diff mbox series

[v1,1/2] mmc: dt-bindings: add "bus-clk" for MT2712

Message ID 1538188195-3608-1-git-send-email-chaotian.jing@mediatek.com (mailing list archive)
State New, archived
Headers show
Series [v1,1/2] mmc: dt-bindings: add "bus-clk" for MT2712 | expand

Commit Message

Chaotian Jing Sept. 29, 2018, 2:29 a.m. UTC
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(+)

Comments

Ulf Hansson Oct. 8, 2018, 11:51 a.m. UTC | #1
On 29 September 2018 at 04:29, Chaotian Jing <chaotian.jing@mediatek.com> wrote:
> 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>

Applied for next, thanks!

Kind regards
Uffe

> ---
>  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..f2208f4 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 clock 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
>
diff mbox series

Patch

diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
index f33467a..f2208f4 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 clock 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