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	rtc: s3c: add s3c_rtc_data structure to use variant data instead of s3c_cpu_type
Add s3c_rtc_data structure to variant data according to SoC type. The s3c_rtc_data structure includes some functions to control RTC operation and specific data dependent on SoC type. Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Kyungmin Park <kyungmin.park@samsung.com> Cc: Alessandro Zummo <a.zummo@towertech.it> Cc: Kukjin Kim <kgene.kim@samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
		
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					 1 changed files with 297 additions and 180 deletions
				
			
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			@ -32,17 +32,6 @@
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#include <asm/irq.h>
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#include "rtc-s3c.h"
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enum s3c_cpu_type {
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	TYPE_S3C2410,
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	TYPE_S3C2416,
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	TYPE_S3C2443,
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	TYPE_S3C64XX,
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};
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struct s3c_rtc_drv_data {
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	int cpu_type;
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};
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struct s3c_rtc {
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	struct device *dev;
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	struct rtc_device *rtc;
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			@ -51,7 +40,7 @@ struct s3c_rtc {
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	struct clk *rtc_clk;
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	bool enabled;
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	enum s3c_cpu_type cpu_type;
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	struct s3c_rtc_data *data;
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	int irq_alarm;
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	int irq_tick;
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			@ -63,6 +52,19 @@ struct s3c_rtc {
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	bool wake_en;
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};
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struct s3c_rtc_data {
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	int max_user_freq;
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	void (*irq_handler) (struct s3c_rtc *info, int mask);
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	void (*set_freq) (struct s3c_rtc *info, int freq);
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	void (*enable_tick) (struct s3c_rtc *info, struct seq_file *seq);
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	void (*select_tick_clk) (struct s3c_rtc *info);
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	void (*save_tick_cnt) (struct s3c_rtc *info);
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	void (*restore_tick_cnt) (struct s3c_rtc *info);
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	void (*enable) (struct s3c_rtc *info);
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	void (*disable) (struct s3c_rtc *info);
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};
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static void s3c_rtc_alarm_clk_enable(struct s3c_rtc *info, bool enable)
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{
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	unsigned long irq_flags;
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			@ -83,34 +85,22 @@ static void s3c_rtc_alarm_clk_enable(struct s3c_rtc *info, bool enable)
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}
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/* IRQ Handlers */
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static irqreturn_t s3c_rtc_alarmirq(int irq, void *id)
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{
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	struct s3c_rtc *info = (struct s3c_rtc *)id;
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	clk_enable(info->rtc_clk);
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	rtc_update_irq(info->rtc, 1, RTC_AF | RTC_IRQF);
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	if (info->cpu_type == TYPE_S3C64XX)
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		writeb(S3C2410_INTP_ALM, info->base + S3C2410_INTP);
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	clk_disable(info->rtc_clk);
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	s3c_rtc_alarm_clk_enable(info, false);
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	return IRQ_HANDLED;
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}
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static irqreturn_t s3c_rtc_tickirq(int irq, void *id)
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{
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	struct s3c_rtc *info = (struct s3c_rtc *)id;
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	clk_enable(info->rtc_clk);
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	rtc_update_irq(info->rtc, 1, RTC_PF | RTC_IRQF);
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	if (info->data->irq_handler)
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		info->data->irq_handler(info, S3C2410_INTP_TIC);
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	if (info->cpu_type == TYPE_S3C64XX)
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		writeb(S3C2410_INTP_TIC, info->base + S3C2410_INTP);
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	return IRQ_HANDLED;
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}
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	clk_disable(info->rtc_clk);
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static irqreturn_t s3c_rtc_alarmirq(int irq, void *id)
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{
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	struct s3c_rtc *info = (struct s3c_rtc *)id;
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	if (info->data->irq_handler)
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		info->data->irq_handler(info, S3C2410_INTP_ALM);
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	return IRQ_HANDLED;
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}
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			@ -137,36 +127,18 @@ static int s3c_rtc_setaie(struct device *dev, unsigned int enabled)
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	return 0;
