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Message-ID: <526523D8.2060807@ti.com>
Date: Mon, 21 Oct 2013 18:23:44 +0530
From: Kishon Vijay Abraham I <kishon@...com>
To: Roger Quadros <rogerq@...com>
CC: <balbi@...com>, <gregkh@...uxfoundation.org>,
<rob.herring@...xeda.com>, <pawel.moll@....com>,
<mark.rutland@....com>, <swarren@...dotorg.org>,
<ijc+devicetree@...lion.org.uk>, <rob@...dley.net>,
<bcousson@...libre.com>, <tony@...mide.com>,
<linux@....linux.org.uk>, <grant.likely@...aro.org>,
<s.nawrocki@...sung.com>, <galak@...eaurora.org>,
<devicetree@...r.kernel.org>, <linux-doc@...r.kernel.org>,
<linux-kernel@...r.kernel.org>, <linux-omap@...r.kernel.org>,
<linux-arm-kernel@...ts.infradead.org>, <linux-usb@...r.kernel.org>
Subject: Re: [PATCH v2 4/7] drivers: phy: usb3/pipe3: Adapt pipe3 driver to
Generic PHY Framework
Hi,
On Wednesday 16 October 2013 07:10 PM, Roger Quadros wrote:
> Hi,
>
> On 10/15/2013 10:54 PM, Kishon Vijay Abraham I wrote:
>> Adapted omap-usb3 PHY driver to Generic PHY Framework and moved phy-omap-usb3
>> driver in drivers/usb/phy to drivers/phy and also renamed the file to
>> phy-ti-pipe3 since this same driver will be used for SATA PHY and
>> PCIE PHY.
>>
>> Signed-off-by: Kishon Vijay Abraham I <kishon@...com>
>> ---
>> drivers/phy/Kconfig | 10 +
>> drivers/phy/Makefile | 1 +
>> .../phy/phy-omap-usb3.c => phy/phy-ti-pipe3.c} | 206 +++++++++++---------
>> drivers/usb/phy/Kconfig | 11 --
>> drivers/usb/phy/Makefile | 1 -
>> include/linux/phy/ti_pipe3.h | 52 +++++
>> 6 files changed, 174 insertions(+), 107 deletions(-)
>> rename drivers/{usb/phy/phy-omap-usb3.c => phy/phy-ti-pipe3.c} (57%)
>> create mode 100644 include/linux/phy/ti_pipe3.h
>>
>> diff --git a/drivers/phy/Kconfig b/drivers/phy/Kconfig
>> index ac239ac..1158943 100644
>> --- a/drivers/phy/Kconfig
>> +++ b/drivers/phy/Kconfig
>> @@ -27,6 +27,16 @@ config OMAP_USB2
>> The USB OTG controller communicates with the comparator using this
>> driver.
>>
>> +config TI_PIPE3
>> + tristate "TI PIPE3 PHY Driver"
>> + select GENERIC_PHY
>> + select OMAP_CONTROL_USB
>
> The original OMAP_USB3 config had this
> depends on ARCH_OMAP2PLUS || COMPILE_TEST
>
> You need the 'depends on ARCH_OMAP2PLUS' else you'll risk build failure on non OMAP
> platforms, because OMAP_CONTROL_USB depends on ARCH_OMAP2PLUS.
huh missed that. Thanks for spotting this.
>
>> + help
>> + Enable this to support the PIPE3 PHY that is part of TI SOCs. This
>> + driver takes care of all the PHY functionality apart from comparator.
>> + This driver interacts with the "OMAP Control PHY Driver" to power
>> + on/off the PHY.
