linux-kernel - [PATCH v3 25/26] drm: kirin: Pass driver data to crtc init and plane init

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Message-Id: <20190801034439.98227-26-john.stultz@linaro.org>
Date:   Thu,  1 Aug 2019 03:44:38 +0000
From:   John Stultz <john.stultz@...aro.org>
To:     lkml <linux-kernel@...r.kernel.org>
Cc:     Xu YiPing <xuyiping@...ilicon.com>,
        Rongrong Zou <zourongrong@...il.com>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        dri-devel <dri-devel@...ts.freedesktop.org>,
        Sam Ravnborg <sam@...nborg.org>,
        John Stultz <john.stultz@...aro.org>
Subject: [PATCH v3 25/26] drm: kirin: Pass driver data to crtc init and plane init

From: Xu YiPing <xuyiping@...ilicon.com>

As part of refactoring the kirin driver to better support
different hardware revisions, this patch changes the code
via a passed in driver_data pointer, rather than hardcoding
them via ade_driver_data variable.

This will allow those funcitons to be later moved to the
generic kirin_drm_drv.c using alternative driver_data structures
that support other hardware.

Cc: Rongrong Zou <zourongrong@...il.com>
Cc: David Airlie <airlied@...ux.ie>
Cc: Daniel Vetter <daniel@...ll.ch>
Cc: dri-devel <dri-devel@...ts.freedesktop.org>
Cc: Sam Ravnborg <sam@...nborg.org>
Reviewed-by: Sam Ravnborg <sam@...nborg.org>
Signed-off-by: Xu YiPing <xuyiping@...ilicon.com>
[jstultz: Reworded commit message]
Signed-off-by: John Stultz <john.stultz@...aro.org>
---
v2: Whitespace fixups, commit message tweaks suggested by Sam.
---
 .../gpu/drm/hisilicon/kirin/kirin_drm_ade.c   | 25 +++++++++++--------
 1 file changed, 14 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
index f729a1de6e14..ab0c5d03903d 100644
--- a/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
+++ b/drivers/gpu/drm/hisilicon/kirin/kirin_drm_ade.c
@@ -572,7 +572,8 @@ static const struct drm_crtc_funcs ade_crtc_funcs = {
 };
 
 static int kirin_drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
-			 struct drm_plane *plane)
+			       struct drm_plane *plane,
+			       const struct kirin_drm_data *driver_data)
 {
 	struct device_node *port;
 	int ret;
@@ -589,13 +590,13 @@ static int kirin_drm_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 	crtc->port = port;
 
 	ret = drm_crtc_init_with_planes(dev, crtc, plane, NULL,
-					ade_driver_data.crtc_funcs, NULL);
+					driver_data->crtc_funcs, NULL);
 	if (ret) {
 		DRM_ERROR("failed to init crtc.\n");
 		return ret;
 	}
 
-	drm_crtc_helper_add(crtc, ade_driver_data.crtc_helper_funcs);
+	drm_crtc_helper_add(crtc, driver_data->crtc_helper_funcs);
 
 	return 0;
 }
@@ -894,21 +895,22 @@ static struct drm_plane_funcs ade_plane_funcs = {
 
 static int kirin_drm_plane_init(struct drm_device *dev,
 				struct kirin_plane *kplane,
-				enum drm_plane_type type)
+				enum drm_plane_type type,
+				const struct kirin_drm_data *driver_data)
 {
 	int ret = 0;
 
 	ret = drm_universal_plane_init(dev, &kplane->base, 1,
-					ade_driver_data.plane_funcs,
-					ade_driver_data.channel_formats,
-					ade_driver_data.channel_formats_cnt,
-					NULL, type, NULL);
+				       driver_data->plane_funcs,
+				       driver_data->channel_formats,
+				       driver_data->channel_formats_cnt,
+				       NULL, type, NULL);
 	if (ret) {
 		DRM_ERROR("fail to init plane, ch=%d\n", kplane->ch);
 		return ret;
 	}
 
-	drm_plane_helper_add(&kplane->base, ade_driver_data.plane_helper_funcs);
+	drm_plane_helper_add(&kplane->base, driver_data->plane_helper_funcs);
 
 	return 0;
 }
@@ -1024,14 +1026,15 @@ static int ade_drm_init(struct platform_device *pdev)
 		else
 			type = DRM_PLANE_TYPE_OVERLAY;
 
-		ret = kirin_drm_plane_init(dev, kplane, type);
+		ret = kirin_drm_plane_init(dev, kplane, type, &ade_driver_data);
 		if (ret)
 			return ret;
 	}
 
 	/* crtc init */
 	ret = kirin_drm_crtc_init(dev, &kcrtc->base,
-				&ade->planes[ade_driver_data.prim_plane].base);
+				&ade->planes[ade_driver_data.prim_plane].base,
+				&ade_driver_data);
 	if (ret)
 		return ret;
 
-- 
2.17.1