Merge series "Support ROHM BD9576MUF and BD9573MUF PMICs" from Matti Vaittinen <matti.vaittinen@fi.rohmeurope.com>:

Initial support for ROHM BD9576MUF and BD9573MUF PMICs.

These PMICs are primarily intended to be used to power the R-Car family
processors. BD9576MUF includes some additional safety features the
BD9573MUF does not have. This initial version of drivers does not
utilize these features and for now the SW behaviour is identical.

Please note that this version of drivers is only tested on BD9576MUF
but according to the data-sheets the relevant parts of registers should
be same so drivers should also work on BD9573MUF.

This patch series includes MFD, watchdog and regulator drivers with
basic functionality such as:

- Enabling and pinging the watchdog
- configuring watchog timeout / window from device-tree
- reading regulator states/voltages
- enabling/disabling VOUT1 (VD50) when control mode B is used.

This patch series does not bring interrupt support. BD9576MUF and BD9573MUF
are designed to keep the IRQ line low for whole duration of error
condition. IRQ can't be 'acked'. So proper IRQ support would require
some IRQ limiter implementation (delayed unmask?) in order to not hog
the CPU.

---

Matti Vaittinen (6):
  dt_bindings: mfd: Add ROHM BD9576MUF and BD9573MUF PMICs
  dt_bindings: regulator: Add ROHM BD9576MUF and BD9573MUF PMICs
  mfd: Support ROHM BD9576MUF and BD9573MUF
  wdt: Support wdt on ROHM BD9576MUF and BD9573MUF
  regulator: Support ROHM BD9576MUF and BD9573MUF
  MAINTAINERS: Add ROHM BD9576MUF and BD9573MUF drivers

 .../bindings/mfd/rohm,bd9576-pmic.yaml        | 129 +++++++
 .../regulator/rohm,bd9576-regulator.yaml      |  33 ++
 MAINTAINERS                                   |   4 +
 drivers/mfd/Kconfig                           |  11 +
 drivers/mfd/Makefile                          |   1 +
 drivers/mfd/rohm-bd9576.c                     | 130 +++++++
 drivers/regulator/Kconfig                     |  10 +
 drivers/regulator/Makefile                    |   1 +
 drivers/regulator/bd9576-regulator.c          | 337 ++++++++++++++++++
 drivers/watchdog/Kconfig                      |  13 +
 drivers/watchdog/Makefile                     |   1 +
 drivers/watchdog/bd9576_wdt.c                 | 295 +++++++++++++++
 include/linux/mfd/rohm-bd957x.h               |  61 ++++
 include/linux/mfd/rohm-generic.h              |   2 +
 14 files changed, 1028 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/mfd/rohm,bd9576-pmic.yaml
 create mode 100644 Documentation/devicetree/bindings/regulator/rohm,bd9576-regulator.yaml
 create mode 100644 drivers/mfd/rohm-bd9576.c
 create mode 100644 drivers/regulator/bd9576-regulator.c
 create mode 100644 drivers/watchdog/bd9576_wdt.c
 create mode 100644 include/linux/mfd/rohm-bd957x.h

base-commit: f4d51dffc6c01a9e94650d95ce0104964f8ae822
--
2.21.0

--
Matti Vaittinen, Linux device drivers
ROHM Semiconductors, Finland SWDC
Kiviharjunlenkki 1E
90220 OULU
FINLAND

~~~ "I don't think so," said Rene Descartes. Just then he vanished ~~~
Simon says - in Latin please.
~~~ "non cogito me" dixit Rene Descarte, deinde evanescavit ~~~
Thanks to Simon Glass for the translation =]

1 files changed, 7 insertions, 0 deletions

diff --git a/drivers/accessibility/speakup/spk_ttyio.c b/drivers/accessibility/speakup/spk_ttyio.c
index 9b95f77f9265..a831ff64f8ba 100644
--- a/drivers/accessibility/speakup/spk_ttyio.c
+++ b/drivers/accessibility/speakup/spk_ttyio.c
@@ -116,6 +116,7 @@ static void spk_ttyio_tiocmset(unsigned int set, unsigned int clear);
 static unsigned char spk_ttyio_in(void);
 static unsigned char spk_ttyio_in_nowait(void);
 static void spk_ttyio_flush_buffer(void);
+static int spk_ttyio_wait_for_xmitr(struct spk_synth *in_synth);
 
 struct spk_io_ops spk_ttyio_ops = {
 	.synth_out = spk_ttyio_out,
@@ -125,6 +126,7 @@ struct spk_io_ops spk_ttyio_ops = {
 	.synth_in = spk_ttyio_in,
 	.synth_in_nowait = spk_ttyio_in_nowait,
 	.flush_buffer = spk_ttyio_flush_buffer,
+	.wait_for_xmitr = spk_ttyio_wait_for_xmitr,
 };
 EXPORT_SYMBOL_GPL(spk_ttyio_ops);
 
@@ -286,6 +288,11 @@ static void spk_ttyio_tiocmset(unsigned int set, unsigned int clear)
 	mutex_unlock(&speakup_tty_mutex);
 }
 
+static int spk_ttyio_wait_for_xmitr(struct spk_synth *in_synth)
+{
+	return 1;
+}
+
 static unsigned char ttyio_in(int timeout)
 {
 	struct spk_ldisc_data *ldisc_data = speakup_tty->disc_data;