* [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs
@ 2018-03-27 14:19 Andrey Gusakov
2018-03-27 15:57 ` Guenter Roeck
` (2 more replies)
0 siblings, 3 replies; 9+ messages in thread
From: Andrey Gusakov @ 2018-03-27 14:19 UTC (permalink / raw)
To: jdelvare, linux, lee.jones, cphealy, andrew.smirnov
Cc: linux-hwmon, linux-kernel, Andrey Gusakov
The uid and die temperature can be read out on the ADIN7 using
input mux. Map uid and die temperature sensor to channels 16
and 17.
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
---
Changes in v3:
- comment style fixes
Changes in v2:
- suport both mc13783 and mc13892
- uid_input renamed to in16_input
- style fixes
---
drivers/hwmon/mc13783-adc.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
drivers/mfd/mc13xxx-core.c | 15 +++++++++++-
include/linux/mfd/mc13xxx.h | 2 ++
3 files changed, 76 insertions(+), 1 deletion(-)
diff --git a/drivers/hwmon/mc13783-adc.c b/drivers/hwmon/mc13783-adc.c
index 960a1db..67860ad 100644
--- a/drivers/hwmon/mc13783-adc.c
+++ b/drivers/hwmon/mc13783-adc.c
@@ -63,6 +63,10 @@ static int mc13783_adc_read(struct device *dev,
if (ret)
return ret;
+ /* ADIN7 subchannels */
+ if (channel >= 16)
+ channel = 7;
+
channel &= 0x7;
*val = (sample[channel % 4] >> (channel > 3 ? 14 : 2)) & 0x3ff;
@@ -111,6 +115,57 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
return sprintf(buf, "%u\n", val);
}
+static ssize_t mc13783_adc_read_uid(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ unsigned int val;
+ struct platform_device *pdev = to_platform_device(dev);
+ kernel_ulong_t driver_data = platform_get_device_id(pdev)->driver_data;
+ int ret = mc13783_adc_read(dev, devattr, &val);
+
+ if (ret)
+ return ret;
+
+ if (driver_data & MC13783_ADC_BPDIV2)
+ /* MC13892 have 1/2 divider, input range is [0, 4.800V] */
+ val = DIV_ROUND_CLOSEST(val * 4800, 1024);
+ else
+ /* MC13783 have 0.9 divider, input range is [0, 2.555V] */
+ val = DIV_ROUND_CLOSEST(val * 2555, 1024);
+
+ return sprintf(buf, "%u\n", val);
+}
+
+static ssize_t mc13783_adc_read_temp(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ unsigned int val;
+ struct platform_device *pdev = to_platform_device(dev);
+ kernel_ulong_t driver_data = platform_get_device_id(pdev)->driver_data;
+ int ret = mc13783_adc_read(dev, devattr, &val);
+
+ if (ret)
+ return ret;
+
+ if (driver_data & MC13783_ADC_BPDIV2) {
+ /*
+ * MC13892:
+ * Die Temperature Read Out Code at 25C 680
+ * Temperature change per LSB +0.4244C
+ */
+ ret = DIV_ROUND_CLOSEST(-2635920 + val * 4244, 10);
+ } else {
+ /*
+ * MC13783:
+ * Die Temperature Read Out Code at 25C 282
+ * Temperature change per LSB -1.14C
+ */
+ ret = 346480 - 1140 * val;
+ }
+
+ return sprintf(buf, "%d\n", ret);
+}
+
static DEVICE_ATTR_RO(name);
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, mc13783_adc_read_bp, NULL, 2);
static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, mc13783_adc_read_gp, NULL, 5);
@@ -124,6 +179,9 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, mc13783_adc_read_gp, NULL, 13);
static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, mc13783_adc_read_gp, NULL, 14);
static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, mc13783_adc_read_gp, NULL, 15);
+static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, mc13783_adc_read_uid, NULL, 16);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
+ mc13783_adc_read_temp, NULL, 17);
static struct attribute *mc13783_attr_base[] = {
&dev_attr_name.attr,
@@ -131,6 +189,8 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
&sensor_dev_attr_in5_input.dev_attr.attr,
&sensor_dev_attr_in6_input.dev_attr.attr,
&sensor_dev_attr_in7_input.dev_attr.attr,
+ &sensor_dev_attr_in16_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
NULL
};
