Hi Bartosz,

On Monday 31 October 2016 03:10 PM, Bartosz Golaszewski wrote:

2016-10-31 5:30 GMT+01:00 Rob Herring [off-list ref]:

quoted

On Wed, Oct 26, 2016 at 07:35:55PM +0200, Bartosz Golaszewski wrote:

quoted

Create the driver for the da8xx master peripheral priority
configuration and implement support for writing to the three
Master Priority registers on da850 SoCs.

Signed-off-by: Bartosz Golaszewski <redacted>
---
 .../devicetree/bindings/bus/ti,da850-mstpri.txt    |  20 ++
 drivers/bus/Kconfig                                |   9 +
 drivers/bus/Makefile                               |   2 +
 drivers/bus/da8xx-mstpri.c                         | 266 +++++++++++++++++++++
 4 files changed, 297 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/bus/ti,da850-mstpri.txt
 create mode 100644 drivers/bus/da8xx-mstpri.c

diff --git a/Documentation/devicetree/bindings/bus/ti,da850-mstpri.txt b/Documentation/devicetree/bindings/bus/ti,da850-mstpri.txt
new file mode 100644
index 0000000..225af09
--- /dev/null
+++ b/Documentation/devicetree/bindings/bus/ti,da850-mstpri.txt

@@ -0,0 +1,20 @@
+* Device tree bindings for Texas Instruments da8xx master peripheral
+  priority driver
+
+DA8XX SoCs feature a set of registers allowing to change the priority of all
+peripherals classified as masters.
+
+Documentation:
+OMAP-L138 (DA850) - http://www.ti.com/lit/ug/spruh82c/spruh82c.pdf
+
+Required properties:
+
+- compatible:                "ti,da850-mstpri", "syscon" - for da850 based boards

Drop syscon. Doesn't look like it is needed and the example doesn't
match.

Hi Rob,

it is needed: syscon_regmap_lookup_by_compatible() fails without it. I
fixed the example instead.

Why are master priority registers under syscon? This driver should be
the only entity touching them. So do we need an MFD driver?

Thanks,
Sekhar