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Date: Fri, 12 Dec 2014 12:35:18 -0500
From: Hai Li <hali@...eaurora.org>
To: dri-devel@...ts.freedesktop.org
Cc: linux-arm-msm@...r.kernel.org, linux-kernel@...r.kernel.org,
robdclark@...il.com, Hai Li <hali@...eaurora.org>
Subject: [PATCH 2/2] drm/msm: Add the eDP connector in msm drm driver
Modified the hard-coded hdmi connector/encoder implementations in msm drm
driver to support both edp and hdmi.
Signed-off-by: Hai Li <hali@...eaurora.org>
---
drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c | 38 +++++++++++++++++++++++--
drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c | 43 ++++++++++++++++++++---------
drivers/gpu/drm/msm/msm_drv.c | 2 ++
drivers/gpu/drm/msm/msm_drv.h | 6 ++++
4 files changed, 74 insertions(+), 15 deletions(-)
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
index 3ce82be..dd2e5fa 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_encoder.c
@@ -1,4 +1,5 @@
/*
+ * Copyright (c) 2014, The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@...il.com>
*
@@ -162,11 +163,13 @@ static void mdp5_encoder_mode_set(struct drm_encoder *encoder,
{
struct mdp5_encoder *mdp5_encoder = to_mdp5_encoder(encoder);
struct mdp5_kms *mdp5_kms = get_kms(encoder);
+ struct drm_device *dev = encoder->dev;
+ struct drm_connector *connector;
int intf = mdp5_encoder->intf;
uint32_t dtv_hsync_skew, vsync_period, vsync_len, ctrl_pol;
uint32_t display_v_start, display_v_end;
uint32_t hsync_start_x, hsync_end_x;
- uint32_t format;
+ uint32_t format = 0x2100;
unsigned long flags;
mode = adjusted_mode;
@@ -188,7 +191,28 @@ static void mdp5_encoder_mode_set(struct drm_encoder *encoder,
/* probably need to get DATA_EN polarity from panel.. */
dtv_hsync_skew = 0; /* get this from panel? */
- format = 0x213f; /* get this from panel? */
+
+ /* Get color format from panel, default is 8bpc */
+ list_for_each_entry(connector, &dev->mode_config.connector_list, head) {
+ if (connector->encoder == encoder) {
+ switch (connector->display_info.bpc) {
+ case 4:
+ format |= 0;
+ break;
+ case 5:
+ format |= 0x15;
+ break;
+ case 6:
+ format |= 0x2A;
+ break;
+ case 8:
+ default:
+ format |= 0x3F;
+ break;
+ }
+ break;
+ }
+ }
hsync_start_x = (mode->htotal - mode->hsync_start);
hsync_end_x = mode->htotal - (mode->hsync_start - mode->hdisplay) - 1;
@@ -198,6 +222,16 @@ static void mdp5_encoder_mode_set(struct drm_encoder *encoder,
display_v_start = (mode->vtotal - mode->vsync_start) * mode->htotal + dtv_hsync_skew;
display_v_end = vsync_period - ((mode->vsync_start - mode->vdisplay) * mode->htotal) + dtv_hsync_skew - 1;
+ /*
+ * For edp only:
+ * DISPLAY_V_START = (VBP * HCYCLE) + HBP
+ * DISPLAY_V_END = (VBP + VACTIVE) * HCYCLE - 1 - HFP
+ */
+ if (mdp5_encoder->intf_id == INTF_eDP) {
+ display_v_start += mode->htotal - mode->hsync_start;
+ display_v_end -= mode->hsync_start - mode->hdisplay;
+ }
+
spin_lock_irqsave(&mdp5_encoder->intf_lock, flags);
mdp5_write(mdp5_kms, REG_MDP5_INTF_HSYNC_CTL(intf),
diff --git a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
index d6f7e42..5b50f06 100644
--- a/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
+++ b/drivers/gpu/drm/msm/mdp/mdp5/mdp5_kms.c
@@ -210,14 +210,6 @@ static int modeset_init(struct mdp5_kms *mdp5_kms)
}
}
- /* Construct encoder for HDMI: */
- encoder = mdp5_encoder_init(dev, 3, INTF_HDMI);
- if (IS_ERR(encoder)) {
- dev_err(dev->dev, "failed to construct encoder\n");
- ret = PTR_ERR(encoder);
- goto fail;
- }
-
/* NOTE: the vsync and error irq's are actually associated with
* the INTF/encoder.. the easiest way to deal with this (ie. what
* we do now) is assume a fixed relationship between crtc's and
@@ -226,13 +218,18 @@ static int modeset_init(struct mdp5_kms *mdp5_kms)
* care of error and vblank irq's that the crtc has registered,
* and also update user-requested vblank_mask.
