linux-kernel - [PATCH 2/2] drm/mediatek: Add Mediatek framebuffer device

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Message-ID: <20190116013924.11345-2-ck.hu@mediatek.com>
Date:   Wed, 16 Jan 2019 09:39:24 +0800
From:   CK Hu <ck.hu@...iatek.com>
To:     Philipp Zabel <p.zabel@...gutronix.de>,
        David Airlie <airlied@...ux.ie>,
        Daniel Vetter <daniel@...ll.ch>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Noralf Trønnes <noralf@...nnes.org>,
        Frank Wunderlich <frank-w@...lic-files.de>
CC:     <dri-devel@...ts.freedesktop.org>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>, <srv_heupstream@...iatek.com>,
        CK Hu <ck.hu@...iatek.com>
Subject: [PATCH 2/2] drm/mediatek: Add Mediatek framebuffer device

For Mediatek drm driver, use fbdev emulation to create a framebuffer
device.

Signed-off-by: CK Hu <ck.hu@...iatek.com>
---
 drivers/gpu/drm/mediatek/mtk_drm_drv.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/gpu/drm/mediatek/mtk_drm_drv.c b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
index 6ec4ca070382..5fcc0e294696 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_drv.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_drv.c
@@ -16,6 +16,7 @@
 #include <drm/drm_atomic.h>
 #include <drm/drm_atomic_helper.h>
 #include <drm/drm_crtc_helper.h>
+#include <drm/drm_fb_helper.h>
 #include <drm/drm_gem.h>
 #include <drm/drm_gem_cma_helper.h>
 #include <drm/drm_of.h>
@@ -378,6 +379,10 @@ static int mtk_drm_bind(struct device *dev)
 	if (ret < 0)
 		goto err_deinit;
 
+	ret = drm_fbdev_generic_setup(drm, 32);
+	if (ret)
+		DRM_ERROR("Failed to initialize fbdev: %d\n", ret);
+
 	return 0;
 
 err_deinit:
-- 
2.18.1