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path: root/drivers/gpu/drm/i915/intel_dsi.c
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Diffstat (limited to 'drivers/gpu/drm/i915/intel_dsi.c')
-rw-r--r--drivers/gpu/drm/i915/intel_dsi.c46
1 files changed, 25 insertions, 21 deletions
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 5b72c50d6f76..16732e7bc08e 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -340,7 +340,7 @@ static bool intel_dsi_compute_config(struct intel_encoder *encoder,
/* DSI uses short packets for sync events, so clear mode flags for DSI */
adjusted_mode->flags = 0;
- if (IS_BROXTON(dev_priv)) {
+ if (IS_GEN9_LP(dev_priv)) {
/* Dual link goes to DSI transcoder A. */
if (intel_dsi->ports == BIT(PORT_C))
pipe_config->cpu_transcoder = TRANSCODER_DSI_C;
@@ -379,7 +379,8 @@ static void bxt_dsi_device_ready(struct intel_encoder *encoder)
val &= ~ULPS_STATE_MASK;
val |= (ULPS_STATE_ENTER | DEVICE_READY);
I915_WRITE(MIPI_DEVICE_READY(port), val);
- usleep_range(2, 3);
+ /* at least 2us - relaxed for hrtimer subsystem optimization */
+ usleep_range(10, 50);
/* 3. Exit ULPS */
val = I915_READ(MIPI_DEVICE_READY(port));
@@ -441,7 +442,7 @@ static void intel_dsi_device_ready(struct intel_encoder *encoder)
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv))
vlv_dsi_device_ready(encoder);
- else if (IS_BROXTON(dev_priv))
+ else if (IS_GEN9_LP(dev_priv))
bxt_dsi_device_ready(encoder);
}
@@ -464,7 +465,7 @@ static void intel_dsi_port_enable(struct intel_encoder *encoder)
}
for_each_dsi_port(port, intel_dsi->ports) {
- i915_reg_t port_ctrl = IS_BROXTON(dev_priv) ?
+ i915_reg_t port_ctrl = IS_GEN9_LP(dev_priv) ?
BXT_MIPI_PORT_CTRL(port) : MIPI_PORT_CTRL(port);
u32 temp;
@@ -476,7 +477,10 @@ static void intel_dsi_port_enable(struct intel_encoder *encoder)
if (intel_dsi->ports == (BIT(PORT_A) | BIT(PORT_C))) {
temp |= (intel_dsi->dual_link - 1)
<< DUAL_LINK_MODE_SHIFT;
- temp |= intel_crtc->pipe ?
+ if (IS_BROXTON(dev_priv))
+ temp |= LANE_CONFIGURATION_DUAL_LINK_A;
+ else
+ temp |= intel_crtc->pipe ?
LANE_CONFIGURATION_DUAL_LINK_B :
LANE_CONFIGURATION_DUAL_LINK_A;
}
@@ -494,7 +498,7 @@ static void intel_dsi_port_disable(struct intel_encoder *encoder)
enum port port;
for_each_dsi_port(port, intel_dsi->ports) {
- i915_reg_t port_ctrl = IS_BROXTON(dev_priv) ?
+ i915_reg_t port_ctrl = IS_GEN9_LP(dev_priv) ?
BXT_MIPI_PORT_CTRL(port) : MIPI_PORT_CTRL(port);
u32 temp;
@@ -663,7 +667,7 @@ static void intel_dsi_clear_device_ready(struct intel_encoder *encoder)
DRM_DEBUG_KMS("\n");
for_each_dsi_port(port, intel_dsi->ports) {
/* Common bit for both MIPI Port A & MIPI Port C on VLV/CHV */
- i915_reg_t port_ctrl = IS_BROXTON(dev_priv) ?
+ i915_reg_t port_ctrl = IS_GEN9_LP(dev_priv) ?
BXT_MIPI_PORT_CTRL(port) : MIPI_PORT_CTRL(PORT_A);
u32 val;
@@ -695,8 +699,6 @@ static void intel_dsi_clear_device_ready(struct intel_encoder *encoder)
I915_WRITE(MIPI_DEVICE_READY(port), 0x00);
usleep_range(2000, 2500);
}
-
- intel_disable_dsi_pll(encoder);
}
static void intel_dsi_post_disable(struct intel_encoder *encoder,
@@ -712,6 +714,8 @@ static void intel_dsi_post_disable(struct intel_encoder *encoder,
intel_dsi_clear_device_ready(encoder);
+ intel_disable_dsi_pll(encoder);
+
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
u32 val;
@@ -755,12 +759,12 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
* configuration, otherwise accessing DSI registers will hang the
* machine. See BSpec North Display Engine registers/MIPI[BXT].
*/
- if (IS_BROXTON(dev_priv) && !intel_dsi_pll_is_enabled(dev_priv))
+ if (IS_GEN9_LP(dev_priv) && !intel_dsi_pll_is_enabled(dev_priv))
goto out_put_power;
/* XXX: this only works for one DSI output */
for_each_dsi_port(port, intel_dsi->ports) {
- i915_reg_t ctrl_reg = IS_BROXTON(dev_priv) ?
