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-fi...@lists.freedesktop.org
Fixes: 2a33d93486f2 ("drm/i915/bios: add support for MIPI sequence block v3")
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
---
drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
index f4d303ee538b..bcc083db7632 100644
--- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
@@ -205,6 +205,9 @@ static const u8 *mipi_exec_gpio(struct intel_dsi
*intel_dsi, const u8 *data)
struct drm_device *dev = intel_dsi->base.base.dev;
struct drm_i915_private *dev_priv = dev->dev_private;
+ if (dev_priv->vbt.dsi.seq_version >= 3)
+ data++;
+
gpio = *data++;
/* pull up/down */
@@ -215,6 +218,16 @@ static const u8 *mipi_exec_gpio(struct intel_dsi
*intel_dsi, const u8 *data)
goto out;
}
+ if (!IS_VALLEYVIEW(dev_priv)) {
+ DRM_DEBUG_KMS("GPIO element not supported on this platform\n");
+ goto out;
+ }
+
+ if (dev_priv->vbt.dsi.seq_version >= 3) {
+ DRM_DEBUG_KMS("GPIO element v3 not supported\n");
+ goto out;
+ }
+
function = gtable[gpio].function_reg;
pad = gtable[gpio].pad_reg;
--
2.1.4
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