Commit f8fd4b55 authored by AngeloGioacchino Del Regno's avatar AngeloGioacchino Del Regno Committed by Chen-Yu Tsai
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clk: mediatek: clk-mt8195-topckgen: Add GPU clock mux notifier 



Following the changes done to MT8183, register a similar notifier
for MT8195 as well, allowing safe clockrate updates for the MFGPLL.

Signed-off-by: default avatarAngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Reviewed-by: default avatarMiles Chen <miles.chen@mediatek.com>
Link: https://lore.kernel.org/r/20220927101128.44758-8-angelogioacchino.delregno@collabora.com


Signed-off-by: default avatarChen-Yu Tsai <wenst@chromium.org>
parent deeb2af7

drivers/clk/mediatek/clk-mt8195-topckgen.c

+20 −0
Original line number Diff line number Diff line
@@ -1217,6 +1217,21 @@ static const struct of_device_id of_match_clk_mt8195_topck[] = { 
	{}

};



/* Register mux notifier for MFG mux */

static int clk_mt8195_reg_mfg_mux_notifier(struct device *dev, struct clk *clk)

{

	struct mtk_mux_nb *mfg_mux_nb;



	mfg_mux_nb = devm_kzalloc(dev, sizeof(*mfg_mux_nb), GFP_KERNEL);

	if (!mfg_mux_nb)

		return -ENOMEM;



	mfg_mux_nb->ops = &clk_mux_ops;

	mfg_mux_nb->bypass_index = 0; /* Bypass to TOP_MFG_CORE_TMP */



	return devm_mtk_clk_mux_notifier_register(dev, clk, mfg_mux_nb);

}



static int clk_mt8195_topck_probe(struct platform_device *pdev)

{

	struct clk_hw_onecell_data *top_clk_data;
@@ -1256,6 +1271,11 @@ static int clk_mt8195_topck_probe(struct platform_device *pdev) 
		goto unregister_muxes;

	top_clk_data->hws[CLK_TOP_MFG_CK_FAST_REF] = hw;



	r = clk_mt8195_reg_mfg_mux_notifier(&pdev->dev,

					    top_clk_data->hws[CLK_TOP_MFG_CK_FAST_REF]->clk);

	if (r)

		goto unregister_muxes;



	r = mtk_clk_register_composites(top_adj_divs, ARRAY_SIZE(top_adj_divs), base,

					&mt8195_clk_lock, top_clk_data);

	if (r)