ARM: OMAP2+: Enable pinctrl dummy states

Enable pinctrl dummy states for all OMAP platforms that don't
populate DT. This allows drivers to be converted to pinctrl
and not generate new warnings on platforms that do not provide
pinctrl data. These platforms already have pinmuxes configured
before the drivers probe.

Signed-off-by: Matt Porter <mporter@ti.com>
Signed-off-by: Tony Lindgren <tony@atomide.com>

arch/arm/mach-omap2/devices.c

@@ -17,6 +17,7 @@
 #include <linux/err.h>
 #include <linux/slab.h>
 #include <linux/of.h>
+#include <linux/pinctrl/machine.h>
 #include <linux/platform_data/omap4-keypad.h>
 
 #include <asm/mach-types.h>
@@ -628,6 +629,10 @@ static inline void omap_init_vout(void) {}
 
 static int __init omap2_init_devices(void)
 {
+	/* Enable dummy states for those platforms without pinctrl support */
+	if (!of_have_populated_dt())
+		pinctrl_provide_dummies();
+
 	/*
 	 * please keep these calls, and their implementations above,
 	 * in alphabetical order so they're easier to sort through.