mirror of
https://github.com/brain-hackers/u-boot-brain
synced 2024-08-20 17:08:52 +09:00
![Simon Glass](/assets/img/avatar_default.png)
Move this uncommon header out of the common header. Signed-off-by: Simon Glass <sjg@chromium.org>
71 lines
1.4 KiB
C
71 lines
1.4 KiB
C
// SPDX-License-Identifier: GPL-2.0+
|
|
/*
|
|
* PMIC Error Signal Monitor driver
|
|
*
|
|
* Copyright (C) 2019 Texas Instruments Incorporated - http://www.ti.com/
|
|
* Tero Kristo <t-kristo@ti.com>
|
|
*
|
|
*/
|
|
|
|
#include <common.h>
|
|
#include <dm.h>
|
|
#include <errno.h>
|
|
#include <power/pmic.h>
|
|
#include <dm/device_compat.h>
|
|
#include <linux/bitops.h>
|
|
|
|
#define INT_ESM_REG 0x6c
|
|
#define INT_ESM_MASK 0x3f
|
|
|
|
#define ESM_MCU_START_REG 0x8f
|
|
|
|
#define ESM_MCU_START BIT(0)
|
|
|
|
#define ESM_MCU_MODE_CFG_REG 0x92
|
|
|
|
#define ESM_MCU_EN BIT(6)
|
|
#define ESM_MCU_ENDRV BIT(5)
|
|
|
|
/**
|
|
* pmic_esm_probe: configures and enables PMIC ESM functionality
|
|
*
|
|
* Configures ESM PMIC support and enables it.
|
|
*/
|
|
static int pmic_esm_probe(struct udevice *dev)
|
|
{
|
|
int ret;
|
|
|
|
ret = pmic_reg_write(dev->parent, INT_ESM_REG, INT_ESM_MASK);
|
|
if (ret) {
|
|
dev_err(dev, "clearing ESM irqs failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = pmic_reg_write(dev->parent, ESM_MCU_MODE_CFG_REG,
|
|
ESM_MCU_EN | ESM_MCU_ENDRV);
|
|
if (ret) {
|
|
dev_err(dev, "setting ESM mode failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
ret = pmic_reg_write(dev->parent, ESM_MCU_START_REG, ESM_MCU_START);
|
|
if (ret) {
|
|
dev_err(dev, "starting ESM failed: %d\n", ret);
|
|
return ret;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static const struct udevice_id pmic_esm_ids[] = {
|
|
{ .compatible = "ti,tps659413-esm" },
|
|
{}
|
|
};
|
|
|
|
U_BOOT_DRIVER(pmic_esm) = {
|
|
.name = "esm_pmic",
|
|
.of_match = pmic_esm_ids,
|
|
.id = UCLASS_MISC,
|
|
.probe = pmic_esm_probe,
|
|
};
|