linux-kernel - [PATCH 1/2] phy: qcom-qmp-pcie: split pcs

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Message-Id: <20221103212125.17156-1-ansuelsmth@gmail.com>
Date:   Thu,  3 Nov 2022 22:21:24 +0100
From:   Christian Marangi <ansuelsmth@...il.com>
To:     Andy Gross <agross@...nel.org>,
        Bjorn Andersson <andersson@...nel.org>,
        Konrad Dybcio <konrad.dybcio@...ainline.org>,
        Rob Herring <robh+dt@...nel.org>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Vinod Koul <vkoul@...nel.org>,
        Kishon Vijay Abraham I <kishon@...nel.org>,
        Dmitry Baryshkov <dmitry.baryshkov@...aro.org>,
        linux-arm-msm@...r.kernel.org, devicetree@...r.kernel.org,
        linux-kernel@...r.kernel.org, linux-phy@...ts.infradead.org
Cc:     Christian Marangi <ansuelsmth@...il.com>,
        Robert Marko <robimarko@...il.com>
Subject: [PATCH 1/2] phy: qcom-qmp-pcie: split pcs_misc init cfg for ipq8074 pcs table

Commit af6643242d3a ("phy: qcom-qmp-pcie: split pcs_misc region for ipq6018
pcie gen3") reworked the pcs regs values and removed the 0x400 offset
for each pcs_misc regs.

This change caused the malfunction of ipq8074 downstream since it still
has the legacy pcs table where pcs_misc are not placed on a different
table and instead put together assuming the offset of 0x400 for the
related pcs_misc regs.

Split pcs_misc init cfg from the ipq8074 pcs init table to be handled
correctly to prepare for actual support for gen3 pcie for ipq8074.

Fixes: af6643242d3a ("phy: qcom-qmp-pcie: split pcs_misc region for ipq6018 pcie gen3")
Reported-by: Robert Marko <robimarko@...il.com>
Tested-by: Robert Marko <robimarko@...il.com>
Signed-off-by: Christian Marangi <ansuelsmth@...il.com>
---
 drivers/phy/qualcomm/phy-qcom-qmp-pcie.c | 13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
index 7c81667dd968..d699fb4f7436 100644
--- a/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
+++ b/drivers/phy/qualcomm/phy-qcom-qmp-pcie.c
@@ -485,6 +485,13 @@ static const struct qmp_phy_init_tbl ipq8074_pcie_gen3_pcs_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_FLL_CNTRL1, 0x01),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_P2U3_WAKEUP_DLY_TIME_AUXCLK_H, 0x0),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_P2U3_WAKEUP_DLY_TIME_AUXCLK_L, 0x1),
+	QMP_PHY_INIT_CFG(QPHY_V4_PCS_G12S1_TXDEEMPH_M3P5DB, 0x10),
+	QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_DCC_CAL_CONFIG, 0x01),
+	QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xaa),
+	QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x0d),
+};
+
+static const struct qmp_phy_init_tbl ipq8074_pcie_gen3_pcs_misc_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_OSC_DTCT_ACTIONS, 0x0),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_L1P1_WAKEUP_DLY_TIME_AUXCLK_H, 0x00),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_L1P1_WAKEUP_DLY_TIME_AUXCLK_L, 0x01),
@@ -497,11 +504,7 @@ static const struct qmp_phy_init_tbl ipq8074_pcie_gen3_pcs_tbl[] = {
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_OSC_DTCT_MODE2_CONFIG2, 0x50),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_OSC_DTCT_MODE2_CONFIG4, 0x1a),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_OSC_DTCT_MODE2_CONFIG5, 0x6),
-	QMP_PHY_INIT_CFG(QPHY_V4_PCS_G12S1_TXDEEMPH_M3P5DB, 0x10),
 	QMP_PHY_INIT_CFG(QPHY_V4_PCS_PCIE_ENDPOINT_REFCLK_DRIVE, 0xc1),
-	QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_DCC_CAL_CONFIG, 0x01),
-	QMP_PHY_INIT_CFG(QPHY_V4_PCS_RX_SIGDET_LVL, 0xaa),
-	QMP_PHY_INIT_CFG(QPHY_V4_PCS_REFGEN_REQ_CONFIG1, 0x0d),
 };
 
 static const struct qmp_phy_init_tbl sdm845_qmp_pcie_serdes_tbl[] = {
@@ -1506,6 +1509,8 @@ static const struct qmp_phy_cfg ipq8074_pciephy_gen3_cfg = {
 		.rx_num		= ARRAY_SIZE(ipq8074_pcie_gen3_rx_tbl),
 		.pcs		= ipq8074_pcie_gen3_pcs_tbl,
 		.pcs_num	= ARRAY_SIZE(ipq8074_pcie_gen3_pcs_tbl),
+		.pcs_misc	= ipq8074_pcie_gen3_pcs_misc_tbl,
+		.pcs_misc_num	= ARRAY_SIZE(ipq8074_pcie_gen3_pcs_misc_tbl),
 	},
 	.clk_list		= ipq8074_pciephy_clk_l,
 	.num_clks		= ARRAY_SIZE(ipq8074_pciephy_clk_l),
-- 
2.37.2