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ldp: Fix regulator mapping for ads7846 TS controller

PATCH New Rajendra Nayak 2 participants 2 messages Feb 24, 2011 – Mar 3, 2011

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PATCH 1/1 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

---
 arch/arm/mach-omap2/board-ldp.c |   21 +++++++++++++++++++++
 1 files changed, 21 insertions(+), 0 deletions(-)
arch/arm/mach-omap2/board-ldp.c +21 -0
index a3fae56..9a99cad 100644
@@ -329,6 +329,26 @@ 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,
@@ -337,6 +357,7 @@ 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,
 };
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#1 lore raw

PATCH 1/1 ldp: Fix regulator mapping for ads7846 TS controller

Quoted 6 lines · Rajendra Nayak

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

Applying for the merge window.

Tony