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path: root/drivers/pinctrl/actions/pinctrl-owl.h
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Diffstat (limited to 'drivers/pinctrl/actions/pinctrl-owl.h')
-rw-r--r--drivers/pinctrl/actions/pinctrl-owl.h162
1 files changed, 162 insertions, 0 deletions
diff --git a/drivers/pinctrl/actions/pinctrl-owl.h b/drivers/pinctrl/actions/pinctrl-owl.h
new file mode 100644
index 000000000000..74342378937c
--- /dev/null
+++ b/drivers/pinctrl/actions/pinctrl-owl.h
@@ -0,0 +1,162 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * OWL SoC's Pinctrl definitions
+ *
+ * Copyright (c) 2014 Actions Semi Inc.
+ * Author: David Liu <liuwei@actions-semi.com>
+ *
+ * Copyright (c) 2018 Linaro Ltd.
+ * Author: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
+ */
+
+#ifndef __PINCTRL_OWL_H__
+#define __PINCTRL_OWL_H__
+
+#define OWL_PINCONF_SLEW_SLOW 0
+#define OWL_PINCONF_SLEW_FAST 1
+
+enum owl_pinconf_pull {
+ OWL_PINCONF_PULL_HIZ,
+ OWL_PINCONF_PULL_DOWN,
+ OWL_PINCONF_PULL_UP,
+ OWL_PINCONF_PULL_HOLD,
+};
+
+enum owl_pinconf_drv {
+ OWL_PINCONF_DRV_2MA,
+ OWL_PINCONF_DRV_4MA,
+ OWL_PINCONF_DRV_8MA,
+ OWL_PINCONF_DRV_12MA,
+};
+
+/**
+ * struct owl_pullctl - Actions pad pull control register
+ * @reg: offset to the pull control register
+ * @shift: shift value of the register
+ * @width: width of the register
+ */
+struct owl_pullctl {
+ int reg;
+ unsigned int shift;
+ unsigned int width;
+};
+
+/**
+ * struct owl_st - Actions pad schmitt trigger enable register
+ * @reg: offset to the schmitt trigger enable register
+ * @shift: shift value of the register
+ * @width: width of the register
+ */
+struct owl_st {
+ int reg;
+ unsigned int shift;
+ unsigned int width;
+};
+
+/**
+ * struct owl_pingroup - Actions pingroup definition
+ * @name: name of the pin group
+ * @pads: list of pins assigned to this pingroup
+ * @npads: size of @pads array
+ * @funcs: list of pinmux functions for this pingroup
+ * @nfuncs: size of @funcs array
+ * @mfpctl_reg: multiplexing control register offset
+ * @mfpctl_shift: multiplexing control register bit mask
+ * @mfpctl_width: multiplexing control register width
+ * @drv_reg: drive control register offset
+ * @drv_shift: drive control register bit mask
+ * @drv_width: driver control register width
+ * @sr_reg: slew rate control register offset
+ * @sr_shift: slew rate control register bit mask
+ * @sr_width: slew rate control register width
+ */
+struct owl_pingroup {
+ const char *name;
+ unsigned int *pads;
+ unsigned int npads;
+ unsigned int *funcs;
+ unsigned int nfuncs;
+
+ int mfpctl_reg;
+ unsigned int mfpctl_shift;
+ unsigned int mfpctl_width;
+
+ int drv_reg;
+ unsigned int drv_shift;
+ unsigned int drv_width;
+
+ int sr_reg;
+ unsigned int sr_shift;
+ unsigned int sr_width;
+};
+
+/**
+ * struct owl_padinfo - Actions pinctrl pad info
+ * @pad: pad name of the SoC
+ * @pullctl: pull control register info
+ * @st: schmitt trigger register info
+ */
+struct owl_padinfo {
+ int pad;
+ struct owl_pullctl *pullctl;
+ struct owl_st *st;
+};
+
+/**
+ * struct owl_pinmux_func - Actions pinctrl mux functions
+ * @name: name of the pinmux function.
+ * @groups: array of pin groups that may select this function.
+ * @ngroups: number of entries in @groups.
+ */
+struct owl_pinmux_func {
+ const char *name;
+ const char * const *groups;
+ unsigned int ngroups;
+};
+
+/**
+ * struct owl_gpio_port - Actions GPIO port info
+ * @offset: offset of the GPIO port.
+ * @pins: number of pins belongs to the GPIO port.
+ * @outen: offset of the output enable register.
+ * @inen: offset of the input enable register.
+ * @dat: offset of the data register.
+ */
+struct owl_gpio_port {
+ unsigned int offset;
+ unsigned int pins;
+ unsigned int outen;
+ unsigned int inen;
+ unsigned int dat;
+};
+
+/**
+ * struct owl_pinctrl_soc_data - Actions pin controller driver configuration
+ * @pins: array describing all pins of the pin controller.
+ * @npins: number of entries in @pins.
+ * @functions: array describing all mux functions of this SoC.
+ * @nfunction: number of entries in @functions.
+ * @groups: array describing all pin groups of this SoC.
+ * @ngroups: number of entries in @groups.
+ * @padinfo: array describing the pad info of this SoC.
+ * @ngpios: number of pingroups the driver should expose as GPIOs.
+ * @port: array describing all GPIO ports of this SoC.
+ * @nports: number of GPIO ports in this SoC.
+ */
+struct owl_pinctrl_soc_data {
+ const struct pinctrl_pin_desc *pins;
+ unsigned int npins;
+ const struct owl_pinmux_func *functions;
+ unsigned int nfunctions;
+ const struct owl_pingroup *groups;
+ unsigned int ngroups;
+ const struct owl_padinfo *padinfo;
+ unsigned int ngpios;
+ const struct owl_gpio_port *ports;
+ unsigned int nports;
+};
+
+int owl_pinctrl_probe(struct platform_device *pdev,
+ struct owl_pinctrl_soc_data *soc_data);
+
+#endif /* __PINCTRL_OWL_H__ */