Re: [PATCH 12/14] DEVICETREE: Add bindings for PIC32 SDHC host controller

From: Sergei Shtylyov
Date: Sat Nov 21 2015 - 10:20:06 EST


On 11/21/2015 3:17 AM, Joshua Henderson wrote:

From: Andrei Pistirica <andrei.pistirica@xxxxxxxxxxxxx>

Document the devicetree bindings for the SDHC peripheral found on
Microchip PIC32 class devices.

Signed-off-by: Andrei Pistirica <andrei.pistirica@xxxxxxxxxxxxx>
Signed-off-by: Joshua Henderson <joshua.henderson@xxxxxxxxxxxxx>
.../devicetree/bindings/mmc/sdhci-pic32.txt | 24 ++++++++++++++++++++
1 file changed, 24 insertions(+)
create mode 100644 Documentation/devicetree/bindings/mmc/sdhci-pic32.txt

diff --git a/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt b/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt
new file mode 100644
index 0000000..f16388c
--- /dev/null
+++ b/Documentation/devicetree/bindings/mmc/sdhci-pic32.txt
@@ -0,0 +1,24 @@
+* Microchip PIC32 SDHCI Controller
+This file documents differences between the core properties in mmc.txt
+and the properties used by the sdhci-pic32 driver.
+Required properties:
+- compatible: Should be "microchip,pic32-sdhci"
+- reg: Should contain registers location and length
+- interrupts: Should contain interrupt
+- pinctrl: Should contain pinctrl for data and command lines

This is a required prop, yet the example doesn't contain it?

+Optional properties:
+- no-1-8-v: 1.8V voltage selection not supported
+- piomode: disable DMA support
+ sdhci@1f8ec000 {
+ compatible = "microchip,pic32-sdhci";
+ reg = <0x1f8ec000 0x100>;
+ clocks = <&REFCLKO4>, <&PBCLK5>;
+ clock-names = "base_clk", "sys_clk";

The "clocks" and "clock-names" props are not documented.


MBR, Sergei

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