLK_EHCI0>,
> + <&mstp7_clks R8A7795_CLK_HSUSB>;
> + };
> +
> + 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/Kconfig b/drivers/phy/Kconfig
> index 7eb5859d..e9ab088 100644
> --- a/drivers/phy/Kconfig
> +++ b/drivers/phy/Kconfig
> @@ -118,6 +118,13 @@ config PHY_RCAR_GEN2
> help
> Support for USB PHY found on Renesas R-Car generation 2 SoCs.
>
> +config PHY_RCAR_GEN3_USB2
> + tristate "Renesas R-Car generation 3 USB 2.0 PHY driver"
> + depends on OF && ARCH_SHMOBILE
> + select GENERIC_PHY
> + help
> + Support for USB 2.0 PHY found on Renesas R-Car generation 3 SoCs.
> +
> config OMAP_CONTROL_PHY
> tristate "OMAP CONTROL PHY Driver"
> depends on ARCH_OMAP2PLUS || COMPILE_TEST
> diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
> index 075db1a..91d7a62 100644
> --- a/drivers/phy/Makefile
> +++ b/drivers/phy/Makefile
> @@ -17,6 +17,7 @@ obj-$(CONFIG_PHY_MVEBU_SATA) += phy-mvebu-sata.o
> obj-$(CONFIG_PHY_MIPHY28LP) += phy-miphy28lp.o
> obj-$(CONFIG_PHY_MIPHY365X) += phy-miphy365x.o
> obj-$(CONFIG_PHY_RCAR_GEN2) += phy-rcar-gen2.o
> +obj-$(CONFIG_PHY_RCAR_GEN3_USB2) += phy-rcar-gen3-usb2.o
> obj-$(CONFIG_OMAP_CONTROL_PHY) += phy-omap-control.o
> obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o
> obj-$(CONFIG_TI_PIPE3) += phy-ti-pipe3.o
> diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c
> new file mode 100644
> index 0000000..2696152
> --- /dev/null
> +++ b/drivers/phy/phy-rcar-gen3-usb2.c
> @@ -0,0 +1,217 @@
> +/*
> + * Renesas R-Car Gen3 for USB2.0 PHY driver
> + *
> + * Copyright (C) 2015 Renesas Electronics Corporation
> + *
> + * This is based on the phy-rcar-gen2 driver:
> + * Copyright (C) 2014 Renesas Solutions Corp.
> + * Copyright (C) 2014 Cogent Embedded, Inc.
> + *
> + * This program is free software; you can redistribute it and/or modify
> + * it under the terms of the GNU General Public License version 2 as
> + * published by the Free Software Foundation.
> + */
> +
> +#include <linux/io.h>
> +#include <linux/module.h>
> +#include <linux/of.h>
> +#include <linux/of_address.h>
> +#include <linux/phy/phy.h>
> +#include <linux/platform_device.h>
> +
> +/******* USB2.0 Host registers (original offset is +0x200) *******/
> +#define USB2_INT_ENABLE 0x000
> +#define USB2_USBCTR 0x00c
> +#define USB2_SPD_RSM_TIMSET 0x10c
> +#define USB2_OC_TIMSET 0x110
> +
> +/* INT_ENABLE */
> +#define USB2_INT_ENABLE_USBH_INTB_EN BIT(2)
> +#define USB2_INT_ENABLE_USBH_INTA_EN BIT(1)
> +#define USB2_INT_ENABLE_INIT (USB2_INT_ENABLE_USBH_INTB_EN | \
> + USB2_INT_ENABLE_USBH_INTA_EN)
> +
> +/* USBCTR */
> +#define USB2_USBCTR_DIRPD BIT(2)
> +#define USB2_USBCTR_PLL_RST BIT(1)
> +
> +/* SPD_RSM_TIMSET */
> +#define USB2_SPD_RSM_TIMSET_INIT 0x014e029b
> +
> +/* OC_TIMSET */
> +#define USB2_OC_TIMSET_INIT 0x000209ab
> +
> +/******* 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;
> +};
> +
> +struct rcar_gen3_chan {
> + struct rcar_gen3_data usb2;
> + struct rcar_gen3_data hsusb;
> + struct phy *phy;
> +};
> +
> +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) {
> + /* TODO: support "OTG" mode */
> + val = readl(hsusb_base + HSUSB_UGCTRL2);
> + val = (val & ~HSUSB_UGCTRL2_USB0SEL) |
> + HSUSB_UGCTRL2_USB0SEL_HOST;
> + writel(val & HSUSB_UGCTRL2_MASK, hsusb_base + HSUSB_UGCTRL2);
> + }
> +
> + return 0;
> +}
> +
> +static int rcar_gen3_phy_usb2_exit(struct phy *p)
> +{
> + struct rcar_gen3_chan *channel = phy_get_drvdata(p);
> +
> + writel(0, channel->usb2.base + USB2_INT_ENABLE);
> +
> + return 0;
> +}
> +
