diff options
| author | Tony Lindgren <tony@atomide.com> | 2010-04-24 02:41:15 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-04-30 18:25:09 +0200 |
| commit | 1d0f11b39728099100a768cab2d7a90389017e75 (patch) | |
| tree | be80fb2cb4cc2c236f37ca210f524ea54dec8d96 /drivers/usb/musb/tusb6010.c | |
| parent | musb_core: fix musb_init_controller() error cleanup path (diff) | |
| download | linux-1d0f11b39728099100a768cab2d7a90389017e75.tar.xz linux-1d0f11b39728099100a768cab2d7a90389017e75.zip | |
usb: Fix tusb6010 for DMA API
Commit 18eabe2347ae7a11b3db768695913724166dfb0e introduced
DMA buffer ownership. Fix tusb6010 accordingly. To compile,
also dummy musb_platform_save and restore functions need to
be added.
Also change the order of musb_read_fifo() to happen after
dma_cache_maint to have the DMA operations completed before
moving the remaining unaligned bytes with PIO. The DMA
access and PIO touch different areas of the FIFO, so this
change only makes the code a bit easier to follow.
Tested on n810 and g_ether with variable size ping test.
The test seems to fail for some ping sizes, but that seems to
be a different problem.
Signed-off-by: Tony Lindgren <tony@atomide.com>
Acked-by: Felipe Balbi <felipe.balbi@nokia.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
Diffstat (limited to 'drivers/usb/musb/tusb6010.c')
| -rw-r--r-- | drivers/usb/musb/tusb6010.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/usb/musb/tusb6010.c b/drivers/usb/musb/tusb6010.c index ab776a8d98ca..60d3938cafcf 100644 --- a/drivers/usb/musb/tusb6010.c +++ b/drivers/usb/musb/tusb6010.c @@ -29,6 +29,19 @@ static void tusb_source_power(struct musb *musb, int is_on); #define TUSB_REV_MAJOR(reg_val) ((reg_val >> 4) & 0xf) #define TUSB_REV_MINOR(reg_val) (reg_val & 0xf) +#ifdef CONFIG_PM +/* REVISIT: These should be only needed if somebody implements off idle */ +void musb_platform_save_context(struct musb *musb, + struct musb_context_registers *musb_context) +{ +} + +void musb_platform_restore_context(struct musb *musb, + struct musb_context_registers *musb_context) +{ +} +#endif + /* * Checks the revision. We need to use the DMA register as 3.0 does not * have correct versions for TUSB_PRCM_REV or TUSB_INT_CTRL_REV. |