>> +
>> config TWL4030_USB
>> tristate "TWL4030 USB Transceiver Driver"
>> depends on TWL4030_CORE && REGULATOR_TWL4030 && USB_MUSB_OMAP2PLUS
>> diff --git a/drivers/phy/Makefile b/drivers/phy/Makefile
>> index 0dd8a98..42ccab4 100644
>> --- a/drivers/phy/Makefile
>> +++ b/drivers/phy/Makefile
>> @@ -4,4 +4,5 @@
>>
>> obj-$(CONFIG_GENERIC_PHY) += phy-core.o
>> obj-$(CONFIG_OMAP_USB2) += phy-omap-usb2.o
>> +obj-$(CONFIG_TI_PIPE3) += phy-ti-pipe3.o
>> obj-$(CONFIG_TWL4030_USB) += phy-twl4030-usb.o
>> diff --git a/drivers/usb/phy/phy-omap-usb3.c b/drivers/phy/phy-ti-pipe3.c
>> similarity index 57%
>> rename from drivers/usb/phy/phy-omap-usb3.c
>> rename to drivers/phy/phy-ti-pipe3.c
>> index 0c6ba29..31e8397 100644
>> --- a/drivers/usb/phy/phy-omap-usb3.c
>> +++ b/drivers/phy/phy-ti-pipe3.c
>> @@ -1,5 +1,5 @@
>> /*
>> - * omap-usb3 - USB PHY, talking to dwc3 controller in OMAP.
>> + * phy-ti-pipe3 - PIPE3 PHY driver for SATA, USB and PCIE.
>
> SATA and PCIe is not yet supported so no need to mention about it now.
hmm Ok.
>
>> *
>> * Copyright (C) 2013 Texas Instruments Incorporated - http://www.ti.com
>> * This program is free software; you can redistribute it and/or modify
>> @@ -19,7 +19,8 @@
>> #include <linux/module.h>
>> #include <linux/platform_device.h>
>> #include <linux/slab.h>
>> -#include <linux/usb/omap_usb.h>
>> +#include <linux/phy/ti_pipe3.h>
>> +#include <linux/phy/phy.h>
>> #include <linux/of.h>
>> #include <linux/clk.h>
>> #include <linux/err.h>
>> @@ -52,17 +53,17 @@
>>
>> /*
>> * This is an Empirical value that works, need to confirm the actual
>> - * value required for the USB3PHY_PLL_CONFIGURATION2.PLL_IDLE status
>> - * to be correctly reflected in the USB3PHY_PLL_STATUS register.
>> + * value required for the PIPE3PHY_PLL_CONFIGURATION2.PLL_IDLE status
>> + * to be correctly reflected in the PIPE3PHY_PLL_STATUS register.
>> */
>> # define PLL_IDLE_TIME 100;
>>
>> -struct usb_dpll_map {
>> +struct pipe3_dpll_map {
>> unsigned long rate;
>> - struct usb_dpll_params params;
>> + struct pipe3_dpll_params params;
>> };
>>
>> -static struct usb_dpll_map dpll_map[] = {
>> +static struct pipe3_dpll_map dpll_map[] = {
>> {12000000, {1250, 5, 4, 20, 0} }, /* 12 MHz */
>> {16800000, {3125, 20, 4, 20, 0} }, /* 16.8 MHz */
>> {19200000, {1172, 8, 4, 20, 65537} }, /* 19.2 MHz */
>> @@ -71,7 +72,7 @@ static struct usb_dpll_map dpll_map[] = {
>> {38400000, {3125, 47, 4, 20, 92843} }, /* 38.4 MHz */
>> };
>>
>> -static struct usb_dpll_params *omap_usb3_get_dpll_params(unsigned long rate)
>> +static struct pipe3_dpll_params *ti_pipe3_get_dpll_params(unsigned long rate)
>> {
>> int i;
>>
>> @@ -83,110 +84,113 @@ static struct usb_dpll_params *omap_usb3_get_dpll_params(unsigned long rate)
>> return NULL;
>> }
>>
>> -static int omap_usb3_suspend(struct usb_phy *x, int suspend)
>> +static int ti_pipe3_power_off(struct phy *x)
>> {
>> - struct omap_usb *phy = phy_to_omapusb(x);
>> - int val;
>> + struct ti_pipe3 *phy = phy_get_drvdata(x);
>> + int val;
>> int timeout = PLL_IDLE_TIME;
>>
>> - if (suspend && !phy->is_suspended) {