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}
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/* Set RTC frequency */
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static int s3c_rtc_setfreq(struct s3c_rtc *info, int freq)
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{
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	unsigned int tmp = 0;
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	int val;
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	if (!is_power_of_2(freq))
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		return -EINVAL;
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	clk_enable(info->rtc_clk);
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	spin_lock_irq(&info->pie_lock);
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	if (info->cpu_type != TYPE_S3C64XX) {
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		tmp = readb(info->base + S3C2410_TICNT);
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		tmp &= S3C2410_TICNT_ENABLE;
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	}
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	if (info->data->set_freq)
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		info->data->set_freq(info, freq);
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	val = (info->rtc->max_user_freq / freq) - 1;
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	if (info->cpu_type == TYPE_S3C2416 || info->cpu_type == TYPE_S3C2443) {
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		tmp |= S3C2443_TICNT_PART(val);
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		writel(S3C2443_TICNT1_PART(val), info->base + S3C2443_TICNT1);
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		if (info->cpu_type == TYPE_S3C2416)
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			writel(S3C2416_TICNT2_PART(val),
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				info->base + S3C2416_TICNT2);
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	} else {
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		tmp |= val;
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	}
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	writel(tmp, info->base + S3C2410_TICNT);
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	spin_unlock_irq(&info->pie_lock);
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	clk_disable(info->rtc_clk);
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			@ -174,7 +146,6 @@ static int s3c_rtc_setfreq(struct s3c_rtc *info, int freq)
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}
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/* Time read/write */
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static int s3c_rtc_gettime(struct device *dev, struct rtc_time *rtc_tm)
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{
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	struct s3c_rtc *info = dev_get_drvdata(dev);
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			@ -355,19 +326,14 @@ static int s3c_rtc_setalarm(struct device *dev, struct rtc_wkalrm *alrm)
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static int s3c_rtc_proc(struct device *dev, struct seq_file *seq)
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{
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	struct s3c_rtc *info = dev_get_drvdata(dev);
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	unsigned int ticnt;
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	clk_enable(info->rtc_clk);
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	if (info->cpu_type == TYPE_S3C64XX) {
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		ticnt = readw(info->base + S3C2410_RTCCON);
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		ticnt &= S3C64XX_RTCCON_TICEN;
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	} else {
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		ticnt = readb(info->base + S3C2410_TICNT);
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		ticnt &= S3C2410_TICNT_ENABLE;
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	}
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	seq_printf(seq, "periodic_IRQ\t: %s\n", ticnt  ? "yes" : "no");
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	if (info->data->enable_tick)
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		info->data->enable_tick(info, seq);
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	clk_disable(info->rtc_clk);
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	return 0;
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}
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			@ -380,50 +346,69 @@ static const struct rtc_class_ops s3c_rtcops = {
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	.alarm_irq_enable = s3c_rtc_setaie,
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};
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static void s3c_rtc_enable(struct s3c_rtc *info, int en)
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static void s3c24xx_rtc_enable(struct s3c_rtc *info)
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{
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	unsigned int con, tmp;
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	clk_enable(info->rtc_clk);
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	con = readw(info->base + S3C2410_RTCCON);
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	if (!en) {
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		if (info->cpu_type == TYPE_S3C64XX)
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			con &= ~S3C64XX_RTCCON_TICEN;
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		con &= ~S3C2410_RTCCON_RTCEN;
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		writew(con, info->base + S3C2410_RTCCON);
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	/* re-enable the device, and check it is ok */
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	if ((con & S3C2410_RTCCON_RTCEN) == 0) {
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		dev_info(info->dev, "rtc disabled, re-enabling\n");
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		if (info->cpu_type != TYPE_S3C64XX) {
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			con = readb(info->base + S3C2410_TICNT);
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			con &= ~S3C2410_TICNT_ENABLE;
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			writeb(con, info->base + S3C2410_TICNT);
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		}
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	} else {
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		/* re-enable the device, and check it is ok */
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		if ((con & S3C2410_RTCCON_RTCEN) == 0) {
