| Message ID | 20211105113859.101868-1-robert.marko@sartura.hr |
|---|---|
| State | New |
| Headers | show |
| Series | [v8,1/6] mfd: simple-mfd-i2c: Add Delta TN48M CPLD support | expand |
Am 2021-11-05 12:38, schrieb Robert Marko: > Delta TN48M switches have a Lattice CPLD that serves > multiple purposes including being a GPIO expander. > > So, lets use the simple I2C MFD driver to provide the MFD core. > > Also add a virtual symbol which pulls in the simple-mfd-i2c driver and > provide a common symbol on which the subdevice drivers can depend on. > > Signed-off-by: Robert Marko <robert.marko@sartura.hr> > Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> > --- > Changes in v2: > * Drop the custom MFD driver and header > * Use simple I2C MFD driver > --- > drivers/mfd/Kconfig | 10 ++++++++++ > drivers/mfd/simple-mfd-i2c.c | 1 + > 2 files changed, 11 insertions(+) > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > index ad15be6b86bc..3701657e831d 100644 > --- a/drivers/mfd/Kconfig > +++ b/drivers/mfd/Kconfig > @@ -297,6 +297,16 @@ config MFD_ASIC3 > This driver supports the ASIC3 multifunction chip found on many > PDAs (mainly iPAQ and HTC based ones) > > +config MFD_TN48M_CPLD > + tristate "Delta Networks TN48M switch CPLD driver" > + depends on I2C > + select MFD_SIMPLE_MFD_I2C Is this device used on multiple architectures? See commit de1292817cf73 (mfd: MFD_SL28CPLD should depend on ARCH_LAYERSCAPE). -michael
On Sat, Nov 6, 2021 at 12:23 AM Michael Walle <michael@walle.cc> wrote: > > Am 2021-11-05 12:38, schrieb Robert Marko: > > Delta TN48M switches have a Lattice CPLD that serves > > multiple purposes including being a GPIO expander. > > > > So, lets use the simple I2C MFD driver to provide the MFD core. > > > > Also add a virtual symbol which pulls in the simple-mfd-i2c driver and > > provide a common symbol on which the subdevice drivers can depend on. > > > > Signed-off-by: Robert Marko <robert.marko@sartura.hr> > > Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> > > --- > > Changes in v2: > > * Drop the custom MFD driver and header > > * Use simple I2C MFD driver > > --- > > drivers/mfd/Kconfig | 10 ++++++++++ > > drivers/mfd/simple-mfd-i2c.c | 1 + > > 2 files changed, 11 insertions(+) > > > > diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig > > index ad15be6b86bc..3701657e831d 100644 > > --- a/drivers/mfd/Kconfig > > +++ b/drivers/mfd/Kconfig > > @@ -297,6 +297,16 @@ config MFD_ASIC3 > > This driver supports the ASIC3 multifunction chip found on many > > PDAs (mainly iPAQ and HTC based ones) > > > > +config MFD_TN48M_CPLD > > + tristate "Delta Networks TN48M switch CPLD driver" > > + depends on I2C > > + select MFD_SIMPLE_MFD_I2C > > Is this device used on multiple architectures? See commit > de1292817cf73 (mfd: MFD_SL28CPLD should depend on ARCH_LAYERSCAPE). No, so far it's only under ARCH_MVEBU. Will add the dependency to ARCH_MVEBU or COMPILE_TEST Regards, Robert > > -michael
diff --git a/drivers/mfd/Kconfig b/drivers/mfd/Kconfig index ad15be6b86bc..3701657e831d 100644 --- a/drivers/mfd/Kconfig +++ b/drivers/mfd/Kconfig @@ -297,6 +297,16 @@ config MFD_ASIC3 This driver supports the ASIC3 multifunction chip found on many PDAs (mainly iPAQ and HTC based ones) +config MFD_TN48M_CPLD + tristate "Delta Networks TN48M switch CPLD driver" + depends on I2C + select MFD_SIMPLE_MFD_I2C + help + Select this option to enable support for Delta Networks TN48M switch + CPLD. It consists of reset and GPIO drivers. CPLD provides GPIOS-s + for the SFP slots as well as power supply related information. + SFP support depends on the GPIO driver being selected. + config PMIC_DA903X bool "Dialog Semiconductor DA9030/DA9034 PMIC Support" depends on I2C=y diff --git a/drivers/mfd/simple-mfd-i2c.c b/drivers/mfd/simple-mfd-i2c.c index 87f684cff9a1..af8e91781417 100644 --- a/drivers/mfd/simple-mfd-i2c.c +++ b/drivers/mfd/simple-mfd-i2c.c @@ -39,6 +39,7 @@ static int simple_mfd_i2c_probe(struct i2c_client *i2c) static const struct of_device_id simple_mfd_i2c_of_match[] = { { .compatible = "kontron,sl28cpld" }, + { .compatible = "delta,tn48m-cpld" }, {} }; MODULE_DEVICE_TABLE(of, simple_mfd_i2c_of_match);
Delta TN48M switches have a Lattice CPLD that serves multiple purposes including being a GPIO expander. So, lets use the simple I2C MFD driver to provide the MFD core. Also add a virtual symbol which pulls in the simple-mfd-i2c driver and provide a common symbol on which the subdevice drivers can depend on. Signed-off-by: Robert Marko <robert.marko@sartura.hr> Acked-for-MFD-by: Lee Jones <lee.jones@linaro.org> --- Changes in v2: * Drop the custom MFD driver and header * Use simple I2C MFD driver --- drivers/mfd/Kconfig | 10 ++++++++++ drivers/mfd/simple-mfd-i2c.c | 1 + 2 files changed, 11 insertions(+)