diff options
Diffstat (limited to 'kernel/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c')
| -rw-r--r-- | kernel/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c | 12 |
1 files changed, 9 insertions, 3 deletions
diff --git a/kernel/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/kernel/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c index d2cd8d5b2..a8912aecc 100644 --- a/kernel/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c +++ b/kernel/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c @@ -207,12 +207,17 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data) gpio = *data++; /* pull up/down */ - action = *data++; + action = *data++ & 1; + + if (gpio >= ARRAY_SIZE(gtable)) { + DRM_DEBUG_KMS("unknown gpio %u\n", gpio); + goto out; + } function = gtable[gpio].function_reg; pad = gtable[gpio].pad_reg; - mutex_lock(&dev_priv->dpio_lock); + mutex_lock(&dev_priv->sb_lock); if (!gtable[gpio].init) { /* program the function */ /* FIXME: remove constant below */ @@ -224,8 +229,9 @@ static const u8 *mipi_exec_gpio(struct intel_dsi *intel_dsi, const u8 *data) /* pull up/down */ vlv_gpio_nc_write(dev_priv, pad, val); - mutex_unlock(&dev_priv->dpio_lock); + mutex_unlock(&dev_priv->sb_lock); +out: return data; } |