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https://github.com/brain-hackers/u-boot-brain
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usb: dwc3: dwc3-omap: make dwc3-omap build in uboot
*) Changed the included header files to that used in u-boot. *) Removed extcon_* APIs *) Removed regulator_* APIs *) Fixed other misc warnings *) Added dwc3-omap.h to include the definitions of UTMI modes. Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com> Reviewed-by: Lukasz Majewski <l.majewski@samsung.com>
This commit is contained in:
Kishon Vijay Abraham I
Marek Vasut
parent
27d3b89d33
commit
3f52e1b985
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@ -14,21 +14,16 @@
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* SPDX-License-Identifier: GPL-2.0
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*/
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/slab.h>
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/platform_data/dwc3-omap.h>
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#include <linux/dma-mapping.h>
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#include <common.h>
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#include <malloc.h>
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#include <asm/io.h>
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#include <linux/usb/dwc3-omap.h>
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#include <linux/ioport.h>
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#include <linux/io.h>
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#include <linux/of.h>
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#include <linux/of_platform.h>
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#include <linux/extcon.h>
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#include <linux/regulator/consumer.h>
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#include <linux/usb/otg.h>
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#include <linux/compat.h>
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#include "linux-compat.h"
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/*
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* All these registers belong to OMAP's Wrapper around the
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@ -113,7 +108,6 @@
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struct dwc3_omap {
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struct device *dev;
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int irq;
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void __iomem *base;
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u32 utmi_otg_status;
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@ -124,13 +118,6 @@ struct dwc3_omap {
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u32 irq0_offset;
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u32 dma_status:1;
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struct extcon_specific_cable_nb extcon_vbus_dev;
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struct extcon_specific_cable_nb extcon_id_dev;
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struct notifier_block vbus_nb;
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struct notifier_block id_nb;
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struct regulator *vbus_reg;
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};
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enum omap_dwc3_vbus_id_status {
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@ -205,21 +192,12 @@ static void dwc3_omap_write_irq0_set(struct dwc3_omap *omap, u32 value)
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static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
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enum omap_dwc3_vbus_id_status status)
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{
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int ret;
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u32 val;
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switch (status) {
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case OMAP_DWC3_ID_GROUND:
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dev_dbg(omap->dev, "ID GND\n");
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if (omap->vbus_reg) {
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ret = regulator_enable(omap->vbus_reg);
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if (ret) {
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dev_dbg(omap->dev, "regulator enable failed\n");
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return;
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}
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}
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val = dwc3_omap_read_utmi_status(omap);
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val &= ~(USBOTGSS_UTMI_OTG_STATUS_IDDIG
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| USBOTGSS_UTMI_OTG_STATUS_VBUSVALID
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@ -242,9 +220,6 @@ static void dwc3_omap_set_mailbox(struct dwc3_omap *omap,
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break;
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case OMAP_DWC3_ID_FLOAT:
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if (omap->vbus_reg)
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regulator_disable(omap->vbus_reg);
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case OMAP_DWC3_VBUS_OFF:
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dev_dbg(omap->dev, "VBUS Disconnect\n");
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@ -349,32 +324,6 @@ static void dwc3_omap_disable_irqs(struct dwc3_omap *omap)
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static u64 dwc3_omap_dma_mask = DMA_BIT_MASK(32);
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static int dwc3_omap_id_notifier(struct notifier_block *nb,
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unsigned long event, void *ptr)
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{
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struct dwc3_omap *omap = container_of(nb, struct dwc3_omap, id_nb);
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if (event)
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dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
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else
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dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_FLOAT);
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return NOTIFY_DONE;
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}
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static int dwc3_omap_vbus_notifier(struct notifier_block *nb,
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unsigned long event, void *ptr)
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{
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struct dwc3_omap *omap = container_of(nb, struct dwc3_omap, vbus_nb);
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if (event)
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dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
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else
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dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_OFF);
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return NOTIFY_DONE;
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}
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static void dwc3_omap_map_offset(struct dwc3_omap *omap)
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{
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struct device_node *node = omap->dev->of_node;
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@ -420,42 +369,6 @@ static void dwc3_omap_set_utmi_mode(struct dwc3_omap *omap)
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dwc3_omap_write_utmi_status(omap, reg);
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}
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static int dwc3_omap_extcon_register(struct dwc3_omap *omap)
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{
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int ret;
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struct device_node *node = omap->dev->of_node;
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struct extcon_dev *edev;
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if (of_property_read_bool(node, "extcon")) {
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edev = extcon_get_edev_by_phandle(omap->dev, 0);
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if (IS_ERR(edev)) {
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dev_vdbg(omap->dev, "couldn't get extcon device\n");
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return -EPROBE_DEFER;
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}
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omap->vbus_nb.notifier_call = dwc3_omap_vbus_notifier;
