diff options
Diffstat (limited to 'meta/recipes-kernel/linux/linux-omap-2.6.29/musb/0024-USB-otg-adding-nop-usb-transceiver.patch')
-rw-r--r-- | meta/recipes-kernel/linux/linux-omap-2.6.29/musb/0024-USB-otg-adding-nop-usb-transceiver.patch | 259 |
1 files changed, 0 insertions, 259 deletions
diff --git a/meta/recipes-kernel/linux/linux-omap-2.6.29/musb/0024-USB-otg-adding-nop-usb-transceiver.patch b/meta/recipes-kernel/linux/linux-omap-2.6.29/musb/0024-USB-otg-adding-nop-usb-transceiver.patch deleted file mode 100644 index 67004d7ec..000000000 --- a/meta/recipes-kernel/linux/linux-omap-2.6.29/musb/0024-USB-otg-adding-nop-usb-transceiver.patch +++ /dev/null @@ -1,259 +0,0 @@ -From de835357b3597af5304742cbd89771d70533292a Mon Sep 17 00:00:00 2001 -From: Ajay Kumar Gupta <ajay.gupta@ti.com> -Date: Fri, 6 Feb 2009 17:32:35 +0530 -Subject: [PATCH] USB: otg: adding nop usb transceiver - -NOP transceiver is used by all the usb transceiver which are mostly -autonomous and doesn't require any programming or which are built -into the usb ip itself.NOP transceiver only allocates the memory -for struct xceiv and calls otg_set_transceiver() so function call -to otg_get_transceiver() will return a valid transceiver. - -NOP transceiver device should be registered by calling -usb_nop_xceiv_register() from platform files. - -Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com> -Cc: Felipe Balbi <felipe.balbi@nokia.com> -Cc: David Brownell <dbrownell@users.sourceforge.net> -Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de> ---- - drivers/usb/otg/Kconfig | 8 ++ - drivers/usb/otg/Makefile | 1 + - drivers/usb/otg/nop-usb-xceiv.c | 180 +++++++++++++++++++++++++++++++++++++++ - include/linux/usb/otg.h | 4 + - 4 files changed, 193 insertions(+), 0 deletions(-) - create mode 100644 drivers/usb/otg/nop-usb-xceiv.c - -diff --git a/drivers/usb/otg/Kconfig b/drivers/usb/otg/Kconfig -index 5790a5b..aa884d0 100644 ---- a/drivers/usb/otg/Kconfig -+++ b/drivers/usb/otg/Kconfig -@@ -51,4 +51,12 @@ config TWL4030_USB - This transceiver supports high and full speed devices plus, - in host mode, low speed. - -+config NOP_USB_XCEIV -+ tristate "NOP USB Transceiver Driver" -+ select USB_OTG_UTILS -+ help -+ this driver is to be used by all the usb transceiver which are either -+ built-in with usb ip or which are autonomous and doesn't require any -+ phy programming such as ISP1x04 etc. -+ - endif # USB || OTG -diff --git a/drivers/usb/otg/Makefile b/drivers/usb/otg/Makefile -index d73c7cf..2081678 100644 ---- a/drivers/usb/otg/Makefile -+++ b/drivers/usb/otg/Makefile -@@ -9,6 +9,7 @@ obj-$(CONFIG_USB_OTG_UTILS) += otg.o - obj-$(CONFIG_USB_GPIO_VBUS) += gpio_vbus.o - obj-$(CONFIG_ISP1301_OMAP) += isp1301_omap.o - obj-$(CONFIG_TWL4030_USB) += twl4030-usb.o -+obj-$(CONFIG_NOP_USB_XCEIV) += nop-usb-xceiv.o - - ccflags-$(CONFIG_USB_DEBUG) += -DDEBUG - ccflags-$(CONFIG_USB_GADGET_DEBUG) += -DDEBUG -diff --git a/drivers/usb/otg/nop-usb-xceiv.c b/drivers/usb/otg/nop-usb-xceiv.c -new file mode 100644 -index 0000000..4b933f6 ---- /dev/null -+++ b/drivers/usb/otg/nop-usb-xceiv.c -@@ -0,0 +1,180 @@ -+/* -+ * drivers/usb/otg/nop-usb-xceiv.c -+ * -+ * NOP USB transceiver for all USB transceiver which are either built-in -+ * into USB IP or which are mostly autonomous. -+ * -+ * Copyright (C) 2009 Texas Instruments Inc -+ * Author: Ajay Kumar Gupta <ajay.gupta@ti.com> -+ * -+ * This program is free software; you can redistribute it and/or modify -+ * it under the terms of the GNU General Public License as published by -+ * the Free Software Foundation; either version 2 of the License, or -+ * (at your option) any later version. -+ * -+ * This program is distributed in the hope that it will be useful, -+ * but WITHOUT ANY WARRANTY; without even the implied warranty of -+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -+ * GNU General Public License for more details. -+ * -+ * You should have received a copy of the GNU General Public License -+ * along with this program; if