From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Date: Sat, 21 Oct 2023 20:21:14 +0000 (+0200)
Subject: 4.19-stable patches
X-Git-Tag: v4.14.328~52
X-Git-Url: http://git.ipfire.org/gitweb.cgi?a=commitdiff_plain;h=be0cb20e02301ab4eb3dd973ddd175324a4fd4bc;p=thirdparty%2Fkernel%2Fstable-queue.git

4.19-stable patches

added patches:
	gpio-vf610-set-value-before-the-direction-to-avoid-a-glitch.patch
---

diff --git a/queue-4.19/gpio-vf610-set-value-before-the-direction-to-avoid-a-glitch.patch b/queue-4.19/gpio-vf610-set-value-before-the-direction-to-avoid-a-glitch.patch
new file mode 100644
index 00000000000..23bc6ee86b5
--- /dev/null
+++ b/queue-4.19/gpio-vf610-set-value-before-the-direction-to-avoid-a-glitch.patch
@@ -0,0 +1,41 @@
+From fc363413ef8ea842ae7a99e3caf5465dafdd3a49 Mon Sep 17 00:00:00 2001
+From: Haibo Chen <haibo.chen@nxp.com>
+Date: Wed, 18 Oct 2023 11:00:17 +0200
+Subject: gpio: vf610: set value before the direction to avoid a glitch
+
+From: Haibo Chen <haibo.chen@nxp.com>
+
+commit fc363413ef8ea842ae7a99e3caf5465dafdd3a49 upstream.
+
+We found a glitch when configuring the pad as output high. To avoid this
+glitch, move the data value setting before direction config in the
+function vf610_gpio_direction_output().
+
+Fixes: 659d8a62311f ("gpio: vf610: add imx7ulp support")
+Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
+[Bartosz: tweak the commit message]
+Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
+Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
+---
+ drivers/gpio/gpio-vf610.c |    4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+--- a/drivers/gpio/gpio-vf610.c
++++ b/drivers/gpio/gpio-vf610.c
+@@ -137,14 +137,14 @@ static int vf610_gpio_direction_output(s
+ 	unsigned long mask = BIT(gpio);
+ 	u32 val;
+ 
++	vf610_gpio_set(chip, gpio, value);
++
+ 	if (port->sdata && port->sdata->have_paddr) {
+ 		val = vf610_gpio_readl(port->gpio_base + GPIO_PDDR);
+ 		val |= mask;
+ 		vf610_gpio_writel(val, port->gpio_base + GPIO_PDDR);
+ 	}
+ 
+-	vf610_gpio_set(chip, gpio, value);
+-
+ 	return pinctrl_gpio_direction_output(chip->base + gpio);
+ }
+ 
diff --git a/queue-4.19/series b/queue-4.19/series
index d4b4727513a..5582f150dc3 100644
--- a/queue-4.19/series
+++ b/queue-4.19/series
@@ -94,3 +94,4 @@ usb-serial-option-add-entry-for-sierra-em9191-with-new-firmware.patch
 usb-serial-option-add-fibocom-to-dell-custom-modem-fm101r-gl.patch
 perf-disallow-mis-matched-inherited-group-reads.patch
 s390-pci-fix-iommu-bitmap-allocation.patch
+gpio-vf610-set-value-before-the-direction-to-avoid-a-glitch.patch