From: Pradeep P V K <ppvk@codeaurora.org>
To: adrian.hunter@intel.com, georgi.djakov@linaro.org,
robh+dt@kernel.org, ulf.hansson@linaro.org,
asutoshd@codeaurora.org, vbadigan@codeaurora.org,
stummala@codeaurora.org, sayalil@codeaurora.org,
rampraka@codeaurora.org, sboyd@kernel.org
Cc: linux-mmc@vger.kernel.org, linux-kernel@vger.kernel.org,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
agross@kernel.org, linux-mmc-owner@vger.kernel.org,
Pradeep P V K <ppvk@codeaurora.org>
Subject: [RFC-v2 1/2] dt-bindings: mmc: sdhci-msm: Add Bus BW vote supported strings
Date: Fri, 8 Nov 2019 19:08:38 +0530 [thread overview]
Message-ID: <1573220319-4287-2-git-send-email-ppvk@codeaurora.org> (raw)
In-Reply-To: <1573220319-4287-1-git-send-email-ppvk@codeaurora.org>
Add Bus bandwidth voting supported strings for qcom-sdhci controller.
Signed-off-by: Pradeep P V K <ppvk@codeaurora.org>
---
.../devicetree/bindings/mmc/sdhci-msm.txt | 32 ++++++++++++++++++++++
1 file changed, 32 insertions(+)
diff --git a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
index da4edb1..22fb140 100644
--- a/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
+++ b/Documentation/devicetree/bindings/mmc/sdhci-msm.txt
@@ -39,6 +39,25 @@ Required properties:
"cal" - reference clock for RCLK delay calibration (optional)
"sleep" - sleep clock for RCLK delay calibration (optional)
+Optional Properties:
+* Following bus parameters are required for bus bw voting:
+- interconnects: Pairs of phandles and interconnect provider specifier
+ to denote the edge source and destination ports of
+ the interconnect path. Please refer to
+ Documentation/devicetree/bindings/interconnect/
+ for more details.
+- interconnect-names: List of interconnect path name strings sorted in the same
+ order as the interconnects property. Consumers drivers will use
+ interconnect-names to match interconnect paths with interconnect
+ specifiers. Please refer to Documentation/devicetree/bindings/
+ interconnect/ for more details.
+- msm-bus,name: string describing the bus path
+- msm-bus,num-cases: number of configurations in which sdhc can operate in
+- msm-bus,num-paths: number of paths to vote for
+- msm-bus,vectors-KBps: Takes a tuple <ib ab>, <ib ab> (2 tuples for 2
+ num-paths) The number of these entries *must*
+ be same as num-cases.
+
Example:
sdhc_1: sdhci@f9824900 {
@@ -56,6 +75,19 @@ Example:
clocks = <&gcc GCC_SDCC1_APPS_CLK>, <&gcc GCC_SDCC1_AHB_CLK>;
clock-names = "core", "iface";
+ interconnects = <&qnoc 50 &qnoc 512>,
+ <&qnoc 1 &qnoc 544>;
+ interconnect-names = "sdhc-ddr","cpu-sdhc";
+ msm-bus,name = "sdhc1";
+ msm-bus,num-cases = <3>;
+ msm-bus,num-paths = <2>;
+ msm-bus,vectors-KBps =
+ /* No Vote */
+ <0 0>, <0 0>,
+ /* 50 MB/s */
+ <130718 200000>, <133320 133320>,
+ /* 200 MB/s */
+ <1338562 4096000>, <1338562 4096000>;
};
sdhc_2: sdhci@f98a4900 {
--
1.9.1
next prev parent reply other threads:[~2019-11-08 13:45 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-11-08 13:38 [RFC-v2 0/2] Add Support for SDHC bus bandwidth voting Pradeep P V K
2019-11-08 13:38 ` Pradeep P V K [this message]
2019-11-13 13:16 ` [RFC-v2 1/2] dt-bindings: mmc: sdhci-msm: Add Bus BW vote supported strings Georgi Djakov
2019-12-09 14:41 ` ppvk
2019-11-08 13:38 ` [RFC-v2 2/2] mmc: sdhci-msm: Add support for bus bandwidth voting Pradeep P V K
2020-04-03 17:04 ` Doug Anderson
2020-04-08 12:58 ` ppvk
2020-04-08 14:34 ` Doug Anderson
2020-01-30 21:38 ` [RFC-v2 0/2] Add Support for SDHC " Matthias Kaehlcke
2020-02-03 7:20 ` ppvk
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