22b9f99b87
Drop patch that was superseded upstream: ramips/0036-mtd-fix-cfi-cmdset-0002-erase-status-check.patch Drop upstreamed patches: - apm821xx/020-0001-crypto-crypto4xx-remove-bad-list_del.patch - apm821xx/020-0011-crypto-crypto4xx-fix-crypto4xx_build_pdr-crypto4xx_b.patch - ath79/0011-MIPS-ath79-fix-register-address-in-ath79_ddr_wb_flus.patch - brcm63xx/001-4.15-08-bcm63xx_enet-correct-clock-usage.patch - brcm63xx/001-4.15-09-bcm63xx_enet-do-not-write-to-random-DMA-channel-on-B.patch - generic/backport/080-net-convert-sock.sk_wmem_alloc-from-atomic_t-to-refc.patch - generic/pending/170-usb-dwc2-Fix-DMA-alignment-to-start-at-allocated-boun.patch - generic/pending/900-gen_stats-fix-netlink-stats-padding.patch In 4.14.55, a patch was introduced that breaks ext4 images in some cases. The newly introduced patch backport-4.14/500-ext4-fix-check-to-prevent-initializing-reserved-inod.patch addresses this breakage. Fixes the following CVEs: - CVE-2018-10876 - CVE-2018-10877 - CVE-2018-10879 - CVE-2018-10880 - CVE-2018-10881 - CVE-2018-10882 - CVE-2018-10883 Compile-tested: ath79, octeon, x86/64 Runtime-tested: ath79, octeon, x86/64 Signed-off-by: Stijn Tintel <stijn@linux-ipv6.be>
103 lines
4.3 KiB
Diff
103 lines
4.3 KiB
Diff
From: Christian Lamparter <chunkeey@gmail.com>
|
|
Date: Thu, 12 Apr 2018 21:01:38 +0200
|
|
Subject: [PATCH] pinctrl: msm: fix gpio-hog related boot issues
|
|
|
|
Sven Eckelmann reported an issue with the current IPQ4019 pinctrl.
|
|
Setting up any gpio-hog in the device-tree for his device would
|
|
"kill the bootup completely":
|
|
|
|
| [ 0.477838] msm_serial 78af000.serial: could not find pctldev for node /soc/pinctrl@1000000/serial_pinmux, deferring probe
|
|
| [ 0.499828] spi_qup 78b5000.spi: could not find pctldev for node /soc/pinctrl@1000000/spi_0_pinmux, deferring probe
|
|
| [ 1.298883] requesting hog GPIO enable USB2 power (chip 1000000.pinctrl, offset 58) failed, -517
|
|
| [ 1.299609] gpiochip_add_data: GPIOs 0..99 (1000000.pinctrl) failed to register
|
|
| [ 1.308589] ipq4019-pinctrl 1000000.pinctrl: Failed register gpiochip
|
|
| [ 1.316586] msm_serial 78af000.serial: could not find pctldev for node /soc/pinctrl@1000000/serial_pinmux, deferring probe
|
|
| [ 1.322415] spi_qup 78b5000.spi: could not find pctldev for node /soc/pinctrl@1000000/spi_0_pinmux, deferri
|
|
|
|
This was also verified on a RT-AC58U (IPQ4018) which would
|
|
no longer boot, if a gpio-hog was specified. (Tried forcing
|
|
the USB LED PIN (GPIO0) to high.).
|
|
|
|
The problem is that Pinctrl+GPIO registration is currently
|
|
peformed in the following order in pinctrl-msm.c:
|
|
1. pinctrl_register()
|
|
2. gpiochip_add()
|
|
3. gpiochip_add_pin_range()
|
|
|
|
The actual error code -517 == -EPROBE_DEFER is coming from
|
|
pinctrl_get_device_gpio_range(), which is called through:
|
|
gpiochip_add
|
|
of_gpiochip_add
|
|
of_gpiochip_scan_gpios
|
|
gpiod_hog
|
|
gpiochip_request_own_desc
|
|
__gpiod_request
|
|
chip->request
|
|
gpiochip_generic_request
|
|
pinctrl_gpio_request
|
|
pinctrl_get_device_gpio_range
|
|
|
|
pinctrl_get_device_gpio_range() is unable to find any valid
|
|
pin ranges, since nothing has been added to the pinctrldev_list yet.
