[PATCH 1/2] mmc: dt-bindings: add "bus-clk" for MT2712

Chaotian Jing
2018-09-28T11:40:54Z

On MT2712 MSDC0/3, HCLK/bus-clk need gate/ungate together,
or will hang when access MSDC register.

Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
---
Documentation/devicetree/bindings/mmc/mtk-sd.txt | 1 +
1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
index f33467a..182299b 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
@@ -22,6 +22,7 @@ Required properties:
"source" - source clock (required)
"hclk" - HCLK which used for host (required)
"source_cg" - independent source clock gate (required for MT2712)
+ "bus_clk" - bus clk used for internal register access(required for MT2712 MSDC0/3)
- pinctrl-names: should be "default", "state_uhs"
- pinctrl-0: should contain default/high speed pin ctrl
- pinctrl-1: should contain uhs mode pin ctrl
--
1.8.1.1.dirty