ieee1394: sbp2: add workarounds for 2nd and 3rd generation iPods

Commit 1448d7c6a2ff96d3b52ecae49e2d0f046a097fe0 upstream.

As per https://bugs.launchpad.net/bugs/294391.  These got one sample of
each iPod generation going.  However there still occurred I/O stalls
with the 3rd generation iPod which remain undiagnosed at the time of
this writing.

Acked-by: Jarod Wilson <jarod@redhat.com>
Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

diff --git a/drivers/ieee1394/sbp2.c b/drivers/ieee1394/sbp2.c
index bad46ea1609580f3e4e97b18449522adcb037d59..0c0fdbb66e233ce4a71305c63cbe7f73472aee38 100644 (file)
--- a/drivers/ieee1394/sbp2.c
+++ b/drivers/ieee1394/sbp2.c
@@ -395,6 +395,16 @@ static const struct {
                .model_id               = SBP2_ROM_VALUE_WILDCARD,
                .workarounds            = SBP2_WORKAROUND_128K_MAX_TRANS,
        },
+       /*
+        * iPod 2nd generation: needs 128k max transfer size workaround
+        * iPod 3rd generation: needs fix capacity workaround
+        */
+       {
+               .firmware_revision      = 0x0a2700,
+               .model_id               = 0x000000,
+               .workarounds            = SBP2_WORKAROUND_128K_MAX_TRANS |
+                                         SBP2_WORKAROUND_FIX_CAPACITY,
+       },
        /* iPod 4th generation */ {
                .firmware_revision      = 0x0a2700,
                .model_id               = 0x000021,