Unverified Commit e40fa328 authored by Xiangsheng Hou's avatar Xiangsheng Hou Committed by Mark Brown
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spi: mtk-snfi: Add optional nfi_hclk which is needed for MT7986 



Add optional nfi_hclk which is needed for MT7986.

Signed-off-by: default avatarXiangsheng Hou <xiangsheng.hou@mediatek.com>
Reviewed-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20230201020921.26712-3-xiangsheng.hou@mediatek.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 2b1e1981

drivers/spi/spi-mtk-snfi.c

+18 −0
Original line number Diff line number Diff line
@@ -297,6 +297,7 @@ struct mtk_snand { 
	struct device *dev;

	struct clk *nfi_clk;

	struct clk *pad_clk;

	struct clk *nfi_hclk;

	void __iomem *nfi_base;

	int irq;

	struct completion op_done;
@@ -1339,7 +1340,16 @@ static int mtk_snand_enable_clk(struct mtk_snand *ms) 
		dev_err(ms->dev, "unable to enable pad clk\n");

		goto err1;

	}

	ret = clk_prepare_enable(ms->nfi_hclk);

	if (ret) {

		dev_err(ms->dev, "unable to enable nfi hclk\n");

		goto err2;

	}



	return 0;



err2:

	clk_disable_unprepare(ms->pad_clk);

err1:

	clk_disable_unprepare(ms->nfi_clk);

	return ret;
@@ -1347,6 +1357,7 @@ static int mtk_snand_enable_clk(struct mtk_snand *ms) 


static void mtk_snand_disable_clk(struct mtk_snand *ms)

{

	clk_disable_unprepare(ms->nfi_hclk);

	clk_disable_unprepare(ms->pad_clk);

	clk_disable_unprepare(ms->nfi_clk);

}
@@ -1401,6 +1412,13 @@ static int mtk_snand_probe(struct platform_device *pdev) 
		goto release_ecc;

	}



	ms->nfi_hclk = devm_clk_get_optional(&pdev->dev, "nfi_hclk");

	if (IS_ERR(ms->nfi_hclk)) {

		ret = PTR_ERR(ms->nfi_hclk);

		dev_err(&pdev->dev, "unable to get nfi_hclk, err = %d\n", ret);

		goto release_ecc;

	}



	ret = mtk_snand_enable_clk(ms);

	if (ret)

		goto release_ecc;