From 1c55b1e063d0ecd466a6163c37af528bd0ab3f2b Mon Sep 17 00:00:00 2001 From: Dave Airlie Date: Wed, 29 Sep 2021 01:57:59 +0300 Subject: drm/i915: constify fdi link training vtable Put the vtable into ro memory. Reviewed-by: Jani Nikula Signed-off-by: Dave Airlie Signed-off-by: Jani Nikula Link: https://patchwork.freedesktop.org/patch/msgid/ec4687956f9b98024fea55b2f0ed1e192e244ff1.1632869550.git.jani.nikula@intel.com --- drivers/gpu/drm/i915/display/intel_fdi.c | 20 ++++++++++++++++---- drivers/gpu/drm/i915/i915_drv.h | 2 +- 2 files changed, 17 insertions(+), 5 deletions(-) diff --git a/drivers/gpu/drm/i915/display/intel_fdi.c b/drivers/gpu/drm/i915/display/intel_fdi.c index f828bebe8962..af01d1fa761e 100644 --- a/drivers/gpu/drm/i915/display/intel_fdi.c +++ b/drivers/gpu/drm/i915/display/intel_fdi.c @@ -15,7 +15,7 @@ void intel_fdi_link_train(struct intel_crtc *crtc, { struct drm_i915_private *dev_priv = to_i915(crtc->base.dev); - dev_priv->fdi_funcs.fdi_link_train(crtc, crtc_state); + dev_priv->fdi_funcs->fdi_link_train(crtc, crtc_state); } /* units of 100MHz */ @@ -1013,15 +1013,27 @@ void lpt_fdi_program_mphy(struct drm_i915_private *dev_priv) intel_sbi_write(dev_priv, 0x21EC, tmp, SBI_MPHY); } +static const struct intel_fdi_funcs ilk_funcs = { + .fdi_link_train = ilk_fdi_link_train, +}; + +static const struct intel_fdi_funcs gen6_funcs = { + .fdi_link_train = gen6_fdi_link_train, +}; + +static const struct intel_fdi_funcs ivb_funcs = { + .fdi_link_train = ivb_manual_fdi_link_train, +}; + void intel_fdi_init_hook(struct drm_i915_private *dev_priv) { if (IS_IRONLAKE(dev_priv)) { - dev_priv->fdi_funcs.fdi_link_train = ilk_fdi_link_train; + dev_priv->fdi_funcs = &ilk_funcs; } else if (IS_SANDYBRIDGE(dev_priv)) { - dev_priv->fdi_funcs.fdi_link_train = gen6_fdi_link_train; + dev_priv->fdi_funcs = &gen6_funcs; } else if (IS_IVYBRIDGE(dev_priv)) { /* FIXME: detect B0+ stepping and use auto training */ - dev_priv->fdi_funcs.fdi_link_train = ivb_manual_fdi_link_train; + dev_priv->fdi_funcs = &ivb_funcs; } } diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h index ed2d8b61fe4d..e01fe2199e23 100644 --- a/drivers/gpu/drm/i915/i915_drv.h +++ b/drivers/gpu/drm/i915/i915_drv.h @@ -991,7 +991,7 @@ struct drm_i915_private { struct intel_hotplug_funcs hotplug_funcs; /* fdi display functions */ - struct intel_fdi_funcs fdi_funcs; + const struct intel_fdi_funcs *fdi_funcs; /* display pll funcs */ struct intel_dpll_funcs dpll_funcs; -- cgit v1.2.3-59-g8ed1b