The pinctrl-wpcm450 driver relies on MFD_SYSCON functionality in order
to find some of its MMIO registers. Select MFD_SYSCON from
PINCTRL_WPCM450 to ensure that it's enabled.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20230412185049.3782842-1-j.neuschaefer@gmx.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
If OF is not set, bulding fails:
drivers/pinctrl/nuvoton/pinctrl-wpcm450.o: In function `wpcm450_dt_node_to_map':
pinctrl-wpcm450.c:(.text+0x404): undefined reference to `pinconf_generic_dt_node_to_map'
Make PINCTRL_WPCM450 depends on OF to fix this.
Fixes: a1d1e0e3d8 ("pinctrl: nuvoton: Add driver for WPCM450")
Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: Zheng Bin <zhengbin13@huawei.com>
Link: https://lore.kernel.org/r/20220325074450.3228840-1-zhengbin13@huawei.com
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
CONFIG_GENERIC_PINCTRL_GROUPS must be selected in order for
struct group_desc to be defined in pinctrl/core.h.
Add the missing select line to CONFIG_PINCTRL_WPCM450.
Reported-by: kernel test robot <lkp@intel.com>
Fixes: a1d1e0e3d8 ("pinctrl: nuvoton: Add driver for WPCM450")
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Link: https://lore.kernel.org/r/20220317114413.1418484-1-j.neuschaefer@gmx.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This driver is based on the one for NPCM7xx, because the WPCM450 is a
predecessor of those SoCs. Notable differences:
- On WPCM450, the GPIO registers are not organized in multiple banks,
but rather placed continually into the same register block. This
affects how register offsets are computed.
- Pinmux nodes can explicitly select GPIO mode, whereas in the npcm7xx
driver, this happens automatically when a GPIO is requested.
Some functionality implemented in the hardware was (for now) left unused
in the driver, specifically blinking and pull-up/down.
Signed-off-by: Jonathan Neuschäfer <j.neuschaefer@gmx.net>
Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/r/20220129115228.2257310-6-j.neuschaefer@gmx.net
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add SPDX license identifiers to all Make/Kconfig files which:
- Have no license information of any form
These files fall under the project license, GPL v2 only. The resulting SPDX
license identifier is:
GPL-2.0-only
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Jonathan Neuschäfer