[PATCH 04/13] drm/i915/dp: Update Bigjoiner interface bits for computing compressed bpp

[Ankit Nautiyal]

In Bigjoiner check for DSC, bigjoiner interface bits for DP for
DISPLAY > 13 is 36 (Bspec: 49259).

v2: Corrected Display ver to 13.

v3: Follow convention for conditional statement. (Ville)

Signed-off-by: Ankit Nautiyal <ankit.k.nauti...@intel.com>
---
 drivers/gpu/drm/i915/display/intel_dp.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/display/intel_dp.c 
b/drivers/gpu/drm/i915/display/intel_dp.c
index 24de25551a49..bca80c0793e9 100644
--- a/drivers/gpu/drm/i915/display/intel_dp.c
+++ b/drivers/gpu/drm/i915/display/intel_dp.c
@@ -783,8 +783,9 @@ u16 intel_dp_dsc_get_max_compressed_bpp(struct 
drm_i915_private *i915,
        bits_per_pixel = min(bits_per_pixel, max_bpp_small_joiner_ram);
 
        if (bigjoiner) {
+               int bigjoiner_interface_bits = DISPLAY_VER(i915) > 13 ? 36 : 24;
                u32 max_bpp_bigjoiner =
-                       i915->display.cdclk.max_cdclk_freq * 48 /
+                       i915->display.cdclk.max_cdclk_freq * 2 * 
bigjoiner_interface_bits /
                        intel_dp_mode_to_fec_clock(mode_clock);
 
                bits_per_pixel = min(bits_per_pixel, max_bpp_bigjoiner);
-- 
2.25.1