linux.git/drivers/gpio/gpio-eic-sprd.c, branch v5.3.16

gpio: eic: sprd: Fix the incorrect EIC offset when toggling

2019-10-17T20:46:57+00:00

commit e91aafcb51f3c5001ae76c3ee027beb0b8506447 upstream.

When toggling the level trigger to emulate the edge trigger, the
EIC offset is incorrect without adding the corresponding bank index,
thus fix it.

Fixes: 7bf0d7f62282 ("gpio: eic: Add edge trigger emulation for EIC")
Cc: stable@vger.kernel.org
Signed-off-by: Bruce Chen 
Signed-off-by: Baolin Wang 
Signed-off-by: Bartosz Golaszewski 
Signed-off-by: Greg Kroah-Hartman

gpio: eic-sprd: Use devm_platform_ioremap_resource()

2019-06-27T14:56:51+00:00

Use the new helper that wraps the calls to platform_get_resource()
and devm_ioremap_resource() together.

Signed-off-by: Enrico Weigelt, metux IT consult 
Reviewed-by: Baolin Wang 
Signed-off-by: Linus Walleij

gpio: eic: sprd: Fix incorrect irq type setting for the sync EIC

2019-04-11T13:39:48+00:00

When setting sync EIC as IRQ_TYPE_EDGE_BOTH type, we missed to set the
SPRD_EIC_SYNC_INTMODE register to 0, which means detecting edge signals.

Thus this patch fixes the issue.

Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support")
Cc: 
Signed-off-by: Baolin Wang 
Signed-off-by: Linus Walleij

Merge tag 'gpio-v5.1-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux into devel

2019-02-17T20:59:33+00:00

gpio updates for v5.1

- support for a new variant of pca953x
- documentation fix from Wolfram
- some tegra186 name changes
- two minor fixes for madera and altera-a10sr

gpio: sprd: Add missing break in switch statement

2019-02-13T09:39:50+00:00

Fix the following warning by adding a missing break:

drivers/gpio/gpio-eic-sprd.c: In function ‘sprd_eic_irq_set_type’:
drivers/gpio/gpio-eic-sprd.c:403:3: warning: this statement may fall through [-Wimplicit-fallthrough=]
   switch (flow_type) {
   ^~~~~~
drivers/gpio/gpio-eic-sprd.c:435:2: note: here
  default:
  ^~~~~~~

This patch is part of the ongoing efforts to enable
-Wimplicit-fallthrough.

Signed-off-by: Gustavo A. R. Silva 
Reviewed-by: Baolin Wang 
Signed-off-by: Linus Walleij

gpio: sprd: Fix incorrect irq type setting for the async EIC

2019-01-23T16:24:01+00:00

When setting async EIC as IRQ_TYPE_EDGE_BOTH type, we missed to set the
SPRD_EIC_ASYNC_INTMODE register to 0, which means detecting edge signals.

Thus this patch fixes the issue.

Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support")
Cc: 
Signed-off-by: Neo Hou 
Signed-off-by: Baolin Wang 
Signed-off-by: Bartosz Golaszewski

gpio: sprd: Fix the incorrect data register

2019-01-23T16:24:01+00:00

Since differnt type EICs have its own data register to read, thus fix the
incorrect data register.

Fixes: 25518e024e3a ("gpio: Add Spreadtrum EIC driver support")
Cc: 
Signed-off-by: Neo Hou 
Signed-off-by: Baolin Wang 
Signed-off-by: Bartosz Golaszewski

gpio: eic: Add edge trigger emulation for EIC

2018-05-16T12:35:24+00:00

The Spreadtrum debounce EIC and latch EIC can not support edge trigger,
but most GPIO users (like gpio-key driver) only use the edge trigger,
thus the EIC driver need add some support to emulate the edge trigger
to satisfy this requirement.

Signed-off-by: Baolin Wang 
Signed-off-by: Linus Walleij

gpio: Add Spreadtrum EIC driver support

2018-03-27T13:51:17+00:00

The Spreadtrum digital-chip EIC controller has 4 sub-modules: debounce EIC,
latch EIC, async EIC and sync EIC, and each sub-module can has multiple
banks and each bank contains 8 EICs.

Each EIC can only be used as input mode, and has the capability to trigger
interrupts when detecting input signals.

Signed-off-by: Baolin Wang 
Reviewed-by: Andy Shevchenko 
Signed-off-by: Linus Walleij