Module Name:    src
Committed By:   jmcneill
Date:           Wed Jan  2 18:39:01 UTC 2019

Modified Files:
        src/sys/arch/arm/sunxi: sunxi_mmc.c

Log Message:
Only set signal voltage if the regulator can handle it


To generate a diff of this commit:
cvs rdiff -u -r1.29 -r1.30 src/sys/arch/arm/sunxi/sunxi_mmc.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.

Modified files:

Index: src/sys/arch/arm/sunxi/sunxi_mmc.c
diff -u src/sys/arch/arm/sunxi/sunxi_mmc.c:1.29 src/sys/arch/arm/sunxi/sunxi_mmc.c:1.30
--- src/sys/arch/arm/sunxi/sunxi_mmc.c:1.29	Wed Jan  2 17:28:18 2019
+++ src/sys/arch/arm/sunxi/sunxi_mmc.c	Wed Jan  2 18:39:01 2019
@@ -1,4 +1,4 @@
-/* $NetBSD: sunxi_mmc.c,v 1.29 2019/01/02 17:28:18 jmcneill Exp $ */
+/* $NetBSD: sunxi_mmc.c,v 1.30 2019/01/02 18:39:01 jmcneill Exp $ */
 
 /*-
  * Copyright (c) 2014-2017 Jared McNeill <jmcne...@invisible.ca>
@@ -29,7 +29,7 @@
 #include "opt_sunximmc.h"
 
 #include <sys/cdefs.h>
-__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.29 2019/01/02 17:28:18 jmcneill Exp $");
+__KERNEL_RCSID(0, "$NetBSD: sunxi_mmc.c,v 1.30 2019/01/02 18:39:01 jmcneill Exp $");
 
 #include <sys/param.h>
 #include <sys/bus.h>
@@ -911,6 +911,10 @@ sunxi_mmc_signal_voltage(sdmmc_chipset_h
 		return EINVAL;
 	}
 
+	error = fdtbus_regulator_supports_voltage(sc->sc_reg_vqmmc, uvol, uvol);
+	if (error != 0)
+		return 0;
+
 	error = fdtbus_regulator_set_voltage(sc->sc_reg_vqmmc, uvol, uvol);
 	if (error != 0)
 		return error;

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