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disp: msm: dp: update swing and pre-emp with new hardware settings

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Update the DP controller and PHY programming according to
the new hardware recommendations.

CRs-Fixed: 2458753
Change-Id: I1bce5915ba6ebbb250cc5c4aac907b0b287eece7
Signed-off-by: Ajay Singh Parmar <aparmar@codeaurora.org>
This commit is contained in:
Ajay Singh Parmar
2019-05-14 17:23:51 -07:00
parent c44165dd40
commit 9a54f87c18
5 changed files with 67 additions and 17 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
msm/dp/dp_catalog.c
View File

@@ -1530,7 +1530,7 @@ static void dp_catalog_ctrl_phy_lane_cfg(struct dp_catalog_ctrl *ctrl,
}
static void dp_catalog_ctrl_update_vx_px(struct dp_catalog_ctrl *ctrl,
u8 v_level, u8 p_level)
u8 v_level, u8 p_level, bool high)
{
struct dp_catalog_private *catalog;
struct dp_io_data *io_data;

2
msm/dp/dp_catalog.h
View File

@@ -104,7 +104,7 @@ struct dp_catalog_ctrl {
void (*phy_lane_cfg)(struct dp_catalog_ctrl *ctrl, bool flipped,
u8 lane_cnt);
void (*update_vx_px)(struct dp_catalog_ctrl *ctrl, u8 v_level,
u8 p_level);
u8 p_level, bool high);
void (*get_interrupt)(struct dp_catalog_ctrl *ctrl);
u32 (*read_hdcp_status)(struct dp_catalog_ctrl *ctrl);
void (*send_phy_pattern)(struct dp_catalog_ctrl *ctrl,

50
msm/dp/dp_catalog_v420.c
View File

@@ -32,6 +32,34 @@ static u8 const vm_voltage_swing[MAX_VOLTAGE_LEVELS][MAX_PRE_EMP_LEVELS] = {
{0xFF, 0xFF, 0xFF, 0xFF} /* sw1, 1.2 v, optional */
};
static u8 const dp_pre_emp_hbr2_hbr3[MAX_VOLTAGE_LEVELS][MAX_PRE_EMP_LEVELS] = {
{0x00, 0x0C, 0x15, 0x1A}, /* pe0, 0 db */
{0x02, 0x0E, 0x16, 0xFF}, /* pe1, 3.5 db */
{0x02, 0x11, 0xFF, 0xFF}, /* pe2, 6.0 db */
{0x04, 0xFF, 0xFF, 0xFF} /* pe3, 9.5 db */
};
static u8 const dp_swing_hbr2_hbr3[MAX_VOLTAGE_LEVELS][MAX_PRE_EMP_LEVELS] = {
{0x02, 0x12, 0x16, 0x1A}, /* sw0, 0.4v */
{0x09, 0x19, 0x1F, 0xFF}, /* sw1, 0.6v */
{0x10, 0x1F, 0xFF, 0xFF}, /* sw1, 0.8v */
{0x1F, 0xFF, 0xFF, 0xFF} /* sw1, 1.2v */
};
static u8 const dp_pre_emp_hbr_rbr[MAX_VOLTAGE_LEVELS][MAX_PRE_EMP_LEVELS] = {
{0x00, 0x0E, 0x15, 0x1A}, /* pe0, 0 db */
{0x00, 0x0E, 0x15, 0xFF}, /* pe1, 3.5 db */
{0x00, 0x0E, 0xFF, 0xFF}, /* pe2, 6.0 db */
{0x04, 0xFF, 0xFF, 0xFF} /* pe3, 9.5 db */
};
static u8 const dp_swing_hbr_rbr[MAX_VOLTAGE_LEVELS][MAX_PRE_EMP_LEVELS] = {
{0x08, 0x0F, 0x16, 0x1F}, /* sw0, 0.4v */
{0x11, 0x1E, 0x1F, 0xFF}, /* sw1, 0.6v */
{0x1A, 0x1F, 0xFF, 0xFF}, /* sw1, 0.8v */
{0x1F, 0xFF, 0xFF, 0xFF} /* sw1, 1.2v */
};
struct dp_catalog_io {
struct dp_io_data *dp_ahb;
struct dp_io_data *dp_aux;
@@ -212,11 +240,12 @@ static void dp_catalog_ctrl_phy_lane_cfg_v420(struct dp_catalog_ctrl *ctrl,
}
static void dp_catalog_ctrl_update_vx_px_v420(struct dp_catalog_ctrl *ctrl,
u8 v_level, u8 p_level)
u8 v_level, u8 p_level, bool high)
{
struct dp_catalog_private_v420 *catalog;
struct dp_io_data *io_data;
u8 value0, value1;
u32 version;
if (!ctrl || !((v_level < MAX_VOLTAGE_LEVELS)
&& (p_level < MAX_PRE_EMP_LEVELS))) {
@@ -224,12 +253,25 @@ static void dp_catalog_ctrl_update_vx_px_v420(struct dp_catalog_ctrl *ctrl,
return;
}
pr_debug("hw: v=%d p=%d, high=%d\n", v_level, p_level, high);
catalog = dp_catalog_get_priv_v420(ctrl);
pr_debug("hw: v=%d p=%d\n", v_level, p_level);
io_data = catalog->io->dp_ahb;
version = dp_read(catalog->exe_mode, io_data, DP_HW_VERSION);
value0 = vm_voltage_swing[v_level][p_level];
value1 = vm_pre_emphasis[v_level][p_level];
if (version == 0x10020003) {
if (high) {
value0 = dp_swing_hbr2_hbr3[v_level][p_level];
value1 = dp_pre_emp_hbr2_hbr3[v_level][p_level];
} else {
value0 = dp_swing_hbr_rbr[v_level][p_level];
value1 = dp_pre_emp_hbr_rbr[v_level][p_level];
}
} else {
value0 = vm_voltage_swing[v_level][p_level];
value1 = vm_pre_emphasis[v_level][p_level];
}
/* program default setting first */
io_data = catalog->io->dp_ln_tx0;