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			dev_info(info->dev, "rtc disabled, re-enabling\n");
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			tmp = readw(info->base + S3C2410_RTCCON);
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			writew(tmp | S3C2410_RTCCON_RTCEN,
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				info->base + S3C2410_RTCCON);
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		}
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		if (con & S3C2410_RTCCON_CNTSEL) {
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			dev_info(info->dev, "removing RTCCON_CNTSEL\n");
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			tmp = readw(info->base + S3C2410_RTCCON);
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			writew(tmp & ~S3C2410_RTCCON_CNTSEL,
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				info->base + S3C2410_RTCCON);
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		}
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		if (con & S3C2410_RTCCON_CLKRST) {
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			dev_info(info->dev, "removing RTCCON_CLKRST\n");
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			tmp = readw(info->base + S3C2410_RTCCON);
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			writew(tmp & ~S3C2410_RTCCON_CLKRST,
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				info->base + S3C2410_RTCCON);
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		}
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		tmp = readw(info->base + S3C2410_RTCCON);
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		writew(tmp | S3C2410_RTCCON_RTCEN,
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			info->base + S3C2410_RTCCON);
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	}
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	if (con & S3C2410_RTCCON_CNTSEL) {
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		dev_info(info->dev, "removing RTCCON_CNTSEL\n");
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		tmp = readw(info->base + S3C2410_RTCCON);
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		writew(tmp & ~S3C2410_RTCCON_CNTSEL,
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			info->base + S3C2410_RTCCON);
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	}
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	if (con & S3C2410_RTCCON_CLKRST) {
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		dev_info(info->dev, "removing RTCCON_CLKRST\n");
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		tmp = readw(info->base + S3C2410_RTCCON);
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		writew(tmp & ~S3C2410_RTCCON_CLKRST,
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			info->base + S3C2410_RTCCON);
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	}
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	clk_disable(info->rtc_clk);
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}
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static void s3c24xx_rtc_disable(struct s3c_rtc *info)
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{
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	unsigned int con;
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	clk_enable(info->rtc_clk);
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	con = readw(info->base + S3C2410_RTCCON);
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	con &= ~S3C2410_RTCCON_RTCEN;
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	writew(con, info->base + S3C2410_RTCCON);
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	con = readb(info->base + S3C2410_TICNT);
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	con &= ~S3C2410_TICNT_ENABLE;
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	writeb(con, info->base + S3C2410_TICNT);
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	clk_disable(info->rtc_clk);
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}
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static void s3c6410_rtc_disable(struct s3c_rtc *info)
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{
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	unsigned int con;
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	clk_enable(info->rtc_clk);
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	con = readw(info->base + S3C2410_RTCCON);
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	con &= ~S3C64XX_RTCCON_TICEN;
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	con &= ~S3C2410_RTCCON_RTCEN;
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	writew(con, info->base + S3C2410_RTCCON);
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	clk_disable(info->rtc_clk);
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}
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			@ -441,20 +426,12 @@ static int s3c_rtc_remove(struct platform_device *pdev)
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static const struct of_device_id s3c_rtc_dt_match[];
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static inline int s3c_rtc_get_driver_data(struct platform_device *pdev)
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static struct s3c_rtc_data *s3c_rtc_get_data(struct platform_device *pdev)
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{
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#ifdef CONFIG_OF
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	struct s3c_rtc_drv_data *data;
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	const struct of_device_id *match;
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	if (pdev->dev.of_node) {
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		const struct of_device_id *match;
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		match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node);
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		data = (struct s3c_rtc_drv_data *) match->data;
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		return data->cpu_type;
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	}
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#endif
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	return platform_get_device_id(pdev)->driver_data;
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	match = of_match_node(s3c_rtc_dt_match, pdev->dev.of_node);
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	return (struct s3c_rtc_data *)match->data;
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}
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static int s3c_rtc_probe(struct platform_device *pdev)
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						 | 
				
