reset/amlogic/reset-meson-audio-arb.c

13 #include <dt-bindings/reset/amlogic,meson-axg-audio-arb.h>
64 	struct meson_audio_arb_data *arb =
67 	spin_lock(&arb->lock);
68 	val = readl(arb->regs);
71 		val &= ~BIT(arb->reset_bits[id]);
73 		val |= BIT(arb->reset_bits[id]);
75 	writel(val, arb->regs);
76 	spin_unlock(&arb->lock);
85 	struct meson_audio_arb_data *arb =
88 	val = readl(arb->regs);
90 	return !(val & BIT(arb->reset_bits[id]));
113 		.compatible = "amlogic,meson-axg-audio-arb",
116 		.compatible = "amlogic,meson-sm1-audio-arb",
125 	struct meson_audio_arb_data *arb = platform_get_drvdata(pdev);
128 	spin_lock(&arb->lock);
129 	writel(0, arb->regs);
130 	spin_unlock(&arb->lock);
137 	struct meson_audio_arb_data *arb;
144 	arb = devm_kzalloc(dev, sizeof(*arb), GFP_KERNEL);
145 	if (!arb)
147 	platform_set_drvdata(pdev, arb);
149 	arb->clk = devm_clk_get_enabled(dev, NULL);
150 	if (IS_ERR(arb->clk))
151 		return dev_err_probe(dev, PTR_ERR(arb->clk), "failed to get clock\n");
153 	arb->regs = devm_platform_ioremap_resource(pdev, 0);
154 	if (IS_ERR(arb->regs))
155 		return PTR_ERR(arb->regs);
157 	spin_lock_init(&arb->lock);
158 	arb->reset_bits = data->reset_bits;
159 	arb->rstc.nr_resets = data->reset_num;
160 	arb->rstc.ops = &meson_audio_arb_rstc_ops;
161 	arb->rstc.of_node = dev->of_node;
162 	arb->rstc.owner = THIS_MODULE;
169 	writel(BIT(ARB_GENERAL_BIT), arb->regs);
172 	ret = devm_reset_controller_register(dev, &arb->rstc);
174 		dev_err(dev, "failed to register arb reset controller\n");
185 		.name = "meson-audio-arb-reset",