diff options
| author | Vaibhav Hiremath <vaibhav.hiremath@linaro.org> | 2015-07-09 12:25:51 +0530 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@free-electrons.com> | 2015-09-05 13:19:05 +0200 |
| commit | 4ab82103131777b9aabb6ba31aead6e5b0293b32 (patch) | |
| tree | cc0a50c6e9191aafcbdacba50265bbb31eac206e /drivers/rtc/rtc-88pm80x.c | |
| parent | 617f6f7ef5bfe8c0ac580243c3da9a836c6e39bf (diff) | |
| download | linux-4ab82103131777b9aabb6ba31aead6e5b0293b32.tar.gz | |
rtc: 88pm80x: add device tree support
Along with DT support, this patch also cleans up the unnecessary
code around 'rtc_wakeup' initialization.
Signed-off-by: Chao Xie <chao.xie@marvell.com>
Signed-off-by: Vaibhav Hiremath <vaibhav.hiremath@linaro.org>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Diffstat (limited to 'drivers/rtc/rtc-88pm80x.c')
| -rw-r--r-- | drivers/rtc/rtc-88pm80x.c | 28 |
1 files changed, 17 insertions, 11 deletions
diff --git a/drivers/rtc/rtc-88pm80x.c b/drivers/rtc/rtc-88pm80x.c index 7df0579d9852c..466bf7f9a285a 100644 --- a/drivers/rtc/rtc-88pm80x.c +++ b/drivers/rtc/rtc-88pm80x.c @@ -251,17 +251,26 @@ static SIMPLE_DEV_PM_OPS(pm80x_rtc_pm_ops, pm80x_rtc_suspend, pm80x_rtc_resume); static int pm80x_rtc_probe(struct platform_device *pdev) { struct pm80x_chip *chip = dev_get_drvdata(pdev->dev.parent); - struct pm80x_platform_data *pm80x_pdata = - dev_get_platdata(pdev->dev.parent); - struct pm80x_rtc_pdata *pdata = NULL; + struct pm80x_rtc_pdata *pdata = dev_get_platdata(&pdev->dev); struct pm80x_rtc_info *info; + struct device_node *node = pdev->dev.of_node; struct rtc_time tm; unsigned long ticks = 0; int ret; - pdata = dev_get_platdata(&pdev->dev); - if (pdata == NULL) - dev_warn(&pdev->dev, "No platform data!\n"); + if (!pdata && !node) { + dev_err(&pdev->dev, + "pm80x-rtc requires platform data or of_node\n"); + return -EINVAL; + } + + if (!pdata) { + pdata = devm_kzalloc(&pdev->dev, sizeof(*pdata), GFP_KERNEL); + if (!pdata) { + dev_err(&pdev->dev, "failed to allocate memory\n"); + return -ENOMEM; + } + } info = devm_kzalloc(&pdev->dev, sizeof(struct pm80x_rtc_info), GFP_KERNEL); @@ -327,11 +336,8 @@ static int pm80x_rtc_probe(struct platform_device *pdev) regmap_update_bits(info->map, PM800_RTC_CONTROL, PM800_RTC1_USE_XO, PM800_RTC1_USE_XO); - if (pm80x_pdata) { - pdata = pm80x_pdata->rtc; - if (pdata) - info->rtc_dev->dev.platform_data = &pdata->rtc_wakeup; - } + /* remember whether this power up is caused by PMIC RTC or not */ + info->rtc_dev->dev.platform_data = &pdata->rtc_wakeup; device_init_wakeup(&pdev->dev, 1); |