*/
- encoder->possible_crtcs = BIT(0);
- mdp5_crtc_set_intf(priv->crtcs[0], 3, INTF_HDMI);
+ if (priv->hdmi) {
+ /* Construct encoder for HDMI: */
+ encoder = mdp5_encoder_init(dev, 3, INTF_HDMI);
+ if (IS_ERR(encoder)) {
+ dev_err(dev->dev, "failed to construct encoder\n");
+ ret = PTR_ERR(encoder);
+ goto fail;
+ }
- priv->encoders[priv->num_encoders++] = encoder;
+ encoder->possible_crtcs = (1 << priv->num_crtcs) - 1;
+ priv->encoders[priv->num_encoders++] = encoder;
- /* Construct bridge/connector for HDMI: */
- if (priv->hdmi) {
ret = hdmi_modeset_init(priv->hdmi, dev, encoder);
if (ret) {
dev_err(dev->dev, "failed to initialize HDMI: %d\n", ret);
@@ -240,6 +237,26 @@ static int modeset_init(struct mdp5_kms *mdp5_kms)
}
}
+ if (priv->edp) {
+ /* Construct encoder for eDP: */
+ encoder = mdp5_encoder_init(dev, 0, INTF_eDP);
+ if (IS_ERR(encoder)) {
+ dev_err(dev->dev, "failed to construct eDP encoder\n");
+ ret = PTR_ERR(encoder);
+ goto fail;
+ }
+
+ encoder->possible_crtcs = (1 << priv->num_crtcs) - 1;
+ priv->encoders[priv->num_encoders++] = encoder;
+
+ ret = msm_edp_modeset_init(priv->edp, dev, encoder);
+ if (ret) {
+ dev_err(dev->dev, "failed to initialize eDP: %d\n",
+ ret);
+ goto fail;
+ }
+ }
+
return 0;
fail:
diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index d2e0a73..6f8aaea 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -1023,6 +1023,7 @@ static struct platform_driver msm_platform_driver = {
static int __init msm_drm_register(void)
{
DBG("init");
+ msm_edp_register();
hdmi_register();
adreno_register();
return platform_driver_register(&msm_platform_driver);
@@ -1034,6 +1035,7 @@ static void __exit msm_drm_unregister(void)
platform_driver_unregister(&msm_platform_driver);
hdmi_unregister();
adreno_unregister();
+ msm_edp_unregister();
}
module_init(msm_drm_register);
diff --git a/drivers/gpu/drm/msm/msm_drv.h b/drivers/gpu/drm/msm/msm_drv.h
index 3b25dd8..c83abf3 100644
--- a/drivers/gpu/drm/msm/msm_drv.h
+++ b/drivers/gpu/drm/msm/msm_drv.h
@@ -224,6 +224,12 @@ int hdmi_modeset_init(struct hdmi *hdmi, struct drm_device *dev,
void __init hdmi_register(void);
void __exit hdmi_unregister(void);
+struct msm_edp;
+void __init msm_edp_register(void);
+void __exit msm_edp_unregister(void);
+int msm_edp_modeset_init(struct msm_edp *edp, struct drm_device *dev,
+ struct drm_encoder *encoder);
+
#ifdef CONFIG_DEBUG_FS
void msm_gem_describe(struct drm_gem_object *obj, struct seq_file *m);
void msm_gem_describe_objects(struct list_head *list, struct seq_file *m);
--
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