- struct stm32_clock_event_ddata *data = &clock_event_ddata;
- struct clk *clk;
- struct reset_control *rstc;
- unsigned long rate, max_delta;
- int irq, ret, bits, prescaler = 1;
-
- data = kmemdup(&clock_event_ddata, sizeof(*data), GFP_KERNEL);
- if (!data)
- return -ENOMEM;
-
- clk = of_clk_get(np, 0);
- if (IS_ERR(clk)) {
- ret = PTR_ERR(clk);
- pr_err("failed to get clock for clockevent (%d)\n", ret);
- goto err_clk_get;
- }
-
- ret = clk_prepare_enable(clk);
- if (ret) {
- pr_err("failed to enable timer clock for clockevent (%d)\n",
- ret);
- goto err_clk_enable;
- }
-
- rate = clk_get_rate(clk);
-
- rstc = of_reset_control_get(np, NULL);
- if (!IS_ERR(rstc)) {
- reset_control_assert(rstc);
- reset_control_deassert(rstc);
- }
-
- data->base = of_iomap(np, 0);
- if (!data->base) {
- ret = -ENXIO;
- pr_err("failed to map registers for clockevent\n");
- goto err_iomap;
- }