linux.git/drivers/tty/serial/xilinx_uartps.c, branch v4.14 Linux kernel source tree serial: xuartps: Remove __init marking from early write 2017-07-30T14:38:50+00:00 Jeffy Chen jeffy.chen@rock-chips.com 2017-07-18T06:02:56+00:00 99d2731678723b86a7fe17319214fdbe53e4fc0c The earlycon would be alive outside the init code in these cases: 1/ we have keep_bootcon in cmdline. 2/ we don't have a real console to switch to. So remove the __init marking to avoid invalid memory access. Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com> Reviewed-by: Douglas Anderson <dianders@chromium.org> Tested-by: Brian Norris <briannorris@chromium.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The earlycon would be alive outside the init code in these cases:
1/ we have keep_bootcon in cmdline.
2/ we don't have a real console to switch to.

So remove the __init marking to avoid invalid memory access.

Signed-off-by: Jeffy Chen <jeffy.chen@rock-chips.com>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Brian Norris <briannorris@chromium.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: uartps: Fix kernel doc warnings 2017-06-03T09:48:53+00:00 Nava kishore Manne nava.manne@xilinx.com 2017-05-26T11:13:18+00:00 094094a9373fbea80ec00714eed5c24f6fd39ecf This patch fixes the kernel doc warnings in the driver. Signed-off-by: Nava kishore Manne <navam@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
This patch fixes the kernel doc warnings in the driver.

Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: xilinx_uartps: Fix the error path 2017-05-18T14:38:20+00:00 Shubhrajyoti Datta shubhrajyoti.datta@xilinx.com 2017-05-09T06:20:32+00:00 d653c43aefedd3d22d3d2222c10f5b6ae2dfbe13 Fix the runtime calls in the error path. Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Fix the runtime calls in the error path.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: xuartps: Enable clocks in the pm disable case also 2017-04-08T16:54:07+00:00 Shubhrajyoti Datta shubhrajyoti.datta@xilinx.com 2017-04-06T06:57:41+00:00 ecfc5771ef0617d33a19a75643b7b3708895018e When Power management is disabled then the clocks are not getting enabled. This patch enables it for the !PM case also. While at it also pm_runtime_set_active is called before calling pm_runtime_enable. Reported-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
When Power management is disabled then the clocks are not getting
enabled. This patch enables it for the !PM case also.
While at it also pm_runtime_set_active is called before
calling pm_runtime_enable.

Reported-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: xuartps: Cleanup the clock enable 2017-03-17T05:14:00+00:00 Shubhrajyoti Datta shubhrajyoti.datta@xilinx.com 2017-03-15T15:38:56+00:00 81e33b51ed69d2b2eaf3fbeb043144b9d9ec7629 The core handles the clocking now. Remove the clock disable in suspend. In resume we enable the clocks and disable after register write. Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
The core handles the clocking now. Remove the clock disable in
suspend. In resume we enable the clocks and disable after register
write.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: xilinx_uartps: Add pm runtime support 2017-03-14T03:01:40+00:00 Shubhrajyoti Datta shubhrajyoti.datta@xilinx.com 2017-03-09T05:49:07+00:00 d62100f1aac28d18057c05410f706c65baf748fa Adds pm runtime support to xilinx uart ps. Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Adds pm runtime support to xilinx uart ps.

Signed-off-by: Shubhrajyoti Datta <shubhrajyoti.datta@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: xuartps: Enable uart loopback mode 2017-01-25T10:08:30+00:00 Yasir-Khan yasir_khan@mentor.com 2017-01-23T12:26:08+00:00 5935a2b3a57c03d7e6fea967ef0b926f82fc995e This patch adds xilinx uart loopback support by modifying the cdns_uart_set_mctrl function to handle the switch to loopback mode. After this patch, the loopback mode can be enabled/disabled by setting/clearing the TIOCM_LOOP modem bit via TIOCMBIS/TIOCMBIC ioctls respectively. Signed-off-by: Yasir-Khan <yasir_khan@mentor.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
This patch adds xilinx uart loopback support by modifying the
cdns_uart_set_mctrl function to handle the switch to loopback mode.
After this patch, the loopback mode can be enabled/disabled by
setting/clearing the TIOCM_LOOP modem bit via TIOCMBIS/TIOCMBIC
ioctls respectively.

Signed-off-by: Yasir-Khan <yasir_khan@mentor.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: xuartps: Add new compatible string for ZynqMP 2016-10-27T14:00:32+00:00 Nava kishore Manne nava.manne@xilinx.com 2016-10-12T07:47:27+00:00 0267a4ff9836a1a4e59044db5bb8cdaddb986d3f This patch Adds the new compatible string for ZynqMP SoC. Signed-off-by: Nava kishore Manne <navam@xilinx.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
This patch Adds the new compatible string for ZynqMP SoC.

Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: xuartps: Add some register initialisation to cdns_early_console_setup() 2016-09-27T10:54:41+00:00 Scott Telford stelford@cadence.com 2016-09-22T15:58:16+00:00 c41251b17563234371a9b376ed4914efa4bc079b Add initialisation of control register and baud rate to cdns_early_console_setup(), required when running kernel standalone without a boot loader. Baud rate is only initialised when specified in earlycon command-line option, otherwise it is assumed this has been set by a boot loader. Updated Documentation/kernel-parameters.txt accordingly. Signed-off-by: Scott Telford <stelford@cadence.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
Add initialisation of control register and baud rate to
cdns_early_console_setup(), required when running kernel standalone
without a boot loader. Baud rate is only initialised when specified in
earlycon command-line option, otherwise it is assumed this has been
set by a boot loader. Updated Documentation/kernel-parameters.txt
accordingly.

Signed-off-by: Scott Telford <stelford@cadence.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
serial: xuartps: Removed unwanted checks while reading the error conditions 2016-09-27T10:54:41+00:00 Nava kishore Manne nava.manne@xilinx.com 2016-09-22T15:58:15+00:00 212d249b6acbe00ac3617938433ce785c2d68e88 This patch Remove the unwated checks while reading the parity,framing, overrun and Break detection errors. Signed-off-by: Nava kishore Manne <navam@xilinx.com> Signed-off-by: Michal Simek <michal.simek@xilinx.com> [stelford@cadence.com: cherry picked from https://github.com/Xilinx/linux-xlnx commit b1cf74970df5470ffbc8e7876a9edf5e3498ef94] Signed-off-by: Scott Telford <stelford@cadence.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
This patch Remove the unwated checks while reading the parity,framing,
overrun and Break detection errors.

Signed-off-by: Nava kishore Manne <navam@xilinx.com>
Signed-off-by: Michal Simek <michal.simek@xilinx.com>
[stelford@cadence.com: cherry picked from
https://github.com/Xilinx/linux-xlnx commit
b1cf74970df5470ffbc8e7876a9edf5e3498ef94]
Signed-off-by: Scott Telford <stelford@cadence.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>