dt-bindings: pinctrl: samsung: deprecate header with register constants

For convenience (less code duplication, some meaning added to raw
number), the pin controller pin configuration register values
were defined in the bindings header. These are not some IDs or other
abstraction layer but raw numbers used in the registers

These constants do not fit the purpose of bindings. They do not provide
any abstraction, any hardware and driver independent ID. With minor
exceptions, the Linux drivers actually do not use the bindings header at
all.

All of the constants were moved already to headers local to DTS
(residing in DTS directory) and to Samsung pinctrl driver (where
applicable), so remove any references to the bindings header and add a
warning tha tit is deprecated.

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Chanho Park <chanho61.park@samsung.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Link: https://lore.kernel.org/r/20220816133016.77553-3-krzysztof.kozlowski@linaro.org

dt-bindings: pinctrl: samsung: Add pin drive definitions for Exynos850

All Exynos850 GPIO blocks can use EXYNOS5420_PIN_DRV* definitions,
except GPIO_HSI block. Add pin drive strength definitions for GPIO_HSI
block correspondingly.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Acked-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/20211217161549.24836-6-semen.protsenko@linaro.org
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@canonical.com>

dt-bindings: pinctrl: samsung: Add SPDX license identifier

Replace GPL license statement with SPDX license identifier (GPL-2.0).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

pinctrl: samsung: dt-bindings: Use better name for external interrupt function

On Exynos, 0xf is always used as value of external interrupt in pin mux
function thus a more descriptive macro name can be used.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

pinctrl: dt-bindings: samsung: Add Exynos7 specific pinctrl macro definitions

Exynos7 SoC pinctrl configurations are similar to existing Exynos4/5 except
for FSYS1 pinctrl drive strengths. So adding Exynos7 specific FSYS1 blocks
pinctrl driver strength related macros which will be used in Exynos7
DTSi files.

Signed-off-by: Pankaj Dubey <pankaj.dubey@samsung.com>
Reviewed-by: Alim Akhtar <alim.akhtar@samsung.com>
Acked-by: Sylwester Nawrocki <s.nawrocki@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

pinctrl: dt-bindings: samsung: add drive strength macros for Exynos5433

Commit 5db7e3bb87df ("pinctrl: dt-bindings: samsung: Add header with
values used for configuration") has added a header file for defining the
pinctrl values in order to avoid hardcoded settings in the Exynos
DTS related files.

Extend samsung.h to the Exynos5433 for drive strength values
which are strictly related to the particular SoC and may defer
from others.

Signed-off-by: Andi Shyti <andi.shyti@samsung.com>
Reviewed-by: Chanwoo Choi <cw00.choi@samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

pinctrl: dt-bindings: samsung: Add header with values used for configuration

Hard-coded pinctrl configuration values are scattered through DTS files.
The numbers are difficult to decode by human, especially without the
datasheet. Additionally the drive strength differs between S3C64xx,
S5PV210 and Exynos SoC families increasing the confusion.

The header will help making this more readable and maintainable.

Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Reviewed-by: Javier Martinez Canillas <javier@osg.samsung.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>