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Message-Id: <20241212-fd-dp-audio-fixup-v3-12-0b1c65e7dba3@linaro.org>
Date: Thu, 12 Dec 2024 01:41:47 +0200
From: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
To: Rob Clark <robdclark@...il.com>,
Abhinav Kumar <quic_abhinavk@...cinc.com>, Sean Paul <sean@...rly.run>,
Marijn Suijten <marijn.suijten@...ainline.org>,
David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
Paloma Arellano <quic_parellan@...cinc.com>
Cc: Douglas Anderson <dianders@...omium.org>,
Stephen Boyd <swboyd@...omium.org>, linux-arm-msm@...r.kernel.org,
dri-devel@...ts.freedesktop.org, freedreno@...ts.freedesktop.org,
linux-kernel@...r.kernel.org
Subject: [PATCH v3 12/14] drm/msm/dp: move more AUX functions to dp_aux.c
Move several misnamed functions accessing AUX bus to dp_aux.c, further
cleaning up dp_catalog submodule.
Reviewed-by: Stephen Boyd <swboyd@...omium.org>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@...aro.org>
---
drivers/gpu/drm/msm/dp/dp_aux.c | 94 ++++++++++++++++++++++++++++++++++++-
drivers/gpu/drm/msm/dp/dp_aux.h | 7 +++
drivers/gpu/drm/msm/dp/dp_catalog.c | 75 +----------------------------
drivers/gpu/drm/msm/dp/dp_catalog.h | 6 ---
drivers/gpu/drm/msm/dp/dp_ctrl.c | 4 +-
drivers/gpu/drm/msm/dp/dp_display.c | 18 ++++---
drivers/gpu/drm/msm/dp/dp_panel.c | 2 +-
7 files changed, 113 insertions(+), 93 deletions(-)
diff --git a/drivers/gpu/drm/msm/dp/dp_aux.c b/drivers/gpu/drm/msm/dp/dp_aux.c
index cdcab948ae7086964d9e913dadadacc333f46231..f8ea1754665afa37ff9dbaf3f883d94c48bf07b8 100644
--- a/drivers/gpu/drm/msm/dp/dp_aux.c
+++ b/drivers/gpu/drm/msm/dp/dp_aux.c
@@ -403,7 +403,7 @@ static ssize_t msm_dp_aux_transfer(struct drm_dp_aux *msm_dp_aux,
phy_calibrate(aux->phy);
}
/* reset aux if link is in connected state */
- if (msm_dp_catalog_link_is_connected(aux->catalog))
+ if (msm_dp_aux_is_link_connected(msm_dp_aux))
msm_dp_aux_reset(aux);
} else {
aux->retry_cnt = 0;
@@ -591,6 +591,98 @@ static int msm_dp_wait_hpd_asserted(struct drm_dp_aux *msm_dp_aux,
return ret;
}
+void msm_dp_aux_hpd_enable(struct drm_dp_aux *msm_dp_aux)
+{
+ struct msm_dp_aux_private *aux =
+ container_of(msm_dp_aux, struct msm_dp_aux_private, msm_dp_aux);
+ struct msm_dp_catalog *msm_dp_catalog = aux->catalog;
+ u32 reg;
+
+ /* Configure REFTIMER and enable it */
+ reg = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_REFTIMER);
+ reg |= DP_DP_HPD_REFTIMER_ENABLE;
+ msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_REFTIMER, reg);
+
+ /* Enable HPD */
+ msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_CTRL, DP_DP_HPD_CTRL_HPD_EN);
+}
+
+void msm_dp_aux_hpd_disable(struct drm_dp_aux *msm_dp_aux)
+{
+ struct msm_dp_aux_private *aux =
+ container_of(msm_dp_aux, struct msm_dp_aux_private, msm_dp_aux);
+ struct msm_dp_catalog *msm_dp_catalog = aux->catalog;
+ u32 reg;
+
+ reg = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_REFTIMER);
+ reg &= ~DP_DP_HPD_REFTIMER_ENABLE;
+ msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_REFTIMER, reg);
+
+ msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_CTRL, 0);
