Commit fd672888 authored by Yongxing Mou's avatar Yongxing Mou Committed by Vinod Koul
Browse files

phy: qcom: edp: Unify generic DP/eDP swing and pre-emphasis tables 



The current eDP and DP swing/pre-emphasis tables do not match the HPG
requirements for the supported platforms, correct the table accordingly.

The generic tables which can be shared as follows:

DP mode：
	-sa8775p/sc7280/sc8280xp/x1e80100
	-glymur
	-sc8180x
eDP mode(low vdiff):
	-glymur/sa8775p/sc8280xp/x1e80100
	-sc7280
	-sc8180x

The proper tables for SC8180X and SC7280 will be added in a later patch,
since they need separate table.

Cc: stable@vger.kernel.org
Fixes: f199223c ("phy: qcom: Introduce new eDP PHY driver")
Reviewed-by: default avatarKonrad Dybcio <konrad.dybcio@oss.qualcomm.com>
Reviewed-by: default avatarDmitry Baryshkov <dmitry.baryshkov@oss.qualcomm.com>
Signed-off-by: default avatarYongxing Mou <yongxing.mou@oss.qualcomm.com>
Link: https://patch.msgid.link/20260427-edp_phy-v5-1-3bb876824475@oss.qualcomm.com


Signed-off-by: default avatarVinod Koul <vkoul@kernel.org>
parent 254f4963

drivers/phy/qualcomm/phy-qcom-edp.c

+10 −31
Original line number Diff line number Diff line
@@ -116,17 +116,17 @@ struct qcom_edp { 
};



static const u8 dp_swing_hbr_rbr[4][4] = {

	{ 0x08, 0x0f, 0x16, 0x1f },

	{ 0x07, 0x0f, 0x16, 0x1f },

	{ 0x11, 0x1e, 0x1f, 0xff },

	{ 0x16, 0x1f, 0xff, 0xff },

	{ 0x1f, 0xff, 0xff, 0xff }

};



static const u8 dp_pre_emp_hbr_rbr[4][4] = {

	{ 0x00, 0x0d, 0x14, 0x1a },

	{ 0x00, 0x0e, 0x15, 0x1a },

	{ 0x00, 0x0e, 0x15, 0xff },

	{ 0x00, 0x0e, 0xff, 0xff },

	{ 0x03, 0xff, 0xff, 0xff }

	{ 0x04, 0xff, 0xff, 0xff }

};



static const u8 dp_swing_hbr2_hbr3[4][4] = {
@@ -158,7 +158,7 @@ static const u8 edp_swing_hbr_rbr[4][4] = { 
};



static const u8 edp_pre_emp_hbr_rbr[4][4] = {

	{ 0x05, 0x12, 0x17, 0x1d },

	{ 0x05, 0x11, 0x17, 0x1d },

	{ 0x05, 0x11, 0x18, 0xff },

	{ 0x06, 0x11, 0xff, 0xff },

	{ 0x00, 0xff, 0xff, 0xff }
@@ -172,10 +172,10 @@ static const u8 edp_swing_hbr2_hbr3[4][4] = { 
};



static const u8 edp_pre_emp_hbr2_hbr3[4][4] = {

	{ 0x08, 0x11, 0x17, 0x1b },

	{ 0x00, 0x0c, 0x13, 0xff },

	{ 0x05, 0x10, 0xff, 0xff },

	{ 0x00, 0xff, 0xff, 0xff }

	{ 0x0c, 0x15, 0x19, 0x1e },

	{ 0x0b, 0x15, 0x19, 0xff },

	{ 0x0e, 0x14, 0xff, 0xff },

	{ 0x0d, 0xff, 0xff, 0xff }

};



static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg = {
@@ -193,27 +193,6 @@ static const u8 edp_phy_vco_div_cfg_v4[4] = { 
	0x01, 0x01, 0x02, 0x00,

};



static const u8 edp_pre_emp_hbr_rbr_v5[4][4] = {

	{ 0x05, 0x11, 0x17, 0x1d },

	{ 0x05, 0x11, 0x18, 0xff },

	{ 0x06, 0x11, 0xff, 0xff },

	{ 0x00, 0xff, 0xff, 0xff }

};



static const u8 edp_pre_emp_hbr2_hbr3_v5[4][4] = {

	{ 0x0c, 0x15, 0x19, 0x1e },

	{ 0x0b, 0x15, 0x19, 0xff },

	{ 0x0e, 0x14, 0xff, 0xff },

	{ 0x0d, 0xff, 0xff, 0xff }

};



static const struct qcom_edp_swing_pre_emph_cfg edp_phy_swing_pre_emph_cfg_v5 = {

	.swing_hbr_rbr = &edp_swing_hbr_rbr,

	.swing_hbr3_hbr2 = &edp_swing_hbr2_hbr3,

	.pre_emphasis_hbr_rbr = &edp_pre_emp_hbr_rbr_v5,

	.pre_emphasis_hbr3_hbr2 = &edp_pre_emp_hbr2_hbr3_v5,

};



static const u8 edp_phy_aux_cfg_v5[DP_AUX_CFG_SIZE] = {

	0x00, 0x13, 0xa4, 0x00, 0x0a, 0x26, 0x0a, 0x03, 0x37, 0x03, 0x02, 0x02, 0x00,

};
@@ -564,7 +543,7 @@ static const struct qcom_edp_phy_cfg sa8775p_dp_phy_cfg = { 
	.is_edp = false,

	.aux_cfg = edp_phy_aux_cfg_v5,

	.vco_div_cfg = edp_phy_vco_div_cfg_v4,

	.swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg_v5,

	.swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,

	.ver_ops = &qcom_edp_phy_ops_v4,

};
@@ -945,7 +924,7 @@ static const struct phy_ver_ops qcom_edp_phy_ops_v8 = { 
static struct qcom_edp_phy_cfg glymur_phy_cfg = {

	.aux_cfg = edp_phy_aux_cfg_v8,

	.vco_div_cfg = edp_phy_vco_div_cfg_v8,

	.swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg_v5,

	.swing_pre_emph_cfg = &edp_phy_swing_pre_emph_cfg,

	.ver_ops = &qcom_edp_phy_ops_v8,

};