			
			@ -463,7 +440,6 @@ static int s3c_rtc_probe(struct platform_device *pdev)
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	struct rtc_time rtc_tm;
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	struct resource *res;
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	int ret;
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	int tmp;
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	info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
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	if (!info)
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						 | 
				
			
			@ -477,7 +453,11 @@ static int s3c_rtc_probe(struct platform_device *pdev)
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	}
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	info->dev = &pdev->dev;
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	info->cpu_type = s3c_rtc_get_driver_data(pdev);
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	info->data = s3c_rtc_get_data(pdev);
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	if (!info->data) {
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		dev_err(&pdev->dev, "failed getting s3c_rtc_data\n");
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		return -EINVAL;
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	}
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	spin_lock_init(&info->pie_lock);
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	spin_lock_init(&info->alarm_clk_lock);
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						 | 
				
			
			@ -506,7 +486,8 @@ static int s3c_rtc_probe(struct platform_device *pdev)
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	clk_prepare_enable(info->rtc_clk);
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	/* check to see if everything is setup correctly */
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	s3c_rtc_enable(info, 1);
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	if (info->data->enable)
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		info->data->enable(info);
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	dev_dbg(&pdev->dev, "s3c2410_rtc: RTCCON=%02x\n",
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		 readw(info->base + S3C2410_RTCCON));
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						 | 
				
			
			@ -552,16 +533,8 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 | 
			
		|||
		dev_warn(&pdev->dev, "warning: invalid RTC value so initializing it\n");
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if (info->cpu_type != TYPE_S3C2410)
 | 
			
		||||
		info->rtc->max_user_freq = 32768;
 | 
			
		||||
	else
 | 
			
		||||
		info->rtc->max_user_freq = 128;
 | 
			
		||||
 | 
			
		||||
	if (info->cpu_type == TYPE_S3C2416 || info->cpu_type == TYPE_S3C2443) {
 | 
			
		||||
		tmp = readw(info->base + S3C2410_RTCCON);
 | 
			
		||||
		tmp |= S3C2443_RTCCON_TICSEL;
 | 
			
		||||
		writew(tmp, info->base + S3C2410_RTCCON);
 | 
			
		||||
	}
 | 
			
		||||
	if (info->data->select_tick_clk)
 | 
			
		||||
		info->data->select_tick_clk(info);
 | 
			
		||||
 | 
			
		||||
	s3c_rtc_setfreq(info, 1);
 | 
			
		||||
 | 
			
		||||
| 
						 | 
				
			
			@ -570,7 +543,8 @@ static int s3c_rtc_probe(struct platform_device *pdev)
 | 
			
		|||
	return 0;
 | 
			
		||||
 | 
			
		||||
 err_nortc:
 | 
			
		||||
	s3c_rtc_enable(info, 0);
 | 
			
		||||
	if (info->data->disable)
 | 
			
		||||
		info->data->disable(info);
 | 
			
		||||
	clk_disable_unprepare(info->rtc_clk);
 | 
			
		||||
 | 
			
		||||
	return ret;
 | 
			
		||||
| 
						 | 
				
			
			@ -583,15 +557,13 @@ static int s3c_rtc_suspend(struct device *dev)
 | 
			
		|||
	struct s3c_rtc *info = dev_get_drvdata(dev);
 | 
			
		||||
 | 
			
		||||
	clk_enable(info->rtc_clk);
 | 
			
		||||
 | 
			
		||||
	/* save TICNT for anyone using periodic interrupts */
 | 
			
		||||
	if (info->cpu_type == TYPE_S3C64XX) {
 | 
			
		||||
		info->ticnt_en_save = readw(info->base + S3C2410_RTCCON);
 | 
			
		||||
		info->ticnt_en_save &= S3C64XX_RTCCON_TICEN;
 | 
			
		||||
		info->ticnt_save = readl(info->base + S3C2410_TICNT);
 | 
			
		||||
	} else {
 | 
			
		||||
		info->ticnt_save = readb(info->base + S3C2410_TICNT);
 | 
			
		||||
	}
 | 
			
		||||
	s3c_rtc_enable(info, 0);
 | 
			
		||||
	if (info->data->save_tick_cnt)
 | 
			
		||||
		info->data->save_tick_cnt(info);
 | 
			
		||||
 | 
			
		||||
	if (info->data->disable)
 | 
			
		||||
		info->data->disable(info);
 | 
			
		||||
 | 
			
		||||
	if (device_may_wakeup(dev) && !info->wake_en) {
 | 
			
		||||
		if (enable_irq_wake(info->irq_alarm) == 0)
 | 
			
		||||
| 
						 | 
				
			
			@ -599,6 +571,7 @@ static int s3c_rtc_suspend(struct device *dev)
 | 
			
		|||
		else
 | 
			
		||||
			dev_err(dev, "enable_irq_wake failed\n");
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	clk_disable(info->rtc_clk);
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
| 
						 | 
				
