[PATCH V2 1/2] dt-bindings: mmc: sdhci-msm: Add SoC-specific compatible strings

Veerabhadrarao Badiganti
2018-11-12T06:38:23Z

Add SoC-specific compatible strings for qcom-sdhci controller.

Signed-off-by: Veerabhadrarao Badiganti <vbadigan@codeaurora.org>
---
Documentation/devicetree/bindings/mmc/sdhci-msm.txt | 21 +++++++++++++++++----
1 file changed, 17 insertions(+), 4 deletions(-)

diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
index 502b3b8..b72871a 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
@@ -4,12 +4,25 @@ This file documents differences between the core properties in mmc.txt
and the properties used by the sdhci-msm driver.

Required properties:
-- compatible: Should contain:
+- compatible: Should contain a SoC-specific string and a IP version string:
+ version strings:
"qcom,sdhci-msm-v4" for sdcc versions less than 5.0
- "qcom,sdhci-msm-v5" for sdcc versions >= 5.0
+ "qcom,sdhci-msm-v5" for sdcc version 5.0
For SDCC version 5.0.0, MCI registers are removed from SDCC
interface and some registers are moved to HC. New compatible
string is added to support this change - "qcom,sdhci-msm-v5".
+ full compatible strings with SoC and version:
+ "qcom,apq8084-sdhci", "qcom,sdhci-msm-v4"
+ "qcom,msm8974-sdhci", "qcom,sdhci-msm-v4"
+ "qcom,msm8916-sdhci", "qcom,sdhci-msm-v4"
+ "qcom,msm8992-sdhci", "qcom,sdhci-msm-v4"
+ "qcom,msm8996-sdhci", "qcom,sdhci-msm-v4"
+ "qcom,sdm845-sdhci", "qcom,sdhci-msm-v5"
+ "qcom,qcs404-sdhci", "qcom,sdhci-msm-v5"
+ NOTE that some old device tree files may be floating around that only
+ have the string "qcom,sdhci-msm-v4" without the SoC compatible string
+ but doing that should be considered a deprecated practice.
+
- reg: Base address and length of the register in the following order:
- Host controller register map (required)
- SD Core register map (required)
@@ -29,7 +42,7 @@ Required properties:
Example:

sdhc_1: sdhci@f9824900 {
- compatible = "qcom,sdhci-msm-v4";
+ compatible = "qcom,msm8974-sdhci", "qcom,sdhci-msm-v4";
reg = <0xf9824900 0x11c>, <0xf9824000 0x800>;
interrupts = <0 123 0>;
bus-width = <8>;
@@ -46,7 +59,7 @@ Example:
};

sdhc_2: sdhci@f98a4900 {
- compatible = "qcom,sdhci-msm-v4";
+ compatible = "qcom,msm8974-sdhci", "qcom,sdhci-msm-v4";
reg = <0xf98a4900 0x11c>, <0xf98a4000 0x800>;
interrupts = <0 125 0>;
bus-width = <4>;