From: Max Staudt <max@enpas.org>
To: linux-i2c@vger.kernel.org, linux-hwmon@vger.kernel.org,
Wolfram Sang <wsa+renesas@sang-engineering.com>,
Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>
Cc: linux-m68k@vger.kernel.org, linux-kernel@vger.kernel.org,
glaubitz@physik.fu-berlin.de, Max Staudt <max@enpas.org>
Subject: [PATCH v2 3/4] hwmon/ltc2990: Add platform_data support
Date: Tue, 13 Aug 2019 01:52:36 +0200 [thread overview]
Message-ID: <20190812235237.21797-3-max@enpas.org> (raw)
In-Reply-To: <20190812235237.21797-1-max@enpas.org>
This allows code using i2c_new_device() to specify a measurement mode.
Signed-off-by: Max Staudt <max@enpas.org>
---
drivers/hwmon/ltc2990.c | 9 +++++++++
include/linux/platform_data/ltc2990.h | 11 +++++++++++
2 files changed, 20 insertions(+)
create mode 100644 include/linux/platform_data/ltc2990.h
diff --git a/drivers/hwmon/ltc2990.c b/drivers/hwmon/ltc2990.c
index f9431ad43..f19b9c50c 100644
--- a/drivers/hwmon/ltc2990.c
+++ b/drivers/hwmon/ltc2990.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/of.h>
+#include <linux/platform_data/ltc2990.h>
#define LTC2990_STATUS 0x00
#define LTC2990_CONTROL 0x01
@@ -206,6 +207,7 @@ static int ltc2990_i2c_probe(struct i2c_client *i2c,
int ret;
struct device *hwmon_dev;
struct ltc2990_data *data;
+ struct ltc2990_platform_data *pdata = dev_get_platdata(&i2c->dev);
struct device_node *of_node = i2c->dev.of_node;
if (!i2c_check_functionality(i2c->adapter, I2C_FUNC_SMBUS_BYTE_DATA |
@@ -227,6 +229,13 @@ static int ltc2990_i2c_probe(struct i2c_client *i2c,
if (data->mode[0] & ~LTC2990_MODE0_MASK ||
data->mode[1] & ~LTC2990_MODE1_MASK)
return -EINVAL;
+ } else if (pdata) {
+ data->mode[0] = pdata->meas_mode[0];
+ data->mode[1] = pdata->meas_mode[1];
+
+ if (data->mode[0] & ~LTC2990_MODE0_MASK ||
+ data->mode[1] & ~LTC2990_MODE1_MASK)
+ return -EINVAL;
} else {
ret = i2c_smbus_read_byte_data(i2c, LTC2990_CONTROL);
if (ret < 0)
diff --git a/include/linux/platform_data/ltc2990.h b/include/linux/platform_data/ltc2990.h
new file mode 100644
index 000000000..7ec89e784
--- /dev/null
+++ b/include/linux/platform_data/ltc2990.h
@@ -0,0 +1,11 @@
+/* SPDX-License-Identifier: GPL-2.0-only */
+#ifndef LTC2990_PDATA_H
+#define LTC2990_PDATA_H
+
+#include <linux/types.h>
+
+struct ltc2990_platform_data {
+ u8 meas_mode[2];
+};
+
+#endif /* LTC2990_PDATA_H */
--
2.11.0
next prev parent reply other threads:[~2019-08-12 23:53 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-08-12 23:52 [PATCH v2 1/4] i2c/busses: Add i2c-icy for I2C on m68k/Amiga Max Staudt
2019-08-12 23:52 ` [PATCH v2 2/4] i2c/busses/i2c-icy: Add LTC2990 present on 2019 board revision Max Staudt
2019-08-13 7:03 ` Geert Uytterhoeven
2019-08-13 9:49 ` Max Staudt
2019-08-14 19:52 ` Wolfram Sang
2019-08-12 23:52 ` Max Staudt [this message]
2019-08-13 6:59 ` [PATCH v2 3/4] hwmon/ltc2990: Add platform_data support Geert Uytterhoeven
2019-08-13 8:02 ` Guenter Roeck
2019-08-13 8:27 ` Geert Uytterhoeven
2019-08-13 13:27 ` Guenter Roeck
2019-08-13 13:32 ` Geert Uytterhoeven
2019-08-13 10:10 ` Max Staudt
2019-08-13 13:24 ` Guenter Roeck
2019-08-13 13:31 ` Max
2019-08-14 18:11 ` Max Staudt
2019-08-12 23:52 ` [PATCH v2 4/4] i2c/busses/i2c-icy: Add platform_data for LTC2990 Max Staudt
2019-08-13 7:04 ` Geert Uytterhoeven
2019-08-13 7:08 ` [PATCH v2 1/4] i2c/busses: Add i2c-icy for I2C on m68k/Amiga Geert Uytterhoeven
2019-08-13 9:50 ` Max Staudt
2019-08-14 19:47 ` Wolfram Sang
2019-08-14 22:33 ` Max Staudt
2019-08-15 7:12 ` Wolfram Sang
2019-08-15 10:00 ` Max Staudt
2019-08-15 11:48 ` Wolfram Sang
2019-08-15 11:52 ` Max
2019-08-15 12:04 ` Wolfram Sang
2019-08-15 12:10 ` Max Staudt
2019-08-15 12:52 ` Wolfram Sang
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