clk/samsung/clk-exynos-clkout.c

115 	struct exynos_clkout *clkout;
119 	clkout = devm_kzalloc(&pdev->dev,
120 			      struct_size(clkout, data.hws, EXYNOS_CLKOUT_NR_CLKS),
122 	if (!clkout)
129 	clkout->np = pdev->dev.of_node;
130 	if (!clkout->np) {
135 		clkout->np = pdev->dev.parent->of_node;
138 	platform_set_drvdata(pdev, clkout);
140 	spin_lock_init(&clkout->slock);
146 		snprintf(name, sizeof(name), "clkout%d", i);
147 		parents[i] = of_clk_get_by_name(clkout->np, name);
160 	clkout->reg = of_iomap(clkout->np, 0);
161 	if (!clkout->reg) {
166 	clkout->gate.reg = clkout->reg + EXYNOS_PMU_DEBUG_REG;
167 	clkout->gate.bit_idx = EXYNOS_CLKOUT_DISABLE_SHIFT;
168 	clkout->gate.flags = CLK_GATE_SET_TO_DISABLE;
169 	clkout->gate.lock = &clkout->slock;
171 	clkout->mux.reg = clkout->reg + EXYNOS_PMU_DEBUG_REG;
172 	clkout->mux.mask = mux_mask;
173 	clkout->mux.shift = EXYNOS_CLKOUT_MUX_SHIFT;
174 	clkout->mux.lock = &clkout->slock;
176 	clkout->data.hws[0] = clk_hw_register_composite(NULL, "clkout",
177 				parent_names, parent_count, &clkout->mux.hw,
178 				&clk_mux_ops, NULL, NULL, &clkout->gate.hw,
181 	if (IS_ERR(clkout->data.hws[0])) {
182 		ret = PTR_ERR(clkout->data.hws[0]);
186 	clkout->data.num = EXYNOS_CLKOUT_NR_CLKS;
187 	ret = of_clk_add_hw_provider(clkout->np, of_clk_hw_onecell_get, &clkout->data);
194 	clk_hw_unregister(clkout->data.hws[0]);
196 	iounmap(clkout->reg);
202 	dev_err(&pdev->dev, "failed to register clkout clock\n");
209 	struct exynos_clkout *clkout = platform_get_drvdata(pdev);
211 	of_clk_del_provider(clkout->np);
212 	clk_hw_unregister(clkout->data.hws[0]);
213 	iounmap(clkout->reg);
218 	struct exynos_clkout *clkout = dev_get_drvdata(dev);
220 	clkout->pmu_debug_save = readl(clkout->reg + EXYNOS_PMU_DEBUG_REG);
227 	struct exynos_clkout *clkout = dev_get_drvdata(dev);
229 	writel(clkout->pmu_debug_save, clkout->reg + EXYNOS_PMU_DEBUG_REG);
239 		.name = "exynos-clkout",