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| author | Ville Syrjälä <ville.syrjala@linux.intel.com> | 2017-11-23 21:41:56 +0200 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-12-05 11:24:35 +0100 |
| commit | 838cdb26a538aa83326639f53ce4f8112f23dd96 (patch) | |
| tree | 6325d2ea2142c9a180e7ca1433e9a77d664773d3 /drivers/dma/sh/rcar-dmac.c | |
| parent | daf3a68d52826e697eb20c1f290aa198d43dfad5 (diff) | |
drm/i915: Don't try indexed reads to alternate slave addresses
commit ae5c631e605a452a5a0e73205a92810c01ed954b upstream.
We can only specify the one slave address to indexed reads/writes.
Make sure the messages we check are destined to the same slave
address before deciding to do an indexed transfer.
Cc: Daniel Kurtz <djkurtz@chromium.org>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Cc: Sean Paul <seanpaul@chromium.org>
Fixes: 56f9eac05489 ("drm/i915/intel_i2c: use INDEX cycles for i2c read transactions")
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20171123194157.25367-2-ville.syrjala@linux.intel.com
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
(cherry picked from commit c4deb62d7821672265b87952bcd1c808f3bf3e8f)
Signed-off-by: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/dma/sh/rcar-dmac.c')
0 files changed, 0 insertions, 0 deletions