mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-08-24 17:59:32 +00:00
drm/i915/icl: Program T_INIT_MASTER registers
This patch programs the time (in escape clocks) to drive the link in the initialization (i.e. LP-11) state. v2: Rebase v3: Remove step hard coding comments (Jani N) Signed-off-by: Madhav Chauhan <madhav.chauhan@intel.com> Reviewed-by: Jani Nikula <jani.nikula@intel.com> Signed-off-by: Jani Nikula <jani.nikula@intel.com> Link: https://patchwork.freedesktop.org/patch/msgid/1537095223-5184-5-git-send-email-madhav.chauhan@intel.com
This commit is contained in:
parent
ba3df888be
commit
70a7b83628
1 changed files with 19 additions and 0 deletions
|
@ -277,6 +277,22 @@ static void gen11_dsi_enable_ddi_buffer(struct intel_encoder *encoder)
|
|||
}
|
||||
}
|
||||
|
||||
static void gen11_dsi_setup_dphy_timings(struct intel_encoder *encoder)
|
||||
{
|
||||
struct drm_i915_private *dev_priv = to_i915(encoder->base.dev);
|
||||
struct intel_dsi *intel_dsi = enc_to_intel_dsi(&encoder->base);
|
||||
u32 tmp;
|
||||
enum port port;
|
||||
|
||||
/* Program T-INIT master registers */
|
||||
for_each_dsi_port(port, intel_dsi->ports) {
|
||||
tmp = I915_READ(ICL_DSI_T_INIT_MASTER(port));
|
||||
tmp &= ~MASTER_INIT_TIMER_MASK;
|
||||
tmp |= intel_dsi->init_count;
|
||||
I915_WRITE(ICL_DSI_T_INIT_MASTER(port), tmp);
|
||||
}
|
||||
}
|
||||
|
||||
static void gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder)
|
||||
{
|
||||
/* step 4a: power up all lanes of the DDI used by DSI */
|
||||
|
@ -290,6 +306,9 @@ static void gen11_dsi_enable_port_and_phy(struct intel_encoder *encoder)
|
|||
|
||||
/* enable DDI buffer */
|
||||
gen11_dsi_enable_ddi_buffer(encoder);
|
||||
|
||||
/* setup D-PHY timings */
|
||||
gen11_dsi_setup_dphy_timings(encoder);
|
||||
}
|
||||
|
||||
static void __attribute__((unused))
|
||||
|
|
Loading…
Reference in a new issue