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
>> - val |= PLL_IDLE;
>> - omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
>> -
>> - do {
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_STATUS);
>> - if (val & PLL_TICOPWDN)
>> - break;
>> - udelay(1);
>> - } while (--timeout);
>> -
>> - omap_control_usb_phy_power(phy->control_dev, 0);
>> -
>> - phy->is_suspended = 1;
>> - } else if (!suspend && phy->is_suspended) {
>> - phy->is_suspended = 0;
>> -
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
>> - val &= ~PLL_IDLE;
>> - omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
>> -
>> - do {
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_STATUS);
>> - if (!(val & PLL_TICOPWDN))
>> - break;
>> - udelay(1);
>> - } while (--timeout);
>> - }
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
>> + val |= PLL_IDLE;
>> + ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
>> +
>> + do {
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
>> + if (val & PLL_TICOPWDN)
>> + break;
>> + usleep_range(1, 5);
>> + } while (--timeout);
>> +
>> + omap_control_usb_phy_power(phy->control_dev, 0);
>> +
>> + return 0;
>> +}
>> +
>> +static int ti_pipe3_power_on(struct phy *x)
>> +{
>> + struct ti_pipe3 *phy = phy_get_drvdata(x);
>> + int val;
>> + int timeout = PLL_IDLE_TIME;
>> +
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
>> + val &= ~PLL_IDLE;
>> + ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
>> +
>> + do {
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
>> + if (!(val & PLL_TICOPWDN))
>> + break;
>> + usleep_range(1, 5);
>> + } while (--timeout);
>>
>> return 0;
>> }
>>
>> -static void omap_usb_dpll_relock(struct omap_usb *phy)
>> +static void ti_pipe3_dpll_relock(struct ti_pipe3 *phy)
>> {
>> u32 val;
>> unsigned long timeout;
>>
>> - omap_usb_writel(phy->pll_ctrl_base, PLL_GO, SET_PLL_GO);
>> + ti_pipe3_writel(phy->pll_ctrl_base, PLL_GO, SET_PLL_GO);
>>
>> timeout = jiffies + msecs_to_jiffies(20);
>> do {
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_STATUS);
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_STATUS);
>> if (val & PLL_LOCK)
>> break;
>> } while (!WARN_ON(time_after(jiffies, timeout)));
>> }
>>
>> -static int omap_usb_dpll_lock(struct omap_usb *phy)
>> +static int ti_pipe3_dpll_lock(struct ti_pipe3 *phy)
>> {
>> u32 val;
>> unsigned long rate;
>> - struct usb_dpll_params *dpll_params;
>> + struct pipe3_dpll_params *dpll_params;
>>
>> rate = clk_get_rate(phy->sys_clk);
>> - dpll_params = omap_usb3_get_dpll_params(rate);
>> + dpll_params = ti_pipe3_get_dpll_params(rate);
>> if (!dpll_params) {
>> dev_err(phy->dev,
>> "No DPLL configuration for %lu Hz SYS CLK\n", rate);
>> return -EINVAL;
>> }
>>
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
>> val &= ~PLL_REGN_MASK;
>> val |= dpll_params->n << PLL_REGN_SHIFT;
>> - omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
>> + ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
>>
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION2);
>> val &= ~PLL_SELFREQDCO_MASK;