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index d7f54e4..c63e331 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -279,8 +279,21 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2;
adc1 = MC13XXX_ADC1_ADEN | MC13XXX_ADC1_ADTRIGIGN | MC13XXX_ADC1_ASC;
- if (channel > 7)
+ /*
+ * Channels mapped through ADIN7:
+ * 7 - General purpose ADIN7
+ * 16 - UID
+ * 17 - Die temperature
+ */
+ if (channel > 7 && channel < 16) {
adc1 |= MC13XXX_ADC1_ADSEL;
+ } else if (channel == 16) {
+ adc0 |= MC13XXX_ADC0_ADIN7SEL_UID;
+ channel = 7;
+ } else if (channel == 17) {
+ adc0 |= MC13XXX_ADC0_ADIN7SEL_DIE;
+ channel = 7;
+ }
switch (mode) {
case MC13XXX_ADC_MODE_TS:
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
index 638222e..54a3cd8 100644
--- a/include/linux/mfd/mc13xxx.h
+++ b/include/linux/mfd/mc13xxx.h
@@ -243,6 +243,8 @@ struct mc13xxx_platform_data {
#define MC13XXX_ADC0_LICELLCON (1 << 0)
#define MC13XXX_ADC0_CHRGICON (1 << 1)
#define MC13XXX_ADC0_BATICON (1 << 2)
+#define MC13XXX_ADC0_ADIN7SEL_DIE (1 << 4)
+#define MC13XXX_ADC0_ADIN7SEL_UID (2 << 4)
#define MC13XXX_ADC0_ADREFEN (1 << 10)
#define MC13XXX_ADC0_TSMOD0 (1 << 12)
#define MC13XXX_ADC0_TSMOD1 (1 << 13)
--
1.9.1
^ permalink raw reply related [flat|nested] 9+ messages in thread
* Re: [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs
2018-03-27 14:19 [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs Andrey Gusakov
@ 2018-03-27 15:57 ` Guenter Roeck
2018-03-28 10:06 ` Lee Jones
2018-03-28 15:27 ` Lee Jones
2018-04-16 12:06 ` [GIT PULL] Immutable branch between MFD and HWMON due for the v4.18 merge window Lee Jones
2 siblings, 1 reply; 9+ messages in thread
From: Guenter Roeck @ 2018-03-27 15:57 UTC (permalink / raw)
To: Andrey Gusakov, jdelvare, lee.jones, cphealy, andrew.smirnov
Cc: linux-hwmon, linux-kernel
On 03/27/2018 07:19 AM, Andrey Gusakov wrote:
> The uid and die temperature can be read out on the ADIN7 using
> input mux. Map uid and die temperature sensor to channels 16
> and 17.
>
> Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
Applied to hwmon-next.
Thanks,
Guenter
> ---
> Changes in v3:
> - comment style fixes
> Changes in v2:
> - suport both mc13783 and mc13892
> - uid_input renamed to in16_input
> - style fixes
> ---
> drivers/hwmon/mc13783-adc.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
> drivers/mfd/mc13xxx-core.c | 15 +++++++++++-
> include/linux/mfd/mc13xxx.h | 2 ++
> 3 files changed, 76 insertions(+), 1 deletion(-)
>
> diff --git a/drivers/hwmon/mc13783-adc.c b/drivers/hwmon/mc13783-adc.c
> index 960a1db..67860ad 100644
> --- a/drivers/hwmon/mc13783-adc.c
> +++ b/drivers/hwmon/mc13783-adc.c
> @@ -63,6 +63,10 @@ static int mc13783_adc_read(struct device *dev,
> if (ret)
> return ret;
>
> + /* ADIN7 subchannels */
> + if (channel >= 16)
> + channel = 7;
> +
> channel &= 0x7;
>
> *val = (sample[channel % 4] >> (channel > 3 ? 14 : 2)) & 0x3ff;
> @@ -111,6 +115,57 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
> return sprintf(buf, "%u\n", val);
> }
>
> +static ssize_t mc13783_adc_read_uid(struct device *dev,
> + struct device_attribute *devattr, char *buf)
> +{
> + unsigned int val;
> + struct platform_device *pdev = to_platform_device(dev);
> + kernel_ulong_t driver_data = platform_get_device_id(pdev)->driver_data;
> + int ret = mc13783_adc_read(dev, devattr, &val);
> +
> + if (ret)
> + return ret;
> +
> + if (driver_data & MC13783_ADC_BPDIV2)
> + /* MC13892 have 1/2 divider, input range is [0, 4.800V] */
> + val = DIV_ROUND_CLOSEST(val * 4800, 1024);
> + else
> + /* MC13783 have 0.9 divider, input range is [0, 2.555V] */
> + val = DIV_ROUND_CLOSEST(val * 2555, 1024);
> +
> + return sprintf(buf, "%u\n", val);
> +}
> +
> +static ssize_t mc13783_adc_read_temp(struct device *dev,
> + struct device_attribute *devattr, char *buf)
> +{
