staging/nvec: update comment regarding udelay in the isr

Update the comment before the udelay on how to replace it.
Signed-off-by: Marc Dietrich <marvin24@gmx.de>
Link: https://lore.kernel.org/r/20240218212557.22836-1-marvin24@gmx.deSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/nvec/nvec.c

@@ -709,10 +709,11 @@ static irqreturn_t nvec_interrupt(int irq, void *dev)
 		status & RNW ? " RNW" : "");
 
 	/*
-	 * TODO: A correct fix needs to be found for this.
+	 * TODO: replace the udelay with a read back after each writel above
+	 * in order to work around a hardware issue, see i2c-tegra.c
 	 *
-	 * We experience less incomplete messages with this delay than without
-	 * it, but we don't know why. Help is appreciated.
+	 * Unfortunately, this change causes an intialisation issue with the
+	 * touchpad, which needs to be fixed first.
 	 */
 	udelay(100);