[PATCH v2 12/21] pinctrl: add i.MXRT driver

Giulio Benetti
2020-01-10T14:47:02Z

Add i.MXRT pinctrl driver.

Signed-off-by: Giulio Benetti <giulio.benetti@benettiengineering.com>
---
drivers/pinctrl/nxp/Kconfig | 14 ++++++++++
drivers/pinctrl/nxp/Makefile | 1 +
drivers/pinctrl/nxp/pinctrl-imxrt.c | 40 +++++++++++++++++++++++++++++
3 files changed, 55 insertions(+)
create mode 100644 drivers/pinctrl/nxp/pinctrl-imxrt.c

diff --git a/drivers/pinctrl/nxp/Kconfig b/drivers/pinctrl/nxp/Kconfig
index f2e67ca231..ec55351e61 100644
--- a/drivers/pinctrl/nxp/Kconfig
+++ b/drivers/pinctrl/nxp/Kconfig
@@ -99,6 +99,20 @@ config PINCTRL_MXS
familiy, e.g. i.MX28. This feature depends on device tree
configuration.

+config PINCTRL_IMXRT
+ bool "IMXRT pinctrl driver"
+ depends on ARCH_IMXRT && PINCTRL_FULL
+ select DEVRES
+ select PINCTRL_IMX
+ help
+ Say Y here to enable the imxrt pinctrl driver
+
+ This provides a simple pinctrl driver for i.MXRT SoC familiy.
+ This feature depends on device tree configuration. This driver
+ is different from the linux one, this is a simple implementation,
+ only parses the 'fsl,pins' property and configure related
+ registers.
+
config PINCTRL_VYBRID
bool "Vybrid (vf610) pinctrl driver"
depends on ARCH_VF610 && PINCTRL_FULL
diff --git a/drivers/pinctrl/nxp/Makefile b/drivers/pinctrl/nxp/Makefile
index b86448aac9..066ca75b65 100644
--- a/drivers/pinctrl/nxp/Makefile
+++ b/drivers/pinctrl/nxp/Makefile
@@ -8,3 +8,4 @@ obj-$(CONFIG_PINCTRL_IMX8) += pinctrl-imx8.o
obj-$(CONFIG_PINCTRL_IMX8M) += pinctrl-imx8m.o
obj-$(CONFIG_PINCTRL_MXS) += pinctrl-mxs.o
obj-$(CONFIG_PINCTRL_VYBRID) += pinctrl-vf610.o
+obj-$(CONFIG_PINCTRL_IMXRT) += pinctrl-imxrt.o
diff --git a/drivers/pinctrl/nxp/pinctrl-imxrt.c b/drivers/pinctrl/nxp/pinctrl-imxrt.c
new file mode 100644
index 0000000000..4a93941927
--- /dev/null
+++ b/drivers/pinctrl/nxp/pinctrl-imxrt.c
@@ -0,0 +1,40 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (C) 2019
+ * Author(s): Giulio Benetti <giulio.benetti@benettiengineering.com>
+ */
+
+#include <common.h>
+#include <dm.h>
+#include <dm/pinctrl.h>
+
+#include "pinctrl-imx.h"
+
+static struct imx_pinctrl_soc_info imxrt_pinctrl_soc_info = {
+ .flags = ZERO_OFFSET_VALID,
+};
+
+static int imxrt_pinctrl_probe(struct udevice *dev)
+{
+ struct imx_pinctrl_soc_info *info =
+ (struct imx_pinctrl_soc_info *)dev_get_driver_data(dev);
+
+ return imx_pinctrl_probe(dev, info);
+}
+
+static const struct udevice_id imxrt_pinctrl_match[] = {
+ { .compatible = "fsl,imxrt-iomuxc",
+ .data = (ulong)&imxrt_pinctrl_soc_info },
+ { /* sentinel */ }
+};
+
+U_BOOT_DRIVER(imxrt_pinctrl) = {
+ .name = "imxrt-pinctrl",
+ .id = UCLASS_PINCTRL,
+ .of_match = of_match_ptr(imxrt_pinctrl_match),
+ .probe = imxrt_pinctrl_probe,
+ .remove = imx_pinctrl_remove,
+ .priv_auto_alloc_size = sizeof(struct imx_pinctrl_priv),
+ .ops = &imx_pinctrl_ops,
+ .flags = DM_FLAG_PRE_RELOC,
+};
--
2.20.1