> + unsigned int val;
> + struct platform_device *pdev = to_platform_device(dev);
> + kernel_ulong_t driver_data = platform_get_device_id(pdev)->driver_data;
> + int ret = mc13783_adc_read(dev, devattr, &val);
> +
> + if (ret)
> + return ret;
> +
> + if (driver_data & MC13783_ADC_BPDIV2) {
> + /*
> + * MC13892:
> + * Die Temperature Read Out Code at 25C 680
> + * Temperature change per LSB +0.4244C
> + */
> + ret = DIV_ROUND_CLOSEST(-2635920 + val * 4244, 10);
> + } else {
> + /*
> + * MC13783:
> + * Die Temperature Read Out Code at 25C 282
> + * Temperature change per LSB -1.14C
> + */
> + ret = 346480 - 1140 * val;
> + }
> +
> + return sprintf(buf, "%d\n", ret);
> +}
> +
> static DEVICE_ATTR_RO(name);
> static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, mc13783_adc_read_bp, NULL, 2);
> static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, mc13783_adc_read_gp, NULL, 5);
> @@ -124,6 +179,9 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
> static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, mc13783_adc_read_gp, NULL, 13);
> static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, mc13783_adc_read_gp, NULL, 14);
> static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, mc13783_adc_read_gp, NULL, 15);
> +static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, mc13783_adc_read_uid, NULL, 16);
> +static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
> + mc13783_adc_read_temp, NULL, 17);
>
> static struct attribute *mc13783_attr_base[] = {
> &dev_attr_name.attr,
> @@ -131,6 +189,8 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
> &sensor_dev_attr_in5_input.dev_attr.attr,
> &sensor_dev_attr_in6_input.dev_attr.attr,
> &sensor_dev_attr_in7_input.dev_attr.attr,
> + &sensor_dev_attr_in16_input.dev_attr.attr,
> + &sensor_dev_attr_temp1_input.dev_attr.attr,
> NULL
> };
>
> diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
> index d7f54e4..c63e331 100644
> --- a/drivers/mfd/mc13xxx-core.c
> +++ b/drivers/mfd/mc13xxx-core.c
> @@ -279,8 +279,21 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
> adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2;
> adc1 = MC13XXX_ADC1_ADEN | MC13XXX_ADC1_ADTRIGIGN | MC13XXX_ADC1_ASC;
>
> - if (channel > 7)
> + /*
> + * Channels mapped through ADIN7:
> + * 7 - General purpose ADIN7
> + * 16 - UID
> + * 17 - Die temperature
> + */
> + if (channel > 7 && channel < 16) {
> adc1 |= MC13XXX_ADC1_ADSEL;
> + } else if (channel == 16) {
> + adc0 |= MC13XXX_ADC0_ADIN7SEL_UID;
> + channel = 7;
> + } else if (channel == 17) {
> + adc0 |= MC13XXX_ADC0_ADIN7SEL_DIE;
> + channel = 7;
> + }
>
> switch (mode) {
> case MC13XXX_ADC_MODE_TS:
> diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
> index 638222e..54a3cd8 100644
> --- a/include/linux/mfd/mc13xxx.h
> +++ b/include/linux/mfd/mc13xxx.h
> @@ -243,6 +243,8 @@ struct mc13xxx_platform_data {
> #define MC13XXX_ADC0_LICELLCON (1 << 0)
> #define MC13XXX_ADC0_CHRGICON (1 << 1)
> #define MC13XXX_ADC0_BATICON (1 << 2)
> +#define MC13XXX_ADC0_ADIN7SEL_DIE (1 << 4)
> +#define MC13XXX_ADC0_ADIN7SEL_UID (2 << 4)
> #define MC13XXX_ADC0_ADREFEN (1 << 10)
> #define MC13XXX_ADC0_TSMOD0 (1 << 12)
> #define MC13XXX_ADC0_TSMOD1 (1 << 13)
>
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs
2018-03-27 15:57 ` Guenter Roeck
@ 2018-03-28 10:06 ` Lee Jones
2018-03-28 13:17 ` Guenter Roeck
0 siblings, 1 reply; 9+ messages in thread
From: Lee Jones @ 2018-03-28 10:06 UTC (permalink / raw)
To: Guenter Roeck
Cc: Andrey Gusakov, jdelvare, cphealy, andrew.smirnov, linux-hwmon,
linux-kernel
On Tue, 27 Mar 2018, Guenter Roeck wrote:
> On 03/27/2018 07:19 AM, Andrey Gusakov wrote:
> > The uid and die temperature can be read out on the ADIN7 using
> > input mux. Map uid and die temperature sensor to channels 16
> > and 17.