+}
+
+void msm_dp_aux_hpd_intr_enable(struct drm_dp_aux *msm_dp_aux)
+{
+ struct msm_dp_aux_private *aux =
+ container_of(msm_dp_aux, struct msm_dp_aux_private, msm_dp_aux);
+ struct msm_dp_catalog *msm_dp_catalog = aux->catalog;
+ u32 reg;
+
+ reg = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_MASK);
+ reg |= DP_DP_HPD_INT_MASK;
+ msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_MASK,
+ reg & DP_DP_HPD_INT_MASK);
+}
+
+void msm_dp_aux_hpd_intr_disable(struct drm_dp_aux *msm_dp_aux)
+{
+ struct msm_dp_aux_private *aux =
+ container_of(msm_dp_aux, struct msm_dp_aux_private, msm_dp_aux);
+ struct msm_dp_catalog *msm_dp_catalog = aux->catalog;
+ u32 reg;
+
+ reg = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_MASK);
+ reg &= ~DP_DP_HPD_INT_MASK;
+ msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_MASK,
+ reg & DP_DP_HPD_INT_MASK);
+}
+
+u32 msm_dp_aux_get_hpd_intr_status(struct drm_dp_aux *msm_dp_aux)
+{
+ struct msm_dp_aux_private *aux =
+ container_of(msm_dp_aux, struct msm_dp_aux_private, msm_dp_aux);
+ struct msm_dp_catalog *msm_dp_catalog = aux->catalog;
+ int isr, mask;
+
+ isr = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_STATUS);
+ msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_ACK,
+ (isr & DP_DP_HPD_INT_MASK));
+ mask = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_MASK);
+
+ /*
+ * We only want to return interrupts that are unmasked to the caller.
+ * However, the interrupt status field also contains other
+ * informational bits about the HPD state status, so we only mask
+ * out the part of the register that tells us about which interrupts
+ * are pending.
+ */
+ return isr & (mask | ~DP_DP_HPD_INT_MASK);
+}
+
+u32 msm_dp_aux_is_link_connected(struct drm_dp_aux *msm_dp_aux)
+{
+ struct msm_dp_aux_private *aux =
+ container_of(msm_dp_aux, struct msm_dp_aux_private, msm_dp_aux);
+ struct msm_dp_catalog *msm_dp_catalog = aux->catalog;
+ u32 status;
+
+ status = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_STATUS);
+ status >>= DP_DP_HPD_STATE_STATUS_BITS_SHIFT;
+ status &= DP_DP_HPD_STATE_STATUS_BITS_MASK;
+
+ return status;
+}
+
struct drm_dp_aux *msm_dp_aux_get(struct device *dev, struct msm_dp_catalog *catalog,
struct phy *phy,
bool is_edp)
diff --git a/drivers/gpu/drm/msm/dp/dp_aux.h b/drivers/gpu/drm/msm/dp/dp_aux.h
index 39c5b4c8596ab28d822493a6b4d479f5f786cdee..624395a41ed0a75ead4826e78d05ca21e8fb8967 100644
--- a/drivers/gpu/drm/msm/dp/dp_aux.h
+++ b/drivers/gpu/drm/msm/dp/dp_aux.h
@@ -17,6 +17,13 @@ void msm_dp_aux_init(struct drm_dp_aux *msm_dp_aux);
void msm_dp_aux_deinit(struct drm_dp_aux *msm_dp_aux);
void msm_dp_aux_reconfig(struct drm_dp_aux *msm_dp_aux);
+void msm_dp_aux_hpd_enable(struct drm_dp_aux *msm_dp_aux);
+void msm_dp_aux_hpd_disable(struct drm_dp_aux *msm_dp_aux);
+void msm_dp_aux_hpd_intr_enable(struct drm_dp_aux *msm_dp_aux);
+void msm_dp_aux_hpd_intr_disable(struct drm_dp_aux *msm_dp_aux);
+u32 msm_dp_aux_get_hpd_intr_status(struct drm_dp_aux *msm_dp_aux);
+u32 msm_dp_aux_is_link_connected(struct drm_dp_aux *msm_dp_aux);
