From: Gustavo Sousa Date: Thu, 22 Sep 2022 16:49:49 +0000 (-0300) Subject: drm/i915: Move hotplug inversion logic into separate helper X-Git-Tag: v6.2-rc1~10^2~27^2~116 X-Git-Url: http://git.osdn.net/view?a=commitdiff_plain;h=71690148dbcf2331a54e40da26970402bd07a527;p=tomoyo%2Ftomoyo-test1.git drm/i915: Move hotplug inversion logic into separate helper Use *_hpd_invert() helpers whenever possible to isolate logic specific to hotplug inversion from common HPD setup logic to improve readability and maintainability of the source code. While we only define dg1_hpd_invert() here, future platforms are likely to have different hotplug inversion needs, thus it makes sense grouping different implementations under a common suffix. v2: Fix coding style and prefer to use small *_hdp_invert() helpers instead of a generic one. CC: Jani Nikula CC: Lucas De Marchi Signed-off-by: Gustavo Sousa Reviewed-by: Jani Nikula Signed-off-by: Lucas De Marchi Link: https://patchwork.freedesktop.org/patch/msgid/20220922164949.163985-1-gustavo.sousa@intel.com --- diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 8ffd81243a19..8c301b1682b4 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -3411,17 +3411,18 @@ static u32 gen11_hotplug_enables(struct drm_i915_private *i915, } } -static void dg1_hpd_irq_setup(struct drm_i915_private *dev_priv) +static void dg1_hpd_invert(struct drm_i915_private *i915) { - u32 val; - - val = intel_uncore_read(&dev_priv->uncore, SOUTH_CHICKEN1); - val |= (INVERT_DDIA_HPD | - INVERT_DDIB_HPD | - INVERT_DDIC_HPD | - INVERT_DDID_HPD); - intel_uncore_write(&dev_priv->uncore, SOUTH_CHICKEN1, val); + u32 val = (INVERT_DDIA_HPD | + INVERT_DDIB_HPD | + INVERT_DDIC_HPD | + INVERT_DDID_HPD); + intel_uncore_rmw(&i915->uncore, SOUTH_CHICKEN1, 0, val); +} +static void dg1_hpd_irq_setup(struct drm_i915_private *dev_priv) +{ + dg1_hpd_invert(dev_priv); icp_hpd_irq_setup(dev_priv); }