+ i915_reg_t ctrl_reg = IS_GEN9_LP(dev_priv) ?
BXT_MIPI_PORT_CTRL(port) : MIPI_PORT_CTRL(port);
bool enabled = I915_READ(ctrl_reg) & DPI_ENABLE;
@@ -785,7 +789,7 @@ static bool intel_dsi_get_hw_state(struct intel_encoder *encoder,
if (!(I915_READ(MIPI_DEVICE_READY(port)) & DEVICE_READY))
continue;
- if (IS_BROXTON(dev_priv)) {
+ if (IS_GEN9_LP(dev_priv)) {
u32 tmp = I915_READ(MIPI_CTRL(port));
tmp &= BXT_PIPE_SELECT_MASK;
tmp >>= BXT_PIPE_SELECT_SHIFT;
@@ -973,7 +977,7 @@ static void intel_dsi_get_config(struct intel_encoder *encoder,
u32 pclk;
DRM_DEBUG_KMS("\n");
- if (IS_BROXTON(dev_priv))
+ if (IS_GEN9_LP(dev_priv))
bxt_dsi_get_pipe_config(encoder, pipe_config);
pclk = intel_dsi_get_pclk(encoder, pipe_config->pipe_bpp,
@@ -1065,7 +1069,7 @@ static void set_dsi_timings(struct drm_encoder *encoder,
hbp = txbyteclkhs(hbp, bpp, lane_count, intel_dsi->burst_mode_ratio);
for_each_dsi_port(port, intel_dsi->ports) {
- if (IS_BROXTON(dev_priv)) {
+ if (IS_GEN9_LP(dev_priv)) {
/*
* Program hdisplay and vdisplay on MIPI transcoder.
* This is different from calculated hactive and
@@ -1152,7 +1156,7 @@ static void intel_dsi_prepare(struct intel_encoder *intel_encoder,
tmp &= ~READ_REQUEST_PRIORITY_MASK;
I915_WRITE(MIPI_CTRL(port), tmp |
READ_REQUEST_PRIORITY_HIGH);
- } else if (IS_BROXTON(dev_priv)) {
+ } else if (IS_GEN9_LP(dev_priv)) {
enum pipe pipe = intel_crtc->pipe;
tmp = I915_READ(MIPI_CTRL(port));
@@ -1190,7 +1194,7 @@ static void intel_dsi_prepare(struct intel_encoder *intel_encoder,
if (intel_dsi->clock_stop)
tmp |= CLOCKSTOP;
- if (IS_BROXTON(dev_priv)) {
+ if (IS_GEN9_LP(dev_priv)) {
tmp |= BXT_DPHY_DEFEATURE_EN;
if (!is_cmd_mode(intel_dsi))
tmp |= BXT_DEFEATURE_DPI_FIFO_CTR;
@@ -1241,7 +1245,7 @@ static void intel_dsi_prepare(struct intel_encoder *intel_encoder,
I915_WRITE(MIPI_INIT_COUNT(port),
txclkesc(intel_dsi->escape_clk_div, 100));
- if (IS_BROXTON(dev_priv) && (!intel_dsi->dual_link)) {
+ if (IS_GEN9_LP(dev_priv) && (!intel_dsi->dual_link)) {
/*
* BXT spec says write MIPI_INIT_COUNT for
* both the ports, even if only one is
@@ -1424,15 +1428,15 @@ static void intel_dsi_add_properties(struct intel_connector *connector)
}
}
-void intel_dsi_init(struct drm_device *dev)
+void intel_dsi_init(struct drm_i915_private *dev_priv)
{
+ struct drm_device *dev = &dev_priv->drm;
struct intel_dsi *intel_dsi;
struct intel_encoder *intel_encoder;
struct drm_encoder *encoder;
struct intel_connector *intel_connector;
struct drm_connector *connector;
struct drm_display_mode *scan, *fixed_mode = NULL;
- struct drm_i915_private *dev_priv = to_i915(dev);
enum port port;
unsigned int i;
@@ -1444,7 +1448,7 @@ void intel_dsi_init(struct drm_device *dev)
if (IS_VALLEYVIEW(dev_priv) || IS_CHERRYVIEW(dev_priv)) {
dev_priv->mipi_mmio_base = VLV_MIPI_BASE;
- } else if (IS_BROXTON(dev_priv)) {
+ } else if (IS_GEN9_LP(dev_priv)) {
dev_priv->mipi_mmio_base = BXT_MIPI_BASE;
} else {
DRM_ERROR("Unsupported Mipi device to reg base");
@@ -1485,7 +1489,7 @@ void intel_dsi_init(struct drm_device *dev)
* On BYT/CHV, pipe A maps to MIPI DSI port A, pipe B maps to MIPI DSI
* port C. BXT isn't limited like this.
*/
- if (IS_BROXTON(dev_priv))
+ if (IS_GEN9_LP(dev_priv))
intel_encoder->crtc_mask = BIT(PIPE_A) | BIT(PIPE_B) | BIT(PIPE_C);
else if (port == PORT_A)
intel_encoder->crtc_mask = BIT(PIPE_A);
generated by cgit v1.2.3 (git 2.39.0) at 2024-12-04 13:21:30 +0300