On 11/25/2010 10:31 PM, Greg KH wrote:
On Thu, Nov 25, 2010 at 12:00:35PM +0530, Mayank Rana wrote:
This driver supports UART-DM HW on MSM platforms. It uses the on
chip DMA to drive data transfers and has optional support for UART
power management independent of Linux suspend/resume and wakeup
from Rx.
The driver was originally developed by Google. It is functionally
equivalent to the version available at:
http://android.git.kernel.org/?p=kernel/experimental.git
the differences being:
1) Remove wakelocks and change unsupported DMA API.
2) Replace clock selection register codes by macros.
3) Fix checkpatch errors and add inline documentation.
4) Add runtime PM hooks for active power state transitions.
CC: Nick Pelly<npelly@xxxxxxxxxx>
Signed-off-by: Sankalp Bose<sankalpb@xxxxxxxxxxxxxx>
Signed-off-by: Mayank Rana<mrana@xxxxxxxxxxxxxx>
---
drivers/serial/Kconfig | 12 +
drivers/serial/Makefile | 1 +
drivers/serial/msm_serial_hs.c | 1680
++++++++++++++++++++++++++++++++++
Your patch is line-wrapped and can not be applid.
Please fix your email client and try again.
I will make sure that next patch won't have this problem.
drivers/serial/msm_serial_hs_hwreg.h | 167 ++++
include/linux/msm_serial_hs.h | 49 +
5 files changed, 1909 insertions(+), 0 deletions(-)
create mode 100644 drivers/serial/msm_serial_hs.c
create mode 100644 drivers/serial/msm_serial_hs_hwreg.h
create mode 100644 include/linux/msm_serial_hs.h
diff --git a/drivers/serial/Kconfig b/drivers/serial/Kconfig
index aff9dcd..0a935ee 100644
--- a/drivers/serial/Kconfig
+++ b/drivers/serial/Kconfig
@@ -1381,6 +1381,18 @@ config SERIAL_MSM_CONSOLE
depends on SERIAL_MSM=y
select SERIAL_CORE_CONSOLE
+config SERIAL_MSM_HS
+ tristate "MSM UART High Speed: Serial Driver"
+ depends on ARM&& ARCH_MSM
+ select SERIAL_CORE
+ help
+ If you have a machine based on MSM family of SoCs, you
+ can enable its onboard high speed serial port by enabling
+ this option.
+
+ Choose M here to compile it as a module. The module will be
+ called msm_serial_hs.
+
config SERIAL_NETX
tristate "NetX serial port support"
depends on ARM&& ARCH_NETX
diff --git a/drivers/serial/Makefile b/drivers/serial/Makefile
index c570576..667de45 100644
--- a/drivers/serial/Makefile
+++ b/drivers/serial/Makefile
@@ -76,6 +76,7 @@ obj-$(CONFIG_SERIAL_SGI_IOC3) += ioc3_serial.o
obj-$(CONFIG_SERIAL_ATMEL) += atmel_serial.o
obj-$(CONFIG_SERIAL_UARTLITE) += uartlite.o
obj-$(CONFIG_SERIAL_MSM) += msm_serial.o
+obj-$(CONFIG_SERIAL_MSM_HS) += msm_serial_hs.o
obj-$(CONFIG_SERIAL_NETX) += netx-serial.o
obj-$(CONFIG_SERIAL_OF_PLATFORM) += of_serial.o
obj-$(CONFIG_SERIAL_OF_PLATFORM_NWPSERIAL) += nwpserial.o
diff --git a/drivers/serial/msm_serial_hs.c
b/drivers/serial/msm_serial_hs.c
new file mode 100644
index 0000000..4fdc70e
--- /dev/null
+++ b/drivers/serial/msm_serial_hs.c
@@ -0,0 +1,1680 @@
+/* drivers/serial/msm_serial_hs.c
+ *
+ * MSM 7k/8k High speed uart driver
+ *
+ * Copyright (c) 2007-2010, Code Aurora Forum. All rights reserved.
+ * Copyright (c) 2008 Google Inc.
+ * Modified: Nick Pelly<npelly@xxxxxxxxxx>
I don't understand, Nick originally wrote it? Or modified your version?
It looks that very initial driver has been done by QUIC , redone and
redesign by Nick for particular target.
+ *
+ * All source code in this file is licensed under the following license
+ * except where indicated.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ * See the GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, you can find it at http://www.fsf.org
+ */
+
+/*
+ * MSM 7k/8k High speed uart driver
+ *
+ * Has optional support for uart power management independent of linux
+ * suspend/resume:
+ *
+ * RX wakeup.
+ * UART wakeup can be triggered by RX activity (using a wakeup GPIO on the
+ * UART RX pin). This should only be used if there is not a wakeup
+ * GPIO on the UART CTS, and the first RX byte is known (for example, with
the
+ * Bluetooth Texas Instruments HCILL protocol), since the first RX byte
will
+ * always be lost. RTS will be asserted even while the UART is off in this
mode
+ * of operation. See msm_serial_hs_platform_data.rx_wakeup_irq.
+ */
+
+#include<linux/module.h>
+
+#include<linux/serial.h>
+#include<linux/serial_core.h>
+#include<linux/slab.h>
+#include<linux/init.h>
+#include<linux/interrupt.h>
+#include<linux/irq.h>
+#include<linux/io.h>
+#include<linux/ioport.h>
+#include<linux/kernel.h>
+#include<linux/timer.h>
+#include<linux/clk.h>
+#include<linux/platform_device.h>
+#include<linux/pm_runtime.h>
+#include<linux/dma-mapping.h>
+#include<linux/dmapool.h>
+#include<linux/wait.h>
+#include<linux/workqueue.h>
+
+#include<asm/atomic.h>
+#include<asm/irq.h>
+#include<asm/system.h>
+
+#include<mach/hardware.h>
+#include<mach/dma.h>
+#include<linux/msm_serial_hs.h>
Please put this file in include/platform_data/ instead.
You mean to say putting msm_serial_hs.h file into include of
arch/arm/<platform_data>.
next patch will have modification for that.
thanks,
greg k-h
--
To unsubscribe from this list: send the line "unsubscribe linux-serial" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
--
Sent by a consultant of the Qualcomm Innovation Center, Inc.
The Qualcomm Innovation Center, Inc. is a member of the Code Aurora Forum.
--
To unsubscribe from this list: send the line "unsubscribe linux-serial" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
