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Commit f4d64936 authored by Jani Nikula's avatar Jani Nikula
Browse files

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: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/d8a2998977feee2f5b5ad609aaca787adfb41479.1450702954.git.jani.nikula@intel.com
parent bc3b9346

drivers/gpu/drm/i915/intel_bios.c

+5 −0
Original line number Diff line number Diff line
@@ -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;

drivers/gpu/drm/i915/intel_bios.h

+1 −1
Original line number Diff line number Diff line
@@ -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

};