not, write to the Free Software -+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -+ * -+ * Current status: -+ * this is to add "nop" transceiver for all those phy which is -+ * autonomous such as isp1504 etc. -+ */ -+ -+#include <linux/module.h> -+#include <linux/platform_device.h> -+#include <linux/dma-mapping.h> -+#include <linux/usb/otg.h> -+ -+struct nop_usb_xceiv { -+ struct otg_transceiver otg; -+ struct device *dev; -+}; -+ -+static u64 nop_xceiv_dmamask = DMA_32BIT_MASK; -+ -+static struct platform_device nop_xceiv_device = { -+ .name = "nop_usb_xceiv", -+ .id = -1, -+ .dev = { -+ .dma_mask = &nop_xceiv_dmamask, -+ .coherent_dma_mask = DMA_32BIT_MASK, -+ .platform_data = NULL, -+ }, -+}; -+ -+void usb_nop_xceiv_register(void) -+{ -+ if (platform_device_register(&nop_xceiv_device) < 0) { -+ printk(KERN_ERR "Unable to register usb nop transceiver\n"); -+ return; -+ } -+} -+ -+void usb_nop_xceiv_unregister(void) -+{ -+ platform_device_unregister(&nop_xceiv_device); -+} -+ -+static inline struct nop_usb_xceiv *xceiv_to_nop(struct otg_transceiver *x) -+{ -+ return container_of(x, struct nop_usb_xceiv, otg); -+} -+ -+static int nop_set_suspend(struct otg_transceiver *x, int suspend) -+{ -+ return 0; -+} -+ -+static int nop_set_peripheral(struct otg_transceiver *x, -+ struct usb_gadget *gadget) -+{ -+ struct nop_usb_xceiv *nop; -+ -+ if (!x) -+ return -ENODEV; -+ -+ nop = xceiv_to_nop(x); -+ -+ if (!gadget) { -+ nop->otg.gadget = NULL; -+ return -ENODEV; -+ } -+ -+ nop->otg.gadget = gadget; -+ nop->otg.state = OTG_STATE_B_IDLE; -+ return 0; -+} -+ -+static int nop_set_host(struct otg_transceiver *x, struct usb_bus *host) -+{ -+ struct nop_usb_xceiv *nop; -+ -+ if (!x) -+ return -ENODEV; -+ -+ nop = xceiv_to_nop(x); -+ -+ if (!host) { -+ nop->otg.host = NULL; -+ return -ENODEV; -+ } -+ -+ nop->otg.host = host; -+ return 0; -+} -+ -+static int __devinit nop_usb_xceiv_probe(struct platform_device *pdev) -+{ -+ struct nop_usb_xceiv *nop; -+ int err; -+ -+ nop = kzalloc(sizeof *nop, GFP_KERNEL); -+ if (!nop) -+ return -ENOMEM; -+ -+ nop->dev = &pdev->dev; -+ nop->otg.dev = nop->dev; -+ nop->otg.label = "nop-xceiv"; -+ nop->otg.state = OTG_STATE_UNDEFINED; -+ nop->otg.set_host = nop_set_host; -+ nop->otg.set_peripheral = nop_set_peripheral; -+ nop->otg.set_suspend = nop_set_suspend; -+ -+ err = otg_set_transceiver(&nop->otg); -+ if (err) { -+ dev_err(&pdev->dev, "can't register transceiver, err: %d\n", -+ err); -+ goto exit; -+ } -+ -+ platform_set_drvdata(pdev, nop); -+ -+ return 0; -+exit: -+ kfree(nop); -+ return err; -+} -+ -+static int __devexit nop_usb_xceiv_remove(struct platform_device *pdev) -+{ -+ struct nop_usb_xceiv *nop = platform_get_drvdata(pdev); -+ -+ otg_set_transceiver(NULL); -+ -+ platform_set_drvdata(pdev, NULL); -+ kfree(nop); -+ -+ return 0; -+} -+ -+static struct platform_driver nop_usb_xceiv_driver = { -+ .probe = nop_usb_xceiv_probe, -+ .remove = __devexit_p(nop_usb_xceiv_remove), -+ .driver = { -+ .name = "nop_usb_xceiv", -+ .owner = THIS_MODULE, -+ }, -+}; -+ -+static int __init nop_usb_xceiv_init(void) -+{ -+ return platform_driver_register(&nop_usb_xceiv_driver); -+} -+subsys_initcall(nop_usb_xceiv_init); -+ -+static void __exit nop_usb_xceiv_exit(void) -+{ -+ platform_driver_unregister(&nop_usb_xceiv_driver); -+} -+module_exit(nop_usb_xceiv_exit); -+ -+MODULE_ALIAS("platform:nop_usb_xceiv"); -+MODULE_AUTHOR("Texas Instruments Inc"); -+MODULE_DESCRIPTION("NOP USB Transceiver driver"); -+MODULE_LICENSE("GPL"); -diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h -index 94df4fe..54f2424 100644 ---- a/include/linux/usb/otg.h -+++ b/include/linux/usb/otg.h -@@ -80,6 +80,10 @@ struct otg_transceiver { - - /* for board-specific init logic */ - extern int otg_set_transceiver(struct otg_transceiver *); -+#ifdef CONFIG_NOP_USB_XCEIV -+extern void usb_nop_xceiv_register(void); -+extern void usb_nop_xceiv_unregister(void); -+#endif - - - /* for usb host and peripheral controller drivers */ --- -1.6.0.4 - |