kernel/drivers/rtc/rtc-stm32.c, branch linux-5.1.y

rtc: stm32: manage the get_irq probe defer case

2019-05-31T13:43:20Z

[ Upstream commit cf612c5949aca2bd81a1e28688957c8149ea2693 ] Manage the -EPROBE_DEFER error case for the wake IRQ. Signed-off-by: Fabien Dessenne Acked-by: Amelie Delaunay Signed-off-by: Alexandre Belloni Signed-off-by: Sasha Levin

rtc: stm32: add stm32mp1 rtc support

2018-05-22T18:10:54Z

This patch adds support for stm32mp1 RTC. Some common registers with previous RTC version have a different offset. It is the case for Control Register (CR) and ALaRMA Register (ALRMAR). There are also new registers regarding event flags: now, Alarm event flag is in Status Register (SR) and write 1 in Status Clear Register (SCR) is required to clear the event. Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Belloni

rtc: stm32: rework register management to prepare other version of RTC

2018-05-22T18:10:52Z

This patch reworks register/bits management because next version of RTC uses the same way of working but with different register's offset or bits moved in new registers. Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Belloni

rtc: stm32: fix misspelling and misalignment issues

2018-05-22T18:10:50Z

This patch cleans the following checkpatch complaints: CHECK: 'initalized' may be misspelled - perhaps 'initialized'? #644: FILE: drivers/rtc/rtc-stm32.c:644: + * the calendar has been initalized or not. INITS flag is reset by a CHECK: Alignment should match open parenthesis #669: FILE: drivers/rtc/rtc-stm32.c:669: + rtc->rtc_dev = devm_rtc_device_register(&pdev->dev, pdev->name, + &stm32_rtc_ops, THIS_MODULE); Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Belloni

rtc: stm32: get DBP register and mask from DT st, syscfg property

2018-05-06T20:22:43Z

RTC driver should not be aware of the PWR registers offset and bits position. Furthermore, we can imagine that DBP relative register and bit mask could change depending on the SoC. So this patch introduces 2 parameters, dbp_reg and dbp_mask, allowing to get PWR_CR and PWR_CR_DBP from device tree. And it prepares next RTC version, backup domain write protection is disabled only if needed. Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Belloni

rtc: stm32: fix alarm interrupt flags by removing IRQF_TRIGGER_RISING

2018-05-06T20:22:40Z

RTC alarm interrupt is active high and already configured by device tree. So remove IRQF_TRIGGER_RISING from driver. Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Belloni

rtc: stm32: fix copyright and adopt SPDX identifier

2018-05-06T20:22:39Z

Fix copyright by removing "SA" and "for STMicroelectronics", not required. Adopt SPDX identifier. Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Belloni

rtc: stm32: Fix copyright

2017-11-29T21:20:56Z

Uniformize STMicroelectronics copyrights header Signed-off-by: Benjamin Gaignard CC: Amelie Delaunay Acked-by: Alexandre TORGUE Signed-off-by: Alexandre Belloni

rtc: stm32: add STM32H7 RTC support

2017-07-06T20:52:54Z

This patch adds support for STM32H7 RTC. On STM32H7, the RTC bus interface clock (APB clock) needs to be enabled. Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Belloni

rtc: stm32: fix comparison warnings

2017-01-22T23:47:15Z

This patches fixes comparison between signed and unsigned values as it could produce an incorrect result when the signed value is converted to unsigned: drivers/rtc/rtc-stm32.c: In function 'stm32_rtc_valid_alrm': drivers/rtc/rtc-stm32.c:404:21: warning: comparison between signed and unsigned integer expressions [-Wsign-compare] if ((((tm->tm_year > cur_year) && ... It also fixes comparison always true or false due to the fact that unsigned value is compared against zero with >= or <: drivers/rtc/rtc-stm32.c: In function 'stm32_rtc_init': drivers/rtc/rtc-stm32.c:514:35: warning: comparison of unsigned expression >= 0 is always true [-Wtype-limits] for (pred_a = pred_a_max; pred_a >= 0; pred_a-- ) { drivers/rtc/rtc-stm32.c:530:44: warning: comparison of unsigned expression < 0 is always false [-Wtype-limits] (rate - ((pred_a + 1) * (pred_s + 1)) < 0) ? Fixes: 4e64350f42e2 ("rtc: add STM32 RTC driver") Signed-off-by: Amelie Delaunay Signed-off-by: Alexandre Belloni