* [PATCH v5] hwmon: Add driver for the TEXAS TPS546D24 Buck Converter.
@ 2022-09-12 3:01 Duke Du
2022-09-20 14:14 ` Guenter Roeck
0 siblings, 1 reply; 2+ messages in thread
From: Duke Du @ 2022-09-12 3:01 UTC (permalink / raw)
To: jdelvare, linux, corbet, linux-hwmon, linux-doc, linux-kernel
Cc: fran.hsu, george.hung, charles.hsu, duke.du
From: Duke Du <dukedu83@gmail.com>
Add the pmbus driver for TEXAS tps546d24 Buck Converter.
The vout mode of tps546d24 supported relative data format,
which is not supported by the PMBus core.
Signed-off-by: Duke Du <dukedu83@gmail.com>
---
Change in v1:
Initial patchset.
Change in v2:
Correct the tps546d24.rst format.
Change in v3:
1. Modify the patch description.
2. Put the change log between the dashes and diffstat.
Change in v4:
1. Modify the patch description.
2. Clear the bit 7 of PMBUS_VOUT_MODE to change the mode from relative
to absolute.
3. Add the vendor prefix.
Change in v5:
1. Update the patch description.
2. Extend the title underline at tps546d24.rst line 4.
3. Add error handler and cover the edge case.
---
---
Documentation/hwmon/index.rst | 1 +
Documentation/hwmon/tps546d24.rst | 35 +++++++++++++++++++
MAINTAINERS | 7 ++++
drivers/hwmon/pmbus/Kconfig | 9 +++++
drivers/hwmon/pmbus/Makefile | 1 +
drivers/hwmon/pmbus/tps546d24.c | 71 +++++++++++++++++++++++++++++++++++++++
6 files changed, 124 insertions(+)
create mode 100644 Documentation/hwmon/tps546d24.rst
create mode 100644 drivers/hwmon/pmbus/tps546d24.c
diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
index f7113b0..d3eede4 100644
--- a/Documentation/hwmon/index.rst
+++ b/Documentation/hwmon/index.rst
@@ -205,6 +205,7 @@ Hardware Monitoring Kernel Drivers
tps23861
tps40422
tps53679
+ tps546d24
twl4030-madc-hwmon
ucd9000
ucd9200
diff --git a/Documentation/hwmon/tps546d24.rst b/Documentation/hwmon/tps546d24.rst
new file mode 100644
index 0000000..97adb8a
--- /dev/null
+++ b/Documentation/hwmon/tps546d24.rst
@@ -0,0 +1,35 @@
+.. SPDX-License-Identifier: GPL-2.0-only
+
+Kernel driver tps546d24
+=======================
+
+Supported chips:
+
+ * TI TPS546D24
+
+ Prefix: 'tps546d24'
+
+ Addresses scanned: -
+
+ Datasheet: https://www.ti.com/lit/gpn/tps546d24
+
+Author: Duke Du <dukedu83@gmail.com>
+
+
+Description
+-----------
+
+The TPS546D24A is a highly integrated, non-isolated DC/DC converter capable
+of high frequency operation and 40-A current output from a 7-mm x 5-mm
+package.
+
+Two, three, and four TPS546D24A devices can be interconnected
+to provide up to 160 A on a single output. The device has an option to
+overdrive the internal 5-V LDO with an external 5-V supply via the VDD5
+pin to improve efficiency and reduce power dissipation of the converter.
+
+
+Platform data support
+---------------------
+
+The driver supports standard PMBus driver platform data.
diff --git a/MAINTAINERS b/MAINTAINERS
index 8a5012b..fa2d4fb 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -20583,6 +20583,13 @@ Q: https://patchwork.kernel.org/project/linux-integrity/list/
T: git git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git
F: drivers/char/tpm/
+TPS546D24 DRIVER
+M: Duke Du <dukedu83@gmail.com>
+L: linux-hwmon@vger.kernel.org
+S: Maintained
+F: Documentation/hwmon/tps546d24.rst
+F: drivers/hwmon/pmbus/tps546d24.c
+
TRACING
M: Steven Rostedt <rostedt@goodmis.org>
M: Ingo Molnar <mingo@redhat.com>
diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
index 951e4a9..89668af 100644
--- a/drivers/hwmon/pmbus/Kconfig
+++ b/drivers/hwmon/pmbus/Kconfig
@@ -397,6 +397,15 @@ config SENSORS_TPS53679
This driver can also be built as a module. If so, the module will
be called tps53679.
