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| author | Denis Kalashnikov <denis281089@gmail.com> | 2022-01-19 13:25:05 +0300 |
|---|---|---|
| committer | Koen Vandeputte <koen.vandeputte@ncentric.com> | 2022-01-19 16:40:12 +0100 |
| commit | ec85e48a113514502563a06c5d0278a57a8b6b86 (patch) | |
| tree | c25f6fa403e8fa36adb342fa74aca77fe09e7ab7 /target/linux/ath79/patches-5.10 | |
| parent | 522e414dcbe478fa150a49b743e15999026bf774 (diff) | |
| download | upstream-ec85e48a113514502563a06c5d0278a57a8b6b86.tar.gz upstream-ec85e48a113514502563a06c5d0278a57a8b6b86.tar.bz2 upstream-ec85e48a113514502563a06c5d0278a57a8b6b86.zip | |
ath79: add support for reset key on MikroTik RB912UAG-2HPnD
On MikroTik RB91x board series a reset key shares SoC gpio
line #15 with NAND ALE and NAND IO7. So we need a custom
gpio driver to manage this non-trivial connection schema.
Also rb91x-nand needs to have an ability to disable a polling
of the key while it works with NAND.
While we've been integrating rb91x-key into a firmware, we've
figured out that:
* In the gpio-latch driver we need to add a "cansleep" suffix to
several gpiolib calls,
* When gpio-latch and rb91x-nand fail to get a gpio and an error
is -EPROBE_DEFER, they shouldn't report about this, since this
actually is not an error and occurs when the gpio-latch probe
function is called before the rb91x-key probe.
We fix these related things here too.
Signed-off-by: Denis Kalashnikov <denis281089@gmail.com>
Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com>
Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com>
Diffstat (limited to 'target/linux/ath79/patches-5.10')
| -rw-r--r-- | target/linux/ath79/patches-5.10/939-mikrotik-rb91x.patch | 19 |
1 files changed, 19 insertions, 0 deletions
diff --git a/target/linux/ath79/patches-5.10/939-mikrotik-rb91x.patch b/target/linux/ath79/patches-5.10/939-mikrotik-rb91x.patch index 5bbab93c51..4f4344b40f 100644 --- a/target/linux/ath79/patches-5.10/939-mikrotik-rb91x.patch +++ b/target/linux/ath79/patches-5.10/939-mikrotik-rb91x.patch @@ -14,6 +14,17 @@ config GPIO_LOGICVC tristate "Xylon LogiCVC GPIO support" depends on MFD_SYSCON && OF +@@ -495,6 +502,10 @@ config GPIO_REG + A 32-bit single register GPIO fixed in/out implementation. This + can be used to represent any register as a set of GPIO signals. + ++config GPIO_RB91X_KEY ++ tristate "MikroTik RB91x board series reset key support" ++ depends on ATH79 ++ + config GPIO_SAMA5D2_PIOBU + tristate "SAMA5D2 PIOBU GPIO support" + depends on MFD_SYSCON --- a/drivers/gpio/Makefile +++ b/drivers/gpio/Makefile @@ -72,6 +72,7 @@ obj-$(CONFIG_GPIO_IT87) += gpio-it87.o @@ -24,6 +35,14 @@ obj-$(CONFIG_GPIO_LOGICVC) += gpio-logicvc.o obj-$(CONFIG_GPIO_LOONGSON1) += gpio-loongson1.o obj-$(CONFIG_GPIO_LOONGSON) += gpio-loongson.o +@@ -121,6 +122,7 @@ obj-$(CONFIG_GPIO_PMIC_EIC_SPRD) += gpio + obj-$(CONFIG_GPIO_PXA) += gpio-pxa.o + obj-$(CONFIG_GPIO_RASPBERRYPI_EXP) += gpio-raspberrypi-exp.o + obj-$(CONFIG_GPIO_RB4XX) += gpio-rb4xx.o ++obj-$(CONFIG_GPIO_RB91X_KEY) += gpio-rb91x-key.o + obj-$(CONFIG_GPIO_RC5T583) += gpio-rc5t583.o + obj-$(CONFIG_GPIO_RCAR) += gpio-rcar.o + obj-$(CONFIG_GPIO_RDA) += gpio-rda.o --- a/drivers/mtd/nand/raw/Kconfig +++ b/drivers/mtd/nand/raw/Kconfig @@ -571,4 +571,10 @@ config MTD_NAND_RB4XX |