From f968c85bcef17bc0101fae7307b54b6a7025a197 Mon Sep 17 00:00:00 2001 From: Madhav Chauhan Date: Tue, 30 Oct 2018 13:56:42 +0200 Subject: [PATCH] drm/i915/icl: Don't wait for empty FIFO For Gen11 DSI, we don't need to wait for getting DSI FIFO empty after sending DCS commands. Signed-off-by: Madhav Chauhan Reviewed-by: Jani Nikula Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/5e078a0274c1fba2521cb14d7d02fd1038ec1b0e.1540900289.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/intel_dsi_vbt.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/gpu/drm/i915/intel_dsi_vbt.c b/drivers/gpu/drm/i915/intel_dsi_vbt.c index 80bd56e96143..a72de81f4832 100644 --- a/drivers/gpu/drm/i915/intel_dsi_vbt.c +++ b/drivers/gpu/drm/i915/intel_dsi_vbt.c @@ -111,6 +111,7 @@ static inline enum port intel_dsi_seq_port_to_port(u8 port) static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, const u8 *data) { + struct drm_i915_private *dev_priv = to_i915(intel_dsi->base.base.dev); struct mipi_dsi_device *dsi_device; u8 type, flags, seq_port; u16 len; @@ -181,7 +182,8 @@ static const u8 *mipi_exec_send_packet(struct intel_dsi *intel_dsi, break; } - vlv_dsi_wait_for_fifo_empty(intel_dsi, port); + if (!IS_ICELAKE(dev_priv)) + vlv_dsi_wait_for_fifo_empty(intel_dsi, port); out: data += len; -- 2.30.2