[PATCH v7 6/7] soc: mediatek: mmsys: instantiate mdp virtual device from mmsys
From: Eizan Miyamoto <hidden>
Date: 2021-08-25 06:34:43
Also in:
linux-arm-kernel, lkml
Subsystem:
arm/mediatek soc support, the rest · Maintainers:
Matthias Brugger, AngeloGioacchino Del Regno, Linus Torvalds
A virtual device that is probed by the mtk_mdp_core driver is instantiated by the mtk_mmsys driver. This better reflects the logical organization of the hardware and driver: there are a number of hardware blocks that are used by the MDP that have no strict hierarchy, and the software driver is responsible for driving them properly. Signed-off-by: Eizan Miyamoto <redacted> Reviewed-by: Enric Balletbo i Serra <redacted> Reviewed-by: Houlong Wei <houlong.wei@mediatek.com> --- (no changes since v1) drivers/soc/mediatek/mtk-mmsys.c | 20 +++++++++++++++++++- 1 file changed, 19 insertions(+), 1 deletion(-)
diff --git a/drivers/soc/mediatek/mtk-mmsys.c b/drivers/soc/mediatek/mtk-mmsys.c
index 080660ef11bf..e681029fe804 100644
--- a/drivers/soc/mediatek/mtk-mmsys.c
+++ b/drivers/soc/mediatek/mtk-mmsys.c@@ -97,6 +97,7 @@ static int mtk_mmsys_probe(struct platform_device *pdev) struct platform_device *clks; struct platform_device *drm; struct mtk_mmsys *mmsys; + struct platform_device *mdp; int ret; mmsys = devm_kzalloc(dev, sizeof(*mmsys), GFP_KERNEL);
@@ -122,10 +123,27 @@ static int mtk_mmsys_probe(struct platform_device *pdev) PLATFORM_DEVID_AUTO, NULL, 0); if (IS_ERR(drm)) { platform_device_unregister(clks); - return PTR_ERR(drm); + ret = PTR_ERR(drm); + goto err_drm; + } + + mdp = platform_device_register_data(&pdev->dev, "mtk-mdp", + PLATFORM_DEVID_AUTO, NULL, 0); + if (IS_ERR(mdp)) { + ret = PTR_ERR(mdp); + dev_err(dev, "Failed to register mdp: %d\n", ret); + goto err_mdp; } return 0; + +err_mdp: + platform_device_unregister(drm); + +err_drm: + platform_device_unregister(clks); + + return ret; } static const struct of_device_id of_match_mtk_mmsys[] = {
--
2.33.0.rc2.250.ged5fa647cd-goog
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