For SoC's which lacks EINT support, U16_MAX is assigned to both eint_m
and eint_n through macro NO_EINT_SUPPORT. This will generate integer
overflow warning because eint_m is declared as u8 type. Hence modify
the eint_m type to u16.
Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Removing the linux/gpio.h include means we no longer have a declaration
of gpiochip_lock_as_irq() when CONFIG_GPIOLIB is disabled:
drivers/pinctrl/mediatek/mtk-eint.c: In function 'mtk_eint_irq_request_resources':
drivers/pinctrl/mediatek/mtk-eint.c:247:8: error: implicit declaration of function 'gpiochip_lock_as_irq'; did you mean 'spin_lock_irq'? [-Werror=implicit-function-declaration]
drivers/pinctrl/mediatek/mtk-eint.c: In function 'mtk_eint_irq_release_resources':
drivers/pinctrl/mediatek/mtk-eint.c:272:2: error: implicit declaration of function 'gpiochip_unlock_as_irq'; did you mean 'spin_unlock_irq'? [-Werror=implicit-function-declaration]
Select it explictly instead.
Fixes: 1c5fb66afa ("pinctrl: Include <linux/gpio/driver.h> nothing else")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
mtk_eint_set_debounce and mtk_eint_find_irq are defined as stub functions
in a header file, but without marking them as 'static inline', we get
a copy for each file that includes the header:
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.o: In function `mtk_eint_set_debounce':
pinctrl-mtk-common-v2.c:(.text+0x134): multiple definition of `mtk_eint_set_debounce'
drivers/pinctrl/mediatek/pinctrl-moore.o:pinctrl-moore.c:(.text+0x7d0): first defined here
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.o: In function `mtk_eint_find_irq':
pinctrl-mtk-common-v2.c:(.text+0x13c): multiple definition of `mtk_eint_find_irq'
Fixes: e46df235b4 ("pinctrl: mediatek: refactor EINT related code for all MediaTek pinctrl can fit")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Currently, the check on desc->eint.eint_n == EINT_NA is always false
because this is comparing a u16 to -1 which can never be true. Fix
this by casting EINT_NA to u16.
Detected by CoverityScan, CID#1473610 ("Operands don't affect result")
Fixes: fb5fa8dc15 ("pinctrl: mediatek: extend struct mtk_pin_desc to pinctrl-mtk-common-v2.c")
Signed-off-by: Colin Ian King <colin.king@canonical.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add NO_EINT_SUPPORT back to pinctrl-mtk-common-v2.h as the alias of
EINT_NA to indicate that some pin not capable of being controlled as eint
and that is required by pinctrl-paris based driver as old
pinctrl-mtk-common.h already had.
Signed-off-by: Mars Cheng <mars.cheng@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In case of error, the function devm_kmalloc_array() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.
Fixes: b7d7f9eeca ("pinctrl: mediatek: extend struct mtk_pin_desc which per-pin driver depends on")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Fixes the following sparse warning:
drivers/pinctrl/mediatek/pinctrl-mtk-common-v2.c:37:29: warning:
symbol 'mtk_drive' was not declared. Should it be static?
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
In case of error, the function devm_kmalloc_array() returns NULL pointer
not ERR_PTR(). The IS_ERR() test in the return value check should be
replaced with NULL test.
Fixes: 805250982b ("pinctrl: mediatek: add pinctrl-paris that implements the vendor dt-bindings")
Signed-off-by: Wei Yongjun <weiyongjun1@huawei.com>
Acked-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Just add eint support to MT8183 pinctrl driver as usual as
happens on the other SoCs.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Almost all MediaTek SoCs apply the exact same logic to build eint, so move
the common functions into pinctrl-mtk-common-v2.c to allow each new pinctrl
driver to reuse them. Also, add a protection checker on hw->soc->eint_hw to
avoid invalid memory access when there's certain SoC not to define its
eint_hw properly in the code flow.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Add pinctrl-paris core that implements vendor dt-binding which MediaTek
tablet, box and smartphone-based SoCs such as MT81xx, MT27xx, and MT67xx
SoCs really want to depend on. The driver is just completely rewritten
according to pinctrl-mtk-common.c but uses the new logic from
pinctrl-mtk-common-v2.c to have an elegant way to support new SoCs in the
future.
Signed-off-by: Zhiyong Tao <zhiyong.tao@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Because the pincrl-mtk-common.c is an implementation for per-pin binding,
its pin descriptor includes more information than pinctrl-mtk-common-v2
so far can support. So, we complement these data before writing a driver
using pincrl-mtk-common-v2.c for per-pin binding. By the way, the size of
struct mtk_pin_desc would be larger than struct pinctrl_pin_desc can hold,
so it's necessary to have a copy before the pins information is being
registered into the core.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
It's usual and not an error for there's some register not supported by a
certain SoC or a pin so that in the case we have to adjust the message to
print and the error code to get rid of unnecessary false alarm.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Certain SoC own multiple register base for accessing each pin groups,
it's easy to be done with extend struct mtk_pin_field_calc to support
the kind of SoC such as MT8183.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
all use pin descriptor instead in pinctrl-mtk-common-v2.c for the
consistency and extensibility.
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Adding MT7623 pinctrl driver based on generic pinctrl binding, that is
good example and demonstrates how to port any other MediaTek SoCs
pinctrl-moore core when people really would like to use the generic
pinctrl binding to support these MediaTek SoCs.
Signed-off-by: Ryder Lee <ryder.lee@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Certain SoCs have to program an extra PULLEN, PULLSEL register to configure
bias related function so that we add it in the existing path.
Signed-off-by: Ryder.Lee <ryder.lee@mediatek.com>
Signed-off-by: Sean Wang <sean.wang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Manivannan Sadhasivam
Arnd Bergmann
Colin Ian King
Mars Cheng
ZH Chen
Sean Wang
Wei Yongjun
Linus Walleij
Zhiyong Tao