From: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
For Beagle, link two regulators to the MMC-1 host adapter.
Note: when MMC1 is used in 8 bit mode (e.g. for an MMCplus card)
DAT4..DAT7 I/O uses a separate supply (VSIM). But MMC_BUS_WIDTH_8
support isn't yet merged into the MMC framework.
Signed-off-by: David Brownell <dbrownell@xxxxxxxxxxxxxxxxxxxxx>
---
arch/arm/mach-omap2/board-omap3beagle.c | 16 ++++++++++++++++
1 file changed, 16 insertions(+)
--- a/arch/arm/mach-omap2/board-omap3beagle.c
+++ b/arch/arm/mach-omap2/board-omap3beagle.c
@@ -126,6 +126,14 @@ static struct twl4030_hsmmc_info mmc[] =
{} /* Terminator */
};
+static struct regulator_consumer_supply beagle_vmmc1_supply = {
+ .supply = "vmmc",
+};
+
+static struct regulator_consumer_supply beagle_vsim_supply = {
+ .supply = "vmmc_dat4..7",
+};
+
static struct gpio_led gpio_leds[];
static int beagle_twl_gpio_setup(struct device *dev,
@@ -136,6 +144,10 @@ static int beagle_twl_gpio_setup(struct
mmc[0].gpio_cd = gpio + 0;
twl4030_mmc_init(mmc);
+ /* link regulators to MMC adapters */
+ beagle_vmmc1_supply.dev = mmc[0].dev;
+ beagle_vsim_supply.dev = mmc[0].dev;
+
/* REVISIT: need ehci-omap hooks for external VBUS
* power switch and overcurrent detect
*/
@@ -173,6 +185,8 @@ static struct regulator_init_data beagle
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &beagle_vmmc1_supply,
};
/* VSIM for MMC1 pins DAT4..DAT7 (2 mA, plus card == max 50 mA) */
@@ -184,6 +198,8 @@ static struct regulator_init_data beagle
| REGULATOR_CHANGE_MODE
| REGULATOR_CHANGE_STATUS,
},
+ .num_consumer_supplies = 1,
+ .consumer_supplies = &beagle_vsim_supply,
};
/* VDAC for DSS driving S-Video (8 mA unloaded, max 65 mA) */
--
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