> >
> > Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
>
> Applied to hwmon-next.
You've applied changes to a subsystem without an appropriate
Maintainer Ack?
> > ---
> > Changes in v3:
> > - comment style fixes
> > Changes in v2:
> > - suport both mc13783 and mc13892
> > - uid_input renamed to in16_input
> > - style fixes
> > ---
> > drivers/hwmon/mc13783-adc.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
> > drivers/mfd/mc13xxx-core.c | 15 +++++++++++-
> > include/linux/mfd/mc13xxx.h | 2 ++
> > 3 files changed, 76 insertions(+), 1 deletion(-)
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs
2018-03-28 10:06 ` Lee Jones
@ 2018-03-28 13:17 ` Guenter Roeck
2018-03-28 15:28 ` Lee Jones
0 siblings, 1 reply; 9+ messages in thread
From: Guenter Roeck @ 2018-03-28 13:17 UTC (permalink / raw)
To: Lee Jones
Cc: Andrey Gusakov, jdelvare, cphealy, andrew.smirnov, linux-hwmon,
linux-kernel
On 03/28/2018 03:06 AM, Lee Jones wrote:
> On Tue, 27 Mar 2018, Guenter Roeck wrote:
>
>> On 03/27/2018 07:19 AM, Andrey Gusakov wrote:
>>> The uid and die temperature can be read out on the ADIN7 using
>>> input mux. Map uid and die temperature sensor to channels 16
>>> and 17.
>>>
>>> Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
>>
>> Applied to hwmon-next.
>
> You've applied changes to a subsystem without an appropriate
> Maintainer Ack?
>
Me blind. I didn't realize that part of it was in mfd. Now dropped, and sorry.
Guenter
>>> ---
>>> Changes in v3:
>>> - comment style fixes
>>> Changes in v2:
>>> - suport both mc13783 and mc13892
>>> - uid_input renamed to in16_input
>>> - style fixes
>>> ---
>>> drivers/hwmon/mc13783-adc.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
>>> drivers/mfd/mc13xxx-core.c | 15 +++++++++++-
>>> include/linux/mfd/mc13xxx.h | 2 ++
>>> 3 files changed, 76 insertions(+), 1 deletion(-)
>
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs
2018-03-27 14:19 [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs Andrey Gusakov
2018-03-27 15:57 ` Guenter Roeck
@ 2018-03-28 15:27 ` Lee Jones
2018-04-16 12:06 ` [GIT PULL] Immutable branch between MFD and HWMON due for the v4.18 merge window Lee Jones
2 siblings, 0 replies; 9+ messages in thread
From: Lee Jones @ 2018-03-28 15:27 UTC (permalink / raw)
To: Andrey Gusakov
Cc: jdelvare, linux, cphealy, andrew.smirnov, linux-hwmon, linux-kernel
On Tue, 27 Mar 2018, Andrey Gusakov wrote:
> The uid and die temperature can be read out on the ADIN7 using
> input mux. Map uid and die temperature sensor to channels 16
> and 17.