+config SENSORS_TPS546D24
+ tristate "TPS546D24"
+ help
+ If you say yes here you get hardware monitoring support for TEXAS
+ TPS546D24.
+
+ This driver can also be built as a module. If so, the module will
+ be called tps546d24
+
config SENSORS_UCD9000
tristate "TI UCD90120, UCD90124, UCD90160, UCD90320, UCD9090, UCD90910"
help
diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
index e2fe86f..0002dbe 100644
--- a/drivers/hwmon/pmbus/Makefile
+++ b/drivers/hwmon/pmbus/Makefile
@@ -41,6 +41,7 @@ obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o
obj-$(CONFIG_SENSORS_STPDDC60) += stpddc60.o
obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
+obj-$(CONFIG_SENSORS_TPS546D24) += tps546d24.o
obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
obj-$(CONFIG_SENSORS_XDPE122) += xdpe12284.o
diff --git a/drivers/hwmon/pmbus/tps546d24.c b/drivers/hwmon/pmbus/tps546d24.c
new file mode 100644
index 0000000..ef2b0be
--- /dev/null
+++ b/drivers/hwmon/pmbus/tps546d24.c
@@ -0,0 +1,71 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Hardware monitoring driver for TEXAS TPS546D24 buck converter
+ */
+
+#include <linux/err.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/pmbus.h>
+#include "pmbus.h"
+
+static struct pmbus_driver_info tps546d24_info = {
+ .pages = 1,
+ .format[PSC_VOLTAGE_IN] = linear,
+ .format[PSC_VOLTAGE_OUT] = linear,
+ .format[PSC_TEMPERATURE] = linear,
+ .format[PSC_CURRENT_OUT] = linear,
+ .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
+ | PMBUS_HAVE_IOUT | PMBUS_HAVE_VOUT
+ | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_VOUT
+ | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
+};
+
+static int tps546d24_probe(struct i2c_client *client)
+{
+ int reg;
+
+ reg = i2c_smbus_read_byte_data(client, PMBUS_VOUT_MODE);
+ if (reg < 0)
+ return reg;
+
+ if (reg & 0x80) {
+ int err;
+
+ err = i2c_smbus_write_byte_data(client, PMBUS_VOUT_MODE, reg & 0x7f);
+ if (err < 0)
+ return err;
+ }
+ return pmbus_do_probe(client, &tps546d24_info);
+}
+
+static const struct i2c_device_id tps546d24_id[] = {
+ {"tps546d24", 0},
+ {}
+};
+MODULE_DEVICE_TABLE(i2c, tps546d24_id);
+
+static const struct of_device_id tps546d24_of_match[] = {
+ {.compatible = "ti,tps546d24"},
+ {}
+};
+MODULE_DEVICE_TABLE(of, tps546d24_of_match);
+
+/* This is the driver that will be inserted */
+static struct i2c_driver tps546d24_driver = {
+ .driver = {
+ .name = "tps546d24",
+ .of_match_table = of_match_ptr(tps546d24_of_match),
+ },
+ .probe_new = tps546d24_probe,
+ .id_table = tps546d24_id,
+};
+
+module_i2c_driver(tps546d24_driver);
+
+MODULE_AUTHOR("Duke Du <dukedu83@gmail.com>");
+MODULE_DESCRIPTION("PMBus driver for TI tps546d24");
+MODULE_LICENSE("GPL");
+MODULE_IMPORT_NS(PMBUS);
--
2.7.4
^ permalink raw reply related [flat|nested] 2+ messages in thread
* Re: [PATCH v5] hwmon: Add driver for the TEXAS TPS546D24 Buck Converter.
2022-09-12 3:01 [PATCH v5] hwmon: Add driver for the TEXAS TPS546D24 Buck Converter Duke Du
@ 2022-09-20 14:14 ` Guenter Roeck
0 siblings, 0 replies; 2+ messages in thread
From: Guenter Roeck @ 2022-09-20 14:14 UTC (permalink / raw)
To: Duke Du
Cc: jdelvare, corbet, linux-hwmon, linux-doc, linux-kernel, fran.hsu,
george.hung, charles.hsu, duke.du
On Mon, Sep 12, 2022 at 11:01:08AM +0800, Duke Du wrote:
> From: Duke Du <dukedu83@gmail.com>
>
> Add the pmbus driver for TEXAS tps546d24 Buck Converter.
