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authorPawel Moll2012-07-09 11:33:47 +0100
committerPawel Moll2012-07-13 11:48:28 +0100
commitb2a54ff03ca80f11f3760f4eab9a955e7215f569 (patch)
tree0b1b658ff7992a052fd18949eb3a4f691544182e /arch/arm
parentb7541a950f27fc9237ce1fcb5c2284ee5c71efe3 (diff)
ARM: vexpress: Add fixed regulator for SMSC
SMSC driver requires "vdd33a" and "vddvario" regulator supplies now. Add fixed regulator describing 3V3 power line (in both motherboard's Device Trees and the non-DT code) and force fixed regulator config option if regulators framework is enabled. Signed-off-by: Pawel Moll <pawel.moll@arm.com>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/Kconfig1
-rw-r--r--arch/arm/boot/dts/vexpress-v2m-rs1.dtsi10
-rw-r--r--arch/arm/boot/dts/vexpress-v2m.dtsi10
-rw-r--r--arch/arm/mach-vexpress/v2m.c10
4 files changed, 31 insertions, 0 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig
index 6374a08a6cab..cb15fca4dd04 100644
--- a/arch/arm/Kconfig
+++ b/arch/arm/Kconfig
@@ -318,6 +318,7 @@ config ARCH_VEXPRESS
select NO_IOPORT
select PLAT_VERSATILE
select PLAT_VERSATILE_CLCD
+ select REGULATOR_FIXED_VOLTAGE if REGULATOR
help
This enables support for the ARM Ltd Versatile Express boards.
diff --git a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
index 142c72a938d3..d8a827bd2bf3 100644
--- a/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
+++ b/arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
@@ -55,6 +55,8 @@
reg-io-width = <4>;
smsc,irq-active-high;
smsc,irq-push-pull;
+ vdd33a-supply = <&v2m_fixed_3v3>;
+ vddvario-supply = <&v2m_fixed_3v3>;
};
usb@2,03000000 {
@@ -198,5 +200,13 @@
interrupts = <14>;
};
};
+
+ v2m_fixed_3v3: fixedregulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
};
};
diff --git a/arch/arm/boot/dts/vexpress-v2m.dtsi b/arch/arm/boot/dts/vexpress-v2m.dtsi
index 47ee30791f44..dba53fd026bb 100644
--- a/arch/arm/boot/dts/vexpress-v2m.dtsi
+++ b/arch/arm/boot/dts/vexpress-v2m.dtsi
@@ -54,6 +54,8 @@
reg-io-width = <4>;
smsc,irq-active-high;
smsc,irq-push-pull;
+ vdd33a-supply = <&v2m_fixed_3v3>;
+ vddvario-supply = <&v2m_fixed_3v3>;
};
usb@3,03000000 {
@@ -197,5 +199,13 @@
interrupts = <14>;
};
};
+
+ v2m_fixed_3v3: fixedregulator@0 {
+ compatible = "regulator-fixed";
+ regulator-name = "3V3";
+ regulator-min-microvolt = <3300000>;
+ regulator-max-microvolt = <3300000>;
+ regulator-always-on;
+ };
};
};
diff --git a/arch/arm/mach-vexpress/v2m.c b/arch/arm/mach-vexpress/v2m.c
index a3652a4ddc40..37608f22ee31 100644
--- a/arch/arm/mach-vexpress/v2m.c
+++ b/arch/arm/mach-vexpress/v2m.c
@@ -18,6 +18,8 @@
#include <linux/clkdev.h>
#include <linux/clk-provider.h>
#include <linux/mtd/physmap.h>
+#include <linux/regulator/fixed.h>
+#include <linux/regulator/machine.h>
#include <asm/arch_timer.h>
#include <asm/mach-types.h>
@@ -199,6 +201,11 @@ static struct platform_device v2m_eth_device = {
.dev.platform_data = &v2m_eth_config,
};
+static struct regulator_consumer_supply v2m_eth_supplies[] = {
+ REGULATOR_SUPPLY("vddvario", "smsc911x"),
+ REGULATOR_SUPPLY("vdd33a", "smsc911x"),
+};
+
static struct resource v2m_usb_resources[] = {
{
.start = V2M_ISP1761,
@@ -503,6 +510,9 @@ static void __init v2m_init(void)
{
int i;
+ regulator_register_fixed(0, v2m_eth_supplies,
+ ARRAY_SIZE(v2m_eth_supplies));
+
platform_device_register(&v2m_pcie_i2c_device);
platform_device_register(&v2m_ddc_i2c_device);
platform_device_register(&v2m_flash_device);