From f4d64936afb414fd5af3ac301919407273fb74a4 Mon Sep 17 00:00:00 2001 From: Jani Nikula Date: Mon, 21 Dec 2015 15:11:00 +0200 Subject: [PATCH] drm/i915/bios: interpret the i2c element MIME-Version: 1.0 Content-Type: text/plain; charset=utf8 Content-Transfer-Encoding: 8bit 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 Signed-off-by: Jani Nikula Link: http://patchwork.freedesktop.org/patch/msgid/d8a2998977feee2f5b5ad609aaca787adfb41479.1450702954.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_bios.c | 5 +++++ drivers/gpu/drm/i915/intel_bios.h | 2 +- 2 files changed, 6 insertions(+), 1 deletion(-) 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; diff --git a/drivers/gpu/drm/i915/intel_bios.h b/drivers/gpu/drm/i915/intel_bios.h index 4e87df16e7b3..411b33794536 100644 --- a/drivers/gpu/drm/i915/intel_bios.h +++ b/drivers/gpu/drm/i915/intel_bios.h @@ -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 }; -- 2.20.1