> The vout mode of tps546d24 supported relative data format,
> which is not supported by the PMBus core.
>
> Signed-off-by: Duke Du <dukedu83@gmail.com>
Applied to hwmon-next.
Thanks,
Guenter
> ---
> Change in v1:
> Initial patchset.
> Change in v2:
> Correct the tps546d24.rst format.
> Change in v3:
> 1. Modify the patch description.
> 2. Put the change log between the dashes and diffstat.
> Change in v4:
> 1. Modify the patch description.
> 2. Clear the bit 7 of PMBUS_VOUT_MODE to change the mode from relative
> to absolute.
> 3. Add the vendor prefix.
> Change in v5:
> 1. Update the patch description.
> 2. Extend the title underline at tps546d24.rst line 4.
> 3. Add error handler and cover the edge case.
> ---
> ---
> Documentation/hwmon/index.rst | 1 +
> Documentation/hwmon/tps546d24.rst | 35 +++++++++++++++++++
> MAINTAINERS | 7 ++++
> drivers/hwmon/pmbus/Kconfig | 9 +++++
> drivers/hwmon/pmbus/Makefile | 1 +
> drivers/hwmon/pmbus/tps546d24.c | 71 +++++++++++++++++++++++++++++++++++++++
> 6 files changed, 124 insertions(+)
> create mode 100644 Documentation/hwmon/tps546d24.rst
> create mode 100644 drivers/hwmon/pmbus/tps546d24.c
>
> diff --git a/Documentation/hwmon/index.rst b/Documentation/hwmon/index.rst
> index f7113b0..d3eede4 100644
> --- a/Documentation/hwmon/index.rst
> +++ b/Documentation/hwmon/index.rst
> @@ -205,6 +205,7 @@ Hardware Monitoring Kernel Drivers
> tps23861
> tps40422
> tps53679
> + tps546d24
> twl4030-madc-hwmon
> ucd9000
> ucd9200
> diff --git a/Documentation/hwmon/tps546d24.rst b/Documentation/hwmon/tps546d24.rst
> new file mode 100644
> index 0000000..97adb8a
> --- /dev/null
> +++ b/Documentation/hwmon/tps546d24.rst
> @@ -0,0 +1,35 @@
> +.. SPDX-License-Identifier: GPL-2.0-only
> +
> +Kernel driver tps546d24
> +=======================
> +
> +Supported chips:
> +
> + * TI TPS546D24
> +
> + Prefix: 'tps546d24'
> +
> + Addresses scanned: -
> +
> + Datasheet: https://www.ti.com/lit/gpn/tps546d24
> +
> +Author: Duke Du <dukedu83@gmail.com>
> +
> +
> +Description
> +-----------
> +
> +The TPS546D24A is a highly integrated, non-isolated DC/DC converter capable
> +of high frequency operation and 40-A current output from a 7-mm x 5-mm
> +package.
> +
> +Two, three, and four TPS546D24A devices can be interconnected
> +to provide up to 160 A on a single output. The device has an option to
> +overdrive the internal 5-V LDO with an external 5-V supply via the VDD5
> +pin to improve efficiency and reduce power dissipation of the converter.
> +
> +
> +Platform data support
> +---------------------
> +
> +The driver supports standard PMBus driver platform data.
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 8a5012b..fa2d4fb 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -20583,6 +20583,13 @@ Q: https://patchwork.kernel.org/project/linux-integrity/list/
> T: git git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd.git
> F: drivers/char/tpm/
>
> +TPS546D24 DRIVER
> +M: Duke Du <dukedu83@gmail.com>
> +L: linux-hwmon@vger.kernel.org
> +S: Maintained
> +F: Documentation/hwmon/tps546d24.rst
> +F: drivers/hwmon/pmbus/tps546d24.c
> +
> TRACING
> M: Steven Rostedt <rostedt@goodmis.org>
> M: Ingo Molnar <mingo@redhat.com>
> diff --git a/drivers/hwmon/pmbus/Kconfig b/drivers/hwmon/pmbus/Kconfig
> index 951e4a9..89668af 100644
> --- a/drivers/hwmon/pmbus/Kconfig
> +++ b/drivers/hwmon/pmbus/Kconfig
> @@ -397,6 +397,15 @@ config SENSORS_TPS53679
> This driver can also be built as a module. If so, the module will
> be called tps53679.
>
> +config SENSORS_TPS546D24
> + tristate "TPS546D24"
> + help
> + If you say yes here you get hardware monitoring support for TEXAS
> + TPS546D24.