			
			@ -607,25 +580,20 @@ static int s3c_rtc_suspend(struct device *dev)
 | 
			
		|||
static int s3c_rtc_resume(struct device *dev)
 | 
			
		||||
{
 | 
			
		||||
	struct s3c_rtc *info = dev_get_drvdata(dev);
 | 
			
		||||
	unsigned int tmp;
 | 
			
		||||
 | 
			
		||||
	clk_enable(info->rtc_clk);
 | 
			
		||||
	s3c_rtc_enable(info, 1);
 | 
			
		||||
	if (info->cpu_type == TYPE_S3C64XX) {
 | 
			
		||||
		writel(info->ticnt_save, info->base + S3C2410_TICNT);
 | 
			
		||||
		if (info->ticnt_en_save) {
 | 
			
		||||
			tmp = readw(info->base + S3C2410_RTCCON);
 | 
			
		||||
			writew(tmp | info->ticnt_en_save,
 | 
			
		||||
					info->base + S3C2410_RTCCON);
 | 
			
		||||
		}
 | 
			
		||||
	} else {
 | 
			
		||||
		writeb(info->ticnt_save, info->base + S3C2410_TICNT);
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	if (info->data->enable)
 | 
			
		||||
		info->data->enable(info);
 | 
			
		||||
 | 
			
		||||
	if (info->data->restore_tick_cnt)
 | 
			
		||||
		info->data->restore_tick_cnt(info);
 | 
			
		||||
 | 
			
		||||
	if (device_may_wakeup(dev) && info->wake_en) {
 | 
			
		||||
		disable_irq_wake(info->irq_alarm);
 | 
			
		||||
		info->wake_en = false;
 | 
			
		||||
	}
 | 
			
		||||
 | 
			
		||||
	clk_disable(info->rtc_clk);
 | 
			
		||||
 | 
			
		||||
	return 0;
 | 
			
		||||
| 
						 | 
				
			
			@ -633,56 +601,206 @@ static int s3c_rtc_resume(struct device *dev)
 | 
			
		|||
#endif
 | 
			
		||||
static SIMPLE_DEV_PM_OPS(s3c_rtc_pm_ops, s3c_rtc_suspend, s3c_rtc_resume);
 | 
			
		||||
 | 
			
		||||
#ifdef CONFIG_OF
 | 
			
		||||
static struct s3c_rtc_drv_data s3c_rtc_drv_data_array[] = {
 | 
			
		||||
	[TYPE_S3C2410] = { TYPE_S3C2410 },
 | 
			
		||||
	[TYPE_S3C2416] = { TYPE_S3C2416 },
 | 
			
		||||
	[TYPE_S3C2443] = { TYPE_S3C2443 },
 | 
			
		||||
	[TYPE_S3C64XX] = { TYPE_S3C64XX },
 | 
			
		||||
static void s3c24xx_rtc_irq(struct s3c_rtc *info, int mask)
 | 
			
		||||
{
 | 
			
		||||
	clk_enable(info->rtc_clk);
 | 
			
		||||
	rtc_update_irq(info->rtc, 1, RTC_AF | RTC_IRQF);
 | 
			
		||||
	clk_disable(info->rtc_clk);
 | 
			
		||||
 | 
			
		||||
	s3c_rtc_alarm_clk_enable(info, false);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c6410_rtc_irq(struct s3c_rtc *info, int mask)
 | 
			
