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authorStefan Agner <stefan@agner.ch>2013-12-06 13:51:46 +0100
committerLee Jones <lee.jones@linaro.org>2014-01-21 08:28:01 +0000
commit844a4f0d8a5ae075e06b6a673bbc0596510046df (patch)
tree5a02a6de3bd27ced52e31b049d45e4068c63dd91 /arch/arm/boot
parente0a3da80c65dc427c30829eb3e361507f843778f (diff)
regulator: tps6586x: Add and use correct voltage table
Depending on the regulator version, the voltage table might be different. Use version specific regulator tables in order to select correct voltage table. For the following regulator versions different voltage tables are now used: * TPS658623: Use correct voltage table for SM2 * TPS658643: New voltage table for SM2 Both versions are in use on the Colibri T20 module. Make use of the correct tables by requesting the correct SM2 voltage of 1.8V. This change is not backward compatible since an old driver is not able to correctly set that value. The value 1.8V is out of range for the old driver and will refuse to probe the device. The regulator starts with default settings and the driver shows appropriate error messages. On Colibri T20, the old value used to work with TPS658623 since the driver applied a wrong voltage table too. However, the TPS658643 used on V1.2 devices uses yet another voltage table and those broke that pseudo-compatibility. The regulator driver now has the correct voltage table for both regulator versions and those the correct voltage can be used in the device tree. Signed-off-by: Stefan Agner <stefan@agner.ch> Reviewed-by: Thierry Reding <treding@nvidia.com> Acked-by: Mark Brown <broonie@linaro.org> Acked-by: Stephen Warren <swarren@nvidia.com> Signed-off-by: Lee Jones <lee.jones@linaro.org>
Diffstat (limited to 'arch/arm/boot')
-rw-r--r--arch/arm/boot/dts/tegra20-colibri-512.dtsi4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/boot/dts/tegra20-colibri-512.dtsi b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
index d5c9bca01232..cbe89ff10686 100644
--- a/arch/arm/boot/dts/tegra20-colibri-512.dtsi
+++ b/arch/arm/boot/dts/tegra20-colibri-512.dtsi
@@ -268,8 +268,8 @@
reg = <3>;
regulator-compatible = "sm2";
regulator-name = "vdd_sm2,vin_ldo*";
- regulator-min-microvolt = <3700000>;
- regulator-max-microvolt = <3700000>;
+ regulator-min-microvolt = <1800000>;
+ regulator-max-microvolt = <1800000>;
regulator-always-on;
};