+
struct phy;
struct drm_dp_aux *msm_dp_aux_get(struct device *dev, struct msm_dp_catalog *catalog,
struct phy *phy,
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.c b/drivers/gpu/drm/msm/dp/dp_catalog.c
index 2eea02fc4cca3f7183e97d0fc086b8d6fa27ad00..22e2b3147399c0dcce21b9138c24eb699660f21a 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -85,8 +85,8 @@ u32 msm_dp_catalog_aux_get_irq(struct msm_dp_catalog *msm_dp_catalog)
intr &= ~DP_INTERRUPT_STATUS1_MASK;
intr_ack = (intr & DP_INTERRUPT_STATUS1)
<< DP_INTERRUPT_STATUS_ACK_SHIFT;
- msm_dp_write_ahb(msm_dp_catalog, REG_DP_INTR_STATUS, intr_ack |
- DP_INTERRUPT_STATUS1_MASK);
+ msm_dp_write_ahb(msm_dp_catalog, REG_DP_INTR_STATUS,
+ intr_ack | DP_INTERRUPT_STATUS1_MASK);
return intr;
@@ -119,77 +119,6 @@ void msm_dp_catalog_ctrl_enable_irq(struct msm_dp_catalog *msm_dp_catalog,
}
}
-void msm_dp_catalog_hpd_config_intr(struct msm_dp_catalog *msm_dp_catalog,
- u32 intr_mask, bool en)
-{
- struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
- struct msm_dp_catalog_private, msm_dp_catalog);
-
- u32 config = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_MASK);
-
- config = (en ? config | intr_mask : config & ~intr_mask);
-
- drm_dbg_dp(catalog->drm_dev, "intr_mask=%#x config=%#x\n",
- intr_mask, config);
- msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_MASK,
- config & DP_DP_HPD_INT_MASK);
-}
-
-void msm_dp_catalog_ctrl_hpd_enable(struct msm_dp_catalog *msm_dp_catalog)
-{
- u32 reftimer = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_REFTIMER);
-
- /* Configure REFTIMER and enable it */
- reftimer |= DP_DP_HPD_REFTIMER_ENABLE;
- msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_REFTIMER, reftimer);
-
- /* Enable HPD */
- msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_CTRL, DP_DP_HPD_CTRL_HPD_EN);
-}
-
-void msm_dp_catalog_ctrl_hpd_disable(struct msm_dp_catalog *msm_dp_catalog)
-{
- u32 reftimer = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_REFTIMER);
-
- reftimer &= ~DP_DP_HPD_REFTIMER_ENABLE;
- msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_REFTIMER, reftimer);
-
- msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_CTRL, 0);
-}
-
-u32 msm_dp_catalog_link_is_connected(struct msm_dp_catalog *msm_dp_catalog)
-{
- struct msm_dp_catalog_private *catalog = container_of(msm_dp_catalog,
- struct msm_dp_catalog_private, msm_dp_catalog);
- u32 status;
-
- status = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_STATUS);
- drm_dbg_dp(catalog->drm_dev, "aux status: %#x\n", status);
- status >>= DP_DP_HPD_STATE_STATUS_BITS_SHIFT;
- status &= DP_DP_HPD_STATE_STATUS_BITS_MASK;
-
- return status;
-}
-
-u32 msm_dp_catalog_hpd_get_intr_status(struct msm_dp_catalog *msm_dp_catalog)
-{
- int isr, mask;
-
- isr = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_STATUS);
- msm_dp_write_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_ACK,
- (isr & DP_DP_HPD_INT_MASK));
- mask = msm_dp_read_aux(msm_dp_catalog, REG_DP_DP_HPD_INT_MASK);
-
- /*
- * We only want to return interrupts that are unmasked to the caller.
