ARM: at91/rtc-at91sam9: each SoC can select the RTT device to use

For the RTT as RTC driver rtc-at91sam9, the platform_device structure
is filled during SoC initialization. This will allow to convert this
RTC driver as a standard platform driver.

Signed-off-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>

5 files changed, 66 insertions, 0 deletions

diff --git a/arch/arm/mach-at91/at91sam9260_devices.c b/arch/arm/mach-at91/at91sam9260_devices.c
index b93a3376e7b..2071017a475 100644
--- a/arch/arm/mach-at91/at91sam9260_devices.c
+++ b/arch/arm/mach-at91/at91sam9260_devices.c
@@ -728,8 +728,19 @@ static struct platform_device at91sam9260_rtt_device = {
 	.num_resources	= ARRAY_SIZE(rtt_resources),
 };
 
+
+#if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
+static void __init at91_add_device_rtt_rtc(void)
+{
+	at91sam9260_rtt_device.name = "rtc-at91sam9";
+}
+#else
+static void __init at91_add_device_rtt_rtc(void) {}
+#endif
+
 static void __init at91_add_device_rtt(void)
 {
+	at91_add_device_rtt_rtc();
 	platform_device_register(&at91sam9260_rtt_device);
 }
 
diff --git a/arch/arm/mach-at91/at91sam9261_devices.c b/arch/arm/mach-at91/at91sam9261_devices.c
index 52c1f1a3819..b3ceb97d722 100644
--- a/arch/arm/mach-at91/at91sam9261_devices.c
+++ b/arch/arm/mach-at91/at91sam9261_devices.c
@@ -614,8 +614,18 @@ static struct platform_device at91sam9261_rtt_device = {
 	.num_resources	= ARRAY_SIZE(rtt_resources),
 };
 
+#if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
+static void __init at91_add_device_rtt_rtc(void)
+{
+	at91sam9261_rtt_device.name = "rtc-at91sam9";
+}
+#else
+static void __init at91_add_device_rtt_rtc(void) {}
+#endif
+
 static void __init at91_add_device_rtt(void)
 {
+	at91_add_device_rtt_rtc();
 	platform_device_register(&at91sam9261_rtt_device);
 }
 
diff --git a/arch/arm/mach-at91/at91sam9263_devices.c b/arch/arm/mach-at91/at91sam9263_devices.c
index 545826b16a8..b4a6adb39b2 100644
--- a/arch/arm/mach-at91/at91sam9263_devices.c
+++ b/arch/arm/mach-at91/at91sam9263_devices.c
@@ -992,8 +992,33 @@ static struct platform_device at91sam9263_rtt1_device = {
 	.num_resources	= ARRAY_SIZE(rtt1_resources),
 };
 
+#if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
+static void __init at91_add_device_rtt_rtc(void)
+{
+	struct platform_device *pdev;
+
+	switch (CONFIG_RTC_DRV_AT91SAM9_RTT) {
+	case 0:
+		pdev = &at91sam9263_rtt0_device;
+		break;
+	case 1:
+		pdev = &at91sam9263_rtt1_device;
+		break;
+	default:
+		pr_err("at91sam9263: support only 2 RTT (%d)\n",
+			 CONFIG_RTC_DRV_AT91SAM9_RTT);
+		return;
+	}
+
+	pdev->name = "rtc-at91sam9";
+}
+#else
+static void __init at91_add_device_rtt_rtc(void) {}
+#endif
+
 static void __init at91_add_device_rtt(void)
 {
+	at91_add_device_rtt_rtc();
 	platform_device_register(&at91sam9263_rtt0_device);
 	platform_device_register(&at91sam9263_rtt1_device);
 }
diff --git a/arch/arm/mach-at91/at91sam9g45_devices.c b/arch/arm/mach-at91/at91sam9g45_devices.c
index 8c036ff10bb..81d1adf1d97 100644
--- a/arch/arm/mach-at91/at91sam9g45_devices.c
+++ b/arch/arm/mach-at91/at91sam9g45_devices.c
@@ -1204,8 +1204,18 @@ static struct platform_device at91sam9g45_rtt_device = {
 	.num_resources	= ARRAY_SIZE(rtt_resources),
 };
 
+#if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
+static void __init at91_add_device_rtt_rtc(void)
+{
+	at91sam9g45_rtt_device.name = "rtc-at91sam9";
+}
+#else
+static void __init at91_add_device_rtt_rtc(void) {}
+#endif
+
 static void __init at91_add_device_rtt(void)
 {
+	at91_add_device_rtt_rtc();
 	platform_device_register(&at91sam9g45_rtt_device);
 }
 
diff --git a/arch/arm/mach-at91/at91sam9rl_devices.c b/arch/arm/mach-at91/at91sam9rl_devices.c
index 936cf20bc54..dd248c837a7 100644
--- a/arch/arm/mach-at91/at91sam9rl_devices.c
+++ b/arch/arm/mach-at91/at91sam9rl_devices.c
@@ -693,8 +693,18 @@ static struct platform_device at91sam9rl_rtt_device = {
 	.num_resources	= ARRAY_SIZE(rtt_resources),
 };
 
+#if IS_ENABLED(CONFIG_RTC_DRV_AT91SAM9)
+static void __init at91_add_device_rtt_rtc(void)
+{
+	at91sam9rl_rtt_device.name = "rtc-at91sam9";
+}
+#else
+static void __init at91_add_device_rtt_rtc(void) {}
+#endif
+
 static void __init at91_add_device_rtt(void)
 {
+	at91_add_device_rtt_rtc();
 	platform_device_register(&at91sam9rl_rtt_device);
 }