73 lines
2.8 KiB
Diff
73 lines
2.8 KiB
Diff
|
From: AngeloGioacchino Del Regno
|
||
|
|
<angelogioacchino.delregno@somainline.org>
|
||
|
|
To: linus.walleij@linaro.org
|
||
|
|
Cc: linux-kernel@vger.kernel.org, konrad.dybcio@somainline.org,
|
||
|
|
marijn.suijten@somainline.org, martin.botka@somainline.org,
|
||
|
|
phone-devel@vger.kernel.org, linux-gpio@vger.kernel.org,
|
||
|
|
devicetree@vger.kernel.org, robh+dt@kernel.org,
|
||
|
|
AngeloGioacchino Del Regno
|
||
|
|
<angelogioacchino.delregno@somainline.org>
|
||
|
|
Subject: [PATCH v5 1/2] pinctrl: Add driver for Awinic AW9523/B I2C GPIO
|
||
|
|
Expander
|
||
|
|
Date: Mon, 25 Jan 2021 19:22:18 +0100
|
||
|
|
|
||
|
|
The Awinic AW9523(B) is a multi-function I2C gpio expander in a
|
||
|
|
TQFN-24L package, featuring PWM (max 37mA per pin, or total max
|
||
|
|
power 3.2Watts) for LED driving capability.
|
||
|
|
|
||
|
|
It has two ports with 8 pins per port (for a total of 16 pins),
|
||
|
|
configurable as either PWM with 1/256 stepping or GPIO input/output,
|
||
|
|
1.8V logic input; each GPIO can be configured as input or output
|
||
|
|
independently from each other.
|
||
|
|
|
||
|
|
This IC also has an internal interrupt controller, which is capable
|
||
|
|
of generating an interrupt for each GPIO, depending on the
|
||
|
|
configuration, and will raise an interrupt on the INTN pin to
|
||
|
|
advertise this to an external interrupt controller.
|
||
|
|
|
||
|
|
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@somainline.org>
|
||
|
|
---
|
||
|
|
drivers/pinctrl/Kconfig | 17 +
|
||
|
|
drivers/pinctrl/Makefile | 1 +
|
||
|
|
drivers/pinctrl/pinctrl-aw9523.c | 1122 ++++++++++++++++++++++++++++++
|
||
|
|
3 files changed, 1140 insertions(+)
|
||
|
|
create mode 100644 drivers/pinctrl/pinctrl-aw9523.c
|
||
|
|
|
||
|
|
--- a/drivers/pinctrl/Kconfig
|
||
|
|
+++ b/drivers/pinctrl/Kconfig
|
||
|
|
@@ -110,6 +110,24 @@ config PINCTRL_AMD
|
||
|
|
Requires ACPI/FDT device enumeration code to set up a platform
|
||
|
|
device.
|
||
|
|
|
||
|
|
+config PINCTRL_AW9523
|
||
|
|
+ bool "Awinic AW9523/AW9523B I2C GPIO expander pinctrl driver"
|
||
|
|
+ depends on OF && I2C
|
||
|
|
+ select PINMUX
|
||
|
|
+ select PINCONF
|
||
|
|
+ select GENERIC_PINCONF
|
||
|
|
+ select GPIOLIB
|
||
|
|
+ select GPIOLIB_IRQCHIP
|
||
|
|
+ select REGMAP
|
||
|
|
+ select REGMAP_I2C
|
||
|
|
+ help
|
||
|
|
+ The Awinic AW9523/AW9523B is a multi-function I2C GPIO
|
||
|
|
+ expander with PWM functionality. This driver bundles a
|
||
|
|
+ pinctrl driver to select the function muxing and a GPIO
|
||
|
|
+ driver to handle GPIO, when the GPIO function is selected.
|
||
|
|
+
|
||
|
|
+ Say yes to enable pinctrl and GPIO support for the AW9523(B).
|
||
|
|
+
|
||
|
|
config PINCTRL_BM1880
|
||
|
|
bool "Bitmain BM1880 Pinctrl driver"
|
||
|
|
depends on OF && (ARCH_BITMAIN || COMPILE_TEST)
|
||
|
|
--- a/drivers/pinctrl/Makefile
|
||
|
|
+++ b/drivers/pinctrl/Makefile
|
||
|
|
@@ -14,6 +14,7 @@ obj-$(CONFIG_PINCTRL_AXP209) += pinctrl-
|
||
|
|
obj-$(CONFIG_PINCTRL_AT91) += pinctrl-at91.o
|
||
|
|
obj-$(CONFIG_PINCTRL_AT91PIO4) += pinctrl-at91-pio4.o
|
||
|
|
obj-$(CONFIG_PINCTRL_AMD) += pinctrl-amd.o
|
||
|
|
+obj-$(CONFIG_PINCTRL_AW9523) += pinctrl-aw9523.o
|
||
|
|
obj-$(CONFIG_PINCTRL_BM1880) += pinctrl-bm1880.o
|
||
|
|
obj-$(CONFIG_PINCTRL_DA850_PUPD) += pinctrl-da850-pupd.o
|
||
|
|
obj-$(CONFIG_PINCTRL_DA9062) += pinctrl-da9062.o
|