>
> Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
> ---
> Changes in v3:
> - comment style fixes
> Changes in v2:
> - suport both mc13783 and mc13892
> - uid_input renamed to in16_input
> - style fixes
> ---
> drivers/hwmon/mc13783-adc.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
> drivers/mfd/mc13xxx-core.c | 15 +++++++++++-
> include/linux/mfd/mc13xxx.h | 2 ++
For my own reference:
Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org>
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs
2018-03-28 13:17 ` Guenter Roeck
@ 2018-03-28 15:28 ` Lee Jones
2018-03-28 16:03 ` Guenter Roeck
0 siblings, 1 reply; 9+ messages in thread
From: Lee Jones @ 2018-03-28 15:28 UTC (permalink / raw)
To: Guenter Roeck
Cc: Andrey Gusakov, jdelvare, cphealy, andrew.smirnov, linux-hwmon,
linux-kernel
On Wed, 28 Mar 2018, Guenter Roeck wrote:
> On 03/28/2018 03:06 AM, Lee Jones wrote:
> > On Tue, 27 Mar 2018, Guenter Roeck wrote:
> >
> > > On 03/27/2018 07:19 AM, Andrey Gusakov wrote:
> > > > The uid and die temperature can be read out on the ADIN7 using
> > > > input mux. Map uid and die temperature sensor to channels 16
> > > > and 17.
> > > >
> > > > Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
> > >
> > > Applied to hwmon-next.
> >
> > You've applied changes to a subsystem without an appropriate
> > Maintainer Ack?
> >
>
> Me blind. I didn't realize that part of it was in mfd. Now dropped, and sorry.
Patch looks okay.
Do you want me to apply it and send you a PR or vise versa?
--
Lee Jones [李琼斯]
Linaro Services Technical Lead
Linaro.org │ Open source software for ARM SoCs
Follow Linaro: Facebook | Twitter | Blog
^ permalink raw reply [flat|nested] 9+ messages in thread
* Re: [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs
2018-03-28 15:28 ` Lee Jones
@ 2018-03-28 16:03 ` Guenter Roeck
0 siblings, 0 replies; 9+ messages in thread
From: Guenter Roeck @ 2018-03-28 16:03 UTC (permalink / raw)
To: Lee Jones
Cc: Andrey Gusakov, jdelvare, cphealy, andrew.smirnov, linux-hwmon,
linux-kernel
On Wed, Mar 28, 2018 at 04:28:30PM +0100, Lee Jones wrote:
> On Wed, 28 Mar 2018, Guenter Roeck wrote:
>
> > On 03/28/2018 03:06 AM, Lee Jones wrote:
> > > On Tue, 27 Mar 2018, Guenter Roeck wrote:
> > >
> > > > On 03/27/2018 07:19 AM, Andrey Gusakov wrote:
> > > > > The uid and die temperature can be read out on the ADIN7 using
> > > > > input mux. Map uid and die temperature sensor to channels 16
> > > > > and 17.
> > > > >
> > > > > Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
> > > >
> > > > Applied to hwmon-next.
> > >
> > > You've applied changes to a subsystem without an appropriate
> > > Maintainer Ack?
> > >
> >
> > Me blind. I didn't realize that part of it was in mfd. Now dropped, and sorry.
>
> Patch looks okay.
>
> Do you want me to apply it and send you a PR or vise versa?
>
Please go ahead and apply it on your side.
For the record:
Acked-by: Guenter Roeck <linux@roeck-us.net>
Thanks,
Guenter
> --
> Lee Jones [李琼斯]
> Linaro Services Technical Lead
> Linaro.org │ Open source software for ARM SoCs
> Follow Linaro: Facebook | Twitter | Blog
> --
> To unsubscribe from this list: send the line "unsubscribe linux-hwmon" in
> the body of a message to majordomo@vger.kernel.org
> More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 9+ messages in thread
* [GIT PULL] Immutable branch between MFD and HWMON due for the v4.18 merge window
2018-03-27 14:19 [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs Andrey Gusakov
2018-03-27 15:57 ` Guenter Roeck
2018-03-28 15:27 ` Lee Jones
@ 2018-04-16 12:06 ` Lee Jones
2 siblings, 0 replies; 9+ messages in thread
From: Lee Jones @ 2018-04-16 12:06 UTC (permalink / raw)
To: Andrey Gusakov
Cc: jdelvare, linux, cphealy, andrew.smirnov, linux-hwmon, linux-kernel
Sorry for the delay. Things are pretty hectic at the moment.
