linux-kernel - [PATCH 1/2] component: Add helper for device nodes

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Message-Id: <20221103182222.2247724-2-sean.anderson@seco.com>
Date:   Thu,  3 Nov 2022 14:22:21 -0400
From:   Sean Anderson <sean.anderson@...o.com>
To:     David Airlie <airlied@...il.com>, Daniel Vetter <daniel@...ll.ch>,
        Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
        Maxime Ripard <mripard@...nel.org>,
        Thomas Zimmermann <tzimmermann@...e.de>,
        dri-devel@...ts.freedesktop.org
Cc:     linux-kernel@...r.kernel.org,
        Sean Anderson <sean.anderson@...o.com>,
        Jaroslav Kysela <perex@...ex.cz>,
        Joerg Roedel <joro@...tes.org>,
        Liam Girdwood <lgirdwood@...il.com>,
        Mark Brown <broonie@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        Robin Murphy <robin.murphy@....com>,
        Takashi Iwai <tiwai@...e.com>, Will Deacon <will@...nel.org>,
        Yong Wu <yong.wu@...iatek.com>, alsa-devel@...a-project.org,
        iommu@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org,
        linux-mediatek@...ts.infradead.org
Subject: [PATCH 1/2] component: Add helper for device nodes

There is a common case where component_patch_add_release is called with
component_release_of/component_compare_of and a device node. Add a
helper and convert existing users.

Signed-off-by: Sean Anderson <sean.anderson@...o.com>
---

 drivers/iommu/mtk_iommu.c    | 3 +--
 drivers/iommu/mtk_iommu_v1.c | 3 +--
 include/linux/component.h    | 9 +++++++++
 sound/soc/codecs/wcd938x.c   | 6 ++----
 4 files changed, 13 insertions(+), 8 deletions(-)

diff --git a/drivers/iommu/mtk_iommu.c b/drivers/iommu/mtk_iommu.c
index 2ab2ecfe01f8..483b7a9e4410 100644
--- a/drivers/iommu/mtk_iommu.c
+++ b/drivers/iommu/mtk_iommu.c
@@ -1079,8 +1079,7 @@ static int mtk_iommu_mm_dts_parse(struct device *dev, struct component_match **m
 		}
 		data->larb_imu[id].dev = &plarbdev->dev;
 
-		component_match_add_release(dev, match, component_release_of,
-					    component_compare_of, larbnode);
+		component_match_add_of(dev, match, larbnode);
 	}
 
 	/* Get smi-(sub)-common dev from the last larb. */
diff --git a/drivers/iommu/mtk_iommu_v1.c b/drivers/iommu/mtk_iommu_v1.c
index 6e0e65831eb7..fb09ed6bf550 100644
--- a/drivers/iommu/mtk_iommu_v1.c
+++ b/drivers/iommu/mtk_iommu_v1.c
@@ -672,8 +672,7 @@ static int mtk_iommu_v1_probe(struct platform_device *pdev)
 		}
 		data->larb_imu[i].dev = &plarbdev->dev;
 
-		component_match_add_release(dev, &match, component_release_of,
-					    component_compare_of, larbnode);
+		component_match_add_of(dev, &match, larbnode);
 	}
 
 	platform_set_drvdata(pdev, data);
diff --git a/include/linux/component.h b/include/linux/component.h
index df4aa75c9e7c..fb5d2dbc34d8 100644
--- a/include/linux/component.h
+++ b/include/linux/component.h
@@ -6,6 +6,7 @@
 
 
 struct device;
+struct device_node;
 
 /**
  * struct component_ops - callbacks for component drivers
@@ -128,4 +129,12 @@ static inline void component_match_add(struct device *parent,
 				    compare_data);
 }
 
+static inline void component_match_add_of(struct device *parent,
+					  struct component_match **matchptr,
+					  struct device_node *node)
+{
+	component_match_add_release(parent, matchptr, component_release_of,
+				    component_compare_of, node);
+}
+
 #endif
diff --git a/sound/soc/codecs/wcd938x.c b/sound/soc/codecs/wcd938x.c
index aca06a4026f3..2f8444e54083 100644
--- a/sound/soc/codecs/wcd938x.c
+++ b/sound/soc/codecs/wcd938x.c
@@ -4474,8 +4474,7 @@ static int wcd938x_add_slave_components(struct wcd938x_priv *wcd938x,
 	}
 
 	of_node_get(wcd938x->rxnode);
-	component_match_add_release(dev, matchptr, component_release_of,
-				    component_compare_of, wcd938x->rxnode);
+	component_match_add_of(dev, matchptr, wcd938x->rxnode);
 
 	wcd938x->txnode = of_parse_phandle(np, "qcom,tx-device", 0);
 	if (!wcd938x->txnode) {
@@ -4483,8 +4482,7 @@ static int wcd938x_add_slave_components(struct wcd938x_priv *wcd938x,
 		return -ENODEV;
 	}
 	of_node_get(wcd938x->txnode);
-	component_match_add_release(dev, matchptr, component_release_of,
-				    component_compare_of, wcd938x->txnode);
+	component_match_add_of(dev, matchptr, wcd938x->txnode);
 	return 0;
 }
 
-- 
2.35.1.1320.gc452695387.dirty