linux.git/arch/sh/kernel/cpu/sh3, branch v4.11

serial: sh-sci: Compute the regshift value for SCI ports

2017-01-19T13:17:05+00:00

SCI instances found in SH SoCs have different spacing between registers
depending on the SoC. The platform data contains a regshift field that
tells the driver by how many bits to shift the register offset to
compute its address. We can compute the regshift value automatically
based on the memory resource size, there's no need to pass the value
through platform data.

Fix the sh7750 SCI and sh7760 SIM port memory resources length to ensure
proper computation of the regshift value.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

serial: sh-sci: Fix register offsets for the IRDA serial port

2017-01-19T13:17:05+00:00

Even though most of its registers are 8-bit wide, the IRDA has two
16-bit registers that make it a 16-bit peripheral and not a 8-bit
peripheral with addresses shifted by one. Fix the registers offset in
the driver and the platform data regshift value.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set the sh-sci platform data scscr CKE0 bit

2017-01-19T13:17:05+00:00

The bit is only set by platforms that also set the CKE1 but, in which
case its value is ignored by the device. Don't set it, this simplifies
platform data and only leaves the CKE1 bit to be handled.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set sh-sci port_reg

2017-01-19T13:17:05+00:00

The driver considers all negative or zero values of the port_reg field
as invalid. The four platforms that set the field to a register address
all use an address higher than 0x7fffffff, which is thus considered by
the driver as invalid. The feature is thus never used, remove it.

The feature could be implemented properly in the future using the
pinctrl and GPIO APIs if desired.

While at it, don't set the field to SCIx_NOT_SUPPORTED (-1) either,
leaving it unset leads to the same result. This will allow removing the
SCIx_NOT_SUPPORTED macro.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set the sh-sci pdata UPF_BOOT_AUTOCONF flags

2017-01-19T13:17:05+00:00

The flag is set by the driver internally, don't set it in platform data.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set sh-sci pdata scscr TIE and RIE bits

2017-01-19T13:17:04+00:00

The scscr platform data field is used by the driver in three locations.
One of them masks out all bits except SCSCR_REIE. The two other are the
set_termios handler and the console write handler.

The set_termios handler calls sci_start_rx() to enable the receiver,
which sets the RIE bit unconditionally. It then calls sci_port_disable()
that effectively disables both the transmitter and the receiver. The
TIE bit will thus get set later when the serial cores reenables the
serial port.

The console write handler runs with interrupts disabled, and saves and
restores the SCSCR register value. The RIE and TIE bits are thus not
needed there.

The bits are thus not necessary in platform data, remove them.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: Don't set sh-sci pdata scscr TE and RE bits

2017-01-19T13:17:04+00:00

The bits are set by the driver internally, don't set them in platform
data.

Signed-off-by: Laurent Pinchart 
Reviewed-by: Geert Uytterhoeven 
Signed-off-by: Greg Kroah-Hartman

sh: fix sh770x SCIF memory regions

2014-10-29T23:33:15+00:00

Resources scif1_resources & scif2_resources overlap.  Actual SCIF region
size is 0x10.

This is regression from commit d850acf975be ("sh: Declare SCIF register
base and IRQ as resources")

Signed-off-by: Andriy Skulysh 
Acked-by: Laurent Pinchart 
Cc: Geert Uytterhoeven 
Cc: 
Signed-off-by: Andrew Morton 
Signed-off-by: Linus Torvalds

sh: Switch to new style TMU device

2014-05-11T10:35:27+00:00

The TMU (Timer Unit) driver implements a new style of platform data that
handles the timer as a single device with multiple channel. Switch from
the old-style platform data to the new-style platform data.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Simon Horman

sh: Switch to new style CMT device

2014-05-11T10:35:26+00:00

The CMT (Compare Match Timer) driver implements a new style of platform
data that handles the timer as a single device with multiple channel.
Switch from the old-style platform data to the new-style platform data.

Signed-off-by: Laurent Pinchart 
Signed-off-by: Simon Horman