linux-toradex.git/drivers/pinctrl/sunxi, branch v5.11-rc2

pinctrl: sunxi: Always call chained_irq_{enter, exit} in sunxi_pinctrl_irq_handler

2020-11-24T08:41:29+00:00

It is found on many allwinner soc that there is a low probability that
the interrupt status cannot be read in sunxi_pinctrl_irq_handler. This
will cause the interrupt status of a gpio bank to always be active on
gic, preventing gic from responding to other spi interrupts correctly.

So we should call the chained_irq_* each time enter sunxi_pinctrl_irq_handler().

Signed-off-by: Yangtao Li 
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/85263ce8b058e80cea25c6ad6383eb256ce96cc8.1604988979.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij

pinctrl: sunxi: Mark the irq bank not found in sunxi_pinctrl_irq_handler() with WARN_ON

2020-11-24T08:40:54+00:00

The interrupt descriptor cannot be found in the interrupt processing
function, and this situation cannot happen when the system is running
normally. It doesn't seem right to return directly to the status of not
handling gic. In this case, it must be a bug, let's mark it with
WARN_ON.

Signed-off-by: Yangtao Li 
Link: https://lore.kernel.org/r/470ebae22fc5434ad5409c4f6e29255467b3cef6.1604988979.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij

pinctrl: sunxi: fix irq bank map for the Allwinner A100 pin controller

2020-11-24T08:40:03+00:00

A100's pin starts with PB, so it should start with 1.

Fixes: 473436e7647d6 ("pinctrl: sunxi: add support for the Allwinner A100 pin controller")
Signed-off-by: Yangtao Li 
Link: https://lore.kernel.org/r/9db51667bf9065be55beafd56e5c319e3bbe8310.1604988979.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij

pinctrl: sunxi: add support for the Allwinner A100 pin controller

2020-09-12T10:35:42+00:00

This commit introduces support for the pin controller on A100.

Signed-off-by: Yangtao Li 
Acked-by: Maxime Ripard 
Link: https://lore.kernel.org/r/4e331a2ed4a30c883df6157bc5c52bb686aa8e0d.1595572867.git.frank@allwinnertech.com
Signed-off-by: Linus Walleij

pinctrl: sunxi: handle probe defferal

2020-04-16T08:23:02+00:00

When checking the logs on my sun8i-a33-olinuxino I saw:
sun8i-a23-r-pinctrl 1f02c00.pinctrl: Reset controller missing
but this driver was working after.
This message is just here because the reset controller was still not probed.
So don't say anything if the return code say to wait.

Signed-off-by: Corentin Labbe 
Link: https://lore.kernel.org/r/1585818532-23051-1-git-send-email-clabbe@baylibre.com
Acked-by: Maxime Ripard 
Signed-off-by: Linus Walleij

pinctrl: sunxi: Mask non-wakeup IRQs on suspend

2020-02-21T14:16:08+00:00

The pin controller hardware does not distinguish IRQs intended for
wakeup from other IRQs, so we must mask non-wakeup IRQs in software to
prevent inadvertent wakeups. This is accomplished at the irqchip level
via the IRQCHIP_MASK_ON_SUSPEND flag.

Signed-off-by: Samuel Holland 
Link: https://lore.kernel.org/r/20200117213340.47714-2-samuel@sholland.org
Acked-by: Maxime Ripard 
Signed-off-by: Linus Walleij

pinctrl: sunxi: Forward calls to irq_set_irq_wake

2020-02-21T14:14:24+00:00

The pinctrl irqchip may be connected to an irqchip that implements the
.irq_set_wake callback, such as the R_INTC on A31 and newer sunxi SoCs.
In order for GPIOs to be able to trigger wakeup, the IRQ from the
pinctrl to the upper irqchip must also be enabled for wakeup. Since the
kernel's IRQ core already manages the "wake_depth" of each IRQ, no
additional accounting is needed in the pinctrl driver.

Signed-off-by: Samuel Holland 
Link: https://lore.kernel.org/r/20200117213340.47714-1-samuel@sholland.org
Acked-by: Maxime Ripard 
Signed-off-by: Linus Walleij

pinctrl: sunxi: sun50i-h5 use platform_irq_count

2020-01-07T08:55:33+00:00

platform_irq_count() is the more generic way (independent of
device trees) to determine the count of available interrupts. So
use this instead.

As platform_irq_count() might return an error code (which
of_irq_count doesn't) some additional handling is necessary.

Signed-off-by: Peng Fan 
Link: https://lore.kernel.org/r/1576672860-14420-2-git-send-email-peng.fan@nxp.com
Signed-off-by: Linus Walleij

pinctrl: use devm_platform_ioremap_resource() to simplify code

2019-11-05T14:33:40+00:00

devm_platform_ioremap_resource() internally have platform_get_resource()
and devm_ioremap_resource() in it. So instead of calling them separately
use devm_platform_ioremap_resource() directly.

Signed-off-by: YueHaibing 
Acked-by: Thierry Reding 
Acked-by: Neil Armstrong 
Acked-by: Manivannan Sadhasivam 
Acked-by: Jesper Nilsson 
Reviewed-by: Bjorn Andersson 
Link: https://lore.kernel.org/r/20191104142654.39256-1-yuehaibing@huawei.com
Signed-off-by: Linus Walleij

pinctrl: sunxi: v3s: introduce support for V3

2019-08-05T10:35:29+00:00

Introduce the GPIO pins that is only available on V3 (not on V3s) to the
V3s pinctrl driver.

Signed-off-by: Icenowy Zheng 
Acked-by: Maxime Ripard 

Link: https://lore.kernel.org/r/20190728031227.49140-2-icenowy@aosc.io
Signed-off-by: Linus Walleij