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| author | Arnaud Patard (Rtp) <arnaud.patard@rtp-net.org> | 2011-02-17 15:31:30 +0100 |
|---|---|---|
| committer | Sascha Hauer <s.hauer@pengutronix.de> | 2011-02-18 10:56:39 +0100 |
| commit | 2432cff0fc1c9d1a41476994b18fda04bf9f2686 (patch) | |
| tree | 08248196bbba989840fba9460997c4ce5e034b28 /arch/arm/mach-mx5/board-mx51_efikamx.c | |
| parent | efikamx: add usb h1 support (diff) | |
| download | linux-2432cff0fc1c9d1a41476994b18fda04bf9f2686.tar.xz linux-2432cff0fc1c9d1a41476994b18fda04bf9f2686.zip | |
efikamx: add mc13892 support / implement power off
This patch declares regulators for the efikamx. Use it also to power off the
efikamx.
Unfortunately, on the efikamx to2 boards, this doesn't work but they allow to
power off by setting GPIO 4 13 to high level instead of powering off through
the mc13892.
Signed-off-by: Arnaud Patard <arnaud.patard@rtp-net.org>
Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>
Diffstat (limited to 'arch/arm/mach-mx5/board-mx51_efikamx.c')
| -rw-r--r-- | arch/arm/mach-mx5/board-mx51_efikamx.c | 50 |
1 files changed, 50 insertions, 0 deletions
diff --git a/arch/arm/mach-mx5/board-mx51_efikamx.c b/arch/arm/mach-mx5/board-mx51_efikamx.c index 8f173366b29c..acab1911cb3c 100644 --- a/arch/arm/mach-mx5/board-mx51_efikamx.c +++ b/arch/arm/mach-mx5/board-mx51_efikamx.c @@ -25,6 +25,9 @@ #include <linux/fsl_devices.h> #include <linux/spi/flash.h> #include <linux/spi/spi.h> +#include <linux/mfd/mc13892.h> +#include <linux/regulator/machine.h> +#include <linux/regulator/consumer.h> #include <mach/common.h> #include <mach/hardware.h> @@ -56,6 +59,10 @@ #define EFIKAMX_RESET1_1 IMX_GPIO_NR(3, 2) #define EFIKAMX_RESET IMX_GPIO_NR(1, 4) +#define EFIKAMX_POWEROFF IMX_GPIO_NR(4, 13) + +#define EFIKAMX_PMIC IMX_GPIO_NR(1, 6) + /* the pci ids pin have pull up. they're driven low according to board id */ #define MX51_PAD_PCBID0 IOMUX_PAD(0x518, 0x130, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) #define MX51_PAD_PCBID1 IOMUX_PAD(0x51C, 0x134, 3, 0x0, 0, PAD_CTL_PUS_100K_UP) @@ -79,6 +86,9 @@ static iomux_v3_cfg_t mx51efikamx_pads[] = { /* reset */ MX51_PAD_DI1_PIN13__GPIO3_2, MX51_PAD_GPIO1_4__GPIO1_4, + + /* power off */ + MX51_PAD_CSI2_VSYNC__GPIO4_13, }; /* PCBID2 PCBID1 PCBID0 STATE @@ -187,6 +197,46 @@ void mx51_efikamx_reset(void) gpio_direction_output(EFIKAMX_RESET, 0); } +static struct regulator *pwgt1, *pwgt2, *coincell; + +static void mx51_efikamx_power_off(void) +{ + if (!IS_ERR(coincell)) + regulator_disable(coincell); + + if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) { + regulator_disable(pwgt2); + regulator_disable(pwgt1); + } + gpio_direction_output(EFIKAMX_POWEROFF, 1); +} + +static int __init mx51_efikamx_power_init(void) +{ + if (machine_is_mx51_efikamx()) { + pwgt1 = regulator_get(NULL, "pwgt1"); + pwgt2 = regulator_get(NULL, "pwgt2"); + if (!IS_ERR(pwgt1) && !IS_ERR(pwgt2)) { + regulator_enable(pwgt1); + regulator_enable(pwgt2); + } + gpio_request(EFIKAMX_POWEROFF, "poweroff"); + pm_power_off = mx51_efikamx_power_off; + + /* enable coincell charger. maybe need a small power driver ? */ + coincell = regulator_get(NULL, "coincell"); + if (!IS_ERR(coincell)) { + regulator_set_voltage(coincell, 3000000, 3000000); + regulator_enable(coincell); + } + + regulator_has_full_constraints(); + } + + return 0; +} +late_initcall(mx51_efikamx_power_init); + static void __init mx51_efikamx_init(void) { mxc_iomux_v3_setup_multiple_pads(mx51efikamx_pads, |