Lines Matching full:data
52 static u64 rtc_read_lpsrt(struct snvs_rtc_data *data) in rtc_read_lpsrt() argument
56 regmap_read(data->regmap, data->offset + SNVS_LPSRTCMR, &msb); in rtc_read_lpsrt()
57 regmap_read(data->regmap, data->offset + SNVS_LPSRTCLR, &lsb); in rtc_read_lpsrt()
64 static u32 rtc_read_lp_counter(struct snvs_rtc_data *data) in rtc_read_lp_counter() argument
74 read1 = rtc_read_lpsrt(data); in rtc_read_lp_counter()
77 read1 = rtc_read_lpsrt(data); in rtc_read_lp_counter()
81 dev_err(&data->rtc->dev, "Timeout trying to get valid LPSRT Counter read\n"); in rtc_read_lp_counter()
88 static int rtc_read_lp_counter_lsb(struct snvs_rtc_data *data, u32 *lsb) in rtc_read_lp_counter_lsb() argument
94 regmap_read(data->regmap, data->offset + SNVS_LPSRTCLR, &count1); in rtc_read_lp_counter_lsb()
97 regmap_read(data->regmap, data->offset + SNVS_LPSRTCLR, &count1); in rtc_read_lp_counter_lsb()
101 dev_err(&data->rtc->dev, "Timeout trying to get valid LPSRT Counter read\n"); in rtc_read_lp_counter_lsb()
109 static int rtc_write_sync_lp(struct snvs_rtc_data *data) in rtc_write_sync_lp() argument
116 ret = rtc_read_lp_counter_lsb(data, &count1); in rtc_write_sync_lp()
122 ret = rtc_read_lp_counter_lsb(data, &count2); in rtc_write_sync_lp()
128 dev_err(&data->rtc->dev, "Timeout waiting for LPSRT Counter to change\n"); in rtc_write_sync_lp()
134 static int snvs_rtc_enable(struct snvs_rtc_data *data, bool enable) in snvs_rtc_enable() argument
139 regmap_update_bits(data->regmap, data->offset + SNVS_LPCR, SNVS_LPCR_SRTC_ENV, in snvs_rtc_enable()
143 regmap_read(data->regmap, data->offset + SNVS_LPCR, &lpcr); in snvs_rtc_enable()
162 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_read_time() local
166 if (data->clk) { in snvs_rtc_read_time()
167 ret = clk_enable(data->clk); in snvs_rtc_read_time()
172 time = rtc_read_lp_counter(data); in snvs_rtc_read_time()
175 if (data->clk) in snvs_rtc_read_time()
176 clk_disable(data->clk); in snvs_rtc_read_time()
183 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_set_time() local
187 if (data->clk) { in snvs_rtc_set_time()
188 ret = clk_enable(data->clk); in snvs_rtc_set_time()
194 ret = snvs_rtc_enable(data, false); in snvs_rtc_set_time()
199 regmap_write(data->regmap, data->offset + SNVS_LPSRTCLR, time << CNTR_TO_SECS_SH); in snvs_rtc_set_time()
200 regmap_write(data->regmap, data->offset + SNVS_LPSRTCMR, time >> (32 - CNTR_TO_SECS_SH)); in snvs_rtc_set_time()
203 ret = snvs_rtc_enable(data, true); in snvs_rtc_set_time()
205 if (data->clk) in snvs_rtc_set_time()
206 clk_disable(data->clk); in snvs_rtc_set_time()
213 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_read_alarm() local
217 if (data->clk) { in snvs_rtc_read_alarm()
218 ret = clk_enable(data->clk); in snvs_rtc_read_alarm()
223 regmap_read(data->regmap, data->offset + SNVS_LPTAR, &lptar); in snvs_rtc_read_alarm()
226 regmap_read(data->regmap, data->offset + SNVS_LPSR, &lpsr); in snvs_rtc_read_alarm()
229 if (data->clk) in snvs_rtc_read_alarm()
230 clk_disable(data->clk); in snvs_rtc_read_alarm()
237 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_alarm_irq_enable() local
240 if (data->clk) { in snvs_rtc_alarm_irq_enable()
241 ret = clk_enable(data->clk); in snvs_rtc_alarm_irq_enable()
246 regmap_update_bits(data->regmap, data->offset + SNVS_LPCR, in snvs_rtc_alarm_irq_enable()
250 ret = rtc_write_sync_lp(data); in snvs_rtc_alarm_irq_enable()
252 if (data->clk) in snvs_rtc_alarm_irq_enable()
253 clk_disable(data->clk); in snvs_rtc_alarm_irq_enable()
260 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_set_alarm() local