		||||
{
 | 
			
		||||
	clk_enable(info->rtc_clk);
 | 
			
		||||
	rtc_update_irq(info->rtc, 1, RTC_AF | RTC_IRQF);
 | 
			
		||||
	writeb(mask, info->base + S3C2410_INTP);
 | 
			
		||||
	clk_disable(info->rtc_clk);
 | 
			
		||||
 | 
			
		||||
	s3c_rtc_alarm_clk_enable(info, false);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c2410_rtc_setfreq(struct s3c_rtc *info, int freq)
 | 
			
		||||
{
 | 
			
		||||
	unsigned int tmp = 0;
 | 
			
		||||
	int val;
 | 
			
		||||
 | 
			
		||||
	tmp = readb(info->base + S3C2410_TICNT);
 | 
			
		||||
	tmp &= S3C2410_TICNT_ENABLE;
 | 
			
		||||
 | 
			
		||||
	val = (info->rtc->max_user_freq / freq) - 1;
 | 
			
		||||
	tmp |= val;
 | 
			
		||||
 | 
			
		||||
	writel(tmp, info->base + S3C2410_TICNT);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c2416_rtc_setfreq(struct s3c_rtc *info, int freq)
 | 
			
		||||
{
 | 
			
		||||
	unsigned int tmp = 0;
 | 
			
		||||
	int val;
 | 
			
		||||
 | 
			
		||||
	tmp = readb(info->base + S3C2410_TICNT);
 | 
			
		||||
	tmp &= S3C2410_TICNT_ENABLE;
 | 
			
		||||
 | 
			
		||||
	val = (info->rtc->max_user_freq / freq) - 1;
 | 
			
		||||
 | 
			
		||||
	tmp |= S3C2443_TICNT_PART(val);
 | 
			
		||||
	writel(S3C2443_TICNT1_PART(val), info->base + S3C2443_TICNT1);
 | 
			
		||||
 | 
			
		||||
	writel(S3C2416_TICNT2_PART(val), info->base + S3C2416_TICNT2);
 | 
			
		||||
 | 
			
		||||
	writel(tmp, info->base + S3C2410_TICNT);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c2443_rtc_setfreq(struct s3c_rtc *info, int freq)
 | 
			
		||||
{
 | 
			
		||||
	unsigned int tmp = 0;
 | 
			
		||||
	int val;
 | 
			
		||||
 | 
			
		||||
	tmp = readb(info->base + S3C2410_TICNT);
 | 
			
		||||
	tmp &= S3C2410_TICNT_ENABLE;
 | 
			
		||||
 | 
			
		||||
	val = (info->rtc->max_user_freq / freq) - 1;
 | 
			
		||||
 | 
			
		||||
	tmp |= S3C2443_TICNT_PART(val);
 | 
			
		||||
	writel(S3C2443_TICNT1_PART(val), info->base + S3C2443_TICNT1);
 | 
			
		||||
 | 
			
		||||
	writel(tmp, info->base + S3C2410_TICNT);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c6410_rtc_setfreq(struct s3c_rtc *info, int freq)
 | 
			
		||||
{
 | 
			
		||||
	int val;
 | 
			
		||||
 | 
			
		||||
	val = (info->rtc->max_user_freq / freq) - 1;
 | 
			
		||||
	writel(val, info->base + S3C2410_TICNT);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c24xx_rtc_enable_tick(struct s3c_rtc *info, struct seq_file *seq)
 | 
			
		||||
{
 | 
			
		||||
	unsigned int ticnt;
 | 
			
		||||
 | 
			
		||||
	ticnt = readb(info->base + S3C2410_TICNT);
 | 
			
		||||
	ticnt &= S3C2410_TICNT_ENABLE;
 | 
			
		||||
 | 
			
		||||
	seq_printf(seq, "periodic_IRQ\t: %s\n", ticnt  ? "yes" : "no");
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c2416_rtc_select_tick_clk(struct s3c_rtc *info)
 | 
			
		||||
{
 | 
			
		||||
	unsigned int con;
 | 
			
		||||
 | 
			
		||||
	con = readw(info->base + S3C2410_RTCCON);
 | 
			
		||||
	con |= S3C2443_RTCCON_TICSEL;
 | 
			
		||||
	writew(con, info->base + S3C2410_RTCCON);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c6410_rtc_enable_tick(struct s3c_rtc *info, struct seq_file *seq)
 | 
			
