Warn for the wrong mask in enable only. Disable will have the wrong mask now
because the new state is committed before disabling the old state.
Changes since v1:
- Use crtc_mask (Durgadoss)
- Rebase.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457944075-14123-3-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
This makes it easier to verify correct dpll setup with only a single crtc.
It is also useful to detect double dpll enable/disable.
Changes since v1:
- Rebase on top of Ander's dpll rework.
- Change debugfs active to a mask.
- Change enabled_crtcs and active_crtcs to unsigned.
Signed-off-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457944075-14123-2-git-send-email-maarten.lankhorst@linux.intel.com
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
After the commit below the Broxton PLL IDs had an off-by-one error, so
fix this up. Also add a missing brace at intel_shared_dpll_init(), it
happened to compile only due to the way the IS_BROXTON macro is defined.
v2:
- remove debugging left-over
Fixes: a3c988ea06 ("drm/i915: Make SKL/KBL DPLL0 managed by the shared dpll code")
CC: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
CC: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Ander Conselvan de Oliveira <conselvan2@gmail.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457978134-12362-1-git-send-email-imre.deak@intel.com
Include DPLL0 in the managed dplls for SKL/KBL. While it has to be kept
enabled because of it driving CDCLK, it is better to special case that
inside the DPLL code than in the higher level.
v2: Use INTEL_DPLL_ALWAYS_ON flag. (Ander)
v3: Remove extremely paranoid WARN_ONs. (Maarten)
Handle DPLL0 in skylake_get_ddi_pll() properly. (Ander)
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457451987-17466-14-git-send-email-ander.conselvan.de.oliveira@intel.com
Manage the LCPLLs used with DisplayPort, so that all the HSW/BDW DPLLs
are managed by the shared dpll code.
v2: Introduce INTEL_DPLL_ALWAYS_ON flag to please state checker. (Ander)
v3: Initialize pll->flags in intel_shared_dpll_init(). (Ander)
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457451987-17466-13-git-send-email-ander.conselvan.de.oliveira@intel.com
Move the code for selecting and configuring HSW/BDW DDI PLLs into the
shared dpll infrastructure. With this most of the PLL selection logic
for those platforms is in one place. DisplayPort is handled separately,
but that should be fixed on a follow up patch. It also allows a small
clean up of the SPLL logic.
v2: Rebase.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457451987-17466-10-git-send-email-ander.conselvan.de.oliveira@intel.com
The function intel_get_shared_dpll() had a more or less generic
implementation with some platform specific checks to handle smaller
differences between platforms. However, the minimalist approach forces
bigger differences between platforms to be implemented outside of the
shared dpll code (see the *_ddi_pll_select() functions in intel_ddi.c,
for instance).
This patch changes the implementation of intel_get_share_dpll() so that
a completely platform specific version can be used, providing helpers to
reduce code duplication. This should allow the code from the ddi pll
select functions to be moved, and also make room for making more dplls
managed by the shared dpll infrastructure.
v2: WARN_ON(!dpll_mgr) in intel_get_shared_dpll(). (Maarten)
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457451987-17466-9-git-send-email-ander.conselvan.de.oliveira@intel.com
Change the type of intel_crtc_state->shared_dpll to be a pointer to a
shared dpll. With this there is no need to first convert the id stored
in the crtc state to a pointer in order to use it. It does introduce a
bit of hassle on doing the opposite.
The long term objective is to hide details about dpll ids behind the
shared dpll interface.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457451987-17466-5-git-send-email-ander.conselvan.de.oliveira@intel.com
Create the new file intel_dpll_mgr.c and move the shared dpll code to
it. Follow up patches that reorganize pll handling will move more code
there and tweak the interface.
No functional changes.
Signed-off-by: Ander Conselvan de Oliveira <ander.conselvan.de.oliveira@intel.com>
Reviewed-by: Maarten Lankhorst <maarten.lankhorst@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1457451987-17466-2-git-send-email-ander.conselvan.de.oliveira@intel.com
