kernel.git/arch/arm/common/sa1111.c, branch linux-4.14.y

ARM: sa1111: provide to_sa1111_device() macro

2016-09-21T17:52:45Z

Provide a nicer to_sa1111_device macro to convert a struct device to a sa1111_dev. We will need this for drivers when converting them to dev_pm_ops, or removing shutdown methods. Signed-off-by: Russell King

ARM: sa1111: add sa1111_get_irq()

2016-09-20T13:21:08Z

Add a helper function to get the irq number for a device. Signed-off-by: Russell King

ARM: sa1111: clean up duplication in IRQ chip implementation

2016-09-20T13:21:08Z

Clean up the duplication in the IRQ chip implementation - we can compute the register address from the interrupt number rather than duplicating the code for each register. Signed-off-by: Russell King

ARM: sa1111: implement a gpio_chip for SA1111 GPIOs

2016-09-20T13:21:08Z

Add a gpio_chip instance for SA1111 GPIOs. This allows us to use gpiolib to lookup and manipulate SA1111 GPIOs. Signed-off-by: Russell King

ARM: sa1111: move irq cleanup to separate function

2016-09-20T13:21:08Z

Move the SA1111 interrupt cleanup to a separate function, so it can be re-used in the probe error cleanup path. Signed-off-by: Russell King

ARM: sa1111: use devm_clk_get()

2016-09-20T13:21:07Z

Convert sa1111 to use devm_clk_get() to get its clock resource, and strip out the clk_put() calls. This simplifies the error handling a little. Signed-off-by: Russell King

ARM: sa1111: use devm_kzalloc()

2016-09-20T13:21:07Z

Use devm_kzalloc() to allocate our driver data, so we can eliminate its kfree() from the device removal and error cleanup paths. Signed-off-by: Russell King

ARM: sa1111: ensure we only touch RAB bus type devices when removing

2016-09-20T13:21:07Z

When removing a SA1111 device, we try to remove all child devices. However, we must only remove our own RAB bus typed devices from the tree, there may be other devices present which should not be touched. This is necessary before we introduce gpiochip to SA1111 to avoid incorrectly trying to remove the gpiochip device, leading to an oops in __release_resource(). Signed-off-by: Russell King

ARM: sa1111: fix missing clk_disable()

2016-09-12T10:04:05Z

SA1111 forgets to call clk_disable() in the probe error cleanup path. Add the necessary call. Signed-off-by: Russell King

ARM: sa1111: fix pcmcia suspend/resume

2016-09-12T10:04:05Z

SA1111 PCMCIA was broken when PCMCIA switched to using dev_pm_ops for the PCMCIA socket class. PCMCIA used to handle suspend/resume via the socket hosting device, which happened at normal device suspend/resume time. However, the referenced commit changed this: much of the resume now happens much earlier, in the noirq resume handler of dev_pm_ops. However, on SA1111, the PCMCIA device is not accessible as the SA1111 has not been resumed at _noirq time. It's slightly worse than that, because the SA1111 has already been put to sleep at _noirq time, so suspend doesn't work properly. Fix this by converting the core SA1111 code to use dev_pm_ops as well, and performing its own suspend/resume at noirq time. This fixes these errors in the kernel log: pcmcia_socket pcmcia_socket0: time out after reset pcmcia_socket pcmcia_socket1: time out after reset and the resulting lack of PCMCIA cards after a S2RAM cycle. Fixes: d7646f7632549 ("pcmcia: use dev_pm_ops for class pcmcia_socket_class") Signed-off-by: Russell King