rtc: twl: make driver DT only

Since there are no platform based users and all users
of this code are TI OMAP-based which is DT only, it makes
sense to remove unused code.

Signed-off-by: Nicolae Rosia <Nicolae_Rosia@mentor.com>
Tested-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>

diff --git a/drivers/rtc/Kconfig b/drivers/rtc/Kconfig
index ab55f35..a44f1f2 100644 (file)
--- a/drivers/rtc/Kconfig
+++ b/drivers/rtc/Kconfig
@@ -481,6 +481,7 @@ config RTC_DRV_TWL92330
 config RTC_DRV_TWL4030
        tristate "TI TWL4030/TWL5030/TWL6030/TPS659x0"
        depends on TWL4030_CORE
+       depends on OF
        help
          If you say yes here you get support for the RTC on the
          TWL4030/TWL5030/TWL6030 family chips, used mostly with OMAP3 platforms.

diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 1e41526..c18c392 100644 (file)
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -496,10 +496,16 @@ static const struct rtc_class_ops twl_rtc_ops = {
 static int twl_rtc_probe(struct platform_device *pdev)
 {
        struct twl_rtc *twl_rtc;
+       struct device_node *np = pdev->dev.of_node;
        int ret = -EINVAL;
        int irq = platform_get_irq(pdev, 0);
        u8 rd_reg;
 
+       if (!np) {
+               dev_err(&pdev->dev, "no DT info\n");
+               return -EINVAL;
+       }
+
        if (irq <= 0)
                return ret;
 
@@ -632,15 +638,11 @@ static int twl_rtc_resume(struct device *dev)
 
 static SIMPLE_DEV_PM_OPS(twl_rtc_pm_ops, twl_rtc_suspend, twl_rtc_resume);
 
-#ifdef CONFIG_OF
 static const struct of_device_id twl_rtc_of_match[] = {
        {.compatible = "ti,twl4030-rtc", },
        { },
 };
 MODULE_DEVICE_TABLE(of, twl_rtc_of_match);
-#endif
-
-MODULE_ALIAS("platform:twl_rtc");
 
 static struct platform_driver twl4030rtc_driver = {
        .probe          = twl_rtc_probe,
@@ -649,7 +651,7 @@ static struct platform_driver twl4030rtc_driver = {
        .driver         = {
                .name           = "twl_rtc",
                .pm             = &twl_rtc_pm_ops,
-               .of_match_table = of_match_ptr(twl_rtc_of_match),
+               .of_match_table = twl_rtc_of_match,
        },
 };