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| author |   Jani Nikula <jani.nikula@intel.com> | 2015-12-21 15:11:00 +0200 |
|---|---|---|
| committer | Jani Nikula <jani.nikula@intel.com> | 2016-01-11 19:08:10 +0200 |
| commit | f4d64936afb414fd5af3ac301919407273fb74a4 (patch) | |
| tree | 8c5306ec9664d2476afdfca9e9a86aa382038c44 /drivers/gpu/drm/i915/intel_bios.c | |
| parent | drm/i915: Arm the unclaimed mmio debugs on suspend path (diff) | |
| download | linux-dev-f4d64936afb414fd5af3ac301919407273fb74a4.tar.xz linux-dev-f4d64936afb414fd5af3ac301919407273fb74a4.zip | |
drm/i915/bios: interpret the i2c element
Add parsing of the i2c element, defined in MIPI sequence block v2. Drop
the status operation byte while at it, that does not exist.
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/d8a2998977feee2f5b5ad609aaca787adfb41479.1450702954.git.jani.nikula@intel.com
Diffstat (limited to 'drivers/gpu/drm/i915/intel_bios.c')
| -rw-r--r-- | drivers/gpu/drm/i915/intel_bios.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/intel_bios.c b/drivers/gpu/drm/i915/intel_bios.c index 71c739e33101..69040a73c09a 100644 --- a/drivers/gpu/drm/i915/intel_bios.c +++ b/drivers/gpu/drm/i915/intel_bios.c @@ -812,6 +812,11 @@ static int goto_next_sequence(const u8 *data, int index, int total) case MIPI_SEQ_ELEM_GPIO: len = 2; break; + case MIPI_SEQ_ELEM_I2C: + if (index + 7 > total) + return 0; + len = *(data + index + 6) + 7; + break; default: DRM_ERROR("Unknown operation byte\n"); return 0; |