		||||
{
 | 
			
		||||
	unsigned int ticnt;
 | 
			
		||||
 | 
			
		||||
	ticnt = readw(info->base + S3C2410_RTCCON);
 | 
			
		||||
	ticnt &= S3C64XX_RTCCON_TICEN;
 | 
			
		||||
 | 
			
		||||
	seq_printf(seq, "periodic_IRQ\t: %s\n", ticnt  ? "yes" : "no");
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c24xx_rtc_save_tick_cnt(struct s3c_rtc *info)
 | 
			
		||||
{
 | 
			
		||||
	info->ticnt_save = readb(info->base + S3C2410_TICNT);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c24xx_rtc_restore_tick_cnt(struct s3c_rtc *info)
 | 
			
		||||
{
 | 
			
		||||
	writeb(info->ticnt_save, info->base + S3C2410_TICNT);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c6410_rtc_save_tick_cnt(struct s3c_rtc *info)
 | 
			
		||||
{
 | 
			
		||||
	info->ticnt_en_save = readw(info->base + S3C2410_RTCCON);
 | 
			
		||||
	info->ticnt_en_save &= S3C64XX_RTCCON_TICEN;
 | 
			
		||||
	info->ticnt_save = readl(info->base + S3C2410_TICNT);
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static void s3c6410_rtc_restore_tick_cnt(struct s3c_rtc *info)
 | 
			
		||||
{
 | 
			
		||||
	unsigned int con;
 | 
			
		||||
 | 
			
		||||
	writel(info->ticnt_save, info->base + S3C2410_TICNT);
 | 
			
		||||
	if (info->ticnt_en_save) {
 | 
			
		||||
		con = readw(info->base + S3C2410_RTCCON);
 | 
			
		||||
		writew(con | info->ticnt_en_save,
 | 
			
		||||
				info->base + S3C2410_RTCCON);
 | 
			
		||||
	}
 | 
			
		||||
}
 | 
			
		||||
 | 
			
		||||
static struct s3c_rtc_data const s3c2410_rtc_data = {
 | 
			
		||||
	.max_user_freq		= 128,
 | 
			
		||||
	.irq_handler		= s3c24xx_rtc_irq,
 | 
			
		||||
	.set_freq		= s3c2410_rtc_setfreq,
 | 
			
		||||
	.enable_tick		= s3c24xx_rtc_enable_tick,
 | 
			
		||||
	.save_tick_cnt		= s3c24xx_rtc_save_tick_cnt,
 | 
			
		||||
	.restore_tick_cnt	= s3c24xx_rtc_restore_tick_cnt,
 | 
			
		||||
	.enable			= s3c24xx_rtc_enable,
 | 
			
		||||
	.disable		= s3c24xx_rtc_disable,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static struct s3c_rtc_data const s3c2416_rtc_data = {
 | 
			
		||||
	.max_user_freq		= 32768,
 | 
			
		||||
	.irq_handler		= s3c24xx_rtc_irq,
 | 
			
		||||
	.set_freq		= s3c2416_rtc_setfreq,
 | 
			
		||||
	.enable_tick		= s3c24xx_rtc_enable_tick,
 | 
			
		||||
	.select_tick_clk	= s3c2416_rtc_select_tick_clk,
 | 
			
		||||
	.save_tick_cnt		= s3c24xx_rtc_save_tick_cnt,
 | 
			
		||||
	.restore_tick_cnt	= s3c24xx_rtc_restore_tick_cnt,
 | 
			
		||||
	.enable			= s3c24xx_rtc_enable,
 | 
			
		||||
	.disable		= s3c24xx_rtc_disable,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static struct s3c_rtc_data const s3c2443_rtc_data = {
 | 
			
