[PATCH 10/18] drm/i915/dsi: Drop bogus MIPI_SEQ_ASSERT_RESET before POWER_ON
Hans de Goede
hdegoede at redhat.com
Thu Dec 1 20:29:17 UTC 2016
MIPI_SEQ_ASSERT_RESET before POWER_ON is not necessary for 2 reasons:
1) The reset should already be asserted before intel_dsi_pre_enable()
gets called
2) Most (some?) VBTs will ensure reset was asserted in their
MIPI_SEQ_DEASSERT_RESET themselves
Signed-off-by: Hans de Goede <hdegoede at redhat.com>
---
drivers/gpu/drm/i915/intel_dsi.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/gpu/drm/i915/intel_dsi.c b/drivers/gpu/drm/i915/intel_dsi.c
index cf761e8..1f16211 100644
--- a/drivers/gpu/drm/i915/intel_dsi.c
+++ b/drivers/gpu/drm/i915/intel_dsi.c
@@ -656,7 +656,6 @@ static void intel_dsi_pre_enable(struct intel_encoder *encoder,
/* put device in ready state */
intel_dsi_device_ready(encoder);
- intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_ASSERT_RESET);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_POWER_ON);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_DEASSERT_RESET);
intel_dsi_exec_vbt_sequence(intel_dsi, MIPI_SEQ_INIT_OTP);
--
2.9.3
More information about the dri-devel
mailing list