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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-27 10:05:51 +0000 |
commit | 5d1646d90e1f2cceb9f0828f4b28318cd0ec7744 (patch) | |
tree | a94efe259b9009378be6d90eb30d2b019d95c194 /drivers/pinctrl/freescale/pinctrl-mxs.h | |
parent | Initial commit. (diff) | |
download | linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.tar.xz linux-5d1646d90e1f2cceb9f0828f4b28318cd0ec7744.zip |
Adding upstream version 5.10.209.upstream/5.10.209
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/pinctrl/freescale/pinctrl-mxs.h')
-rw-r--r-- | drivers/pinctrl/freescale/pinctrl-mxs.h | 84 |
1 files changed, 84 insertions, 0 deletions
diff --git a/drivers/pinctrl/freescale/pinctrl-mxs.h b/drivers/pinctrl/freescale/pinctrl-mxs.h new file mode 100644 index 000000000..ab9f834b0 --- /dev/null +++ b/drivers/pinctrl/freescale/pinctrl-mxs.h @@ -0,0 +1,84 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright 2012 Freescale Semiconductor, Inc. + */ + +#ifndef __PINCTRL_MXS_H +#define __PINCTRL_MXS_H + +#include <linux/platform_device.h> +#include <linux/pinctrl/pinctrl.h> + +#define SET 0x4 +#define CLR 0x8 +#define TOG 0xc + +#define MXS_PINCTRL_PIN(pin) PINCTRL_PIN(pin, #pin) +#define PINID(bank, pin) ((bank) * 32 + (pin)) + +/* + * pinmux-id bit field definitions + * + * bank: 15..12 (4) + * pin: 11..4 (8) + * muxsel: 3..0 (4) + */ +#define MUXID_TO_PINID(m) PINID((m) >> 12 & 0xf, (m) >> 4 & 0xff) +#define MUXID_TO_MUXSEL(m) ((m) & 0xf) + +#define PINID_TO_BANK(p) ((p) >> 5) +#define PINID_TO_PIN(p) ((p) % 32) + +/* + * pin config bit field definitions + * + * pull-up: 6..5 (2) + * voltage: 4..3 (2) + * mA: 2..0 (3) + * + * MSB of each field is presence bit for the config. + */ +#define PULL_PRESENT (1 << 6) +#define PULL_SHIFT 5 +#define VOL_PRESENT (1 << 4) +#define VOL_SHIFT 3 +#define MA_PRESENT (1 << 2) +#define MA_SHIFT 0 +#define CONFIG_TO_PULL(c) ((c) >> PULL_SHIFT & 0x1) +#define CONFIG_TO_VOL(c) ((c) >> VOL_SHIFT & 0x1) +#define CONFIG_TO_MA(c) ((c) >> MA_SHIFT & 0x3) + +struct mxs_function { + const char *name; + const char **groups; + unsigned ngroups; +}; + +struct mxs_group { + const char *name; + unsigned int *pins; + unsigned npins; + u8 *muxsel; + u8 config; +}; + +struct mxs_regs { + u16 muxsel; + u16 drive; + u16 pull; +}; + +struct mxs_pinctrl_soc_data { + const struct mxs_regs *regs; + const struct pinctrl_pin_desc *pins; + unsigned npins; + struct mxs_function *functions; + unsigned nfunctions; + struct mxs_group *groups; + unsigned ngroups; +}; + +int mxs_pinctrl_probe(struct platform_device *pdev, + struct mxs_pinctrl_soc_data *soc); + +#endif /* __PINCTRL_MXS_H */ |