On 01/16/2015 05:57 PM, Jani Nikula wrote:
Instead of having the for each dsi port loop within dpi_send_cmd(), add
a port parameter to the function and call it for each port instead.
This is a rewrite of
commit 4510cd779e5897eeb8691aecbd639bb62ec27d55
Author: Gaurav K Singh <gaurav.k.si...@intel.com>
Date: Thu Dec 4 10:58:51 2014 +0530
drm/i915: Dual link needs Shutdown and Turn on packet for both ports
to add more flexibility in using dpi_send_cmd() for just one port as
necessary. No functional changes.
Signed-off-by: Jani Nikula <jani.nik...@intel.com>
Better this way.
Reviewed-By: Shobhit Kumar <shobhit.ku...@intel.com>
---
drivers/gpu/drm/i915/intel_dsi.c | 7 +++++--
drivers/gpu/drm/i915/intel_dsi_cmd.c | 26 ++++++++++----------------
drivers/gpu/drm/i915/intel_dsi_cmd.h | 2 +-
3 files changed, 16 insertions(+), 19 deletions(-)
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index 42b6d6f5cecc..36b19c7e87b9 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -207,7 +207,8 @@ static void intel_dsi_enable(struct intel_encoder *encoder)
I915_WRITE(MIPI_MAX_RETURN_PKT_SIZE(port), 8 * 4);
else {
msleep(20); /* XXX */
- dpi_send_cmd(intel_dsi, TURN_ON, DPI_LP_MODE_EN);
+ for_each_dsi_port(port, intel_dsi->ports)
+ dpi_send_cmd(intel_dsi, TURN_ON, DPI_LP_MODE_EN, port);
msleep(100);
if (intel_dsi->dev.dev_ops->enable)
@@ -275,12 +276,14 @@ static void intel_dsi_enable_nop(struct intel_encoder
*encoder)
static void intel_dsi_pre_disable(struct intel_encoder *encoder)
{
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
+ enum port port;
DRM_DEBUG_KMS("\n");
if (is_vid_mode(intel_dsi)) {
/* Send Shutdown command to the panel in LP mode */
- dpi_send_cmd(intel_dsi, SHUTDOWN, DPI_LP_MODE_EN);
+ for_each_dsi_port(port, intel_dsi->ports)
+ dpi_send_cmd(intel_dsi, SHUTDOWN, DPI_LP_MODE_EN, port);
msleep(10);
}
}
diff --git a/drivers/gpu/drm/i915/intel_dsi_cmd.c
b/drivers/gpu/drm/i915/intel_dsi_cmd.c
index 562811c1a9d2..5f63c807acea 100644
--- a/drivers/gpu/drm/i915/intel_dsi_cmd.c
+++ b/drivers/gpu/drm/i915/intel_dsi_cmd.c
@@ -380,12 +380,11 @@ int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int
channel,
*
* XXX: commands with data in MIPI_DPI_DATA?
*/
-int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs)
+int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs, enum port port)
{
struct drm_encoder *encoder = &intel_dsi->base.base;
struct drm_device *dev = encoder->dev;
struct drm_i915_private *dev_priv = dev->dev_private;
- enum port port;
u32 mask;
/* XXX: pipe, hs */
@@ -394,23 +393,18 @@ int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd,
bool hs)
else
cmd |= DPI_LP_MODE;
- for_each_dsi_port(port, intel_dsi->ports) {
- /* clear bit */
- I915_WRITE(MIPI_INTR_STAT(port), SPL_PKT_SENT_INTERRUPT);
+ /* clear bit */
+ I915_WRITE(MIPI_INTR_STAT(port), SPL_PKT_SENT_INTERRUPT);
- /* XXX: old code skips write if control unchanged */
- if (cmd == I915_READ(MIPI_DPI_CONTROL(port)))
- DRM_ERROR("Same special packet %02x twice in a row.\n",
- cmd);
+ /* XXX: old code skips write if control unchanged */
+ if (cmd == I915_READ(MIPI_DPI_CONTROL(port)))
+ DRM_ERROR("Same special packet %02x twice in a row.\n", cmd);
- I915_WRITE(MIPI_DPI_CONTROL(port), cmd);
+ I915_WRITE(MIPI_DPI_CONTROL(port), cmd);
- mask = SPL_PKT_SENT_INTERRUPT;
- if (wait_for((I915_READ(MIPI_INTR_STAT(port)) & mask) == mask,
- 100))
- DRM_ERROR("Video mode command 0x%08x send failed.\n",
- cmd);
- }
+ mask = SPL_PKT_SENT_INTERRUPT;
+ if (wait_for((I915_READ(MIPI_INTR_STAT(port)) & mask) == mask, 100))
+ DRM_ERROR("Video mode command 0x%08x send failed.\n", cmd);
return 0;
}
diff --git a/drivers/gpu/drm/i915/intel_dsi_cmd.h
b/drivers/gpu/drm/i915/intel_dsi_cmd.h
index 326a5ac55561..1d1a716e473a 100644
--- a/drivers/gpu/drm/i915/intel_dsi_cmd.h
+++ b/drivers/gpu/drm/i915/intel_dsi_cmd.h
@@ -51,7 +51,7 @@ int dsi_vc_dcs_read(struct intel_dsi *intel_dsi, int channel,
u8 dcs_cmd,
int dsi_vc_generic_read(struct intel_dsi *intel_dsi, int channel,
u8 *reqdata, int reqlen, u8 *buf, int buflen, enum port port);
-int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs);
+int dpi_send_cmd(struct intel_dsi *intel_dsi, u32 cmd, bool hs, enum port
port);
void wait_for_dsi_fifo_empty(struct intel_dsi *intel_dsi);
/* XXX: questionable write helpers */
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