|
|
so the range can't be found, and the operation fails with -EPROBE_DEFER.
|
|
|
|
This patch fixes the issue by adding the "gpio-ranges" property to
|
|
the pinctrl device node of all upstream Qcom SoC. The pin ranges are
|
|
then added by the gpio core.
|
|
|
|
In order to remain compatible with older, existing DTs (and ACPI)
|
|
a check for the "gpio-ranges" property has been added to
|
|
msm_gpio_init(). This prevents the driver of adding the same entry
|
|
to the pinctrldev_list twice.
|
|
|
|
Reported-by: Sven Eckelmann <sven.eckelmann@openmesh.com>
|
|
Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
|
|
|
|
Origin: other, https://patchwork.kernel.org/patch/10339127/
|
|
---
|
|
arch/arm/boot/dts/qcom-ipq4019.dtsi | 1 +
|
|
drivers/pinctrl/qcom/pinctrl-msm.c | 23 ++++++++++++++++++-----
|
|
14 files changed, 32 insertions(+), 6 deletions(-)
|
|
|
|
--- a/arch/arm/boot/dts/qcom-ipq4019.dtsi
|
|
+++ b/arch/arm/boot/dts/qcom-ipq4019.dtsi
|
|
@@ -182,6 +182,7 @@
|
|
compatible = "qcom,ipq4019-pinctrl";
|
|
reg = <0x01000000 0x300000>;
|
|
gpio-controller;
|
|
+ gpio-ranges = <&tlmm 0 0 100>;
|
|
#gpio-cells = <2>;
|
|
interrupt-controller;
|
|
#interrupt-cells = <2>;
|
|
--- a/drivers/pinctrl/qcom/pinctrl-msm.c
|
|
+++ b/drivers/pinctrl/qcom/pinctrl-msm.c
|
|
@@ -831,11 +831,24 @@ static int msm_gpio_init(struct msm_pinc
|
|
return ret;
|
|
}
|
|
|
|
- ret = gpiochip_add_pin_range(&pctrl->chip, dev_name(pctrl->dev), 0, 0, chip->ngpio);
|
|
- if (ret) {
|
|
- dev_err(pctrl->dev, "Failed to add pin range\n");
|
|
- gpiochip_remove(&pctrl->chip);
|
|
- return ret;
|
|
+ /*
|
|
+ * For DeviceTree-supported systems, the gpio core checks the
|
|
+ * pinctrl's device node for the "gpio-ranges" property.
|
|
+ * If it is present, it takes care of adding the pin ranges
|
|
+ * for the driver. In this case the driver can skip ahead.
|
|
+ *
|
|
+ * In order to remain compatible with older, existing DeviceTree
|
|
+ * files which don't set the "gpio-ranges" property or systems that
|
|
+ * utilize ACPI the driver has to call gpiochip_add_pin_range().
|
|
+ */
|
|
+ if (!of_property_read_bool(pctrl->dev->of_node, "gpio-ranges")) {
|
|
+ ret = gpiochip_add_pin_range(&pctrl->chip,
|
|
+ dev_name(pctrl->dev), 0, 0, chip->ngpio);
|
|
+ if (ret) {
|
|
+ dev_err(pctrl->dev, "Failed to add pin range\n");
|
|
+ gpiochip_remove(&pctrl->chip);
|
|
+ return ret;
|
|
+ }
|
|
}
|
|
|
|
ret = gpiochip_irqchip_add(chip,
|