diff options
Diffstat (limited to 'target/linux/ath79/patches-5.15/939-mikrotik-rb91x.patch')
| -rw-r--r-- | target/linux/ath79/patches-5.15/939-mikrotik-rb91x.patch | 33 |
1 files changed, 31 insertions, 2 deletions
diff --git a/target/linux/ath79/patches-5.15/939-mikrotik-rb91x.patch b/target/linux/ath79/patches-5.15/939-mikrotik-rb91x.patch index 4a852886bf..459b6ff9b1 100644 --- a/target/linux/ath79/patches-5.15/939-mikrotik-rb91x.patch +++ b/target/linux/ath79/patches-5.15/939-mikrotik-rb91x.patch @@ -1,3 +1,32 @@ +From: Denis Kalashnikov <denis281089@gmail.com> +Subject: [PATCH] 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. + +Submitted-by: Denis Kalashnikov <denis281089@gmail.com> +Reviewed-by: Sergey Ryazanov <ryazanov.s.a@gmail.com> +Tested-by: Koen Vandeputte <koen.vandeputte@ncentric.com> +--- + drivers/gpio/Kconfig | 11 +++++++++++ + drivers/gpio/Makefile | 2 ++ + drivers/mtd/nand/raw/Kconfig | 6 ++++++ + drivers/mtd/nand/raw/Makefile | 1 + + 7 files changed, 20 insertions(+) + --- a/drivers/gpio/Kconfig +++ b/drivers/gpio/Kconfig @@ -353,6 +353,13 @@ config GPIO_IXP4XX @@ -15,8 +44,8 @@ tristate "Xylon LogiCVC GPIO support" depends on MFD_SYSCON && OF @@ -529,6 +536,10 @@ config GPIO_ROCKCHIP - help - Say yes here to support GPIO on Rockchip SoCs. + help + Say yes here to support GPIO on Rockchip SoCs. +config GPIO_RB91X_KEY + tristate "MikroTik RB91x board series reset key support" |