14
msm/dp/dp_ctrl.c
View File

@@ -211,9 +211,14 @@ static int dp_ctrl_update_sink_vx_px(struct dp_ctrl_private *ctrl,
static int dp_ctrl_update_vx_px(struct dp_ctrl_private *ctrl)
{
struct dp_link *link = ctrl->link;
bool high = false;
if (ctrl->link->link_params.bw_code == DP_LINK_BW_5_4 ||
ctrl->link->link_params.bw_code == DP_LINK_BW_8_1)
high = true;
ctrl->catalog->update_vx_px(ctrl->catalog,
link->phy_params.v_level, link->phy_params.p_level);
link->phy_params.v_level, link->phy_params.p_level, high);
return dp_ctrl_update_sink_vx_px(ctrl, link->phy_params.v_level,
link->phy_params.p_level);
@@ -396,9 +401,12 @@ static int dp_ctrl_link_training_2(struct dp_ctrl_private *ctrl)
ret = -EINVAL;
goto end;
}
if (pattern != DP_TRAINING_PATTERN_4)
pattern |= DP_LINK_SCRAMBLING_DISABLE;
ctrl->catalog->set_pattern(ctrl->catalog, pattern);
ret = dp_ctrl_train_pattern_set(ctrl,
pattern | DP_RECOVERED_CLOCK_OUT_EN);
ret = dp_ctrl_train_pattern_set(ctrl, pattern);
if (ret <= 0) {
ret = -EINVAL;
goto end;

16
msm/dp/dp_link.h
View File

@@ -13,17 +13,17 @@
#define DP_LINK_ENUM_STR(x) #x
enum dp_link_voltage_level {
DP_LINK_VOLTAGE_LEVEL_0 = 0,
DP_LINK_VOLTAGE_LEVEL_1 = 1,
DP_LINK_VOLTAGE_LEVEL_2 = 2,
DP_LINK_VOLTAGE_MAX = DP_LINK_VOLTAGE_LEVEL_2,
DP_LINK_VOLTAGE_LEVEL_0,
DP_LINK_VOLTAGE_LEVEL_1,
DP_LINK_VOLTAGE_LEVEL_2,
DP_LINK_VOLTAGE_MAX = DP_LINK_VOLTAGE_LEVEL_2,
};
enum dp_link_preemaphasis_level {
DP_LINK_PRE_EMPHASIS_LEVEL_0 = 0,
DP_LINK_PRE_EMPHASIS_LEVEL_1 = 1,
DP_LINK_PRE_EMPHASIS_LEVEL_2 = 2,
DP_LINK_PRE_EMPHASIS_MAX = DP_LINK_PRE_EMPHASIS_LEVEL_2,
DP_LINK_PRE_EMPHASIS_LEVEL_0,
DP_LINK_PRE_EMPHASIS_LEVEL_1,
DP_LINK_PRE_EMPHASIS_LEVEL_2,
DP_LINK_PRE_EMPHASIS_MAX = DP_LINK_PRE_EMPHASIS_LEVEL_2,
};
struct dp_link_sink_count {