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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /drivers/pinctrl/vt8500/pinctrl-wmt.h | |
parent | Initial commit. (diff) | |
download | linux-upstream.tar.xz linux-upstream.zip |
Adding upstream version 6.1.76.upstream/6.1.76upstream
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/pinctrl/vt8500/pinctrl-wmt.h')
-rw-r--r-- | drivers/pinctrl/vt8500/pinctrl-wmt.h | 70 |
1 files changed, 70 insertions, 0 deletions
diff --git a/drivers/pinctrl/vt8500/pinctrl-wmt.h b/drivers/pinctrl/vt8500/pinctrl-wmt.h new file mode 100644 index 000000000..6233115c9 --- /dev/null +++ b/drivers/pinctrl/vt8500/pinctrl-wmt.h @@ -0,0 +1,70 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Pinctrl driver for the Wondermedia SoC's + * + * Copyright (c) 2013 Tony Prisk <linux@prisktech.co.nz> + */ + +#include <linux/gpio/driver.h> + +/* VT8500 has no enable register in the extgpio bank. */ +#define NO_REG 0xFFFF + +#define WMT_PINCTRL_BANK(__en, __dir, __dout, __din, __pen, __pcfg) \ +{ \ + .reg_en = __en, \ + .reg_dir = __dir, \ + .reg_data_out = __dout, \ + .reg_data_in = __din, \ + .reg_pull_en = __pen, \ + .reg_pull_cfg = __pcfg, \ +} + +/* Encode/decode the bank/bit pairs into a pin value */ +#define WMT_PIN(__bank, __offset) ((__bank << 5) | __offset) +#define WMT_BANK_FROM_PIN(__pin) (__pin >> 5) +#define WMT_BIT_FROM_PIN(__pin) (__pin & 0x1f) + +#define WMT_GROUP(__name, __data) \ +{ \ + .name = __name, \ + .pins = __data, \ + .npins = ARRAY_SIZE(__data), \ +} + +struct wmt_pinctrl_bank_registers { + u32 reg_en; + u32 reg_dir; + u32 reg_data_out; + u32 reg_data_in; + + u32 reg_pull_en; + u32 reg_pull_cfg; +}; + +struct wmt_pinctrl_group { + const char *name; + const unsigned int *pins; + const unsigned npins; +}; + +struct wmt_pinctrl_data { + struct device *dev; + struct pinctrl_dev *pctl_dev; + + /* must be initialized before calling wmt_pinctrl_probe */ + void __iomem *base; + const struct wmt_pinctrl_bank_registers *banks; + const struct pinctrl_pin_desc *pins; + const char * const *groups; + + u32 nbanks; + u32 npins; + u32 ngroups; + + struct gpio_chip gpio_chip; + struct pinctrl_gpio_range gpio_range; +}; + +int wmt_pinctrl_probe(struct platform_device *pdev, + struct wmt_pinctrl_data *data); |