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authorHans de Goede <hdegoede@redhat.com>2016-12-01 21:29:09 +0100
committerJani Nikula <jani.nikula@intel.com>2016-12-20 16:28:38 +0200
commit22ca0d4991169b76e753d767a45f1105c356bbb8 (patch)
tree7f0f17d39fd579721a289650514f41b28f428635 /drivers/gpu
parent25e23bc57e737a0d81dc6b03c610789866858b35 (diff)
drm/i915/dsi: Fix chv_exec_gpio disabling the GPIOs it is setting
Set the CHV_GPIO_GPIOEN bit when updating GPIOs from chv_exec_gpio. Fixes: a0a6d4ffd2ad ("drm/i915/dsi: add support for gpio elements on CHV") Cc: stable@vger.kernel.org Cc: Jani Nikula <jani.nikula@intel.com> Cc: Ville Syrjälä <ville.syrjala@linux.intel.com> Signed-off-by: Hans de Goede <hdegoede@redhat.com> Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com> Link: http://patchwork.freedesktop.org/patch/msgid/20161201202925.12220-3-hdegoede@redhat.com Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com> (cherry picked from commit b2b45fcd921e864a5e9bbc7aa55dee96d5e11c06) Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Diffstat (limited to 'drivers/gpu')
-rw-r--r--drivers/gpu/drm/i915/intel_dsi_panel_vbt.c3
1 files changed, 2 insertions, 1 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
index 579d2f570717..47cd1b20fb3e 100644
--- a/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
+++ b/drivers/gpu/drm/i915/intel_dsi_panel_vbt.c
@@ -300,7 +300,8 @@ static void chv_exec_gpio(struct drm_i915_private *dev_priv,
mutex_lock(&dev_priv->sb_lock);
vlv_iosf_sb_write(dev_priv, port, cfg1, 0);
vlv_iosf_sb_write(dev_priv, port, cfg0,
- CHV_GPIO_GPIOCFG_GPO | CHV_GPIO_GPIOTXSTATE(value));
+ CHV_GPIO_GPIOEN | CHV_GPIO_GPIOCFG_GPO |
+ CHV_GPIO_GPIOTXSTATE(value));
mutex_unlock(&dev_priv->sb_lock);
}