brcm2708: rename target to bcm27xx

[openwrt/openwrt.git] / target / linux / brcm2708 / patches-4.19 / 950-0036-amba_pl011-Add-cts-event-workaround-DT-property.patch

diff --git a/target/linux/brcm2708/patches-4.19/950-0036-amba_pl011-Add-cts-event-workaround-DT-property.patch b/target/linux/brcm2708/patches-4.19/950-0036-amba_pl011-Add-cts-event-workaround-DT-property.patch
deleted file mode 100644 (file)
index d7514a5..0000000
--- a/target/linux/brcm2708/patches-4.19/950-0036-amba_pl011-Add-cts-event-workaround-DT-property.patch
+++ /dev/null
@@ -1,47 +0,0 @@
-From 17a4507175ca6018ea40e91c9d753bc39f043d99 Mon Sep 17 00:00:00 2001
-From: Phil Elwell <phil@raspberrypi.org>
-Date: Fri, 29 Sep 2017 10:32:19 +0100
-Subject: [PATCH] amba_pl011: Add cts-event-workaround DT property
-
-The BCM2835 PL011 implementation seems to have a bug that can lead to a
-transmission lockup if CTS changes frequently. A workaround was added to
-the driver with a vendor-specific flag to enable it, but this flag is
-currently not set for ARM implementations.
-
-Add a "cts-event-workaround" property to Pi DTBs and use the presence
-of that property to force the flag to be enabled in the driver.
-
-See: https://github.com/raspberrypi/linux/issues/1280
-
-Signed-off-by: Phil Elwell <phil@raspberrypi.org>
----
- Documentation/devicetree/bindings/serial/pl011.txt | 3 +++
- drivers/tty/serial/amba-pl011.c                    | 5 +++++
- 2 files changed, 8 insertions(+)
-
---- a/Documentation/devicetree/bindings/serial/pl011.txt
-+++ b/Documentation/devicetree/bindings/serial/pl011.txt
-@@ -35,6 +35,9 @@ Optional properties:
- - poll-timeout-ms:
-          Poll timeout when auto-poll is set, default
-          3000ms.
-+- cts-event-workaround:
-+         Enables the (otherwise vendor-specific) workaround for the
-+         CTS-induced TX lockup.
- 
- See also bindings/arm/primecell.txt
- 
---- a/drivers/tty/serial/amba-pl011.c
-+++ b/drivers/tty/serial/amba-pl011.c
-@@ -2659,6 +2659,11 @@ static int pl011_probe(struct amba_devic
-       if (IS_ERR(uap->clk))
-               return PTR_ERR(uap->clk);
- 
-+      if (of_property_read_bool(dev->dev.of_node, "cts-event-workaround")) {
-+          vendor->cts_event_workaround = true;
-+          dev_info(&dev->dev, "cts_event_workaround enabled\n");
-+      }
-+
-       uap->reg_offset = vendor->reg_offset;
-       uap->vendor = vendor;
-       uap->fifosize = vendor->get_fifosize(dev);