[6.1 BACKPORT 2/2] drm/i915/dsi: fix MIPI_BKLT_EN_1 native GPIO index

[Jani Nikula <jani.nikula@intel.com>]

commit 6217e9f05a74df48c77ee68993d587cdfdb1feb7 upstream.

Due to copy-paste fail, MIPI_BKLT_EN_1 would always use PPS index 1,
never 0. Fix the sloppiest commit in recent memory.

Fixes: 963bbdb32b47 ("drm/i915/dsi: add support for ICL+ native MIPI GPIO sequence")
Reported-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20221220140105.313333-1-jani.nikula@intel.com
(cherry picked from commit a561933c571798868b5fa42198427a7e6df56c09)
Cc: stable@vger.kernel.org # 6.1
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dsi_vbt.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
index e3e0cb4da491..f29e239bb27d 100644
--- a/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
+++ b/drivers/gpu/drm/i915/display/intel_dsi_vbt.c
@@ -430,7 +430,7 @@ static void icl_native_gpio_set_value(struct drm_i915_private *dev_priv,
 		break;
 	case MIPI_BKLT_EN_1:
 	case MIPI_BKLT_EN_2:
-		index = gpio == MIPI_AVDD_EN_1 ? 0 : 1;
+		index = gpio == MIPI_BKLT_EN_1 ? 0 : 1;
 
 		intel_de_rmw(dev_priv, PP_CONTROL(index), EDP_BLC_ENABLE,
 			     value ? EDP_BLC_ENABLE : 0);
-- 
2.34.1