From mboxrd@z Thu Jan 1 00:00:00 1970 From: Yoshihiro Shimoda Subject: [PATCH 2/2] usb: renesas_usbhs: Add device tree support for R-Car H2 and M2 Date: Fri, 1 Aug 2014 20:49:24 +0900 Message-ID: <53DB7EC4.5010705@renesas.com> Mime-Version: 1.0 Content-Type: text/plain; charset="ISO-2022-JP" Content-Transfer-Encoding: 7bit Return-path: Sender: linux-sh-owner@vger.kernel.org To: SH-Linux , "linux-usb@vger.kernel.org" Cc: "devicetree@vger.kernel.org" , Grant Likely , Rob Herring List-Id: devicetree@vger.kernel.org This driver supports other SoCs, but they need boards/Soc depend code. So, this patch adds device tree support for R-Car H2 and M2 initially. Signed-off-by: Yoshihiro Shimoda --- drivers/usb/renesas_usbhs/common.c | 43 ++++++++++++++++++++++++++++++++++++ 1 file changed, 43 insertions(+) diff --git a/drivers/usb/renesas_usbhs/common.c b/drivers/usb/renesas_usbhs/common.c index 1b9bf8d..845a889 100644 --- a/drivers/usb/renesas_usbhs/common.c +++ b/drivers/usb/renesas_usbhs/common.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include #include @@ -438,6 +439,34 @@ static int usbhsc_drvcllbck_notify_hotplug(struct platform_device *pdev) /* * platform functions */ +static struct renesas_usbhs_platform_info *usbhs_parse_dt(struct device *dev) +{ + struct renesas_usbhs_platform_info *info; + struct renesas_usbhs_driver_param *dparam; + u32 tmp; + int gpio; + + info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL); + if (!info) + return NULL; + + dparam = &info->driver_param; + + if (of_device_is_compatible(dev->of_node, "renesas,usbhs-r8a7790")) + dparam->type = USBHS_TYPE_R8A7790; + + if (of_device_is_compatible(dev->of_node, "renesas,usbhs-r8a7791")) + dparam->type = USBHS_TYPE_R8A7791; + + if (!of_property_read_u32(dev->of_node, "buswait_bwait", &tmp)) + dparam->buswait_bwait = tmp; + gpio = of_get_named_gpio_flags(dev->of_node, "enable-gpio", 0, NULL); + if (gpio > 0) + dparam->enable_gpio = gpio; + + return info; +} + static int usbhs_probe(struct platform_device *pdev) { struct renesas_usbhs_platform_info *info = dev_get_platdata(&pdev->dev); @@ -446,6 +475,10 @@ static int usbhs_probe(struct platform_device *pdev) struct resource *res, *irq_res; int ret; + /* check device node */ + if (pdev->dev.of_node) + info = pdev->dev.platform_data = usbhs_parse_dt(&pdev->dev); + /* check platform information */ if (!info) { dev_err(&pdev->dev, "no platform information\n"); @@ -685,10 +718,20 @@ static const struct dev_pm_ops usbhsc_pm_ops = { .runtime_resume = usbhsc_runtime_nop, }; +#ifdef CONFIG_OF +static const struct of_device_id usbhs_of_match[] = { + { .compatible = "renesas,usbhs-r8a7790"}, + { .compatible = "renesas,usbhs-r8a7791"}, + { }, +}; +MODULE_DEVICE_TABLE(of, usbhs_of_match); +#endif + static struct platform_driver renesas_usbhs_driver = { .driver = { .name = "renesas_usbhs", .pm = &usbhsc_pm_ops, + .of_match_table = of_match_ptr(usbhs_of_match), }, .probe = usbhs_probe, .remove = usbhs_remove, -- 1.7.9.5