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Message-Id: <20240913103755.7290-3-quic_mukhopad@quicinc.com>
Date: Fri, 13 Sep 2024 16:07:52 +0530
From: Soutrik Mukhopadhyay <quic_mukhopad@...cinc.com>
To: vkoul@...nel.org, kishon@...nel.org, konradybcio@...nel.org,
andersson@...nel.org, simona@...ll.ch, dmitry.baryshkov@...aro.org,
abel.vesa@...aro.org, robdclark@...il.com, quic_abhinavk@...cinc.com,
sean@...rly.run, marijn.suijten@...ainline.org, airlied@...il.com,
daniel@...ll.ch, maarten.lankhorst@...ux.intel.com, mripard@...nel.org,
tzimmermann@...e.de, robh@...nel.org, krzk+dt@...nel.org,
conor+dt@...nel.org, quic_khsieh@...cinc.com, konrad.dybcio@...aro.org,
quic_parellan@...cinc.com, quic_bjorande@...cinc.com
Cc: Soutrik Mukhopadhyay <quic_mukhopad@...cinc.com>,
linux-arm-msm@...r.kernel.org, linux-phy@...ts.infradead.org,
linux-kernel@...r.kernel.org, dri-devel@...ts.freedesktop.org,
freedreno@...ts.freedesktop.org, devicetree@...r.kernel.org,
quic_riteshk@...cinc.com, quic_vproddut@...cinc.com
Subject: [PATCH v2 2/5] phy: qcom: edp: Introduce aux_cfg array for version specific aux settings
In order to support different HW versions, introduce aux_cfg array
to move v4 specific aux configuration settings.
Signed-off-by: Soutrik Mukhopadhyay <quic_mukhopad@...cinc.com>
---
v2: Fixed review comments from Bjorn and Dmitry
- Made aux_cfg array as const.
---
drivers/phy/qualcomm/phy-qcom-edp.c | 37 ++++++++++++++++++-----------
1 file changed, 23 insertions(+), 14 deletions(-)
diff --git a/drivers/phy/qualcomm/phy-qcom-edp.c b/drivers/phy/qualcomm/phy-qcom-edp.c
index da2b32fb5b45..bcd5aced9e06 100644
--- a/drivers/phy/qualcomm/phy-qcom-edp.c
+++ b/drivers/phy/qualcomm/phy-qcom-edp.c
@@ -90,6 +90,7 @@ struct phy_ver_ops {
struct qcom_edp_phy_cfg {
bool is_edp;
+ const u8 *aux_cfg;
const struct qcom_edp_swing_pre_emph_cfg *swing_pre_emph_cfg;
const struct phy_ver_ops *ver_ops;
};
@@ -186,11 +187,15 @@ static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = {
.pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3,
};
+static const u8 edp_phy_aux_cfg_v4[10] = {
+ 0x00, 0x13, 0x24, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03
+};
+
static int qcom_edp_phy_init(struct phy *phy)
{
struct qcom_edp *edp = phy_get_drvdata(phy);
+ u8 aux_cfg[10];
int ret;
- u8 cfg8;
ret = regulator_bulk_enable(ARRAY_SIZE(edp->supplies), edp->supplies);
if (ret)
@@ -200,6 +205,8 @@ static int qcom_edp_phy_init(struct phy *phy)
if (ret)
goto out_disable_supplies;
+ memcpy(aux_cfg, edp->cfg->aux_cfg, sizeof(aux_cfg));
+
writel(DP_PHY_PD_CTL_PWRDN | DP_PHY_PD_CTL_AUX_PWRDN |
DP_PHY_PD_CTL_PLL_PWRDN | DP_PHY_PD_CTL_DP_CLAMP_EN,
edp->edp + DP_PHY_PD_CTL);
@@ -222,22 +229,20 @@ static int qcom_edp_phy_init(struct phy *phy)
* even needed.
*/
if (edp->cfg->swing_pre_emph_cfg && !edp->is_edp)
- cfg8 = 0xb7;
- else
- cfg8 = 0x37;
+ aux_cfg[8] = 0xb7;
writel(0xfc, edp->edp + DP_PHY_MODE);
- writel(0x00, edp->edp + DP_PHY_AUX_CFG0);
- writel(0x13, edp->edp + DP_PHY_AUX_CFG1);
- writel(0x24, edp->edp + DP_PHY_AUX_CFG2);
- writel(0x00, edp->edp + DP_PHY_AUX_CFG3);
- writel(0x0a, edp->edp + DP_PHY_AUX_CFG4);
- writel(0x26, edp->edp + DP_PHY_AUX_CFG5);
- writel(0x0a, edp->edp + DP_PHY_AUX_CFG6);
- writel(0x03, edp->edp + DP_PHY_AUX_CFG7);
- writel(cfg8, edp->edp + DP_PHY_AUX_CFG8);
- writel(0x03, edp->edp + DP_PHY_AUX_CFG9);
+ writel(aux_cfg[0], edp->edp + DP_PHY_AUX_CFG0);
+ writel(aux_cfg[1], edp->edp + DP_PHY_AUX_CFG1);
+ writel(aux_cfg[2], edp->edp + DP_PHY_AUX_CFG2);
+ writel(aux_cfg[3], edp->edp + DP_PHY_AUX_CFG3);
+ writel(aux_cfg[4], edp->edp + DP_PHY_AUX_CFG4);
+ writel(aux_cfg[5], edp->edp + DP_PHY_AUX_CFG5);
+ writel(aux_cfg[6], edp->edp + DP_PHY_AUX_CFG6);
+ writel(aux_cfg[7], edp->edp + DP_PHY_AUX_CFG7);
+ writel(aux_cfg[8], edp->edp + DP_PHY_AUX_CFG8);
+ writel(aux_cfg[9], edp->edp + DP_PHY_AUX_CFG9);
writel(PHY_AUX_STOP_ERR_MASK | PHY_AUX_DEC_ERR_MASK |
PHY_AUX_SYNC_ERR_MASK | PHY_AUX_ALIGN_ERR_MASK |
@@ -519,16 +524,19 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v4 = {
};
static const struct qcom_edp_phy_cfg sc7280_dp_phy_cfg = {
+ .aux_cfg = edp_phy_aux_cfg_v4,
.ver_ops = &qcom_edp_phy_ops_v4,
};
static const struct qcom_edp_phy_cfg sc8280xp_dp_phy_cfg = {
+ .aux_cfg = edp_phy_aux_cfg_v4,
.swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
.ver_ops = &qcom_edp_phy_ops_v4,
};
static const struct qcom_edp_phy_cfg sc8280xp_edp_phy_cfg = {
.is_edp = true,
+ .aux_cfg = edp_phy_aux_cfg_v4,
.swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,
.ver_ops = &qcom_edp_phy_ops_v4,
};
@@ -707,6 +715,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v6 = {
};
static struct qcom_edp_phy_cfg x1e80100_phy_cfg = {
+ .aux_cfg = edp_phy_aux_cfg_v4,
.swing_pre_emph_cfg = &dp_phy_swing_pre_emph_cfg,
.ver_ops = &qcom_edp_phy_ops_v6,
};
--
2.17.1
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