From: Sascha Hauer <s.hauer@pengutronix.de>
To: Barebox List <barebox@lists.infradead.org>
Cc: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Subject: [PATCH 6/9] mfd: da9063: read out and report device id
Date: Thu, 12 Apr 2018 09:22:28 +0200 [thread overview]
Message-ID: <20180412072231.31207-7-s.hauer@pengutronix.de> (raw)
In-Reply-To: <20180412072231.31207-1-s.hauer@pengutronix.de>
From: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
just some kind of debugging atm...
Signed-off-by: Enrico Scholz <enrico.scholz@sigma-chemnitz.de>
Tested-by: Stefan Christ <s.christ@phytec.de>
Signed-off-by: Christian Hemp <c.hemp@phytec.de>
---
drivers/mfd/da9063.c | 13 +++++++++++++
1 file changed, 13 insertions(+)
diff --git a/drivers/mfd/da9063.c b/drivers/mfd/da9063.c
index 00a61279f3..0c27bf495f 100644
--- a/drivers/mfd/da9063.c
+++ b/drivers/mfd/da9063.c
@@ -45,6 +45,8 @@ struct da9063 {
/* bank1: control register I */
#define DA9063_REG1_CONFIG_I 0x10e
+#define DA9062AA_DEVICE_ID 0x181
+
/* DA9063_REG_FAULT_LOG (addr=0x05) */
#define DA9063_TWD_ERROR 0x01
#define DA9063_POR 0x02
@@ -196,6 +198,7 @@ static void da9063_restart(struct restart_handler *rst)
static int da9062_device_init(struct da9063 *priv)
{
int ret;
+ uint8_t id[4];
priv->client1 = i2c_new_dummy(priv->client->adapter,
priv->client->addr + 1);
@@ -206,6 +209,16 @@ static int da9062_device_init(struct da9063 *priv)
return -EINVAL;
}
+ ret = i2c_read_reg(priv->client1, DA9062AA_DEVICE_ID & 0xffu,
+ id, sizeof id);
+ if (ret < 0) {
+ dev_warn(priv->dev, "failed to read ID: %d\n", ret);
+ return ret;
+ }
+
+ dev_info(priv->dev, "da9062 with id %02x.%02x.%02x.%02x detected\n",
+ id[0], id[1], id[2], id[3]);
+
/* clear CONFIG_I[WATCHDOG_SD] */
ret = da906x_reg_update(priv, DA9063_REG1_CONFIG_I,
DA9062_WATCHDOG_SD, DA9062_WATCHDOG_SD);
--
2.16.1
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next prev parent reply other threads:[~2018-04-12 7:22 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-12 7:22 [PATCH 0/9] Dialog da9063 updates Sascha Hauer
2018-04-12 7:22 ` [PATCH 1/9] mfd: da9063: reset watchdog timer Sascha Hauer
2018-04-12 7:22 ` [PATCH 2/9] mfd: da9063: added generic reg_update() function Sascha Hauer
2018-04-12 7:22 ` [PATCH 3/9] mfd: da9063: use da906x_reg_update() Sascha Hauer
2018-04-12 7:22 ` [PATCH 4/9] mfd: da9063: add device specific init function Sascha Hauer
2018-04-12 7:22 ` [PATCH 5/9] mfd: da9063: added of_device_id information Sascha Hauer
2018-04-12 7:22 ` Sascha Hauer [this message]
2018-04-12 7:22 ` [PATCH 7/9] mfd: da9063: update Kconfig for DA9062 Sascha Hauer
2018-04-12 7:22 ` [PATCH 8/9] ARM: i.MX: phycore-som: added and enabled DA9062 PMIC Sascha Hauer
2018-04-12 7:22 ` [PATCH 9/9] ARM: i.MX: pfla02: set priority of da9063 watchdog Sascha Hauer
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