This patch adds a mmio base address variable for DSI display,
to make the DSI code generic, so that, if required, the same code
can be re-used for future platforms with different mmio base.
Signed-off-by: Shashank Sharma <shashank.sharma@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_drv.h | 3 +++
drivers/gpu/drm/i915/i915_reg.h | 1 +
drivers/gpu/drm/i915/intel_dsi.c | 8 ++++++++
3 files changed, 12 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 3fc2e3d..25cdcf1 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -1290,6 +1290,9 @@ struct drm_i915_private {
*/
uint32_t gpio_mmio_base;
+ /* MMIO base address for MIPI regs */
+ uint32_t mipi_mmio_base;
+
wait_queue_head_t gmbus_wait_queue;
struct pci_dev *bridge_dev;
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 0eff337..c12a858 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -948,6 +948,7 @@ enum punit_power_well {
#define GFX_PPGTT_ENABLE (1<<9)
#define VLV_DISPLAY_BASE 0x180000
+#define VLV_MIPI_BASE VLV_DISPLAY_BASE
#define SCPD0 0x0209c /* 915+ only */
#define IER 0x020a0
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 4e271c7..a454a0b 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -639,6 +639,7 @@ bool intel_dsi_init(struct drm_device *dev)
struct intel_connector *intel_connector;
struct drm_connector *connector;
struct drm_display_mode *fixed_mode = NULL;
+ struct drm_i915_private *dev_priv = dev->dev_private;
const struct intel_dsi_device *dsi;
unsigned int i;
@@ -658,6 +659,13 @@ bool intel_dsi_init(struct drm_device *dev)
encoder = &intel_encoder->base;
intel_dsi->attached_connector = intel_connector;
+ if (IS_VALLEYVIEW(dev))
+ dev_priv->mipi_mmio_base = VLV_MIPI_BASE;
+ else {
+ DRM_ERROR("Unsupported Mipi device to reg base");
+ return false;
+ }
+
connector = &intel_connector->base;
drm_encoder_init(dev, encoder, &intel_dsi_funcs, DRM_MODE_ENCODER_DSI);
--
1.7.10.4
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