[PATCH 07/11] drm/msm: Make irq_postinstall optional

From: Jordan Crouse <jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>
To: freedreno-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org
Cc: linux-arm-msm-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
	dri-devel-PD4FTy7X32lNgt0PjOBp9y5qC8QIuHrW@public.gmane.org,
	bzwang-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
	seanpaul-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org,
	abhinavk-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org,
	sam-uyr5N9Q2VtJg9hUCZPvPmw@public.gmane.org
Subject: [PATCH 07/11] drm/msm: Make irq_postinstall optional
Date: Mon,  5 Nov 2018 16:30:59 -0700	[thread overview]
Message-ID: <20181105233103.7657-8-jcrouse@codeaurora.org> (raw)
In-Reply-To: <20181105233103.7657-1-jcrouse-sgV2jX0FEOL9JmXXK+q4OQ@public.gmane.org>

Allow the KMS operation 'irq_postinstall' to be optional
so that the target display drivers don't need to define
a dummy function if they don't need one.

Signed-off-by: Jordan Crouse <jcrouse@codeaurora.org>
---
 drivers/gpu/drm/msm/msm_drv.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/msm_drv.c b/drivers/gpu/drm/msm/msm_drv.c
index 9c9f7ff6960b..d8af97407b3c 100644
--- a/drivers/gpu/drm/msm/msm_drv.c
+++ b/drivers/gpu/drm/msm/msm_drv.c
@@ -724,7 +724,11 @@ static int msm_irq_postinstall(struct drm_device *dev)
 	struct msm_drm_private *priv = dev->dev_private;
 	struct msm_kms *kms = priv->kms;
 	BUG_ON(!kms);
-	return kms->funcs->irq_postinstall(kms);
+
+	if (kms->funcs->irq_postinstall)
+		return kms->funcs->irq_postinstall(kms);
+
+	return 0;
 }
 
 static void msm_irq_uninstall(struct drm_device *dev)
-- 
2.18.0

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