[Intel-gfx] [PATCH 1/2] drm/i915: Fix power domain reference balance when DMC firmware is not present

[José Roberto de Souza]

intel_csr_ucode_init() gets a POWER_DOMAIN_INIT reference but it is
only released in csr_load_work_fn() if DMC firmware is present in
filesystem, keeping a reference to POWER_DOMAIN_INIT and every power
well enabled all the times.

Cc: Imre Deak <imre.deak at intel.com>
Signed-off-by: José Roberto de Souza <jose.souza at intel.com>
---
 drivers/gpu/drm/i915/intel_csr.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index fc7bd21fa586..7c91a56869e9 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -423,8 +423,6 @@ static void csr_load_work_fn(struct work_struct *work)
 	if (dev_priv->csr.dmc_payload) {
 		intel_csr_load_program(dev_priv);
 
-		intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
-
 		DRM_INFO("Finished loading DMC firmware %s (v%u.%u)\n",
 			 dev_priv->csr.fw_path,
 			 CSR_VERSION_MAJOR(csr->version),
@@ -439,6 +437,8 @@ static void csr_load_work_fn(struct work_struct *work)
 	}
 
 	release_firmware(fw);
+
+	intel_display_power_put(dev_priv, POWER_DOMAIN_INIT);
 }
 
 /**
-- 
2.19.1