>> val |= dpll_params->freq << PLL_SELFREQDCO_SHIFT;
>> - omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
>> + ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION2, val);
>>
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION1);
>> val &= ~PLL_REGM_MASK;
>> val |= dpll_params->m << PLL_REGM_SHIFT;
>> - omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
>> + ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION1, val);
>>
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION4);
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION4);
>> val &= ~PLL_REGM_F_MASK;
>> val |= dpll_params->mf << PLL_REGM_F_SHIFT;
>> - omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION4, val);
>> + ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION4, val);
>>
>> - val = omap_usb_readl(phy->pll_ctrl_base, PLL_CONFIGURATION3);
>> + val = ti_pipe3_readl(phy->pll_ctrl_base, PLL_CONFIGURATION3);
>> val &= ~PLL_SD_MASK;
>> val |= dpll_params->sd << PLL_SD_SHIFT;
>> - omap_usb_writel(phy->pll_ctrl_base, PLL_CONFIGURATION3, val);
>> + ti_pipe3_writel(phy->pll_ctrl_base, PLL_CONFIGURATION3, val);
>>
>> - omap_usb_dpll_relock(phy);
>> + ti_pipe3_dpll_relock(phy);
>>
>> return 0;
>> }
>>
>> -static int omap_usb3_init(struct usb_phy *x)
>> +static int ti_pipe3_init(struct phy *x)
>> {
>> - struct omap_usb *phy = phy_to_omapusb(x);
>> + struct ti_pipe3 *phy = phy_get_drvdata(x);
>> int ret;
>>
>> - ret = omap_usb_dpll_lock(phy);
>> + ret = ti_pipe3_dpll_lock(phy);
>> if (ret)
>> return ret;
>>
>> @@ -195,9 +199,18 @@ static int omap_usb3_init(struct usb_phy *x)
>> return 0;
>> }
>>
>> -static int omap_usb3_probe(struct platform_device *pdev)
>> +static struct phy_ops ops = {
>> + .init = ti_pipe3_init,
>> + .power_on = ti_pipe3_power_on,
>> + .power_off = ti_pipe3_power_off,
>> + .owner = THIS_MODULE,
>> +};
>> +
>> +static int ti_pipe3_probe(struct platform_device *pdev)
>> {
>> - struct omap_usb *phy;
>> + struct ti_pipe3 *phy;
>> + struct phy *generic_phy;
>> + struct phy_provider *phy_provider;
>> struct resource *res;
>> struct device_node *node = pdev->dev.of_node;
>> struct device_node *control_node;
>> @@ -208,7 +221,7 @@ static int omap_usb3_probe(struct platform_device *pdev)
>>
>> phy = devm_kzalloc(&pdev->dev, sizeof(*phy), GFP_KERNEL);
>> if (!phy) {
>> - dev_err(&pdev->dev, "unable to alloc mem for OMAP USB3 PHY\n");
>> + dev_err(&pdev->dev, "unable to alloc mem for TI PIPE3 PHY\n");
>> return -ENOMEM;
>> }
>>
>> @@ -219,13 +232,6 @@ static int omap_usb3_probe(struct platform_device *pdev)
>>
>> phy->dev = &pdev->dev;
>>
>> - phy->phy.dev = phy->dev;
>> - phy->phy.label = "omap-usb3";
>> - phy->phy.init = omap_usb3_init;
>> - phy->phy.set_suspend = omap_usb3_suspend;
>> - phy->phy.type = USB_PHY_TYPE_USB3;
>> -
>> - phy->is_suspended = 1;
>> phy->wkupclk = devm_clk_get(phy->dev, "usb_phy_cm_clk32k");
>> if (IS_ERR(phy->wkupclk)) {
>> dev_err(&pdev->dev, "unable to get usb_phy_cm_clk32k\n");
>> @@ -251,6 +257,11 @@ static int omap_usb3_probe(struct platform_device *pdev)
