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ARM: vexpress: Add fixed regulator for SMSC

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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>
This commit is contained in:
Pawel Moll 2012-07-09 11:33:47 +01:00
parent b7541a950f
commit b2a54ff03c
4 changed files with 31 additions and 0 deletions
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1
arch/arm/Kconfig
View file

@ -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.

10
arch/arm/boot/dts/vexpress-v2m-rs1.dtsi
View file

@ -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;
};
};
};

10
arch/arm/boot/dts/vexpress-v2m.dtsi
View file

@ -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;
};
};
};

10
arch/arm/mach-vexpress/v2m.c
View file

@ -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);