[PATCH 02/25] serial: sh-sci: Update DT binding documentation for BRG support

Geert Uytterhoeven
2015-11-19T18:44:56Z

Amend the DT bindings to include the optional clock sources for the Baud
Rate Generator for External Clock (BRG), as found on some SCIF variants
and on HSCIF.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Cc: devicetree@vger.kernel.org
---
Documentation/devicetree/bindings/serial/renesas,sci-serial.txt | 6 ++++++
1 file changed, 6 insertions(+)

diff --git a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
index 8efc9b6f35637fbb..ae907e39b11c2a5a 100644
--- a/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
+++ b/Documentation/devicetree/bindings/serial/renesas,sci-serial.txt
@@ -46,6 +46,12 @@ Required properties:
On (H)SCI(F) and some SCIFA, an additional clock may be specified:
- "hsck" for the optional external clock input (on HSCIF),
- "sck" for the optional external clock input (on other variants).
+ On UARTs equipped with a Baud Rate Generator for External Clock (BRG)
+ (some SCIF and HSCIF), additional clocks may be specified:
+ - "int_clk" for the optional internal clock source for the frequency
+ divider (typically the (AXI or SHwy) bus clock),
+ - "scif_clk" for the optional external clock source for the frequency
+ divider (SCIF_CLK).

Note: Each enabled SCIx UART should have an alias correctly numbered in the
"aliases" node.
--
1.9.1