> +
> + This driver can also be built as a module. If so, the module will
> + be called tps546d24
> +
> config SENSORS_UCD9000
> tristate "TI UCD90120, UCD90124, UCD90160, UCD90320, UCD9090, UCD90910"
> help
> diff --git a/drivers/hwmon/pmbus/Makefile b/drivers/hwmon/pmbus/Makefile
> index e2fe86f..0002dbe 100644
> --- a/drivers/hwmon/pmbus/Makefile
> +++ b/drivers/hwmon/pmbus/Makefile
> @@ -41,6 +41,7 @@ obj-$(CONFIG_SENSORS_Q54SJ108A2) += q54sj108a2.o
> obj-$(CONFIG_SENSORS_STPDDC60) += stpddc60.o
> obj-$(CONFIG_SENSORS_TPS40422) += tps40422.o
> obj-$(CONFIG_SENSORS_TPS53679) += tps53679.o
> +obj-$(CONFIG_SENSORS_TPS546D24) += tps546d24.o
> obj-$(CONFIG_SENSORS_UCD9000) += ucd9000.o
> obj-$(CONFIG_SENSORS_UCD9200) += ucd9200.o
> obj-$(CONFIG_SENSORS_XDPE122) += xdpe12284.o
> diff --git a/drivers/hwmon/pmbus/tps546d24.c b/drivers/hwmon/pmbus/tps546d24.c
> new file mode 100644
> index 0000000..ef2b0be
> --- /dev/null
> +++ b/drivers/hwmon/pmbus/tps546d24.c
> @@ -0,0 +1,71 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Hardware monitoring driver for TEXAS TPS546D24 buck converter
> + */
> +
> +#include <linux/err.h>
> +#include <linux/i2c.h>
> +#include <linux/init.h>
> +#include <linux/kernel.h>
> +#include <linux/module.h>
> +#include <linux/pmbus.h>
> +#include "pmbus.h"
> +
> +static struct pmbus_driver_info tps546d24_info = {
> + .pages = 1,
> + .format[PSC_VOLTAGE_IN] = linear,
> + .format[PSC_VOLTAGE_OUT] = linear,
> + .format[PSC_TEMPERATURE] = linear,
> + .format[PSC_CURRENT_OUT] = linear,
> + .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_IIN
> + | PMBUS_HAVE_IOUT | PMBUS_HAVE_VOUT
> + | PMBUS_HAVE_STATUS_IOUT | PMBUS_HAVE_STATUS_VOUT
> + | PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP,
> +};
> +
> +static int tps546d24_probe(struct i2c_client *client)
> +{
> + int reg;
> +
> + reg = i2c_smbus_read_byte_data(client, PMBUS_VOUT_MODE);
> + if (reg < 0)
> + return reg;
> +
> + if (reg & 0x80) {
> + int err;
> +
> + err = i2c_smbus_write_byte_data(client, PMBUS_VOUT_MODE, reg & 0x7f);
> + if (err < 0)
> + return err;
> + }
> + return pmbus_do_probe(client, &tps546d24_info);
> +}
> +
> +static const struct i2c_device_id tps546d24_id[] = {
> + {"tps546d24", 0},
> + {}
> +};
> +MODULE_DEVICE_TABLE(i2c, tps546d24_id);
> +
> +static const struct of_device_id tps546d24_of_match[] = {
> + {.compatible = "ti,tps546d24"},
> + {}
> +};
> +MODULE_DEVICE_TABLE(of, tps546d24_of_match);
> +
> +/* This is the driver that will be inserted */
> +static struct i2c_driver tps546d24_driver = {
> + .driver = {
> + .name = "tps546d24",
> + .of_match_table = of_match_ptr(tps546d24_of_match),
> + },
> + .probe_new = tps546d24_probe,
> + .id_table = tps546d24_id,
> +};
> +
> +module_i2c_driver(tps546d24_driver);
> +
> +MODULE_AUTHOR("Duke Du <dukedu83@gmail.com>");
> +MODULE_DESCRIPTION("PMBus driver for TI tps546d24");
> +MODULE_LICENSE("GPL");
> +MODULE_IMPORT_NS(PMBUS);
^ permalink raw reply [flat|nested] 2+ messages in thread
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2022-09-12 3:01 [PATCH v5] hwmon: Add driver for the TEXAS TPS546D24 Buck Converter Duke Du
2022-09-20 14:14 ` Guenter Roeck
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