264 if (data->clk) { in snvs_rtc_set_alarm()
265 ret = clk_enable(data->clk); in snvs_rtc_set_alarm()
270 regmap_update_bits(data->regmap, data->offset + SNVS_LPCR, SNVS_LPCR_LPTA_EN, 0); in snvs_rtc_set_alarm()
271 ret = rtc_write_sync_lp(data); in snvs_rtc_set_alarm()
274 regmap_write(data->regmap, data->offset + SNVS_LPTAR, time); in snvs_rtc_set_alarm()
277 regmap_write(data->regmap, data->offset + SNVS_LPSR, SNVS_LPSR_LPTA); in snvs_rtc_set_alarm()
279 if (data->clk) in snvs_rtc_set_alarm()
280 clk_disable(data->clk); in snvs_rtc_set_alarm()
296 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_irq_handler() local
300 if (data->clk) in snvs_rtc_irq_handler()
301 clk_enable(data->clk); in snvs_rtc_irq_handler()
303 regmap_read(data->regmap, data->offset + SNVS_LPSR, &lpsr); in snvs_rtc_irq_handler()
311 rtc_update_irq(data->rtc, 1, events); in snvs_rtc_irq_handler()
315 regmap_write(data->regmap, data->offset + SNVS_LPSR, lpsr); in snvs_rtc_irq_handler()
317 if (data->clk) in snvs_rtc_irq_handler()
318 clk_disable(data->clk); in snvs_rtc_irq_handler()
329 static void snvs_rtc_action(void *data) in snvs_rtc_action() argument
331 if (data) in snvs_rtc_action()
332 clk_disable_unprepare(data); in snvs_rtc_action()
337 struct snvs_rtc_data *data; in snvs_rtc_probe() local
341 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); in snvs_rtc_probe()
342 if (!data) in snvs_rtc_probe()
345 data->rtc = devm_rtc_allocate_device(&pdev->dev); in snvs_rtc_probe()
346 if (IS_ERR(data->rtc)) in snvs_rtc_probe()
347 return PTR_ERR(data->rtc); in snvs_rtc_probe()
349 data->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "regmap"); in snvs_rtc_probe()
351 if (IS_ERR(data->regmap)) { in snvs_rtc_probe()
358 data->regmap = devm_regmap_init_mmio(&pdev->dev, mmio, &snvs_rtc_config); in snvs_rtc_probe()
360 data->offset = SNVS_LPREGISTER_OFFSET; in snvs_rtc_probe()
361 of_property_read_u32(pdev->dev.of_node, "offset", &data->offset); in snvs_rtc_probe()
364 if (IS_ERR(data->regmap)) { in snvs_rtc_probe()
369 data->irq = platform_get_irq(pdev, 0); in snvs_rtc_probe()
370 if (data->irq < 0) in snvs_rtc_probe()
371 return data->irq; in snvs_rtc_probe()
373 data->clk = devm_clk_get(&pdev->dev, "snvs-rtc"); in snvs_rtc_probe()
374 if (IS_ERR(data->clk)) { in snvs_rtc_probe()
375 data->clk = NULL; in snvs_rtc_probe()
377 ret = clk_prepare_enable(data->clk); in snvs_rtc_probe()
385 ret = devm_add_action_or_reset(&pdev->dev, snvs_rtc_action, data->clk); in snvs_rtc_probe()
389 platform_set_drvdata(pdev, data); in snvs_rtc_probe()
392 regmap_write(data->regmap, data->offset + SNVS_LPPGDR, SNVS_LPPGDR_INIT); in snvs_rtc_probe()
395 regmap_write(data->regmap, data->offset + SNVS_LPSR, 0xffffffff); in snvs_rtc_probe()
398 ret = snvs_rtc_enable(data, true); in snvs_rtc_probe()
405 ret = dev_pm_set_wake_irq(&pdev->dev, data->irq); in snvs_rtc_probe()
409 ret = devm_request_irq(&pdev->dev, data->irq, snvs_rtc_irq_handler, in snvs_rtc_probe()
413 data->irq, ret); in snvs_rtc_probe()
417 data->rtc->ops = &snvs_rtc_ops; in snvs_rtc_probe()
418 data->rtc->range_max = U32_MAX; in snvs_rtc_probe()
420 return rtc_register_device(data->rtc); in snvs_rtc_probe()
425 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_suspend_noirq() local
427 if (data->clk) in snvs_rtc_suspend_noirq()
428 clk_disable(data->clk); in snvs_rtc_suspend_noirq()
435 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_resume_noirq() local
437 if (data->clk) in snvs_rtc_resume_noirq()
438 return clk_enable(data->clk); in snvs_rtc_resume_noirq()