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authorTony Lindgren <Nayak>2011-02-24 15:56:42 +0300
committerTony Lindgren <tony@atomide.com>2011-03-03 03:45:50 +0300
commitf463effebefb26f1dffb92d10725e938f4497bef (patch)
treec797da8b8c2843eef18174ae116027b2e9a16b69 /arch/arm/mach-omap2/board-ldp.c
parente41cccfe794d188b0ae7f17f01692bcbc0e0dc87 (diff)
downloadlinux-f463effebefb26f1dffb92d10725e938f4497bef.tar.xz
ldp: Fix regulator mapping for ads7846 TS controller
On the OMAP3430LDP board, the ads7846 touchscreen controller is powered by VAUX1 regulator (supplying 3.0v). Fix this mapping in the board file, and hence prevent the ads7846 driver init to fail with the below error.. ads7846 spi1.0: unable to get regulator: -19 Signed-off-by: Rajendra Nayak <rnayak@ti.com> Signed-off-by: Tony Lindgren <tony@atomide.com>
Diffstat (limited to 'arch/arm/mach-omap2/board-ldp.c')
-rw-r--r--arch/arm/mach-omap2/board-ldp.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/arm/mach-omap2/board-ldp.c b/arch/arm/mach-omap2/board-ldp.c
index a69e59455eed..e2ba77957a8c 100644
--- a/arch/arm/mach-omap2/board-ldp.c
+++ b/arch/arm/mach-omap2/board-ldp.c
@@ -327,6 +327,26 @@ static struct regulator_init_data ldp_vmmc1 = {
.consumer_supplies = &ldp_vmmc1_supply,
};
+/* ads7846 on SPI */
+static struct regulator_consumer_supply ldp_vaux1_supplies[] = {
+ REGULATOR_SUPPLY("vcc", "spi1.0"),
+};
+
+/* VAUX1 */
+static struct regulator_init_data ldp_vaux1 = {
+ .constraints = {
+ .min_uV = 3000000,
+ .max_uV = 3000000,
+ .apply_uV = true,
+ .valid_modes_mask = REGULATOR_MODE_NORMAL
+ | REGULATOR_MODE_STANDBY,
+ .valid_ops_mask = REGULATOR_CHANGE_MODE
+ | REGULATOR_CHANGE_STATUS,
+ },
+ .num_consumer_supplies = ARRAY_SIZE(ldp_vaux1_supplies),
+ .consumer_supplies = ldp_vaux1_supplies,
+};
+
static struct twl4030_platform_data ldp_twldata = {
.irq_base = TWL4030_IRQ_BASE,
.irq_end = TWL4030_IRQ_END,
@@ -335,6 +355,7 @@ static struct twl4030_platform_data ldp_twldata = {
.madc = &ldp_madc_data,
.usb = &ldp_usb_data,
.vmmc1 = &ldp_vmmc1,
+ .vaux1 = &ldp_vaux1,
.gpio = &ldp_gpio_data,
.keypad = &ldp_kp_twl4030_data,
};