From: Robert Marko <robert.marko@sartura.hr>
To: linus.walleij@linaro.org, bgolaszewski@baylibre.com,
robh+dt@kernel.org, lee.jones@linaro.org,
linux-gpio@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: luka.perkov@sartura.hr, jmp@epiphyte.org, pmenzel@molgen.mpg.de,
buczek@molgen.mpg.de, Robert Marko <robert.marko@sartura.hr>
Subject: [PATCH v2 1/4] mfd: simple-mfd-i2c: Add Delta TN48M CPLD support
Date: Mon, 24 May 2021 14:05:36 +0200 [thread overview]
Message-ID: <20210524120539.3267145-1-robert.marko@sartura.hr> (raw)
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>
---
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 5c7f2b100191..1042424c5678 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 MFD 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);
--
2.31.1
next reply other threads:[~2021-05-24 12:05 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-05-24 12:05 Robert Marko [this message]
2021-05-24 12:05 ` [PATCH v2 2/4] gpio: Add Delta TN48M CPLD GPIO driver Robert Marko
2021-05-24 12:44 ` Andy Shevchenko
2021-05-25 14:41 ` Bartosz Golaszewski
2021-05-28 0:37 ` Linus Walleij
2021-05-24 12:05 ` [PATCH v2 3/4] dt-bindings: mfd: Add Delta TN48M CPLD drivers bindings Robert Marko
2021-05-24 23:09 ` Rob Herring
2021-05-25 7:46 ` Lee Jones
2021-05-25 9:34 ` Robert Marko
2021-05-26 7:52 ` Lee Jones
2021-05-31 8:42 ` Robert Marko
2021-06-01 8:19 ` Lee Jones
2021-06-01 8:22 ` Lee Jones
2021-06-01 9:10 ` Robert Marko
2021-06-01 9:31 ` Lee Jones
2021-06-01 10:09 ` Robert Marko
2021-06-01 9:06 ` Robert Marko
2021-06-01 9:12 ` Lee Jones
2021-06-01 13:54 ` Michael Walle
2021-06-01 13:57 ` Robert Marko
2021-06-01 13:58 ` Lee Jones
2021-06-01 14:48 ` Lee Jones
2021-06-02 9:12 ` Robert Marko
2021-06-02 10:03 ` Lee Jones
2021-06-02 10:22 ` Michael Walle
2021-06-02 10:44 ` Lee Jones
2021-05-25 9:46 ` Robert Marko
2021-05-25 21:43 ` Rob Herring
2021-05-31 13:08 ` Robert Marko
2021-05-24 12:05 ` [PATCH v2 4/4] MAINTAINERS: Add Delta Networks TN48M CPLD drivers Robert Marko
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