diff options
| author | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2022-06-05 18:05:05 +0200 |
|---|---|---|
| committer | Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> | 2022-06-07 08:41:23 +0200 |
| commit | 3d501682329a433843d26116fe13a4bbad963104 (patch) | |
| tree | 294ef5b64e33d6f71fd63a85cab3829d98b76ce6 /arch/arm64/boot/dts/exynos/exynos-pinctrl.h | |
| parent | 2164784a4b2700d1929854b5ec6b2169ff449814 (diff) | |
arm64: dts: exynos: use local header for pinctrl register values
The DTS uses hardware register values directly in pin controller pin
configuration. These are not some IDs or other abstraction layer but
raw numbers used in the registers.
These numbers were previously put in the bindings header to avoid code
duplication and to provide some context meaning (name), but they do not
fit the purpose of bindings.
Store the constants in a header next to DTS and use them instead of
bindings.
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Tested-by: Chanho Park <chanho61.park@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20220605160508.134075-6-krzysztof.kozlowski@linaro.org
Diffstat (limited to 'arch/arm64/boot/dts/exynos/exynos-pinctrl.h')
| -rw-r--r-- | arch/arm64/boot/dts/exynos/exynos-pinctrl.h | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/arch/arm64/boot/dts/exynos/exynos-pinctrl.h b/arch/arm64/boot/dts/exynos/exynos-pinctrl.h new file mode 100644 index 000000000000..7dd94a9b3652 --- /dev/null +++ b/arch/arm64/boot/dts/exynos/exynos-pinctrl.h @@ -0,0 +1,79 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Samsung Exynos DTS pinctrl constants + * + * Copyright (c) 2016 Samsung Electronics Co., Ltd. + * http://www.samsung.com + * Copyright (c) 2022 Linaro Ltd + * Author: Krzysztof Kozlowski <krzk@kernel.org> + */ + +#ifndef __DTS_ARM64_SAMSUNG_EXYNOS_PINCTRL_H__ +#define __DTS_ARM64_SAMSUNG_EXYNOS_PINCTRL_H__ + +#define EXYNOS_PIN_PULL_NONE 0 +#define EXYNOS_PIN_PULL_DOWN 1 +#define EXYNOS_PIN_PULL_UP 3 + +/* Pin function in power down mode */ +#define EXYNOS_PIN_PDN_OUT0 0 +#define EXYNOS_PIN_PDN_OUT1 1 +#define EXYNOS_PIN_PDN_INPUT 2 +#define EXYNOS_PIN_PDN_PREV 3 + +/* + * Drive strengths for Exynos5410, Exynos542x, Exynos5800, Exynos7885, Exynos850 + * (except GPIO_HSI block), ExynosAutov9 (FSI0, PERIC1) + */ +#define EXYNOS5420_PIN_DRV_LV1 0 +#define EXYNOS5420_PIN_DRV_LV2 1 +#define EXYNOS5420_PIN_DRV_LV3 2 +#define EXYNOS5420_PIN_DRV_LV4 3 + +/* Drive strengths for Exynos5433 */ +#define EXYNOS5433_PIN_DRV_FAST_SR1 0 +#define EXYNOS5433_PIN_DRV_FAST_SR2 1 +#define EXYNOS5433_PIN_DRV_FAST_SR3 2 +#define EXYNOS5433_PIN_DRV_FAST_SR4 3 +#define EXYNOS5433_PIN_DRV_FAST_SR5 4 +#define EXYNOS5433_PIN_DRV_FAST_SR6 5 +#define EXYNOS5433_PIN_DRV_SLOW_SR1 8 +#define EXYNOS5433_PIN_DRV_SLOW_SR2 9 +#define EXYNOS5433_PIN_DRV_SLOW_SR3 0xa +#define EXYNOS5433_PIN_DRV_SLOW_SR4 0xb +#define EXYNOS5433_PIN_DRV_SLOW_SR5 0xc +#define EXYNOS5433_PIN_DRV_SLOW_SR6 0xf + +/* Drive strengths for Exynos7 (except FSYS1) */ +#define EXYNOS7_PIN_DRV_LV1 0 +#define EXYNOS7_PIN_DRV_LV2 2 +#define EXYNOS7_PIN_DRV_LV3 1 +#define EXYNOS7_PIN_DRV_LV4 3 + +/* Drive strengths for Exynos7 FSYS1 block */ +#define EXYNOS7_FSYS1_PIN_DRV_LV1 0 +#define EXYNOS7_FSYS1_PIN_DRV_LV2 4 +#define EXYNOS7_FSYS1_PIN_DRV_LV3 2 +#define EXYNOS7_FSYS1_PIN_DRV_LV4 6 +#define EXYNOS7_FSYS1_PIN_DRV_LV5 1 +#define EXYNOS7_FSYS1_PIN_DRV_LV6 5 + +/* Drive strengths for Exynos850 GPIO_HSI block */ +#define EXYNOS850_HSI_PIN_DRV_LV1 0 /* 1x */ +#define EXYNOS850_HSI_PIN_DRV_LV1_5 1 /* 1.5x */ +#define EXYNOS850_HSI_PIN_DRV_LV2 2 /* 2x */ +#define EXYNOS850_HSI_PIN_DRV_LV2_5 3 /* 2.5x */ +#define EXYNOS850_HSI_PIN_DRV_LV3 4 /* 3x */ +#define EXYNOS850_HSI_PIN_DRV_LV4 5 /* 4x */ + +#define EXYNOS_PIN_FUNC_INPUT 0 +#define EXYNOS_PIN_FUNC_OUTPUT 1 +#define EXYNOS_PIN_FUNC_2 2 +#define EXYNOS_PIN_FUNC_3 3 +#define EXYNOS_PIN_FUNC_4 4 +#define EXYNOS_PIN_FUNC_5 5 +#define EXYNOS_PIN_FUNC_6 6 +#define EXYNOS_PIN_FUNC_EINT 0xf +#define EXYNOS_PIN_FUNC_F EXYNOS_PIN_FUNC_EINT + +#endif /* __DTS_ARM64_SAMSUNG_EXYNOS_PINCTRL_H__ */ |