From 35b289f3444ba4ed5a11a8ba8237411870dbfe55 Mon Sep 17 00:00:00 2001
From: Sebastian Holzapfel <me@sebholzapfel.com>
Date: Sun, 8 Oct 2023 13:10:23 +0200
Subject: [PATCH] fence is fine with proper optimisations - looking at 14msec
 :)

---
 firmware/litex-fw/src/main.rs | 2 +-
 firmware/ssd1322              | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/firmware/litex-fw/src/main.rs b/firmware/litex-fw/src/main.rs
index 00ac29f..6025876 100644
--- a/firmware/litex-fw/src/main.rs
+++ b/firmware/litex-fw/src/main.rs
@@ -407,13 +407,13 @@ fn main() -> ! {
 
         let fb = disp.swap_clear();
         unsafe {
+            fence();
             while peripherals.SPI_DMA.done.read().bits() == 0 {
                 // Don't start to DMA a new framebuffer if we're still
                 // pushing through the last one.
             }
             peripherals.SPI_DMA.read_base.write(|w| w.bits(fb.as_ptr() as u32));
             peripherals.SPI_DMA.read_length.write(|w| w.bits(fb.len() as u32));
-            fence();
             peripherals.SPI_DMA.start.write(|w| w.start().bit(true));
             peripherals.SPI_DMA.start.write(|w| w.start().bit(false));
         }
diff --git a/firmware/ssd1322 b/firmware/ssd1322
index 8ff05f6..d611f97 160000
--- a/firmware/ssd1322
+++ b/firmware/ssd1322
@@ -1 +1 @@
-Subproject commit 8ff05f65ceb9bec498f6915534bfdf9e1245c058
+Subproject commit d611f97974af000273a69541a4baa0482dd43dfa