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| Started by | Chaotian Jing <chaotian.jing@mediatek.com> |
|---|---|
| First post | 2017-09-21 04:00 +0200 |
| Last post | 2017-09-22 14:00 +0200 |
| Articles | 3 — 2 participants |
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[PATCH v2] mmc: dt-bindings: Add reg/source_cg/latch-ck for Mediatek MMC bindings Chaotian Jing <chaotian.jing@mediatek.com> - 2017-09-21 04:00 +0200
Re: [PATCH v2] mmc: dt-bindings: Add reg/source_cg/latch-ck for Mediatek MMC bindings Linus Walleij <linus.walleij@linaro.org> - 2017-09-22 13:30 +0200
Re: [PATCH v2] mmc: dt-bindings: Add reg/source_cg/latch-ck for Mediatek MMC bindings Chaotian Jing <chaotian.jing@mediatek.com> - 2017-09-22 14:00 +0200
| From | Chaotian Jing <chaotian.jing@mediatek.com> |
|---|---|
| Date | 2017-09-21 04:00 +0200 |
| Subject | [PATCH v2] mmc: dt-bindings: Add reg/source_cg/latch-ck for Mediatek MMC bindings |
| Message-ID | <urYWt-2C8-1@gated-at.bofh.it> |
Change the comptiable for support of multi-platform
Add description for reg
Add description for source_cg
Add description for mediatek,latch-ck
Note that source_cg and mediatek,latch-ck are optional for some projects,
eg, MT2701 do not have source_cg, and MT2712 do not need
mediatek,latch-ck
Signed-off-by: Chaotian Jing <chaotian.jing@mediatek.com>
---
Documentation/devicetree/bindings/mmc/mtk-sd.txt | 13 ++++++++++---
1 file changed, 10 insertions(+), 3 deletions(-)
diff --git a/Documentation/devicetree/bindings/mmc/mtk-sd.txt b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
index 4182ea3..405cd06 100644
--- a/Documentation/devicetree/bindings/mmc/mtk-sd.txt
+++ b/Documentation/devicetree/bindings/mmc/mtk-sd.txt
@@ -7,10 +7,15 @@ This file documents differences between the core properties in mmc.txt
and the properties used by the msdc driver.
Required properties:
-- compatible: Should be "mediatek,mt8173-mmc","mediatek,mt8135-mmc"
+- compatible: value should be either of the following.
+ "mediatek,mt8135-mmc": for mmc host ip compatible with mt8135
+ "mediatek,mt8173-mmc": for mmc host ip compatible with mt8173
+ "mediatek,mt2701-mmc": for mmc host ip compatible with mt2701
+ "mediatek,mt2712-mmc": for mmc host ip compatible with mt2712
+- reg: physical base address of the controller and length
- interrupts: Should contain MSDC interrupt number
-- clocks: MSDC source clock, HCLK
-- clock-names: "source", "hclk"
+- clocks: MSDC source clock, HCLK, source_cg
+- clock-names: "source", "hclk", "source_cg"
- pinctrl-names: should be "default", "state_uhs"
- pinctrl-0: should contain default/high speed pin ctrl
- pinctrl-1: should contain uhs mode pin ctrl
@@ -30,6 +35,8 @@ Optional properties:
- mediatek,hs400-cmd-resp-sel-rising: HS400 command response sample selection
If present,HS400 command responses are sampled on rising edges.
If not present,HS400 command responses are sampled on falling edges.
+- mediatek,latch-ck: Some projects do not support enhance_rx, need set correct latch-ck to avoid data crc
+ error caused by stop clock(fifo full)
Examples:
mmc0: mmc@11230000 {
--
1.8.1.1.dirty
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| From | Linus Walleij <linus.walleij@linaro.org> |
|---|---|
| Date | 2017-09-22 13:30 +0200 |
| Subject | Re: [PATCH v2] mmc: dt-bindings: Add reg/source_cg/latch-ck for Mediatek MMC bindings |
| Message-ID | <usujE-5v6-13@gated-at.bofh.it> |
| In reply to | #1736327 |
On Thu, Sep 21, 2017 at 3:52 AM, Chaotian Jing <chaotian.jing@mediatek.com> wrote: > +- mediatek,latch-ck: Some projects do not support enhance_rx, need set correct latch-ck to avoid data crc > + error caused by stop clock(fifo full) I think I wrote elsewhere: replace "projects" with "systems" or "SoCs". Yours, Linus Walleij
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| From | Chaotian Jing <chaotian.jing@mediatek.com> |
|---|---|
| Date | 2017-09-22 14:00 +0200 |
| Subject | Re: [PATCH v2] mmc: dt-bindings: Add reg/source_cg/latch-ck for Mediatek MMC bindings |
| Message-ID | <usuMF-5Em-3@gated-at.bofh.it> |
| In reply to | #1737423 |
On Fri, 2017-09-22 at 13:25 +0200, Linus Walleij wrote: > On Thu, Sep 21, 2017 at 3:52 AM, Chaotian Jing > <chaotian.jing@mediatek.com> wrote: > > > +- mediatek,latch-ck: Some projects do not support enhance_rx, need set correct latch-ck to avoid data crc > > + error caused by stop clock(fifo full) > > I think I wrote elsewhere: replace "projects" with "systems" or "SoCs". Sorry about that, will change to SoCs at v3. > > Yours, > Linus Walleij
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