Lines Matching defs:data
75 struct pit_data *data = clksrc_to_pit_data(cs);
81 elapsed = data->cnt;
82 t = pit_read(data->base, AT91_PIT_PIIR);
85 elapsed += PIT_PICNT(t) * data->cycle;
92 struct pit_data *data = clkevt_to_pit_data(dev);
95 pit_write(data->base, AT91_PIT_MR, (data->cycle - 1) | AT91_PIT_PITEN);
104 struct pit_data *data = clkevt_to_pit_data(dev);
107 data->cnt += data->cycle * PIT_PICNT(pit_read(data->base, AT91_PIT_PIVR));
108 pit_write(data->base, AT91_PIT_MR,
109 (data->cycle - 1) | AT91_PIT_PITEN | AT91_PIT_PITIEN);
115 struct pit_data *data = clkevt_to_pit_data(cedev);
118 pit_write(data->base, AT91_PIT_MR, 0);
121 static void at91sam926x_pit_reset(struct pit_data *data)
124 pit_write(data->base, AT91_PIT_MR, 0);
127 while (PIT_CPIV(pit_read(data->base, AT91_PIT_PIVR)) != 0)
131 pit_write(data->base, AT91_PIT_MR,
132 (data->cycle - 1) | AT91_PIT_PITEN);
137 struct pit_data *data = clkevt_to_pit_data(cedev);
139 at91sam926x_pit_reset(data);
147 struct pit_data *data = dev_id;
150 if (clockevent_state_periodic(&data->clkevt) &&
151 (pit_read(data->base, AT91_PIT_SR) & AT91_PIT_PITS)) {
153 data->cnt += data->cycle * PIT_PICNT(pit_read(data->base,
155 data->clkevt.event_handler(&data->clkevt);
171 struct pit_data *data;
173 data = kzalloc(sizeof(*data), GFP_KERNEL);
174 if (!data)
177 data->base = of_iomap(node, 0);
178 if (!data->base) {
184 data->mck = of_clk_get(node, 0);
185 if (IS_ERR(data->mck)) {
187 ret = PTR_ERR(data->mck);
191 ret = clk_prepare_enable(data->mck);
198 data->irq = irq_of_parse_and_map(node, 0);
199 if (!data->irq) {
209 pit_rate = clk_get_rate(data->mck) / 16;
210 data->cycle = DIV_ROUND_CLOSEST(pit_rate, HZ);
211 WARN_ON(((data->cycle - 1) & ~AT91_PIT_PIV) != 0);
214 at91sam926x_pit_reset(data);
220 bits = 12 /* PICNT */ + ilog2(data->cycle) /* PIV */;
221 data->clksrc.mask = CLOCKSOURCE_MASK(bits);
222 data->clksrc.name = "pit";
223 data->clksrc.rating = 175;
224 data->clksrc.read = read_pit_clk;
225 data->clksrc.flags = CLOCK_SOURCE_IS_CONTINUOUS;
227 ret = clocksource_register_hz(&data->clksrc, pit_rate);
234 ret = request_irq(data->irq, at91sam926x_pit_interrupt,
236 "at91_tick", data);
239 clocksource_unregister(&data->clksrc);
244 data->clkevt.name = "pit";
245 data->clkevt.features = CLOCK_EVT_FEAT_PERIODIC;
246 data->clkevt.shift = 32;
247 data->clkevt.mult = div_sc(pit_rate, NSEC_PER_SEC, data->clkevt.shift);
248 data->clkevt.rating = 100;
249 data->clkevt.cpumask = cpumask_of(0);
251 data->clkevt.set_state_shutdown = pit_clkevt_shutdown;
252 data->clkevt.set_state_periodic = pit_clkevt_set_periodic;
253 data->clkevt.resume = at91sam926x_pit_resume;
254 data->clkevt.suspend = at91sam926x_pit_suspend;
255 clockevents_register_device(&data->clkevt);
260 kfree(data);