From babd671c62e0c2ee9b58a663fe7d9e6f70b3bae3 Mon Sep 17 00:00:00 2001 From: Tony Truong Date: Wed, 23 Sep 2020 11:14:38 -0700 Subject: [PATCH] dt-bindings: arm: msm: update documentation for PCIe internal AUX CLK PCIe internal AUX clock frequency used to be either 1MHz or 19.2MHz. The devicetree entry was a boolean type to determine which frequency to program in PCIe controller. Newer chipsets may support other frequencies such as 16.6MHz. Update the devicetree entry so that it accepts a decimal value for the desired frequency to be programmed in PCIe controller. Change-Id: I5818f5973ddbbce4268eafb6e99202daeba4234a --- bindings/pci/pci-msm.txt | 9 +++++---- 1 file changed, 5 insertions(+), 4 deletions(-) diff --git a/bindings/pci/pci-msm.txt b/bindings/pci/pci-msm.txt index a864094c6b12..8a9fa1e1c6fe 100644 --- a/bindings/pci/pci-msm.txt +++ b/bindings/pci/pci-msm.txt @@ -229,10 +229,12 @@ interconnects: link into l1ss sleep while idle in l1ss. If this is omitted, the default timeout is 100ms. -- qcom,use-19p2mhz-aux-clk: +- qcom,aux-clk-freq: Usage: optional - Value type: - Definition: Set PCIe AUX clock frequency to 19.2MHz + Value type: + Definition: Override reset value for PCIe internal aux clock frequency. + Value will be the actual frequency rounded up to the nearest + decimal. For example, use 17 for 16.6MHz. - qcom,common-clk-en: Usage: optional @@ -504,7 +506,6 @@ Example qcom,link-check-max-count = <40> /* 200ms */ qcom,boot-option = <0x1>; qcom,drv-supported; - qcom,use-19p2mhz-aux-clk; qcom,common-clk-en; qcom,clk-power-manage-en; qcom,n-fts = <0x50>;