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drm/i915/dsi: disable lpdt if it is not enabled

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Avoid setting LP_DATA_TRANSFER when enable_lpdt is false

Cc: Ville Syrjala <ville.syrjala@linux.intel.com>
Cc: Jani Nikula <jani.nikula@linux.intel.com>
Cc: Vandita Kulkarni <vandita.kulkarni@intel.com>
Cc: Lee Shawn C <shawn.c.lee@intel.com>
Cc: Cooper Chiou <cooper.chiou@intel.com>
Signed-off-by: William Tseng <william.tseng@intel.com>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20211109034125.11291-1-william.tseng@intel.com
This commit is contained in:
William Tseng
2021-11-09 11:41:25 +08:00
committed by Jani Nikula
parent cf9420cb12
commit 38a1b50c03
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/i915/display/icl_dsi.c
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@@ -183,6 +183,8 @@ static int dsi_send_pkt_hdr(struct intel_dsi_host *host,
if (enable_lpdt)
tmp |= LP_DATA_TRANSFER;
else
tmp &= ~LP_DATA_TRANSFER;
tmp &= ~(PARAM_WC_MASK | VC_MASK | DT_MASK);
tmp |= ((packet->header[0] & VC_MASK) << VC_SHIFT);