> +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);
> + val |= USB2_USBCTR_PLL_RST;
> + writel(val, usb2_base + USB2_USBCTR);
> + 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;
> +}
> +
> +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,
> +};
> +
> +static const struct of_device_id rcar_gen3_phy_usb2_match_table[] = {
> + { .compatible = "renesas,usb2-phy-r8a7795" },
> + { }
> +};
> +MODULE_DEVICE_TABLE(of, rcar_gen3_phy_usb2_match_table);
> +
> +static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
> +{
> + struct device *dev = &pdev->dev;
> + struct rcar_gen3_chan *channel;
> + struct phy_provider *provider;
> + struct resource *res;
> +
> + if (!dev->of_node) {
> + dev_err(dev, "This driver needs device tree\n");
> + return -EINVAL;
> + }
> +
> + channel = devm_kzalloc(dev, sizeof(*channel), GFP_KERNEL);
> + if (!channel)
> + return -ENOMEM;
> +
> + res = platform_get_resource_byname(pdev, IORESOURCE_MEM, "usb2_host");
> + 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) {
> + channel->hsusb.base = devm_ioremap_resource(dev, res);
> + if (IS_ERR(channel->hsusb.base))
> + channel->hsusb.base = NULL;
> + }
> +
> + /* devm_phy_create() will call pm_runtime_enable(dev); */
> + channel->phy = devm_phy_create(dev, NULL, &rcar_gen3_phy_usb2_ops);
> + if (IS_ERR(channel->phy)) {
> + dev_err(dev, "Failed to create USB2 PHY\n");
> + return PTR_ERR(channel->phy);
> + }
> +
> + phy_set_drvdata(channel->phy, channel);
> +
> + provider = devm_of_phy_provider_register(dev, of_phy_simple_xlate);
> + if (IS_ERR(provider))
> + dev_err(dev, "Failed to register PHY provider\n");
> +
> + return PTR_ERR_OR_ZERO(provider);
> +}
> +
> +static struct platform_driver rcar_gen3_phy_usb2_driver = {
> + .driver = {
> + .name = "phy_rcar_gen3_usb2",
> + .of_match_table = rcar_gen3_phy_usb2_match_table,
> + },
> + .probe = rcar_gen3_phy_usb2_probe,
> +};
> +module_platform_driver(rcar_gen3_phy_usb2_driver);
> +
> +MODULE_LICENSE("GPL v2");
> +MODULE_DESCRIPTION("Renesas R-Car Gen3 USB 2.0 PHY");
> +MODULE_AUTHOR("Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>");
> --
> 1.9.1
>
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| From | Rob Herring <robh@kernel.org> |
|---|---|
| Date | 2015-11-30 18:20 +0100 |
| Subject | Re: [PATCH v6 3/4] phy: rcar-gen3-usb2: add runtime ID/VBUS pin detection |
| Message-ID | <qAAhj-6vu-1@gated-at.bofh.it> |
| In reply to | #1279491 |
On Mon, Nov 30, 2015 at 10:44:32AM +0900, Yoshihiro Shimoda wrote:
> This patch adds support for runtime ID/VBUS pin detection if
> the channel 0 of R-Car gen3 is used. So, we are able to use
> the channel as both host and peripheral.
>
> Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
> ---
> .../devicetree/bindings/phy/rcar-gen3-phy-usb2.txt | 2 +
This could just be combined with the previous binding doc (and bindings
are preferred to be separate patches).
Acked-by: Rob Herring <robh@kernel.org>
For the driver, there really should be a standard interface for ID/Vbus
pins.
Rob
> drivers/phy/phy-rcar-gen3-usb2.c | 43 +++++++++++++++++++++-
> 2 files changed, 44 insertions(+), 1 deletion(-)
>
> diff --git a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
> index affa0f7..2390e4e 100644
> --- a/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
> +++ b/Documentation/devicetree/bindings/phy/rcar-gen3-phy-usb2.txt
> @@ -18,6 +18,7 @@ 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".
> +- interrupts: interrupt specifier for the PHY.