- * However, the interrupt status field also contains other
- * informational bits about the HPD state status, so we only mask
- * out the part of the register that tells us about which interrupts
- * are pending.
- */
- return isr & (mask | ~DP_DP_HPD_INT_MASK);
-}
-
u32 msm_dp_catalog_ctrl_read_psr_interrupt_status(struct msm_dp_catalog *msm_dp_catalog)
{
u32 intr, intr_ack;
diff --git a/drivers/gpu/drm/msm/dp/dp_catalog.h b/drivers/gpu/drm/msm/dp/dp_catalog.h
index a6d662f5a0d95cdb8f40a9d03be1e7627907b176..789403e332c1a2108ded4f96b049fd00bb34e326 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.h
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.h
@@ -118,12 +118,6 @@ u32 msm_dp_catalog_aux_get_irq(struct msm_dp_catalog *msm_dp_catalog);
/* DP Controller APIs */
u32 msm_dp_catalog_hw_revision(const struct msm_dp_catalog *msm_dp_catalog);
void msm_dp_catalog_ctrl_enable_irq(struct msm_dp_catalog *msm_dp_catalog, bool enable);
-void msm_dp_catalog_hpd_config_intr(struct msm_dp_catalog *msm_dp_catalog,
- u32 intr_mask, bool en);
-void msm_dp_catalog_ctrl_hpd_enable(struct msm_dp_catalog *msm_dp_catalog);
-void msm_dp_catalog_ctrl_hpd_disable(struct msm_dp_catalog *msm_dp_catalog);
-u32 msm_dp_catalog_link_is_connected(struct msm_dp_catalog *msm_dp_catalog);
-u32 msm_dp_catalog_hpd_get_intr_status(struct msm_dp_catalog *msm_dp_catalog);
int msm_dp_catalog_ctrl_get_interrupt(struct msm_dp_catalog *msm_dp_catalog);
void msm_dp_catalog_ctrl_config_psr_interrupt(struct msm_dp_catalog *msm_dp_catalog);
u32 msm_dp_catalog_ctrl_read_psr_interrupt_status(struct msm_dp_catalog *msm_dp_catalog);
diff --git a/drivers/gpu/drm/msm/dp/dp_ctrl.c b/drivers/gpu/drm/msm/dp/dp_ctrl.c
index cde667bf8eeec95035b2feb3661686c99acf5b7d..5f32ee2fa0438cd12726540a59ab4849d47ee8c2 100644
--- a/drivers/gpu/drm/msm/dp/dp_ctrl.c
+++ b/drivers/gpu/drm/msm/dp/dp_ctrl.c
@@ -2162,7 +2162,7 @@ int msm_dp_ctrl_on_link(struct msm_dp_ctrl *msm_dp_ctrl)
break;
} else if (training_step == DP_TRAINING_1) {
/* link train_1 failed */
- if (!msm_dp_catalog_link_is_connected(ctrl->catalog))
+ if (!msm_dp_aux_is_link_connected(ctrl->aux))
break;
msm_dp_ctrl_read_link_status(ctrl, link_status);
@@ -2187,7 +2187,7 @@ int msm_dp_ctrl_on_link(struct msm_dp_ctrl *msm_dp_ctrl)
}
} else if (training_step == DP_TRAINING_2) {
/* link train_2 failed */
- if (!msm_dp_catalog_link_is_connected(ctrl->catalog))
+ if (!msm_dp_aux_is_link_connected(ctrl->aux))
break;
msm_dp_ctrl_read_link_status(ctrl, link_status);
diff --git a/drivers/gpu/drm/msm/dp/dp_display.c b/drivers/gpu/drm/msm/dp/dp_display.c
