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: a0a6d4ffd2
("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>
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@ -300,7 +300,8 @@ static void chv_exec_gpio(struct drm_i915_private *dev_priv,
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mutex_lock(&dev_priv->sb_lock);
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vlv_iosf_sb_write(dev_priv, port, cfg1, 0);
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vlv_iosf_sb_write(dev_priv, port, cfg0,
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CHV_GPIO_GPIOCFG_GPO | CHV_GPIO_GPIOTXSTATE(value));
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CHV_GPIO_GPIOEN | CHV_GPIO_GPIOCFG_GPO |
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CHV_GPIO_GPIOTXSTATE(value));
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mutex_unlock(&dev_priv->sb_lock);
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}
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