[U-Boot] board: ti: dra71x-evm: Hook LDO1 of LP8733 to EN_PIN

Message ID 1507783725-5557-1-git-send-email-j-keerthy@ti.com
State New
Delegated to: Tom Rini
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Series
  • [U-Boot] board: ti: dra71x-evm: Hook LDO1 of LP8733 to EN_PIN
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Commit Message

Keerthy Oct. 12, 2017, 4:48 a.m.
All regulators are hooked to EN_Pin at reset so that EN Pin controls
their state. Hook the LDO1 regulator to EN pin which at reset is not
hooked. This applies only to LP8733.

Signed-off-by: Keerthy <j-keerthy@ti.com>
---
 board/ti/dra7xx/evm.c | 7 +++++++
 1 file changed, 7 insertions(+)

Comments

Tom Rini Oct. 12, 2017, 10:29 p.m. | #1
On Thu, Oct 12, 2017 at 10:18:45AM +0530, Keerthy wrote:

> All regulators are hooked to EN_Pin at reset so that EN Pin controls
> their state. Hook the LDO1 regulator to EN pin which at reset is not
> hooked. This applies only to LP8733.
> 
> Signed-off-by: Keerthy <j-keerthy@ti.com>

Reviewed-by: Tom Rini <trini@konsulko.com>

Patch

diff --git a/board/ti/dra7xx/evm.c b/board/ti/dra7xx/evm.c
index 25ffdfb..441f14f 100644
--- a/board/ti/dra7xx/evm.c
+++ b/board/ti/dra7xx/evm.c
@@ -682,6 +682,13 @@  int board_late_init(void)
 
 	omap_die_id_serial();
 	omap_set_fastboot_vars();
+
+	/*
+	 * Hook the LDO1 regulator to EN pin. This applies only to LP8733
+	 * Rest all regulators are hooked to EN Pin at reset.
+	 */
+	if (board_is_dra71x_evm())
+		palmas_i2c_write_u8(LP873X_I2C_SLAVE_ADDR, 0x9, 0x7);
 #endif
 	return 0;
 }