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path: root/drivers/usb/renesas_usbhs
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* usb/renesas_usbhs: free uep on removalSebastian Andrzej Siewior2011-06-061-0/+1
| | | | | | | | Can't find evidence that this is actually done. Cc: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: fixup error processing on probe/removeKuninori Morimoto2011-05-111-6/+6
| | | | | | | | The error processing order was wrong. This patch modify it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: fixup fifo disableKuninori Morimoto2011-05-111-16/+13
| | | | | | | | It was necessary to check pipe condition after disable fifo. Current driver checked it in a wrong place. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: add autonomy modeKuninori Morimoto2011-04-294-7/+95
| | | | | | | | | | | | | | | Current renesas_usbhs was designed to save power when USB is not connected. And it assumed platform uses callback to notify connection/disconnection by external interrupt. But some SuperH / platform board doesn't have such feature. This patch adds autonomy mode which detect USB connection/disconnection by internal interrupt. But power will be always ON when autonomy mode is selected. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: use delayed_work instead of work_structKuninori Morimoto2011-04-292-5/+7
| | | | | | | | | | This delay is used to overjump debounce. And, this patch also move usbhsc_drvcllbck_notify_hotplug to global, because it will be called from other files. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: prevent NULL pointer crashKuninori Morimoto2011-04-291-15/+19
| | | | | | | | usbhs_status_get_each_irq/usbhs_irq_callback_update might be called with mod == NULL Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: add power control functionKuninori Morimoto2011-04-291-13/+29
| | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: move pdev_to_priv to globalKuninori Morimoto2011-04-292-7/+8
| | | | | | | usbhs_pdev_to_priv function will be used in other files. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: add error reason for usbhs_pipe_mallocKuninori Morimoto2011-04-291-1/+4
| | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: remove callback when module removed.Kuninori Morimoto2011-04-291-0/+4
| | | | | | | | The callback function which is called from platform must be removed if module removed. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: return error if wrong recip requestKuninori Morimoto2011-04-291-0/+4
| | | | | | | | | | There are some USB Host which doesn't notice disconnection at once. And it might try some request after reconnection with old settings. Current renesas_usbhs will crash in such case. This patch prevent this issue. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: modify spinlock methodKuninori Morimoto2011-04-291-36/+61
| | | | | | | | | | Current renesas_usbhs driver was using spin_trylock to avoid dead lock / nest lock. But acording to CONFIG_DEBUG_SPINLOCK, it is BUG under UP environment. This patch add usbhsg_trylock to avoid this issue. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: don't re-allocation pipe bufferKuninori Morimoto2011-04-291-3/+17
| | | | | | | | | | | | | | | | Because pipe buffer allocation is very picky and difficult, current renesas_usbhs driver is not caring pipe re-allocation. In this situation, driver will create new pipe without caring old pipe if "usbhsg_ep_enable" is called after "usbhsg_ep_disable" on current driver. This mean the limited pipe and buffer will be used as waste. But it is possible to re-use same buffer to same pipe. By this patch, driver will initialize pipe when it detected new connection or new gadget, and doesn't try re-allocation for same pipe in above case. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: modify fifo clear timingKuninori Morimoto2011-04-291-10/+4
| | | | | | | | | | Pipe buffer should be cleaned before using it, but should NOT be cleaned in pipe "prepare" function. Because the pipe might be working in such timing. This patch fixup this issue. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: Driver is depend on SuperHKuninori Morimoto2011-04-291-0/+1
| | | | | Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: fixup cast warningKuninori Morimoto2011-04-291-2/+1
| | | | | | | | This patch fixup cast warning on 64 bit compiler Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reported-by: Greg Kroah-Hartman <gregkh@suse.de> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: Add Renesas USBHS GadgetKuninori Morimoto2011-04-134-1/+1375
| | | | | | | This patch add usb gadget code to SuperH USBHS. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
* usb: renesas_usbhs: Add Renesas USBHS common codeKuninori Morimoto2011-04-138-0/+1993
Renesas SuperH has USBHS IP which can switch Host / Function. This driver is designed so that Host / Function may dynamically change. This patch add usb/renesas_usbhs and common code for SuperH USBHS. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
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