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Commit 22ca0d49 authored by Hans de Goede's avatar Hans de Goede Committed by Jani Nikula
Browse files

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: a0a6d4ff ("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: default avatarHans de Goede <hdegoede@redhat.com>
Reviewed-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20161201202925.12220-3-hdegoede@redhat.com


Signed-off-by: default avatarVille Syrjälä <ville.syrjala@linux.intel.com>
(cherry picked from commit b2b45fcd)
Signed-off-by: default avatarJani Nikula <jani.nikula@intel.com>
parent 25e23bc5

drivers/gpu/drm/i915/intel_dsi_panel_vbt.c

+2 −1
Original line number Diff line number Diff line
@@ -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);

}