The following changes since commit 60cc43fc888428bb2f18f08997432d426a243338:
Linux 4.17-rc1 (2018-04-15 18:24:20 -0700)
are available in the git repository at:
git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd.git ib-mfd-hwmon-v4.18
for you to fetch changes up to ed645cccc0ebc0329916b6df039dd792d9105c9d:
hwmon: MC13783: Add uid and die temperature sensor inputs (2018-04-16 13:01:36 +0100)
----------------------------------------------------------------
Immutable branch between MFD and HWMON due for the v4.18 merge window
----------------------------------------------------------------
Andrey Gusakov (1):
hwmon: MC13783: Add uid and die temperature sensor inputs
drivers/hwmon/mc13783-adc.c | 60 +++++++++++++++++++++++++++++++++++++++++++++
drivers/mfd/mc13xxx-core.c | 15 +++++++++++-
include/linux/mfd/mc13xxx.h | 2 ++
3 files changed, 76 insertions(+), 1 deletion(-)
--
Lee Jones [李琼斯]
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^ permalink raw reply [flat|nested] 9+ messages in thread
* [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs
@ 2018-03-21 16:39 Andrey Gusakov
0 siblings, 0 replies; 9+ messages in thread
From: Andrey Gusakov @ 2018-03-21 16:39 UTC (permalink / raw)
To: jdelvare, linux, lee.jones, cphealy, andrew.smirnov
Cc: linux-hwmon, linux-kernel, Andrey Gusakov
The uid and die temperature can be read out on the ADIN7 using
input mux. Map uid and die temperature sensor to channels 16
and 17.
Signed-off-by: Andrey Gusakov <andrey.gusakov@cogentembedded.com>
---
Changes in v3:
- comment style fixes
Changes in v2:
- suport both mc13783 and mc13892
- uid_input renamed to in16_input
- style fixes
---
drivers/hwmon/mc13783-adc.c | 59 +++++++++++++++++++++++++++++++++++++++++++++
drivers/mfd/mc13xxx-core.c | 15 +++++++++++-
include/linux/mfd/mc13xxx.h | 2 ++
3 files changed, 75 insertions(+), 1 deletion(-)
diff --git a/drivers/hwmon/mc13783-adc.c b/drivers/hwmon/mc13783-adc.c
index 960a1db..840d8fc 100644
--- a/drivers/hwmon/mc13783-adc.c
+++ b/drivers/hwmon/mc13783-adc.c
@@ -63,6 +63,10 @@ static int mc13783_adc_read(struct device *dev,
if (ret)
return ret;
+ /* ADIN7 subchannels */
+ if (channel >= 16)
+ channel = 7;
+
channel &= 0x7;
*val = (sample[channel % 4] >> (channel > 3 ? 14 : 2)) & 0x3ff;
@@ -111,6 +115,56 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
return sprintf(buf, "%u\n", val);
}
+static ssize_t mc13783_adc_read_uid(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ unsigned int val;
+ struct platform_device *pdev = to_platform_device(dev);
+ kernel_ulong_t driver_data = platform_get_device_id(pdev)->driver_data;
+ int ret = mc13783_adc_read(dev, devattr, &val);
+
+ if (ret)
+ return ret;
+
+ if (driver_data & MC13783_ADC_BPDIV2)
+ /* MC13892 have 1/2 divider, input range is [0, 4.800V] */
+ val = DIV_ROUND_CLOSEST(val * 4800, 1024);
+ else
+ /* MC13783 have 0.9 divider, input range is [0, 2.555V] */
+ val = DIV_ROUND_CLOSEST(val * 2555, 1024);
+
+ return sprintf(buf, "%u\n", val);
+}
+
+static ssize_t mc13783_adc_read_temp(struct device *dev,
+ struct device_attribute *devattr, char *buf)
+{
+ unsigned int val;
+ struct platform_device *pdev = to_platform_device(dev);
+ kernel_ulong_t driver_data = platform_get_device_id(pdev)->driver_data;
+ int ret = mc13783_adc_read(dev, devattr, &val);
+
+ if (ret)
+ return ret;
+
+ if (driver_data & MC13783_ADC_BPDIV2) {
+ /*
+ * MC13892:
+ * Die Temperature Read Out Code at 25C 680
