From: Krishna Kurapati <quic_kriskura@quicinc.com>
To: Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>,
Rob Herring <robh+dt@kernel.org>, Andy Gross <agross@kernel.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Vinod Koul <vkoul@kernel.org>,
Wesley Cheng <quic_wcheng@quicinc.com>,
Konrad Dybcio <konrad.dybcio@somainline.org>,
Kishon Vijay Abraham I <kishon@ti.com>,
Philipp Zabel <p.zabel@pengutronix.de>,
Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
Stephen Boyd <swboyd@chromium.org>,
Doug Anderson <dianders@chromium.org>
Cc: <devicetree@vger.kernel.org>, <linux-arm-msm@vger.kernel.org>,
<linux-usb@vger.kernel.org>, <linux-kernel@vger.kernel.org>,
<linux-phy@lists.infradead.org>, <quic_pkondeti@quicinc.com>,
<quic_ppratap@quicinc.com>, <quic_vpulyala@quicinc.com>,
Krishna Kurapati <quic_kriskura@quicinc.com>
Subject: [PATCH v12 0/3] Add QCOM SNPS PHY overriding params support
Date: Sat, 3 Sep 2022 16:00:45 +0530 [thread overview]
Message-ID: <1662201048-26049-1-git-send-email-quic_kriskura@quicinc.com> (raw)
Added support for overriding tuning parameters in QCOM SNPS PHY
from device tree. This parameter tuning is required to tune the
hs signal on dp/dm lines for electrical compliance to be successful.
Changes in v12:
Fixed nitpicks in driver code.
Changes in v11:
Made changes to logs added in phy driver.
Fixed nitpicks in code.
Changes in v10:
Fixed patch headers.
changes in v9:
Fixed nitpick in driver code.
changes in v8:
Fixed nitpick in driver code.
changes in v7:
Fixed nitpick in driver code and dtsi file.
changes in v6:
Fixed errors in dt-bindings.
Fixed nitpick in driver code.
changes in v5:
Fixed nitpicks in code.
Added minimum and maximum for each parameter added in dt-bindings.
Added proper suffixes to each parameter as per dtschema.
changes in v4:
Fixed nitpicks in code.
Initial compliance test results showed overshoot in the middle of eye
diagram. The current dt values were put in place to correct it and fix
overshoot issue.
changes in v3:
Added support for phy tuning parameters to be represented in bps and
corresponding register values to be written are obtained by traversing
through data map declared in the driver.
changes in v2:
Reading the individual fields in each overriding register from
device tree.
Krishna Kurapati (2):
phy: qcom-snps: Add support for overriding phy tuning parameters
arm64: dts: qcom: sc7280: Update SNPS Phy params for SC7280 IDP device
Sandeep Maheswaram (1):
dt-bindings: phy: qcom,usb-snps-femto-v2: Add phy override params
bindings
.../bindings/phy/qcom,usb-snps-femto-v2.yaml | 88 +++++++
arch/arm64/boot/dts/qcom/sc7280-idp.dtsi | 6 +
drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 252 ++++++++++++++++++++-
3 files changed, 344 insertions(+), 2 deletions(-)
--
2.7.4
next reply other threads:[~2022-09-03 10:31 UTC|newest]
Thread overview: 8+ messages / expand[flat|nested] mbox.gz Atom feed top
2022-09-03 10:30 Krishna Kurapati [this message]
2022-09-03 10:30 ` [PATCH v12 1/3] dt-bindings: phy: qcom,usb-snps-femto-v2: Add phy override params bindings Krishna Kurapati
2022-09-03 10:30 ` [PATCH v12 2/3] phy: qcom-snps: Add support for overriding phy tuning parameters Krishna Kurapati
2022-09-06 2:45 ` Bjorn Andersson
2022-09-06 2:48 ` Krishna Kurapati PSSNV
2022-09-03 10:30 ` [PATCH v12 3/3] arm64: dts: qcom: sc7280: Update SNPS Phy params for SC7280 IDP device Krishna Kurapati
2022-09-06 16:12 [PATCH v12 0/3] Add QCOM SNPS PHY overriding params support Krishna Kurapati
2022-09-06 16:14 ` Krishna Kurapati PSSNV
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