From 9926332c5a6aefd0cb1b96123787595f84bb9e08 Mon Sep 17 00:00:00 2001
From: Infnorm <infnorm@users.noreply.github.com>
Date: Sat, 16 Sep 2023 15:26:44 -0700
Subject: [PATCH] Allow driver to be considered ok even if only update_rpm is
 added

Not sure if this is correct, but the simulator for example only
initializes update_rpm with certain flag settings.
---
 grbllib.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/grbllib.c b/grbllib.c
index f2c5f294..dd080e8f 100644
--- a/grbllib.c
+++ b/grbllib.c
@@ -260,7 +260,7 @@ int grbl_enter (void)
 
     if((driver.spindle = spindle_select(settings.spindle.flags.type))) {
         spindle_ptrs_t *spindle = spindle_get(0);
-        driver.spindle = spindle->get_pwm == NULL || spindle->update_pwm != NULL;
+        driver.spindle = spindle->get_pwm == NULL || spindle->update_pwm != NULL || spindle->update_rpm != NULL;
     } else
         driver.spindle = spindle_select(spindle_add_null());