From: Marijn Suijten <marijn.suijten@somainline.org>
To: phone-devel@vger.kernel.org
Cc: ~postmarketos/upstreaming@lists.sr.ht,
AngeloGioacchino Del Regno
<angelogioacchino.delregno@somainline.org>,
Konrad Dybcio <konrad.dybcio@somainline.org>,
Martin Botka <martin.botka@somainline.org>,
Jami Kettunen <jami.kettunen@somainline.org>,
Pavel Dubrova <pashadubrova@gmail.com>,
Marijn Suijten <marijn.suijten@somainline.org>,
Dmitry Baryshkov <dmitry.baryshkov@linaro.org>,
Bjorn Andersson <bjorn.andersson@linaro.org>,
Andy Gross <agross@kernel.org>, Rob Herring <robh+dt@kernel.org>,
linux-arm-msm@vger.kernel.org, devicetree@vger.kernel.org,
linux-kernel@vger.kernel.org
Subject: [PATCH 1/3] arm: dts: qcom: apq8064: Use 27MHz PXO clock as DSI PLL reference
Date: Sun, 29 Aug 2021 22:30:25 +0200 [thread overview]
Message-ID: <20210829203027.276143-2-marijn.suijten@somainline.org> (raw)
In-Reply-To: <20210829203027.276143-1-marijn.suijten@somainline.org>
The 28NM DSI PLL driver for msm8960 calculates with a 27MHz reference
clock and should hence use PXO, not CXO which runs at 19.2MHz.
Note that none of the DSI PHY/PLL drivers currently use this "ref"
clock; they all rely on (sometimes inexistant) global clock names and
usually function normally without a parent clock. This discrepancy will
be corrected in a future patch, for which this change needs to be in
place first.
Cc: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Marijn Suijten <marijn.suijten@somainline.org>
---
arch/arm/boot/dts/qcom-apq8064.dtsi | 4 ++--
1 file changed, 2 insertions(+), 2 deletions(-)
diff --git a/arch/arm/boot/dts/qcom-apq8064.dtsi b/arch/arm/boot/dts/qcom-apq8064.dtsi
index 2687c4e890ba..77659b783759 100644
--- a/arch/arm/boot/dts/qcom-apq8064.dtsi
+++ b/arch/arm/boot/dts/qcom-apq8064.dtsi
@@ -198,7 +198,7 @@ cxo_board: cxo_board {
clock-frequency = <19200000>;
};
- pxo_board {
+ pxo_board: pxo_board {
compatible = "fixed-clock";
#clock-cells = <0>;
clock-frequency = <27000000>;
@@ -1306,7 +1306,7 @@ dsi0_phy: dsi-phy@4700200 {
reg-names = "dsi_pll", "dsi_phy", "dsi_phy_regulator";
clock-names = "iface_clk", "ref";
clocks = <&mmcc DSI_M_AHB_CLK>,
- <&cxo_board>;
+ <&pxo_board>;
};
--
2.33.0
next parent reply other threads:[~2021-08-29 20:30 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <20210829203027.276143-1-marijn.suijten@somainline.org>
2021-08-29 20:30 ` Marijn Suijten [this message]
2021-08-30 1:18 ` [PATCH 1/3] arm: dts: qcom: apq8064: Use 27MHz PXO clock as DSI PLL reference Dmitry Baryshkov
2021-08-30 8:28 ` Marijn Suijten
2021-08-30 13:24 ` Dmitry Baryshkov
2021-08-30 14:13 ` Marijn Suijten
2021-08-30 14:18 ` Dmitry Baryshkov
2021-08-30 14:25 ` Marijn Suijten
2021-08-30 15:17 ` Bjorn Andersson
2021-08-30 15:37 ` Marijn Suijten
2021-08-30 15:58 ` Bjorn Andersson
2021-08-30 18:33 ` Marijn Suijten
2021-08-29 20:30 ` [PATCH 2/3] drm/msm/dsi: Use "ref" fw clock instead of global name for VCO parent Marijn Suijten
2021-08-29 20:39 ` Dmitry Baryshkov
2021-08-29 21:53 ` Marijn Suijten
2021-08-30 1:17 ` Dmitry Baryshkov
2021-08-30 14:22 ` Marijn Suijten
2021-08-29 20:30 ` [PATCH 3/3] clk: qcom: gcc-sdm660: Remove transient global "xo" clock Marijn Suijten
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