openwrt/target/linux/ath79/patches-5.15/939-mikrotik-rb91x.patch
Hauke Mehrtens bad01d4806 kernel: bump 5.15 to 5.15.165
Removed because they are upstream:
   generic/pending-5.15/110-v6.3-0001-spidev-Add-Silicon-Labs-EM3581-device-compatible.patch
   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=bff165a3993683daddf3f00563960e7675966f91

   ipq807x/patches-5.15/0004-v5.16-arm64-dts-qcom-msm8996-Move-clock-cells-to-QMP-PHY-c.patch
   https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=32f0e52f16d45d743b473659329f93d4a27c68bf

Manually adapted:
   bcm27xx/patches-5.15/950-0040-spi-spidev-Completely-disable-the-spidev-warning.patch
   bcm27xx/patches-5.15/950-0578-spi-spidev-Restore-loading-from-Device-Tree.patch
   generic/pending-5.15/110-v6.3-0002-spidev-Add-Silicon-Labs-SI3210-device-compatible.patch

Adapt kernel configuration for newly added option
CONFIG_ARM64_ERRATUM_3194386.

The leddev_list_lock attribute changed from rwlock_t to spinlock_t in:
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=linux-5.15.y&id=590304b798a3b89e716b6b564f8ad14bc9373d93

Link: https://github.com/openwrt/openwrt/pull/16366
Signed-off-by: Hauke Mehrtens <hauke@hauke-m.de>
2024-09-14 16:51:13 +02:00

98 lines
3.6 KiB
Diff

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
IXP4xx series of chips.
If unsure, say N.
+
+config GPIO_LATCH
+ tristate "MikroTik RouterBOARD GPIO latch support"
+ depends on ATH79
+ help
+ GPIO driver for latch on some MikroTik RouterBOARDs.
+
config GPIO_LOGICVC
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.
+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
@@ -75,6 +75,7 @@ obj-$(CONFIG_GPIO_IT87) += gpio-it87.o
obj-$(CONFIG_GPIO_IXP4XX) += gpio-ixp4xx.o
obj-$(CONFIG_GPIO_JANZ_TTL) += gpio-janz-ttl.o
obj-$(CONFIG_GPIO_KEMPLD) += gpio-kempld.o
+obj-$(CONFIG_GPIO_LATCH) += gpio-latch.o
obj-$(CONFIG_GPIO_LOGICVC) += gpio-logicvc.o
obj-$(CONFIG_GPIO_LOONGSON1) += gpio-loongson1.o
obj-$(CONFIG_GPIO_LOONGSON) += gpio-loongson.o
@@ -123,6 +124,7 @@ 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
@@ -569,4 +569,10 @@ config MTD_NAND_RB4XX
Enables support for the NAND flash chip on Mikrotik Routerboard
RB4xx series.
+config MTD_NAND_RB91X
+ tristate "MikroTik RB91x NAND driver support"
+ depends on ATH79 && MTD_RAW_NAND
+ help
+ Enables support for the NAND flash chip on MikroTik RB91x series.
+
endif # MTD_RAW_NAND
--- a/drivers/mtd/nand/raw/Makefile
+++ b/drivers/mtd/nand/raw/Makefile
@@ -60,6 +60,7 @@ obj-$(CONFIG_MTD_NAND_ROCKCHIP) += rock
obj-$(CONFIG_MTD_NAND_PL35X) += pl35x-nand-controller.o
obj-$(CONFIG_MTD_NAND_AR934X) += ar934x_nand.o
obj-$(CONFIG_MTD_NAND_RB4XX) += nand_rb4xx.o
+obj-$(CONFIG_MTD_NAND_RB91X) += rb91x_nand.o
nand-objs := nand_base.o nand_legacy.o nand_bbt.o nand_timings.o nand_ids.o
nand-objs += nand_onfi.o