index aff51bb973ebe0835c96420d16547ebae0c6c0f2..cb02d5d5b404925707c737ed75e9e83fbec34f83 100644
--- a/drivers/gpu/drm/msm/dp/dp_display.c
+++ b/drivers/gpu/drm/msm/dp/dp_display.c
@@ -1145,7 +1145,7 @@ static irqreturn_t msm_dp_display_irq_handler(int irq, void *dev_id)
return IRQ_NONE;
}
- hpd_isr_status = msm_dp_catalog_hpd_get_intr_status(dp->catalog);
+ hpd_isr_status = msm_dp_aux_get_hpd_intr_status(dp->aux);
if (hpd_isr_status & 0x0F) {
drm_dbg_dp(dp->drm_dev, "type=%d isr=0x%x\n",
@@ -1360,7 +1360,7 @@ static int msm_dp_pm_runtime_suspend(struct device *dev)
if (dp->msm_dp_display.is_edp) {
msm_dp_display_host_phy_exit(dp);
- msm_dp_catalog_ctrl_hpd_disable(dp->catalog);
+ msm_dp_aux_hpd_disable(dp->aux);
}
msm_dp_display_host_deinit(dp);
@@ -1381,7 +1381,7 @@ static int msm_dp_pm_runtime_resume(struct device *dev)
*/
msm_dp_display_host_init(dp);
if (dp->msm_dp_display.is_edp) {
- msm_dp_catalog_ctrl_hpd_enable(dp->catalog);
+ msm_dp_aux_hpd_enable(dp->aux);
msm_dp_display_host_phy_init(dp);
}
@@ -1668,10 +1668,8 @@ void msm_dp_bridge_hpd_enable(struct drm_bridge *bridge)
return;
}
- msm_dp_catalog_ctrl_hpd_enable(dp->catalog);
-
- /* enable HDP interrupts */
- msm_dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_INT_MASK, true);
+ msm_dp_aux_hpd_enable(dp->aux);
+ msm_dp_aux_hpd_intr_enable(dp->aux);
msm_dp_display->internal_hpd = true;
mutex_unlock(&dp->event_mutex);
@@ -1684,9 +1682,9 @@ void msm_dp_bridge_hpd_disable(struct drm_bridge *bridge)
struct msm_dp_display_private *dp = container_of(msm_dp_display, struct msm_dp_display_private, msm_dp_display);
mutex_lock(&dp->event_mutex);
- /* disable HDP interrupts */
- msm_dp_catalog_hpd_config_intr(dp->catalog, DP_DP_HPD_INT_MASK, false);
- msm_dp_catalog_ctrl_hpd_disable(dp->catalog);
+
+ msm_dp_aux_hpd_intr_disable(dp->aux);
+ msm_dp_aux_hpd_disable(dp->aux);
msm_dp_display->internal_hpd = false;
diff --git a/drivers/gpu/drm/msm/dp/dp_panel.c b/drivers/gpu/drm/msm/dp/dp_panel.c
index cd91de21c8e658570b8d43251ef815981f801ae4..25869e2ac93aba0bffeddae9f95917d81870d8cb 100644
--- a/drivers/gpu/drm/msm/dp/dp_panel.c
+++ b/drivers/gpu/drm/msm/dp/dp_panel.c
@@ -165,7 +165,7 @@ int msm_dp_panel_read_sink_caps(struct msm_dp_panel *msm_dp_panel,
if (!msm_dp_panel->drm_edid) {
DRM_ERROR("panel edid read failed\n");
/* check edid read fail is due to unplug */
- if (!msm_dp_catalog_link_is_connected(panel->catalog)) {
+ if (!msm_dp_aux_is_link_connected(panel->aux)) {
rc = -ETIMEDOUT;
goto end;
}
--
2.39.5
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