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From: matthias.bgg@kernel.org
To: robh+dt@kernel.org, mark.rutland@arm.com, ck.hu@mediatek.com,
	p.zabel@pengutronix.de, airlied@linux.ie,
	mturquette@baylibre.com, sboyd@kernel.org,
	ulrich.hecht+renesas@gmail.com,
	laurent.pinchart@ideasonboard.com, enric.balletbo@collabora.com
Cc: devicetree@vger.kernel.org, drinkcat@chromium.org,
	Weiyi Lu <weiyi.lu@mediatek.com>,
	frank-w@public-files.de, sean.wang@mediatek.com,
	linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org,
	wens@csie.org, Matthias Brugger <mbrugger@suse.com>,
	linux-mediatek@lists.infradead.org, rdunlap@infradead.org,
	matthias.bgg@kernel.org,
	Matthias Brugger <matthias.bgg@gmail.com>,
	mtk01761 <wendell.lin@mediatek.com>,
	hsinyi@chromium.org, linux-clk@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-media@vger.kernel.org
Subject: [PATCH v7 09/13] clk: mediatek: mt6779: switch mmsys to platform device probing
Date: Thu, 13 Feb 2020 21:19:49 +0100
Message-ID: <20200213201953.15268-10-matthias.bgg@kernel.org> (raw)
In-Reply-To: <20200213201953.15268-1-matthias.bgg@kernel.org>

From: Matthias Brugger <mbrugger@suse.com>

Switch probing for the MMSYS to support invocation to a
plain paltform device. The driver will be probed by the DRM subsystem.

Signed-off-by: Matthias Brugger <mbrugger@suse.com>

---

Changes in v7:
- free clk_data->clks as well
- get rid of private data structure

Changes in v6: None
Changes in v5: None
Changes in v4: None
Changes in v3: None
Changes in v2: None

 drivers/clk/mediatek/clk-mt6779-mm.c | 32 ++++++++++++++++++----------
 1 file changed, 21 insertions(+), 11 deletions(-)

diff --git a/drivers/clk/mediatek/clk-mt6779-mm.c b/drivers/clk/mediatek/clk-mt6779-mm.c
index fb5fbb8e3e41..70a1f3b413ba 100644
--- a/drivers/clk/mediatek/clk-mt6779-mm.c
+++ b/drivers/clk/mediatek/clk-mt6779-mm.c
@@ -4,9 +4,11 @@
  * Author: Wendell Lin <wendell.lin@mediatek.com>
  */
 
+#include <linux/module.h>
 #include <linux/clk-provider.h>
 #include <linux/platform_device.h>
 #include <dt-bindings/clock/mt6779-clk.h>
+#include <linux/slab.h>
 
 #include "clk-mtk.h"
 #include "clk-gate.h"
@@ -84,30 +86,38 @@ static const struct mtk_gate mm_clks[] = {
 	GATE_MM1(CLK_MM_DISP_OVL_FBDC, "mm_disp_ovl_fbdc", "mm_sel", 16),
 };
 
-static const struct of_device_id of_match_clk_mt6779_mm[] = {
-	{ .compatible = "mediatek,mt6779-mmsys", },
-	{}
-};
-
 static int clk_mt6779_mm_probe(struct platform_device *pdev)
 {
 	struct clk_onecell_data *clk_data;
-	struct device_node *node = pdev->dev.of_node;
+	struct device_node *node = pdev->dev.parent->of_node;
+
+	clk_data = devm_kzalloc(&pdev->dev, sizeof(*clk_data), GFP_KERNEL);
+	if (!clk_data)
+		return -ENOMEM;
 
 	clk_data = mtk_alloc_clk_data(CLK_MM_NR_CLK);
+	platform_set_drvdata(pdev, clk_data);
 
-	mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks),
-			       clk_data);
+	mtk_clk_register_gates(node, mm_clks, ARRAY_SIZE(mm_clks), clk_data);
 
 	return of_clk_add_provider(node, of_clk_src_onecell_get, clk_data);
 }
 
+static int clk_mt6779_mm_remove(struct platform_device *pdev)
+{
+	struct clk_onecell_data *clk_data = platform_get_drvdata(pdev);
+
+	kfree(clk_data->clks);
+	kfree(clk_data);
+
+	return 0;
+}
+
 static struct platform_driver clk_mt6779_mm_drv = {
 	.probe = clk_mt6779_mm_probe,
+	.remove = clk_mt6779_mm_remove,
 	.driver = {
 		.name = "clk-mt6779-mm",
-		.of_match_table = of_match_clk_mt6779_mm,
 	},
 };
-
-builtin_platform_driver(clk_mt6779_mm_drv);
+module_platform_driver(clk_mt6779_mm_drv);
-- 
2.24.1


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  parent reply index

Thread overview: 22+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-02-13 20:19 [PATCH v7 00/13] arm/arm64: mediatek: Fix mmsys " matthias.bgg
2020-02-13 20:19 ` [PATCH v7 01/13] dt-bindings: arm: move mmsys description to display matthias.bgg
2020-02-14  6:42   ` CK Hu
2020-02-14 10:01     ` Matthias Brugger
2020-02-14 12:19       ` Enric Balletbo i Serra
2020-02-14 16:22         ` CK Hu
2020-02-13 20:19 ` [PATCH v7 02/13] dt-bindings: display: mediatek: Add mmsys binding description matthias.bgg
2020-02-18 20:31   ` Rob Herring
2020-02-13 20:19 ` [PATCH v7 03/13] dt-bindings: mediatek: Add compatible for mt7623 matthias.bgg
2020-02-13 20:19 ` [PATCH v7 04/13] drm/mediatek: Use regmap for register access matthias.bgg
2020-02-13 20:19 ` [PATCH v7 05/13] drm: mediatek: Omit warning on probe defers matthias.bgg
2020-02-13 20:19 ` [PATCH v7 06/13] media: mtk-mdp: Check return value of of_clk_get matthias.bgg
2020-02-24 17:36   ` Hans Verkuil
2020-02-24 21:47     ` Matthias Brugger
2020-02-13 20:19 ` [PATCH v7 07/13] clk: mediatek: mt2701: switch mmsys to platform device probing matthias.bgg
2020-02-13 20:19 ` [PATCH v7 08/13] clk: mediatek: mt2712e: switch " matthias.bgg
2020-02-13 20:19 ` matthias.bgg [this message]
2020-02-13 20:19 ` [PATCH v7 10/13] clk: mediatek: mt6797: " matthias.bgg
2020-02-13 20:19 ` [PATCH v7 11/13] clk: mediatek: mt8183: switch mmsys " matthias.bgg
2020-02-14  1:52   ` CK Hu
2020-02-13 20:19 ` [PATCH v7 12/13] clk: mediatek: mt8173: " matthias.bgg
2020-02-13 20:19 ` [PATCH v7 13/13] drm/mediatek: Add support for mmsys through a pdev matthias.bgg

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