[PATCH v2 1/4] dt-bindings: pinctrl: k3: Introduce pinmux definitions

Vignesh R
2018-11-13T06:01:09Z

The dt-bindings header for TI K3 AM6 SoCs define a set of macros for
defining pinmux configs in human readable form, instead of raw-coded
hex values.

Signed-off-by: Vignesh R <vigneshr@ti.com>
---
MAINTAINERS | 1 +
include/dt-bindings/pinctrl/k3.h | 35 ++++++++++++++++++++++++++++++++
2 files changed, 36 insertions(+)
create mode 100644 include/dt-bindings/pinctrl/k3.h

diff --git a/MAINTAINERS b/MAINTAINERS
index fa45ff36fde9..1574ad6d7ead 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -2204,6 +2204,7 @@ S: Supported
F: Documentation/devicetree/bindings/arm/ti/k3.txt
F: arch/arm64/boot/dts/ti/Makefile
F: arch/arm64/boot/dts/ti/k3-*
+F: include/dt-bindings/pinctrl/k3.h

ARM/TEXAS INSTRUMENT KEYSTONE ARCHITECTURE
M: Santosh Shilimkar <ssantosh@kernel.org>
diff --git a/include/dt-bindings/pinctrl/k3.h b/include/dt-bindings/pinctrl/k3.h
new file mode 100644
index 000000000000..463d845a9b36
--- /dev/null
+++ b/include/dt-bindings/pinctrl/k3.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+/*
+ * This header provides constants for pinctrl bindings for TI's K3 SoC
+ * family.
+ *
+ * Copyright (C) 2018 Texas Instruments Incorporated - http://www.ti.com/
+ */
+#ifndef _DT_BINDINGS_PINCTRL_TI_K3_H
+#define _DT_BINDINGS_PINCTRL_TI_K3_H
+
+#define PULLUDEN_SHIFT (16)
+#define PULLTYPESEL_SHIFT (17)
+#define RXACTIVE_SHIFT (18)
+
+#define PULL_DISABLE (1 << PULLUDEN_SHIFT)
+#define PULL_ENABLE (0 << PULLUDEN_SHIFT)
+
+#define PULL_UP (1 << PULLTYPESEL_SHIFT | PULL_ENABLE)
+#define PULL_DOWN (0 << PULLTYPESEL_SHIFT | PULL_ENABLE)
+
+#define INPUT_EN (1 << RXACTIVE_SHIFT)
+#define INPUT_DISABLE (0 << RXACTIVE_SHIFT)
+
+/* Only these macros are expected be used directly in device tree files */
+#define PIN_OUTPUT (INPUT_DISABLE | PULL_DISABLE)
+#define PIN_OUTPUT_PULLUP (INPUT_DISABLE | PULL_UP)
+#define PIN_OUTPUT_PULLDOWN (INPUT_DISABLE | PULL_DOWN)
+#define PIN_INPUT (INPUT_EN | PULL_DISABLE)
+#define PIN_INPUT_PULLUP (INPUT_EN | PULL_UP)
+#define PIN_INPUT_PULLDOWN (INPUT_EN | PULL_DOWN)
+
+#define AM65X_IOPAD(pa, val, muxmode) (((pa) & 0x1fff)) ((val) | (muxmode))
+#define AM65X_WKUP_IOPAD(pa, val, muxmode) (((pa) & 0x1fff)) ((val) | (muxmode))
+
+#endif
--
2.19.1