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authorShawn Guo <shawn.guo@linaro.org>2012-09-15 14:26:14 +0800
committerShawn Guo <shawn.guo@linaro.org>2012-10-15 10:03:16 +0800
commitbb1d34a20d537e2f2342db8b5918512f05b0f852 (patch)
treef98a0ccfd5a959a4638715df601cdd9561765771
parent4d62435f0601ecec379fdc48749a10353fee8217 (diff)
rtc: mxc_rtc: remove cpu_is_xxx by using platform_device_id
It changes the driver to use platform_device_id rather than cpu_is_xxx to determine the controller type, and updates the platform code accordingly. As the result, mach/hardware.h inclusion gets removed from the driver. Signed-off-by: Shawn Guo <shawn.guo@linaro.org> Acked-by: Sascha Hauer <s.hauer@pengutronix.de> Acked-by: Arnd Bergmann <arnd@arndb.de> Cc: Andrew Morton <akpm@linux-foundation.org> Cc: rtc-linux@googlegroups.com
-rw-r--r--arch/arm/mach-imx/clk-imx1.c2
-rw-r--r--arch/arm/mach-imx/clk-imx27.c2
-rw-r--r--arch/arm/mach-imx/clk-imx31.c2
-rw-r--r--arch/arm/mach-imx/devices/devices-common.h1
-rw-r--r--arch/arm/mach-imx/devices/platform-mxc_rtc.c9
-rw-r--r--drivers/rtc/rtc-mxc.c34
6 files changed, 40 insertions, 10 deletions
diff --git a/arch/arm/mach-imx/clk-imx1.c b/arch/arm/mach-imx/clk-imx1.c
index 198238859446..1cc7a735ed19 100644
--- a/arch/arm/mach-imx/clk-imx1.c
+++ b/arch/arm/mach-imx/clk-imx1.c
@@ -106,7 +106,7 @@ int __init mx1_clocks_init(unsigned long fref)
clk_register_clkdev(clk[dummy], "ahb", "imx-fb.0");
clk_register_clkdev(clk[hclk], "mshc", NULL);
clk_register_clkdev(clk[per3], "ssi", NULL);
- clk_register_clkdev(clk[clk32], NULL, "mxc_rtc.0");
+ clk_register_clkdev(clk[clk32], NULL, "imx1-rtc.0");
clk_register_clkdev(clk[clko], "clko", NULL);
mxc_timer_init(MX1_IO_ADDRESS(MX1_TIM1_BASE_ADDR), MX1_TIM1_INT);
diff --git a/arch/arm/mach-imx/clk-imx27.c b/arch/arm/mach-imx/clk-imx27.c
index 100e38c48f9f..86a0c4262471 100644
--- a/arch/arm/mach-imx/clk-imx27.c
+++ b/arch/arm/mach-imx/clk-imx27.c
@@ -259,7 +259,7 @@ int __init mx27_clocks_init(unsigned long fref)
clk_register_clkdev(clk[gpio_ipg_gate], "gpio", NULL);
clk_register_clkdev(clk[brom_ahb_gate], "brom", NULL);
clk_register_clkdev(clk[ata_ahb_gate], "ata", NULL);
- clk_register_clkdev(clk[rtc_ipg_gate], NULL, "mxc_rtc");
+ clk_register_clkdev(clk[rtc_ipg_gate], NULL, "imx21-rtc");
clk_register_clkdev(clk[scc_ipg_gate], "scc", NULL);
clk_register_clkdev(clk[cpu_div], "cpu", NULL);
clk_register_clkdev(clk[emi_ahb_gate], "emi_ahb" , NULL);
diff --git a/arch/arm/mach-imx/clk-imx31.c b/arch/arm/mach-imx/clk-imx31.c
index 729d1a9dbf6a..d9ff16e2b1e2 100644
--- a/arch/arm/mach-imx/clk-imx31.c
+++ b/arch/arm/mach-imx/clk-imx31.c
@@ -124,7 +124,7 @@ int __init mx31_clocks_init(unsigned long fref)
clk_register_clkdev(clk[cspi3_gate], NULL, "imx31-cspi.2");
clk_register_clkdev(clk[pwm_gate], "pwm", NULL);
clk_register_clkdev(clk[wdog_gate], NULL, "imx2-wdt.0");
- clk_register_clkdev(clk[rtc_gate], NULL, "mxc_rtc");
+ clk_register_clkdev(clk[rtc_gate], NULL, "imx21-rtc");
clk_register_clkdev(clk[epit1_gate], "epit", NULL);
clk_register_clkdev(clk[epit2_gate], "epit", NULL);
clk_register_clkdev(clk[nfc], NULL, "imx27-nand.0");
diff --git a/arch/arm/mach-imx/devices/devices-common.h b/arch/arm/mach-imx/devices/devices-common.h
index 30a842ffc553..1472f0fc325c 100644
--- a/arch/arm/mach-imx/devices/devices-common.h
+++ b/arch/arm/mach-imx/devices/devices-common.h
@@ -292,6 +292,7 @@ struct platform_device *__init imx_add_mxc_pwm(
