drm/i915/dsi: add debug logging to element execution

Just simple breadcrumbs for now. While at it, rename the i2c skip
function.

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/d11c40a99f5ef2419ede87a2ac1858e4c60768b8.1474286487.git.jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
index a537c71cdcc6b669e8a7526eaf20302faaca94a8..89f77a142521104e18dff1108ac9536821a1d7fe 100644 (file)
--- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
@@ -126,6 +126,8 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi,
        u16 len;
        enum port port;
 
+       DRM_DEBUG_KMS("\n");
+
        flags = *data++;
        type = *data++;
 
@@ -199,6 +201,8 @@ static const u8 *mipi_exec_delay(struct intel_dsi *intel_dsi, const u8 *data)
 {
        u32 delay = *((const u32 *) data);
 
+       DRM_DEBUG_KMS("\n");
+
        usleep_range(delay, delay + 10);
        data += 4;
 
@@ -307,6 +311,8 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
        u8 gpio_source, gpio_index;
        bool value;
 
+       DRM_DEBUG_KMS("\n");
+
        if (dev_priv->vbt.dsi.seq_version >= 3)
                data++;
 
@@ -331,8 +337,10 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
        return data;
 }
 
-static const u8 *mipi_exec_i2c_skip(struct intel_dsi *intel_dsi, const u8 *data)
+static const u8 *mipi_exec_i2c(struct intel_dsi *intel_dsi, const u8 *data)
 {
+       DRM_DEBUG_KMS("Skipping I2C element execution\n");
+
        return data + *(data + 6) + 7;
 }
 
@@ -342,7 +350,7 @@ static const fn_mipi_elem_exec exec_elem[] = {
        [MIPI_SEQ_ELEM_SEND_PKT] = mipi_exec_send_packet,
        [MIPI_SEQ_ELEM_DELAY] = mipi_exec_delay,
        [MIPI_SEQ_ELEM_GPIO] = mipi_exec_gpio,
-       [MIPI_SEQ_ELEM_I2C] = mipi_exec_i2c_skip,
+       [MIPI_SEQ_ELEM_I2C] = mipi_exec_i2c,
 };
 
 /*