[PATCH 12/14] drm/msm/dp: move more AUX functions to dp_aux.c

[Dmitry Baryshkov <dmitry.baryshkov@linaro.org>]

Move several misnamed functions accessing AUX bus to dp_aux.c, further
cleaning up dp_catalog submodule.

Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
---
 drivers/gpu/drm/msm/dp/dp_aux.c     | 88 ++++++++++++++++++++++++++++++++++++-
 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, 107 insertions(+), 93 deletions(-)

diff --git a/drivers/gpu/drm/msm/dp/dp_aux.c b/drivers/gpu/drm/msm/dp/dp_aux.c
index 46e8a2e13ac1d1249fbad9b50a6d64c52d51cf38..7228955019b31f80257b86a470c9ef305b2549a0 100644
--- a/drivers/gpu/drm/msm/dp/dp_aux.c
+++ b/drivers/gpu/drm/msm/dp/dp_aux.c
@@ -405,7 +405,7 @@ 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;
@@ -593,6 +593,92 @@ 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 60ba6e0a204f536fd050591e891add17d286fb2d..754b30e35039618453df9ce863c0d2561fce2fda 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.c
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.c
@@ -81,8 +81,8 @@ 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;
 
@@ -115,77 +115,6 @@ 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 e2fdccc332f874458709593c68a1d1a46b6cc406..830d9164188c0f7520809a99fa409b473bbfbfa4 100644
--- a/drivers/gpu/drm/msm/dp/dp_catalog.h
+++ b/drivers/gpu/drm/msm/dp/dp_catalog.h
@@ -122,12 +122,6 @@ 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 aba925aab7ad7c6652e81004043864c1cb3ac370..72a46e9e319486bc4ec1f5c842d733bd55ce0a67 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 7903606fc9c249b4ec21949fe51240df90492103..58045d9a52e9a4d39362c3de623fa34acd5784ec 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