/* mxc_rtc */
struct imx_mxc_rtc_data {
+ const char *devid;
resource_size_t iobase;
resource_size_t irq;
};
diff --git a/arch/arm/mach-imx/devices/platform-mxc_rtc.c b/arch/arm/mach-imx/devices/platform-mxc_rtc.c
index daaf9795db18..f35f848b0d5a 100644
--- a/arch/arm/mach-imx/devices/platform-mxc_rtc.c
+++ b/arch/arm/mach-imx/devices/platform-mxc_rtc.c
@@ -9,20 +9,21 @@
#include <mach/hardware.h>
#include "devices-common.h"
-#define imx_mxc_rtc_data_entry_single(soc) \
+#define imx_mxc_rtc_data_entry_single(soc, _devid) \
{ \
+ .devid = _devid, \
.iobase = soc ## _RTC_BASE_ADDR, \
.irq = soc ## _INT_RTC, \
}
#ifdef CONFIG_SOC_IMX31
const struct imx_mxc_rtc_data imx31_mxc_rtc_data __initconst =
- imx_mxc_rtc_data_entry_single(MX31);
+ imx_mxc_rtc_data_entry_single(MX31, "imx21-rtc");
#endif /* ifdef CONFIG_SOC_IMX31 */
#ifdef CONFIG_SOC_IMX35
const struct imx_mxc_rtc_data imx35_mxc_rtc_data __initconst =
- imx_mxc_rtc_data_entry_single(MX35);
+ imx_mxc_rtc_data_entry_single(MX35, "imx21-rtc");
#endif /* ifdef CONFIG_SOC_IMX35 */
struct platform_device *__init imx_add_mxc_rtc(
@@ -40,6 +41,6 @@ struct platform_device *__init imx_add_mxc_rtc(
},
};
- return imx_add_platform_device("mxc_rtc", -1,
+ return imx_add_platform_device(data->devid, -1,
res, ARRAY_SIZE(res), NULL, 0);
}
diff --git a/drivers/rtc/rtc-mxc.c b/drivers/rtc/rtc-mxc.c
index cd0106293a49..7304139934aa 100644
--- a/drivers/rtc/rtc-mxc.c
+++ b/drivers/rtc/rtc-mxc.c
@@ -17,8 +17,6 @@
#include <linux/platform_device.h>
#include <linux/clk.h>
-#include <mach/hardware.h>
-
#define RTC_INPUT_CLK_32768HZ (0x00 << 5)
#define RTC_INPUT_CLK_32000HZ (0x01 << 5)
#define RTC_INPUT_CLK_38400HZ (0x02 << 5)
@@ -72,14 +70,38 @@ static const u32 PIE_BIT_DEF[MAX_PIE_NUM][2] = {
#define RTC_TEST2 0x2C /* 32bit rtc test reg 2 */
#define RTC_TEST3 0x30 /* 32bit rtc test reg 3 */
+enum imx_rtc_type {
+ IMX1_RTC,
+ IMX21_RTC,
+};
+
struct rtc_plat_data {
struct rtc_device *rtc;
void __iomem *ioaddr;
int irq;
struct clk *clk;
struct rtc_time g_rtc_alarm;
+ enum imx_rtc_type devtype;
};
+static struct platform_device_id imx_rtc_devtype[] = {
+ {
+ .name = "imx1-rtc",
+ .driver_data = IMX1_RTC,
+ }, {
+ .name = "imx21-rtc",
+ .driver_data = IMX21_RTC,
+ }, {
+ /* sentinel */
+ }
+};
+MODULE_DEVICE_TABLE(platform, imx_rtc_devtype);
+
+static inline int is_imx1_rtc(struct rtc_plat_data *data)
+{
+ return data->devtype == IMX1_RTC;
+}
+
/*
* This function is used to obtain the RTC time or the alarm value in
* second.
@@ -278,10 +300,13 @@ static int mxc_rtc_read_time(struct device *dev, struct rtc_time *tm)
*/
static int mxc_rtc_set_mmss(struct device *dev, unsigned long time)
{
+ struct platform_device *pdev = to_platform_device(dev);
+ struct rtc_plat_data *pdata = platform_get_drvdata(pdev);
+
/*
* TTC_DAYR register is 9-bit in MX1 SoC, save time and day of year only
*/
- if (cpu_is_mx1()) {
+ if (is_imx1_rtc(pdata)) {
struct rtc_time tm;
rtc_time_to_tm(time, &tm);
@@ -360,6 +385,8 @@ static int __devinit mxc_rtc_probe(struct platform_device *pdev)
if (!pdata)
return -ENOMEM;
+ pdata->devtype = pdev->id_entry->driver_data;
+
if (!devm_request_mem_region(&pdev->dev, res->start,
resource_size(res), pdev->name))
return -EBUSY;
@@ -480,6 +507,7 @@ static struct platform_driver mxc_rtc_driver = {
#endif
.owner = THIS_MODULE,
},
+ .id_table = imx_rtc_devtype,
.probe = mxc_rtc_probe,
.remove = __devexit_p(mxc_rtc_remove),
};