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ret = extcon_register_interest(&omap->extcon_vbus_dev,
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edev->name, "USB",
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&omap->vbus_nb);
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if (ret < 0)
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dev_vdbg(omap->dev, "failed to register notifier for USB\n");
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omap->id_nb.notifier_call = dwc3_omap_id_notifier;
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ret = extcon_register_interest(&omap->extcon_id_dev,
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edev->name, "USB-HOST",
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&omap->id_nb);
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if (ret < 0)
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dev_vdbg(omap->dev, "failed to register notifier for USB-HOST\n");
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if (extcon_get_cable_state(edev, "USB") == true)
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dwc3_omap_set_mailbox(omap, OMAP_DWC3_VBUS_VALID);
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if (extcon_get_cable_state(edev, "USB-HOST") == true)
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dwc3_omap_set_mailbox(omap, OMAP_DWC3_ID_GROUND);
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}
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return 0;
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}
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static int dwc3_omap_probe(struct platform_device *pdev)
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{
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struct device_node *node = pdev->dev.of_node;
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@ -463,11 +376,8 @@ static int dwc3_omap_probe(struct platform_device *pdev)
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struct dwc3_omap *omap;
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struct resource *res;
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struct device *dev = &pdev->dev;
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struct regulator *vbus_reg = NULL;
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int ret;
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int irq;
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u32 reg;
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void __iomem *base;
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@ -483,29 +393,13 @@ static int dwc3_omap_probe(struct platform_device *pdev)
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platform_set_drvdata(pdev, omap);
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irq = platform_get_irq(pdev, 0);
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if (irq < 0) {
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dev_err(dev, "missing IRQ resource\n");
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return -EINVAL;
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}
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res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
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base = devm_ioremap_resource(dev, res);
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if (IS_ERR(base))
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return PTR_ERR(base);
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if (of_property_read_bool(node, "vbus-supply")) {
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vbus_reg = devm_regulator_get(dev, "vbus");
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if (IS_ERR(vbus_reg)) {
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dev_err(dev, "vbus init failed\n");
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return PTR_ERR(vbus_reg);
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}
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}
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omap->dev = dev;
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omap->irq = irq;
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omap->base = base;
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omap->vbus_reg = vbus_reg;
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dev->dma_mask = &dwc3_omap_dma_mask;
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dwc3_omap_map_offset(omap);
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@ -515,34 +409,16 @@ static int dwc3_omap_probe(struct platform_device *pdev)
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reg = dwc3_omap_readl(omap->base, USBOTGSS_SYSCONFIG);
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omap->dma_status = !!(reg & USBOTGSS_SYSCONFIG_DMADISABLE);
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ret = devm_request_irq(dev, omap->irq, dwc3_omap_interrupt, 0,
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"dwc3-omap", omap);
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if (ret) {
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dev_err(dev, "failed to request IRQ #%d --> %d\n",
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omap->irq, ret);
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goto err0;
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}
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dwc3_omap_enable_irqs(omap);
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ret = dwc3_omap_extcon_register(omap);
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if (ret < 0)
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goto err1;
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ret = of_platform_populate(node, NULL, NULL, dev);
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if (ret) {
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dev_err(&pdev->dev, "failed to create dwc3 core\n");
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goto err2;
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goto err1;
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}
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return 0;
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err2:
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if (omap->extcon_vbus_dev.edev)
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extcon_unregister_interest(&omap->extcon_vbus_dev);
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if (omap->extcon_id_dev.edev)
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extcon_unregister_interest(&omap->extcon_id_dev);
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err1:
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dwc3_omap_disable_irqs(omap);
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@ -554,10 +430,6 @@ static int dwc3_omap_remove(struct platform_device *pdev)
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{
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struct dwc3_omap *omap = platform_get_drvdata(pdev);
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if (omap->extcon_vbus_dev.edev)
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extcon_unregister_interest(&omap->extcon_vbus_dev);
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if (omap->extcon_id_dev.edev)
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extcon_unregister_interest(&omap->extcon_id_dev);
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dwc3_omap_disable_irqs(omap);
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device_for_each_child(&pdev->dev, NULL, dwc3_omap_remove_core);
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19
include/linux/usb/dwc3-omap.h
Normal file
19
include/linux/usb/dwc3-omap.h
Normal file
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@ -0,0 +1,19 @@
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/* include/linux/usb/dwc3-omap.h
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*
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* Copyright (c) 2014 Texas Instruments Incorporated - http://www.ti.com
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*
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* Designware SuperSpeed Glue
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*
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* SPDX-License-Identifier: GPL-2.0+
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*/
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#ifndef __DWC3_OMAP_H_
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#define __DWC3_OMAP_H_
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enum dwc3_omap_utmi_mode {
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DWC3_OMAP_UTMI_MODE_UNKNOWN = 0,
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DWC3_OMAP_UTMI_MODE_HW,
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DWC3_OMAP_UTMI_MODE_SW,
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};
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#endif /* __DWC3_OMAP_H_ */
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