>> dev_err(&pdev->dev, "Failed to get control device phandle\n");
>> return -EINVAL;
>> }
>> + phy_provider = devm_of_phy_provider_register(phy->dev,
>> + of_phy_simple_xlate);
>> + if (IS_ERR(phy_provider))
>> + return PTR_ERR(phy_provider);
>> +
>> control_pdev = of_find_device_by_node(control_node);
>> if (!control_pdev) {
>> dev_err(&pdev->dev, "Failed to get control device\n");
>> @@ -260,23 +271,27 @@ static int omap_usb3_probe(struct platform_device *pdev)
>> phy->control_dev = &control_pdev->dev;
>>
>> omap_control_usb_phy_power(phy->control_dev, 0);
>> - usb_add_phy_dev(&phy->phy);
>>
>> platform_set_drvdata(pdev, phy);
>> -
>> pm_runtime_enable(phy->dev);
>> +
>> + generic_phy = devm_phy_create(phy->dev, &ops, NULL);
>> + if (IS_ERR(generic_phy))
>> + return PTR_ERR(generic_phy);
>> +
>> + phy_set_drvdata(generic_phy, phy);
>> +
>> pm_runtime_get(&pdev->dev);
>>
>> return 0;
>> }
>>
>> -static int omap_usb3_remove(struct platform_device *pdev)
>> +static int ti_pipe3_remove(struct platform_device *pdev)
>> {
>> - struct omap_usb *phy = platform_get_drvdata(pdev);
>> + struct ti_pipe3 *phy = platform_get_drvdata(pdev);
>>
>> clk_unprepare(phy->wkupclk);
>> clk_unprepare(phy->optclk);
>> - usb_remove_phy(&phy->phy);
>> if (!pm_runtime_suspended(&pdev->dev))
>> pm_runtime_put(&pdev->dev);
>> pm_runtime_disable(&pdev->dev);
>> @@ -286,10 +301,9 @@ static int omap_usb3_remove(struct platform_device *pdev)
>>
>> #ifdef CONFIG_PM_RUNTIME
>>
>> -static int omap_usb3_runtime_suspend(struct device *dev)
>> +static int ti_pipe3_runtime_suspend(struct device *dev)
>> {
>> - struct platform_device *pdev = to_platform_device(dev);
>> - struct omap_usb *phy = platform_get_drvdata(pdev);
>> + struct ti_pipe3 *phy = dev_get_drvdata(dev);
>>
>> clk_disable(phy->wkupclk);
>> clk_disable(phy->optclk);
>> @@ -297,11 +311,10 @@ static int omap_usb3_runtime_suspend(struct device *dev)
>> return 0;
>> }
>>
>> -static int omap_usb3_runtime_resume(struct device *dev)
>> +static int ti_pipe3_runtime_resume(struct device *dev)
>> {
>> u32 ret = 0;
>> - struct platform_device *pdev = to_platform_device(dev);
>> - struct omap_usb *phy = platform_get_drvdata(pdev);
>> + struct ti_pipe3 *phy = dev_get_drvdata(dev);
>>
>> ret = clk_enable(phy->optclk);
>> if (ret) {
>> @@ -324,38 +337,41 @@ err1:
>> return ret;
>> }
>>
>> -static const struct dev_pm_ops omap_usb3_pm_ops = {
>> - SET_RUNTIME_PM_OPS(omap_usb3_runtime_suspend, omap_usb3_runtime_resume,
>> - NULL)
>> +static const struct dev_pm_ops ti_pipe3_pm_ops = {
>> + SET_RUNTIME_PM_OPS(ti_pipe3_runtime_suspend,
>> + ti_pipe3_runtime_resume, NULL)
>> };
>>
>> -#define DEV_PM_OPS (&omap_usb3_pm_ops)
>> +#define DEV_PM_OPS (&ti_pipe3_pm_ops)
>> #else
>> #define DEV_PM_OPS NULL
>> #endif
>>
>> #ifdef CONFIG_OF
>> -static const struct of_device_id omap_usb3_id_table[] = {
>> +static const struct of_device_id ti_pipe3_id_table[] = {
>> + { .compatible = "ti,phy-sata" },
>> + { .compatible = "ti,phy-pcie" },
>
> sata and pcie are not yet supported by this driver so better avoid adding
> the compatible strings now.
Ok.
