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From: Neil Armstrong <neil.armstrong@linaro.org>
Date: Fri, 22 Mar 2024 10:42:41 +0100
Subject: [PATCH v2 4/7] phy: qcom: qmp-pcie: register PHY AUX clock for
 SM8[456]50 4x2 PCIe PHY
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Message-Id: <20240322-topic-sm8x50-upstream-pcie-1-phy-aux-clk-v2-4-3ec0a966d52f@linaro.org>
References: <20240322-topic-sm8x50-upstream-pcie-1-phy-aux-clk-v2-0-3ec0a966d52f@linaro.org>
In-Reply-To: <20240322-topic-sm8x50-upstream-pcie-1-phy-aux-clk-v2-0-3ec0a966d52f@linaro.org>
To: Bjorn Andersson <andersson@kernel.org>, 
 Konrad Dybcio <konrad.dybcio@linaro.org>, Vinod Koul <vkoul@kernel.org>, 
 Kishon Vijay Abraham I <kishon@kernel.org>, Rob Herring <robh@kernel.org>, 
 Krzysztof Kozlowski <krzysztof.kozlowski+dt@linaro.org>, 
 Conor Dooley <conor+dt@kernel.org>
Cc: linux-arm-msm@vger.kernel.org, linux-phy@lists.infradead.org, 
 devicetree@vger.kernel.org, linux-kernel@vger.kernel.org, 
 Neil Armstrong <neil.armstrong@linaro.org>, 
 Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

The PCIe Gen4x2 PHY found in the SM8[456]50 SoCs have a second clock,
enable this second clock by setting the proper 20MHz hardware rate in
the Gen4x2 SM8[456]50 aux_clock_rate config fields.

Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Neil Armstrong <neil.armstrong@linaro.org>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 6c9a95e62429..e3103bcc24c4 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -3141,6 +3141,9 @@ static const struct qmp_phy_cfg sm8450_qmp_gen4x2_pciephy_cfg = {
 
 	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
 	.phy_status		= PHYSTATUS_4_20,
+
+	/* 20MHz PHY AUX Clock */
+	.aux_clock_rate		= 20000000,
 };
 
 static const struct qmp_phy_cfg sm8550_qmp_gen3x2_pciephy_cfg = {
@@ -3198,6 +3201,9 @@ static const struct qmp_phy_cfg sm8550_qmp_gen4x2_pciephy_cfg = {
 	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
 	.phy_status		= PHYSTATUS_4_20,
 	.has_nocsr_reset	= true,
+
+	/* 20MHz PHY AUX Clock */
+	.aux_clock_rate		= 20000000,
 };
 
 static const struct qmp_phy_cfg sm8650_qmp_gen4x2_pciephy_cfg = {
@@ -3228,6 +3234,9 @@ static const struct qmp_phy_cfg sm8650_qmp_gen4x2_pciephy_cfg = {
 	.pwrdn_ctrl		= SW_PWRDN | REFCLK_DRV_DSBL,
 	.phy_status		= PHYSTATUS_4_20,
 	.has_nocsr_reset	= true,
+
+	/* 20MHz PHY AUX Clock */
+	.aux_clock_rate		= 20000000,
 };
 
 static const struct qmp_phy_cfg sa8775p_qmp_gen4x2_pciephy_cfg = {

-- 
2.34.1