From: Jeremy Gebben <jgebben@sweptlaser.com>
To: Jean Delvare <jdelvare@suse.com>,
Guenter Roeck <linux@roeck-us.net>,
Jonathan Corbet <corbet@lwn.net>,
linux-hwmon@vger.kernel.org, linux-doc@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH v2 3/3] hwmon: (lm85) add support for LM96000 high frequencies
Date: Thu, 31 Jan 2019 15:06:17 -0700 [thread overview]
Message-ID: <20190131220617.15223-4-jgebben@sweptlaser.com> (raw)
In-Reply-To: <20190131220617.15223-1-jgebben@sweptlaser.com>
This chip expands the freqency field from 3 to 4 bits, to
add more frequencies in the 22.5 to 30 kHz ranges.
Signed-off-by: Jeremy Gebben <jgebben@sweptlaser.com>
---
Documentation/hwmon/lm85 | 3 +++
drivers/hwmon/lm85.c | 9 +++++++++
2 files changed, 12 insertions(+)
diff --git a/Documentation/hwmon/lm85 b/Documentation/hwmon/lm85
index 9f3a945d1..264874f09 100644
--- a/Documentation/hwmon/lm85
+++ b/Documentation/hwmon/lm85
@@ -140,6 +140,9 @@ of voltage and temperature channels.
SMSC EMC6D103S is similar to EMC6D103, but does not support pwm#_auto_pwm_minctl
and temp#_auto_temp_off.
+The LM96000 supports additional high frequency PWM modes (22.5 kHz, 24 kHz,
+25.7 kHz, 27.7 kHz and 30 kHz), which can be configured on a per-PWM basis.
+
Hardware Configurations
-----------------------
diff --git a/drivers/hwmon/lm85.c b/drivers/hwmon/lm85.c
index 4b15193d1..88f08f4bc 100644
--- a/drivers/hwmon/lm85.c
+++ b/drivers/hwmon/lm85.c
@@ -202,6 +202,11 @@ static const int lm85_freq_map[] = { /* 1 Hz */
10, 15, 23, 30, 38, 47, 61, 94
};
+static const int lm85_high_freq_map[] = { /* 1 Hz */
+ 10, 15, 23, 30, 38, 47, 61, 94,
+ 22500, 24000, 25700, 25700, 27700, 27700, 30000, 30000
+};
+
static const int adm1027_freq_map[] = { /* 1 Hz */
11, 15, 22, 29, 35, 44, 59, 88
};
@@ -1574,6 +1579,10 @@ static int lm85_probe(struct i2c_client *client, const struct i2c_device_id *id)
data->freq_map = adm1027_freq_map;
data->freq_map_size = ARRAY_SIZE(adm1027_freq_map);
break;
+ case lm85:
+ data->freq_map = lm85_high_freq_map;
+ data->freq_map_size = ARRAY_SIZE(lm85_high_freq_map);
+ break;
default:
data->freq_map = lm85_freq_map;
data->freq_map_size = ARRAY_SIZE(lm85_freq_map);
--
2.17.1
next prev parent reply other threads:[~2019-01-31 22:07 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-01-31 22:06 [PATCH v2 0/3] hwmon: (lm85) add LM96000 high freqency pwm support Jeremy Gebben
2019-01-31 22:06 ` [PATCH v2 1/3] hwmon: (lm85) remove freq_map size hardcodes Jeremy Gebben
2019-01-31 22:06 ` [PATCH v2 2/3] hwmon: (lm85) Document the LM96000 as supported Jeremy Gebben
2019-01-31 22:06 ` Jeremy Gebben [this message]
2019-02-01 22:37 ` [PATCH v2 3/3] hwmon: (lm85) add support for LM96000 high frequencies Guenter Roeck
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