imx6: remove linux 4.4 support

[openwrt/openwrt.git] / target / linux / imx6 / patches-4.4 / 110-serial-imx-repair-and-complete-handshaking.patch

diff --git a/target/linux/imx6/patches-4.4/110-serial-imx-repair-and-complete-handshaking.patch b/target/linux/imx6/patches-4.4/110-serial-imx-repair-and-complete-handshaking.patch
deleted file mode 100644 (file)
index 82715b0..0000000
--- a/target/linux/imx6/patches-4.4/110-serial-imx-repair-and-complete-handshaking.patch
+++ /dev/null
@@ -1,74 +0,0 @@
-From 90ebc4838666d148eac5bbac6f4044e5b25cd2d6 Mon Sep 17 00:00:00 2001
-From: =?UTF-8?q?Uwe=20Kleine-K=C3=B6nig?= <u.kleine-koenig@pengutronix.de>
-Date: Sun, 18 Oct 2015 21:34:46 +0200
-Subject: [PATCH] serial: imx: repair and complete handshaking
-MIME-Version: 1.0
-Content-Type: text/plain; charset=UTF-8
-Content-Transfer-Encoding: 8bit
-
-The .get_mctrl callback should not report the status of RTS or LOOP, so
-drop this. Instead implement reporting the state of CAR (aka DCD) and
-RI.
-
-For .set_mctrl implement setting the DTR line.
-
-Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
-Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
-Signed-off-by: Petr Štetiar <ynezz@true.cz>
----
- drivers/tty/serial/imx.c | 23 +++++++++++++++++------
- 1 file changed, 17 insertions(+), 6 deletions(-)
-
---- a/drivers/tty/serial/imx.c
-+++ b/drivers/tty/serial/imx.c
-@@ -148,8 +148,11 @@
- #define USR2_TXFE      (1<<14) /* Transmit buffer FIFO empty */
- #define USR2_DTRF      (1<<13) /* DTR edge interrupt flag */
- #define USR2_IDLE      (1<<12) /* Idle condition */
-+#define USR2_RIDELT    (1<<10) /* Ring Interrupt Delta */
-+#define USR2_RIIN      (1<<9)  /* Ring Indicator Input */
- #define USR2_IRINT     (1<<8)  /* Serial infrared interrupt flag */
- #define USR2_WAKE      (1<<7)  /* Wake */
-+#define USR2_DCDIN     (1<<5)  /* Data Carrier Detect Input */
- #define USR2_RTSF      (1<<4)  /* RTS edge interrupt flag */
- #define USR2_TXDC      (1<<3)  /* Transmitter complete */
- #define USR2_BRCD      (1<<2)  /* Break condition */
-@@ -804,16 +807,19 @@ static unsigned int imx_tx_empty(struct
- static unsigned int imx_get_mctrl(struct uart_port *port)
- {
-       struct imx_port *sport = (struct imx_port *)port;
--      unsigned int tmp = TIOCM_DSR | TIOCM_CAR;
-+      unsigned int tmp = TIOCM_DSR;
-+      unsigned usr1 = readl(sport->port.membase + USR1);
- 
--      if (readl(sport->port.membase + USR1) & USR1_RTSS)
-+      if (usr1 & USR1_RTSS)
-               tmp |= TIOCM_CTS;
- 
--      if (readl(sport->port.membase + UCR2) & UCR2_CTS)
--              tmp |= TIOCM_RTS;
--
--      if (readl(sport->port.membase + uts_reg(sport)) & UTS_LOOP)
--              tmp |= TIOCM_LOOP;
-+      /* in DCE mode DCDIN is always 0 */
-+      if (!(usr1 & USR2_DCDIN))
-+              tmp |= TIOCM_CAR;
-+
-+      /* in DCE mode RIIN is always 0 */
-+      if (readl(sport->port.membase + USR2) & USR2_RIIN)
-+              tmp |= TIOCM_RI;
- 
-       return tmp;
- }
-@@ -831,6 +837,11 @@ static void imx_set_mctrl(struct uart_po
-               writel(temp, sport->port.membase + UCR2);
-       }
- 
-+      temp = readl(sport->port.membase + UCR3) & ~UCR3_DSR;
-+      if (!(mctrl & TIOCM_DTR))
-+              temp |= UCR3_DSR;
-+      writel(temp, sport->port.membase + UCR3);
-+
-       temp = readl(sport->port.membase + uts_reg(sport)) & ~UTS_LOOP;
-       if (mctrl & TIOCM_LOOP)
-               temp |= UTS_LOOP;