iv/linux
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

drm/i915/bios: interpret the i2c element

Browse Source 
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
This commit is contained in:
Jani Nikula 2015-12-21 15:11:00 +02:00
parent bc3b9346cd
commit f4d64936af
2 changed files with 6 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

5
drivers/gpu/drm/i915/intel_bios.c
View File

@ -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;

2
drivers/gpu/drm/i915/intel_bios.h
View File

@ -968,7 +968,7 @@ enum mipi_seq_element {
MIPI_SEQ_ELEM_SEND_PKT,
MIPI_SEQ_ELEM_DELAY,
MIPI_SEQ_ELEM_GPIO,
MIPI_SEQ_ELEM_STATUS,
MIPI_SEQ_ELEM_I2C, /* sequence block v2+ */
MIPI_SEQ_ELEM_MAX
};