Lines Matching refs:data
45 static u64 rtc_read_lpsrt(struct snvs_rtc_data *data) in rtc_read_lpsrt() argument
49 regmap_read(data->regmap, data->offset + SNVS_LPSRTCMR, &msb); in rtc_read_lpsrt()
50 regmap_read(data->regmap, data->offset + SNVS_LPSRTCLR, &lsb); in rtc_read_lpsrt()
57 static u32 rtc_read_lp_counter(struct snvs_rtc_data *data) in rtc_read_lp_counter() argument
66 read1 = rtc_read_lpsrt(data); in rtc_read_lp_counter()
69 read1 = rtc_read_lpsrt(data); in rtc_read_lp_counter()
72 dev_err(&data->rtc->dev, "Timeout trying to get valid LPSRT Counter read\n"); in rtc_read_lp_counter()
79 static int rtc_read_lp_counter_lsb(struct snvs_rtc_data *data, u32 *lsb) in rtc_read_lp_counter_lsb() argument
84 regmap_read(data->regmap, data->offset + SNVS_LPSRTCLR, &count1); in rtc_read_lp_counter_lsb()
87 regmap_read(data->regmap, data->offset + SNVS_LPSRTCLR, &count1); in rtc_read_lp_counter_lsb()
90 dev_err(&data->rtc->dev, "Timeout trying to get valid LPSRT Counter read\n"); in rtc_read_lp_counter_lsb()
98 static int rtc_write_sync_lp(struct snvs_rtc_data *data) in rtc_write_sync_lp() argument
105 ret = rtc_read_lp_counter_lsb(data, &count1); in rtc_write_sync_lp()
111 ret = rtc_read_lp_counter_lsb(data, &count2); in rtc_write_sync_lp()
117 dev_err(&data->rtc->dev, "Timeout waiting for LPSRT Counter to change\n"); in rtc_write_sync_lp()
123 static int snvs_rtc_enable(struct snvs_rtc_data *data, bool enable) in snvs_rtc_enable() argument
128 regmap_update_bits(data->regmap, data->offset + SNVS_LPCR, SNVS_LPCR_SRTC_ENV, in snvs_rtc_enable()
132 regmap_read(data->regmap, data->offset + SNVS_LPCR, &lpcr); in snvs_rtc_enable()
151 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_read_time() local
152 unsigned long time = rtc_read_lp_counter(data); in snvs_rtc_read_time()
161 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_set_time() local
166 ret = snvs_rtc_enable(data, false); in snvs_rtc_set_time()
171 regmap_write(data->regmap, data->offset + SNVS_LPSRTCLR, time << CNTR_TO_SECS_SH); in snvs_rtc_set_time()
172 regmap_write(data->regmap, data->offset + SNVS_LPSRTCMR, time >> (32 - CNTR_TO_SECS_SH)); in snvs_rtc_set_time()
175 ret = snvs_rtc_enable(data, true); in snvs_rtc_set_time()
182 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_read_alarm() local
185 regmap_read(data->regmap, data->offset + SNVS_LPTAR, &lptar); in snvs_rtc_read_alarm()
188 regmap_read(data->regmap, data->offset + SNVS_LPSR, &lpsr); in snvs_rtc_read_alarm()
196 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_alarm_irq_enable() local
198 regmap_update_bits(data->regmap, data->offset + SNVS_LPCR, in snvs_rtc_alarm_irq_enable()
202 return rtc_write_sync_lp(data); in snvs_rtc_alarm_irq_enable()
207 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_set_alarm() local
211 regmap_update_bits(data->regmap, data->offset + SNVS_LPCR, SNVS_LPCR_LPTA_EN, 0); in snvs_rtc_set_alarm()
212 ret = rtc_write_sync_lp(data); in snvs_rtc_set_alarm()
215 regmap_write(data->regmap, data->offset + SNVS_LPTAR, time); in snvs_rtc_set_alarm()
