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drm/i915: Add more dev ops for MIPI sub encoder

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Some panels require one time programming if they do not contain their
own eeprom for basic register initialization. The sequence is

Panel Reset --> Send OTP --> Enable Pixel Stream --> Enable the panel

v2: Based on review comments from Jani and Ville
    - Updated the commit message with more details
    - Move the new parameters out of this patch

Signed-off-by: Yogesh Mohan Marimuthu <yogesh.mohan.marimuthu@intel.com>
Signed-off-by: Shobhit Kumar <shobhit.kumar@intel.com>
Reviewed-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Shobhit Kumar
2013-12-10 12:14:54 +05:30
committed by Daniel Vetter
parent 9c333719ae
commit b9f5e07d02
2 changed files with 13 additions and 1 deletions
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9
drivers/gpu/drm/i915/intel_dsi.c
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@@ -147,6 +147,9 @@ static void intel_dsi_enable(struct intel_encoder *encoder)
DRM_DEBUG_KMS("\n");
if (intel_dsi->dev.dev_ops->panel_reset)
intel_dsi->dev.dev_ops->panel_reset(&intel_dsi->dev);
temp = I915_READ(MIPI_DEVICE_READY(pipe));
if ((temp & DEVICE_READY) == 0) {
temp &= ~ULPS_STATE_MASK;
@@ -162,6 +165,9 @@ static void intel_dsi_enable(struct intel_encoder *encoder)
I915_WRITE(MIPI_DEVICE_READY(pipe), temp);
}
if (intel_dsi->dev.dev_ops->send_otp_cmds)
intel_dsi->dev.dev_ops->send_otp_cmds(&intel_dsi->dev);
if (is_cmd_mode(intel_dsi))
I915_WRITE(MIPI_MAX_RETURN_PKT_SIZE(pipe), 8 * 4);
@@ -176,7 +182,8 @@ static void intel_dsi_enable(struct intel_encoder *encoder)
POSTING_READ(MIPI_PORT_CTRL(pipe));
}
intel_dsi->dev.dev_ops->enable(&intel_dsi->dev);
if (intel_dsi->dev.dev_ops->enable)
intel_dsi->dev.dev_ops->enable(&intel_dsi->dev);
}
static void intel_dsi_disable(struct intel_encoder *encoder)