On Wed, Dec 14, 2016 at 08:23:45PM +0100, Pali Rohár wrote:
> Based on the musb ug, force_host bit is allowed to be set along with
> force_hs or force_fs bit.
>
> It could help to implement forced host mode via testmode on Nokia N900.
>
> Signed-off-by: Pali Rohár <pali.ro...@gmail.com>
> ---
> drivers/usb/musb/musb_debugfs.c | 44
> +++++++++++++++++++++++++--------------
> 1 file changed, 28 insertions(+), 16 deletions(-)
>
> diff --git a/drivers/usb/musb/musb_debugfs.c b/drivers/usb/musb/musb_debugfs.c
> index 9b22d94..62c13a2 100644
> --- a/drivers/usb/musb/musb_debugfs.c
> +++ b/drivers/usb/musb/musb_debugfs.c
> @@ -147,28 +147,34 @@ static int musb_test_mode_show(struct seq_file *s, void
> *unused)
>
> test = musb_readb(musb->mregs, MUSB_TESTMODE);
>
> - if (test & MUSB_TEST_FORCE_HOST)
> + if (test & (MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS))
if (test & (MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS) ==
MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS)
or even simpler:
if (test == MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_FS)
since multiple tests at the same time are not allowed.
> + seq_printf(s, "force host full-speed\n");
> +
> + else if (test & (MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_HS))
else if (test == MUSB_TEST_FORCE_HOST | MUSB_TEST_FORCE_HS)
Regards,
-Bin.
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