[coreboot-gerrit] Change in ...libgfxinit[master]: gma i2c: Try to clear NAK indicator

[Nico Huber (Code Review)]

Nico Huber has uploaded this change for review. ( https://review.coreboot.org/c/libgfxinit/+/32491

Change subject: gma i2c: Try to clear NAK indicator
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gma i2c: Try to clear NAK indicator

Change-Id: I7df80d8757e1d14e288d9424240e873cf5a5fd29
Signed-off-by: Nico Huber 
---
M common/hw-gfx-gma-i2c.adb
1 file changed, 4 insertions(+), 0 deletions(-)

git pull ssh://review.coreboot.org:29418/libgfxinit refs/changes/91/32491/1

diff --git a/common/hw-gfx-gma-i2c.adb b/common/hw-gfx-gma-i2c.adb
index d8cdf44..e5cf010 100644
--- a/common/hw-gfx-gma-i2c.adb
+++ b/common/hw-gfx-gma-i2c.adb
@@ -251,6 +251,10 @@
               (Register => GMBUS_Regs (2),
                Mask     => GMBUS2_GMBUS_ACTIVE);
          end if;
+         if (GMBUS2 and GMBUS2_NAK_INDICATOR) /= 0 then
+            Reset_GMBUS (Success);
+            Success := False;
+         end if;
       end if;
       Length := Transfered;