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drm/i915/dsi: skip gpio element execution when not supported
Skip v3 gpio element because the support is not there, and skip gpio
element on non-vlv because the sideband code is vlv specific.
v2: the gpio stuff is currently only supported on vlv (Ville)
Cc: drm-intel-fixes@lists.freedesktop.org
Fixes: 2a33d93486
("drm/i915/bios: add support for MIPI sequence block v3")
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/1454604767-2440-1-git-send-email-jani.nikula@intel.com
This commit is contained in:
parent
dfb19ed20c
commit
96afef1d5a
@ -204,6 +204,9 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
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struct drm_device *dev = intel_dsi->base.base.dev;
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struct drm_i915_private *dev_priv = dev->dev_private;
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if (dev_priv->vbt.dsi.seq_version >= 3)
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data++;
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gpio = *data++;
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/* pull up/down */
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@ -214,6 +217,16 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data)
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goto out;
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}
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if (!IS_VALLEYVIEW(dev_priv)) {
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DRM_DEBUG_KMS("GPIO element not supported on this platform\n");
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goto out;
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}
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if (dev_priv->vbt.dsi.seq_version >= 3) {
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DRM_DEBUG_KMS("GPIO element v3 not supported\n");
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goto out;
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}
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function = gtable[gpio].function_reg;
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pad = gtable[gpio].pad_reg;
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