218 regmap_write(data->regmap, data->offset + SNVS_LPSR, SNVS_LPSR_LPTA); in snvs_rtc_set_alarm()
234 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_irq_handler() local
238 if (data->clk) in snvs_rtc_irq_handler()
239 clk_enable(data->clk); in snvs_rtc_irq_handler()
241 regmap_read(data->regmap, data->offset + SNVS_LPSR, &lpsr); in snvs_rtc_irq_handler()
249 rtc_update_irq(data->rtc, 1, events); in snvs_rtc_irq_handler()
253 regmap_write(data->regmap, data->offset + SNVS_LPSR, lpsr); in snvs_rtc_irq_handler()
255 if (data->clk) in snvs_rtc_irq_handler()
256 clk_disable(data->clk); in snvs_rtc_irq_handler()
269 struct snvs_rtc_data *data; in snvs_rtc_probe() local
273 data = devm_kzalloc(&pdev->dev, sizeof(*data), GFP_KERNEL); in snvs_rtc_probe()
274 if (!data) in snvs_rtc_probe()
277 data->rtc = devm_rtc_allocate_device(&pdev->dev); in snvs_rtc_probe()
278 if (IS_ERR(data->rtc)) in snvs_rtc_probe()
279 return PTR_ERR(data->rtc); in snvs_rtc_probe()
281 data->regmap = syscon_regmap_lookup_by_phandle(pdev->dev.of_node, "regmap"); in snvs_rtc_probe()
283 if (IS_ERR(data->regmap)) { in snvs_rtc_probe()
290 data->regmap = devm_regmap_init_mmio(&pdev->dev, mmio, &snvs_rtc_config); in snvs_rtc_probe()
292 data->offset = SNVS_LPREGISTER_OFFSET; in snvs_rtc_probe()
293 of_property_read_u32(pdev->dev.of_node, "offset", &data->offset); in snvs_rtc_probe()
296 if (IS_ERR(data->regmap)) { in snvs_rtc_probe()
301 data->irq = platform_get_irq(pdev, 0); in snvs_rtc_probe()
302 if (data->irq < 0) in snvs_rtc_probe()
303 return data->irq; in snvs_rtc_probe()
305 data->clk = devm_clk_get(&pdev->dev, "snvs-rtc"); in snvs_rtc_probe()
306 if (IS_ERR(data->clk)) { in snvs_rtc_probe()
307 data->clk = NULL; in snvs_rtc_probe()
309 ret = clk_prepare_enable(data->clk); in snvs_rtc_probe()
317 platform_set_drvdata(pdev, data); in snvs_rtc_probe()
320 regmap_write(data->regmap, data->offset + SNVS_LPPGDR, SNVS_LPPGDR_INIT); in snvs_rtc_probe()
323 regmap_write(data->regmap, data->offset + SNVS_LPSR, 0xffffffff); in snvs_rtc_probe()
326 ret = snvs_rtc_enable(data, true); in snvs_rtc_probe()
333 ret = dev_pm_set_wake_irq(&pdev->dev, data->irq); in snvs_rtc_probe()
337 ret = devm_request_irq(&pdev->dev, data->irq, snvs_rtc_irq_handler, in snvs_rtc_probe()
341 data->irq, ret); in snvs_rtc_probe()
345 data->rtc->ops = &snvs_rtc_ops; in snvs_rtc_probe()
346 data->rtc->range_max = U32_MAX; in snvs_rtc_probe()
347 ret = rtc_register_device(data->rtc); in snvs_rtc_probe()
356 if (data->clk) in snvs_rtc_probe()
357 clk_disable_unprepare(data->clk); in snvs_rtc_probe()
364 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_suspend_noirq() local
366 if (data->clk) in snvs_rtc_suspend_noirq()
367 clk_disable_unprepare(data->clk); in snvs_rtc_suspend_noirq()
374 struct snvs_rtc_data *data = dev_get_drvdata(dev); in snvs_rtc_resume_noirq() local
376 if (data->clk) in snvs_rtc_resume_noirq()
377 return clk_prepare_enable(data->clk); in snvs_rtc_resume_noirq()