>
>> + { .compatible = "ti,phy-usb3" },
>> { .compatible = "ti,omap-usb3" },
>> {}
>> };
>> -MODULE_DEVICE_TABLE(of, omap_usb3_id_table);
>> +MODULE_DEVICE_TABLE(of, ti_pipe3_id_table);
>> #endif
>>
>> -static struct platform_driver omap_usb3_driver = {
>> - .probe = omap_usb3_probe,
>> - .remove = omap_usb3_remove,
>> +static struct platform_driver ti_pipe3_driver = {
>> + .probe = ti_pipe3_probe,
>> + .remove = ti_pipe3_remove,
>> .driver = {
>> - .name = "omap-usb3",
>> + .name = "ti-pipe3",
>> .owner = THIS_MODULE,
>> .pm = DEV_PM_OPS,
>> - .of_match_table = of_match_ptr(omap_usb3_id_table),
>> + .of_match_table = of_match_ptr(ti_pipe3_id_table),
>> },
>> };
>>
>> -module_platform_driver(omap_usb3_driver);
>> +module_platform_driver(ti_pipe3_driver);
>>
>> -MODULE_ALIAS("platform: omap_usb3");
>> +MODULE_ALIAS("platform: ti_pipe3");
>> MODULE_AUTHOR("Texas Instruments Inc.");
>> -MODULE_DESCRIPTION("OMAP USB3 phy driver");
>> +MODULE_DESCRIPTION("TI PIPE3 phy driver");
>> MODULE_LICENSE("GPL v2");
>> diff --git a/drivers/usb/phy/Kconfig b/drivers/usb/phy/Kconfig
>> index 64b8bef..1d4916a 100644
>> --- a/drivers/usb/phy/Kconfig
>> +++ b/drivers/usb/phy/Kconfig
>> @@ -66,17 +66,6 @@ config OMAP_CONTROL_USB
>> power on the USB2 PHY is present in OMAP4 and OMAP5. OMAP5 has an
>> additional register to power on USB3 PHY.
>>
>> -config OMAP_USB3
>> - tristate "OMAP USB3 PHY Driver"
>> - depends on ARCH_OMAP2PLUS || COMPILE_TEST
>> - select OMAP_CONTROL_USB
>> - select USB_PHY
>> - help
>> - Enable this to support the USB3 PHY that is part of SOC. This
>> - driver takes care of all the PHY functionality apart from comparator.
>> - This driver interacts with the "OMAP Control USB Driver" to power
>> - on/off the PHY.
>> -
>> config AM335X_CONTROL_USB
>> tristate
>>
>> diff --git a/drivers/usb/phy/Makefile b/drivers/usb/phy/Makefile
>> index 9c37361..fa80661 100644
>> --- a/drivers/usb/phy/Makefile
>> +++ b/drivers/usb/phy/Makefile
>> @@ -15,7 +15,6 @@ obj-$(CONFIG_NOP_USB_XCEIV) += phy-generic.o
>> obj-$(CONFIG_OMAP_CONTROL_USB) += phy-omap-control.o
>> obj-$(CONFIG_AM335X_CONTROL_USB) += phy-am335x-control.o
>> obj-$(CONFIG_AM335X_PHY_USB) += phy-am335x.o
>> -obj-$(CONFIG_OMAP_USB3) += phy-omap-usb3.o
>> obj-$(CONFIG_SAMSUNG_USBPHY) += phy-samsung-usb.o
>> obj-$(CONFIG_SAMSUNG_USB2PHY) += phy-samsung-usb2.o
>> obj-$(CONFIG_SAMSUNG_USB3PHY) += phy-samsung-usb3.o
>> diff --git a/include/linux/phy/ti_pipe3.h b/include/linux/phy/ti_pipe3.h
>> new file mode 100644
>> index 0000000..4d42b04
>> --- /dev/null
>> +++ b/include/linux/phy/ti_pipe3.h
>> @@ -0,0 +1,52 @@
>> +/*
>> + * ti_pipe3.h -- ti pipe3 phy header file
>
> why do you need this file to sit in include/linux/phy/ ?
>
> I don't think there are any external users so better to just merge
> it with drivers/phy/phy-ti-pipe3.c
yeah. Makes sense.
Thanks
Kishon
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