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| author | Ajay Kumar Gupta <ajay.gupta@ti.com> | 2010-01-21 15:33:52 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-03-02 14:54:38 -0800 |
| commit | 4f712e010b2da1cc01c178922f2eb5aaeae461b6 (patch) | |
| tree | 4341a8c4f1e8184b0a727a9746be74267d20f68f /drivers/usb/musb/musb_core.h | |
| parent | 8af6096caf8b3fb7ee33e636c44a29f373d27df5 (diff) | |
| download | linux-4f712e010b2da1cc01c178922f2eb5aaeae461b6.tar.bz2 | |
usb: musb: Add context save and restore support
Adding support for MUSB register save and restore during system
suspend and resume.
Changes:
- Added musb_save/restore_context() functions
- Added platform specific musb_platform_save/restore_context()
to handle platform specific jobs.
- Maintaining BlackFin compatibility by adding read/write
functions for registers which are not available in BlackFin
Tested system suspend and resume on OMAP3EVM board.
Signed-off-by: Anand Gadiyar <gadiyar@ti.com>
Signed-off-by: Ajay Kumar Gupta <ajay.gupta@ti.com>
Signed-off-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/musb/musb_core.h')
| -rw-r--r-- | drivers/usb/musb/musb_core.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/usb/musb/musb_core.h b/drivers/usb/musb/musb_core.h index eaa01140183e..3d66c3e01dbd 100644 --- a/drivers/usb/musb/musb_core.h +++ b/drivers/usb/musb/musb_core.h @@ -454,6 +454,45 @@ struct musb { #endif }; +#ifdef CONFIG_PM +struct musb_csr_regs { + /* FIFO registers */ + u16 txmaxp, txcsr, rxmaxp, rxcsr; + u16 rxfifoadd, txfifoadd; + u8 txtype, txinterval, rxtype, rxinterval; + u8 rxfifosz, txfifosz; + u8 txfunaddr, txhubaddr, txhubport; + u8 rxfunaddr, rxhubaddr, rxhubport; +}; + +struct musb_context_registers { + +#if defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP2430) + u32 otg_sysconfig, otg_forcestandby; +#endif + u8 power; + u16 intrtxe, intrrxe; + u8 intrusbe; + u16 frame; + u8 index, testmode; + + u8 devctl, misc; + + struct musb_csr_regs index_regs[MUSB_C_NUM_EPS]; +}; + +#if defined(CONFIG_ARCH_OMAP34XX) || defined(CONFIG_ARCH_OMAP2430) +extern void musb_platform_save_context(struct musb_context_registers + *musb_context); +extern void musb_platform_restore_context(struct musb_context_registers + *musb_context); +#else +#define musb_platform_save_context(x) do {} while (0) +#define musb_platform_restore_context(x) do {} while (0) +#endif + +#endif + static inline void musb_set_vbus(struct musb *musb, int is_on) { musb->board_set_vbus(musb, is_on); |