+ * Temperature change per LSB +0.4244C
+ */
+ ret = DIV_ROUND_CLOSEST(-2635920 + val * 4244, 10);
+ } else {
+ /* MC13783:
+ * Die Temperature Read Out Code at 25C 282
+ * Temperature change per LSB -1.14C
+ */
+ ret = 346480 - 1140 * val;
+ }
+
+ return sprintf(buf, "%d\n", ret);
+}
+
static DEVICE_ATTR_RO(name);
static SENSOR_DEVICE_ATTR(in2_input, S_IRUGO, mc13783_adc_read_bp, NULL, 2);
static SENSOR_DEVICE_ATTR(in5_input, S_IRUGO, mc13783_adc_read_gp, NULL, 5);
@@ -124,6 +178,9 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
static SENSOR_DEVICE_ATTR(in13_input, S_IRUGO, mc13783_adc_read_gp, NULL, 13);
static SENSOR_DEVICE_ATTR(in14_input, S_IRUGO, mc13783_adc_read_gp, NULL, 14);
static SENSOR_DEVICE_ATTR(in15_input, S_IRUGO, mc13783_adc_read_gp, NULL, 15);
+static SENSOR_DEVICE_ATTR(in16_input, S_IRUGO, mc13783_adc_read_uid, NULL, 16);
+static SENSOR_DEVICE_ATTR(temp1_input, S_IRUGO,
+ mc13783_adc_read_temp, NULL, 17);
static struct attribute *mc13783_attr_base[] = {
&dev_attr_name.attr,
@@ -131,6 +188,8 @@ static ssize_t mc13783_adc_read_gp(struct device *dev,
&sensor_dev_attr_in5_input.dev_attr.attr,
&sensor_dev_attr_in6_input.dev_attr.attr,
&sensor_dev_attr_in7_input.dev_attr.attr,
+ &sensor_dev_attr_in16_input.dev_attr.attr,
+ &sensor_dev_attr_temp1_input.dev_attr.attr,
NULL
};
diff --git a/drivers/mfd/mc13xxx-core.c b/drivers/mfd/mc13xxx-core.c
index d7f54e4..c63e331 100644
--- a/drivers/mfd/mc13xxx-core.c
+++ b/drivers/mfd/mc13xxx-core.c
@@ -279,8 +279,21 @@ int mc13xxx_adc_do_conversion(struct mc13xxx *mc13xxx, unsigned int mode,
adc0 = MC13XXX_ADC0_ADINC1 | MC13XXX_ADC0_ADINC2;
adc1 = MC13XXX_ADC1_ADEN | MC13XXX_ADC1_ADTRIGIGN | MC13XXX_ADC1_ASC;
- if (channel > 7)
+ /*
+ * Channels mapped through ADIN7:
+ * 7 - General purpose ADIN7
+ * 16 - UID
+ * 17 - Die temperature
+ */
+ if (channel > 7 && channel < 16) {
adc1 |= MC13XXX_ADC1_ADSEL;
+ } else if (channel == 16) {
+ adc0 |= MC13XXX_ADC0_ADIN7SEL_UID;
+ channel = 7;
+ } else if (channel == 17) {
+ adc0 |= MC13XXX_ADC0_ADIN7SEL_DIE;
+ channel = 7;
+ }
switch (mode) {
case MC13XXX_ADC_MODE_TS:
diff --git a/include/linux/mfd/mc13xxx.h b/include/linux/mfd/mc13xxx.h
index 638222e..54a3cd8 100644
--- a/include/linux/mfd/mc13xxx.h
+++ b/include/linux/mfd/mc13xxx.h
@@ -243,6 +243,8 @@ struct mc13xxx_platform_data {
#define MC13XXX_ADC0_LICELLCON (1 << 0)
#define MC13XXX_ADC0_CHRGICON (1 << 1)
#define MC13XXX_ADC0_BATICON (1 << 2)
+#define MC13XXX_ADC0_ADIN7SEL_DIE (1 << 4)
+#define MC13XXX_ADC0_ADIN7SEL_UID (2 << 4)
#define MC13XXX_ADC0_ADREFEN (1 << 10)
#define MC13XXX_ADC0_TSMOD0 (1 << 12)
#define MC13XXX_ADC0_TSMOD1 (1 << 13)
--
1.9.1
^ permalink raw reply related [flat|nested] 9+ messages in thread
end of thread, other threads:[~2018-04-16 12:06 UTC | newest]
Thread overview: 9+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2018-03-27 14:19 [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs Andrey Gusakov
2018-03-27 15:57 ` Guenter Roeck
2018-03-28 10:06 ` Lee Jones
2018-03-28 13:17 ` Guenter Roeck
2018-03-28 15:28 ` Lee Jones
2018-03-28 16:03 ` Guenter Roeck
2018-03-28 15:27 ` Lee Jones
2018-04-16 12:06 ` [GIT PULL] Immutable branch between MFD and HWMON due for the v4.18 merge window Lee Jones
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2018-03-21 16:39 [PATCH v3] hwmon: MC13783: add uid and die temperature sensor inputs Andrey Gusakov
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