[Intel-gfx] [BXT DMC PATCHES 1/3] drm/i915/bxt: Path added of dmc firmware ver1 for BXT.

[Animesh Manna]

Broxton also has dmc to manage low-power display engine state.
Path of the firmware added in intel_csr.c.

Naming convention followed as <platform>_dmc_<api-version>.bin

v1: Initial version.

v2: Commit description added based on review comment from Sunil.

Cc: Damien Lespiau <damien.lespiau at intel.com>
Cc: Rodrigo Vivi <rodrigo.vivi at intel.com>
Cc: Sunil Kamath <sunil.kamath at intel.com>
Signed-off-by: Animesh Manna <animesh.manna at intel.com>
---
 drivers/gpu/drm/i915/intel_csr.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/i915/intel_csr.c b/drivers/gpu/drm/i915/intel_csr.c
index 18a0670..c89b9ce 100644
--- a/drivers/gpu/drm/i915/intel_csr.c
+++ b/drivers/gpu/drm/i915/intel_csr.c
@@ -42,8 +42,10 @@
  */
 
 #define I915_CSR_SKL "i915/skl_dmc_ver1.bin"
+#define I915_CSR_BXT "i915/bxt_dmc_ver1.bin"
 
 MODULE_FIRMWARE(I915_CSR_SKL);
+MODULE_FIRMWARE(I915_CSR_BXT);
 
 struct intel_css_header {
 	/* 0x09 for DMC */
@@ -372,6 +374,8 @@ void intel_csr_ucode_init(struct drm_i915_private *dev_priv)
 
 	if (IS_SKYLAKE(dev_priv))
 		csr->fw_path = I915_CSR_SKL;
+	else if (IS_BROXTON(dev_priv))
+		csr->fw_path = I915_CSR_BXT;
 	else {
 		DRM_ERROR("Unexpected: no known CSR firmware for platform\n");
 		return;
-- 
2.0.2