From: Hugo Villeneuve <hvilleneuve(a)dimonoff.com>
Some variants in this series of UART controllers have GPIO pins that
are shared between GPIO and modem control lines.
The pin mux mode (GPIO or modem control lines) can be set for each
ports (channels) supported by the variant.
This adds a property to the device tree to set the GPIO pin mux to
modem control lines on selected ports if needed.
Cc: <stable(a)vger.kernel.org> # 6.1.x
Signed-off-by: Hugo Villeneuve <hvilleneuve(a)dimonoff.com>
Acked-by: Conor Dooley <conor.dooley(a)microchip.com>
Reviewed-by: Lech Perczak <lech.perczak(a)camlingroup.com>
---
.../bindings/serial/nxp,sc16is7xx.txt | 46 +++++++++++++++++++
1 file changed, 46 insertions(+)
diff --git a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
index 0fa8e3e43bf8..1a7e4bff0456 100644
--- a/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
+++ b/Documentation/devicetree/bindings/serial/nxp,sc16is7xx.txt
@@ -23,6 +23,9 @@ Optional properties:
1 = active low.
- irda-mode-ports: An array that lists the indices of the port that
should operate in IrDA mode.
+- nxp,modem-control-line-ports: An array that lists the indices of the port that
+ should have shared GPIO lines configured as
+ modem control lines.
Example:
sc16is750: sc16is750@51 {
@@ -35,6 +38,26 @@ Example:
#gpio-cells = <2>;
};
+ sc16is752: sc16is752@53 {
+ compatible = "nxp,sc16is752";
+ reg = <0x53>;
+ clocks = <&clk20m>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
+ gpio-controller; /* Port 0 as GPIOs */
+ #gpio-cells = <2>;
+ };
+
+ sc16is752: sc16is752@54 {
+ compatible = "nxp,sc16is752";
+ reg = <0x54>;
+ clocks = <&clk20m>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
+ };
+
* spi as bus
Required properties:
@@ -59,6 +82,9 @@ Optional properties:
1 = active low.
- irda-mode-ports: An array that lists the indices of the port that
should operate in IrDA mode.
+- nxp,modem-control-line-ports: An array that lists the indices of the port that
+ should have shared GPIO lines configured as
+ modem control lines.
Example:
sc16is750: sc16is750@0 {
@@ -70,3 +96,23 @@ Example:
gpio-controller;
#gpio-cells = <2>;
};
+
+ sc16is752: sc16is752@1 {
+ compatible = "nxp,sc16is752";
+ reg = <1>;
+ clocks = <&clk20m>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ nxp,modem-control-line-ports = <1>; /* Port 1 as modem control lines */
+ gpio-controller; /* Port 0 as GPIOs */
+ #gpio-cells = <2>;
+ };
+
+ sc16is752: sc16is752@2 {
+ compatible = "nxp,sc16is752";
+ reg = <2>;
+ clocks = <&clk20m>;
+ interrupt-parent = <&gpio3>;
+ interrupts = <7 IRQ_TYPE_EDGE_FALLING>;
+ nxp,modem-control-line-ports = <0 1>; /* Ports 0 and 1 as modem control lines */
+ };
--
2.30.2
This patch series enables support of i2c bus for Intel Alder Lake PCH-P and PCH-M
on kernel version 5.10. These patches add ID's of Alder lake platform in these
drivers: i801, intel-lpss, pinctrl. ID's were taken from linux kernel version 5.15.
Alexander Ofitserov (3):
i2c: i801: Add support for Intel Alder Lake PCH
mfd: intel-lpss: Add Alder Lake's PCI devices IDs
pinctrl: tigerlake: Add Alder Lake-P ACPI ID
drivers/i2c/busses/i2c-i801.c | 8 +++++
drivers/mfd/intel-lpss-pci.c | 41 +++++++++++++++++++++++
drivers/pinctrl/intel/pinctrl-tigerlake.c | 1 +
3 files changed, 50 insertions(+)
--
2.33.8