From: Joey Castillo <joeycastillo@utexas.edu>
Date: Sat, 15 Mar 2025 13:35:58 +0000 (-0400)
Subject: don't run LCD discovery if display is already running
X-Git-Url: https://git.earman.xyz/?a=commitdiff_plain;h=f52b150c0b583ac0aadef0d2783a277f88ed241c;p=sensor-watch.git

don't run LCD discovery if display is already running
---

diff --git a/watch-library/hardware/watch/watch_slcd.c b/watch-library/hardware/watch/watch_slcd.c
index 0d12417..13df0ba 100644
--- a/watch-library/hardware/watch/watch_slcd.c
+++ b/watch-library/hardware/watch/watch_slcd.c
@@ -128,6 +128,10 @@ watch_lcd_type_t watch_get_lcd_type(void) {
 }
 
 void watch_enable_display(void) {
+    // No need to do anything if the display is already enabled.
+    /// TODO: Wrap this in a gossamer call.
+    if (SLCD->CTRLA.bit.ENABLE) return;
+
     watch_discover_lcd_type();
 
     HAL_GPIO_SLCD0_pmuxen(HAL_GPIO_PMUX_B);