>
> Example (R-Car H3):
>
> @@ -25,6 +26,7 @@ Example (R-Car H3):
> compatible = "renesas,usb2-phy-r8a7795";
> reg = <0 0xee080200 0 0x700>, <0 0xe6590100 0 0x100>;
> reg-names = "usb2_host", "hsusb";
> + interrupts = <GIC_SPI 108 IRQ_TYPE_LEVEL_HIGH>;
> clocks = <&mstp7_clks R8A7795_CLK_EHCI0>,
> <&mstp7_clks R8A7795_CLK_HSUSB>;
> };
> diff --git a/drivers/phy/phy-rcar-gen3-usb2.c b/drivers/phy/phy-rcar-gen3-usb2.c
> index 2b5d890..ef332ef 100644
> --- a/drivers/phy/phy-rcar-gen3-usb2.c
> +++ b/drivers/phy/phy-rcar-gen3-usb2.c
> @@ -12,6 +12,7 @@
> * published by the Free Software Foundation.
> */
>
> +#include <linux/interrupt.h>
> #include <linux/io.h>
> #include <linux/module.h>
> #include <linux/of.h>
> @@ -25,14 +26,18 @@
> #define USB2_SPD_RSM_TIMSET 0x10c
> #define USB2_OC_TIMSET 0x110
> #define USB2_COMMCTRL 0x600
> +#define USB2_OBINTSTA 0x604
> +#define USB2_OBINTEN 0x608
> #define USB2_VBCTRL 0x60c
> #define USB2_LINECTRL1 0x610
> #define USB2_ADPCTRL 0x630
>
> /* INT_ENABLE */
> +#define USB2_INT_ENABLE_UCOM_INTEN BIT(3)
> #define USB2_INT_ENABLE_USBH_INTB_EN BIT(2)
> #define USB2_INT_ENABLE_USBH_INTA_EN BIT(1)
> -#define USB2_INT_ENABLE_INIT (USB2_INT_ENABLE_USBH_INTB_EN | \
> +#define USB2_INT_ENABLE_INIT (USB2_INT_ENABLE_UCOM_INTEN | \
> + USB2_INT_ENABLE_USBH_INTB_EN | \
> USB2_INT_ENABLE_USBH_INTA_EN)
>
> /* USBCTR */
> @@ -48,6 +53,12 @@
> /* COMMCTRL */
> #define USB2_COMMCTRL_OTG_PERI BIT(31) /* 1 = Peripheral mode */
>
> +/* OBINTSTA and OBINTEN */
> +#define USB2_OBINT_SESSVLDCHG BIT(12)
> +#define USB2_OBINT_IDDIGCHG BIT(11)
> +#define USB2_OBINT_BITS (USB2_OBINT_SESSVLDCHG | \
> + USB2_OBINT_IDDIGCHG)
> +
> /* VBCTRL */
> #define USB2_VBCTRL_DRVVBUSSEL BIT(8)
>
> @@ -174,6 +185,9 @@ static void rcar_gen3_init_otg(struct rcar_gen3_chan *ch)
>
> val = readl(usb2_base + USB2_VBCTRL);
> writel(val | USB2_VBCTRL_DRVVBUSSEL, usb2_base + USB2_VBCTRL);
> + writel(USB2_OBINT_BITS, usb2_base + USB2_OBINTSTA);
> + val = readl(usb2_base + USB2_OBINTEN);
> + writel(val | USB2_OBINT_BITS, usb2_base + USB2_OBINTEN);
> val = readl(usb2_base + USB2_ADPCTRL);
> writel(val | USB2_ADPCTRL_IDPULLUP, usb2_base + USB2_ADPCTRL);
> val = readl(usb2_base + USB2_LINECTRL1);
> @@ -270,6 +284,23 @@ static struct phy_ops rcar_gen3_phy_usb2_ops = {
> .owner = THIS_MODULE,
> };
>
> +static irqreturn_t rcar_gen3_phy_usb2_irq(int irq, void *_ch)
> +{
> + struct rcar_gen3_chan *ch = _ch;
> + void __iomem *usb2_base = ch->usb2.base;
> + u32 status = readl(usb2_base + USB2_OBINTSTA);
> + irqreturn_t ret = IRQ_NONE;
> +
> + if (status & USB2_OBINT_BITS) {
> + dev_vdbg(&ch->phy->dev, "%s: %08x\n", __func__, status);
> + writel(USB2_OBINT_BITS, usb2_base + USB2_OBINTSTA);
> + rcar_gen3_device_recognition(ch);
> + ret = IRQ_HANDLED;
> + }
> +
> + return ret;
> +}
> +
> static const struct of_device_id rcar_gen3_phy_usb2_match_table[] = {
> { .compatible = "renesas,usb2-phy-r8a7795" },
> { }
> @@ -302,9 +333,19 @@ static int rcar_gen3_phy_usb2_probe(struct platform_device *pdev)
>
> /* 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);
> + if (irq < 0)
> + dev_err(dev, "No irq handler (%d)\n", irq);
> }
>
> /* devm_phy_create() will call pm_runtime_enable(dev); */
> --
> 1.9.1
>
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