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authorVignesh R <vigneshr@ti.com>2018-11-13 11:31:08 +0530
committerTero Kristo <t-kristo@ti.com>2018-12-14 09:56:43 +0200
commitfc66393ab5d695533a5eb0bce8ceffa11d747933 (patch)
treee0ba68af88eb6d8722d65f940253a8f9efde62e8 /include/dt-bindings
parent8588eac3ff66e77fb681591714fd76da3a4da80d (diff)
dt-bindings: pinctrl: k3: Introduce pinmux definitions
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> Acked-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Rob Herring <robh@kernel.org> Acked-by: Nishanth Menon <nm@ti.com> Acked-by: Tony Lindgren <tony@atomide.com> Signed-off-by: Tero Kristo <t-kristo@ti.com>
Diffstat (limited to 'include/dt-bindings')
-rw-r--r--include/dt-bindings/pinctrl/k3.h35
1 files changed, 35 insertions, 0 deletions
diff --git a/include/dt-bindings/pinctrl/k3.h b/include/dt-bindings/pinctrl/k3.h
new file mode 100644
index 000000000000..45e11b6170ca
--- /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