ipq40xx: Remove kernel 4.14 support

[openwrt/openwrt.git] / target / linux / ipq40xx / patches-4.14 / 080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch

diff --git a/target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch b/target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch
deleted file mode 100644 (file)
index 0efb38b..0000000
--- a/target/linux/ipq40xx/patches-4.14/080-pinctrl-msm-fix-gpio-hog-related-boot-issues.patch
+++ /dev/null
@@ -1,71 +0,0 @@
-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
-@@ -186,6 +186,7 @@
-                       compatible = "qcom,ipq4019-pinctrl";
-                       reg = <0x01000000 0x300000>;
-                       gpio-controller;
-+                      gpio-ranges = <&tlmm 0 0 100>;
-                       #gpio-cells = <2>;
-                       interrupt-controller;
-                       #interrupt-cells = <2>;