		||||
	.max_user_freq		= 32768,
 | 
			
		||||
	.irq_handler		= s3c24xx_rtc_irq,
 | 
			
		||||
	.set_freq		= s3c2443_rtc_setfreq,
 | 
			
		||||
	.enable_tick		= s3c24xx_rtc_enable_tick,
 | 
			
		||||
	.select_tick_clk	= s3c2416_rtc_select_tick_clk,
 | 
			
		||||
	.save_tick_cnt		= s3c24xx_rtc_save_tick_cnt,
 | 
			
		||||
	.restore_tick_cnt	= s3c24xx_rtc_restore_tick_cnt,
 | 
			
		||||
	.enable			= s3c24xx_rtc_enable,
 | 
			
		||||
	.disable		= s3c24xx_rtc_disable,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static struct s3c_rtc_data const s3c6410_rtc_data = {
 | 
			
		||||
	.max_user_freq		= 32768,
 | 
			
		||||
	.irq_handler		= s3c6410_rtc_irq,
 | 
			
		||||
	.set_freq		= s3c6410_rtc_setfreq,
 | 
			
		||||
	.enable_tick		= s3c6410_rtc_enable_tick,
 | 
			
		||||
	.save_tick_cnt		= s3c6410_rtc_save_tick_cnt,
 | 
			
		||||
	.restore_tick_cnt	= s3c6410_rtc_restore_tick_cnt,
 | 
			
		||||
	.enable			= s3c24xx_rtc_enable,
 | 
			
		||||
	.disable		= s3c6410_rtc_disable,
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
static const struct of_device_id s3c_rtc_dt_match[] = {
 | 
			
		||||
	{
 | 
			
		||||
		.compatible = "samsung,s3c2410-rtc",
 | 
			
		||||
		.data = &s3c_rtc_drv_data_array[TYPE_S3C2410],
 | 
			
		||||
		.data = (void *)&s3c2410_rtc_data,
 | 
			
		||||
	}, {
 | 
			
		||||
		.compatible = "samsung,s3c2416-rtc",
 | 
			
		||||
		.data = &s3c_rtc_drv_data_array[TYPE_S3C2416],
 | 
			
		||||
		.data = (void *)&s3c2416_rtc_data,
 | 
			
		||||
	}, {
 | 
			
		||||
		.compatible = "samsung,s3c2443-rtc",
 | 
			
		||||
		.data = &s3c_rtc_drv_data_array[TYPE_S3C2443],
 | 
			
		||||
		.data = (void *)&s3c2443_rtc_data,
 | 
			
		||||
	}, {
 | 
			
		||||
		.compatible = "samsung,s3c6410-rtc",
 | 
			
		||||
		.data = &s3c_rtc_drv_data_array[TYPE_S3C64XX],
 | 
			
		||||
		.data = (void *)&s3c6410_rtc_data,
 | 
			
		||||
	},
 | 
			
		||||
	{},
 | 
			
		||||
	{ /* sentinel */ },
 | 
			
		||||
};
 | 
			
		||||
MODULE_DEVICE_TABLE(of, s3c_rtc_dt_match);
 | 
			
		||||
#endif
 | 
			
		||||
 | 
			
		||||
static struct platform_device_id s3c_rtc_driver_ids[] = {
 | 
			
		||||
	{
 | 
			
		||||
		.name		= "s3c2410-rtc",
 | 
			
		||||
		.driver_data	= TYPE_S3C2410,
 | 
			
		||||
	}, {
 | 
			
		||||
		.name		= "s3c2416-rtc",
 | 
			
		||||
		.driver_data	= TYPE_S3C2416,
 | 
			
		||||
	}, {
 | 
			
		||||
		.name		= "s3c2443-rtc",
 | 
			
		||||
		.driver_data	= TYPE_S3C2443,
 | 
			
		||||
	}, {
 | 
			
		||||
		.name		= "s3c64xx-rtc",
 | 
			
		||||
		.driver_data	= TYPE_S3C64XX,
 | 
			
		||||
	},
 | 
			
		||||
	{ }
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
MODULE_DEVICE_TABLE(platform, s3c_rtc_driver_ids);
 | 
			
		||||
 | 
			
		||||
static struct platform_driver s3c_rtc_driver = {
 | 
			
		||||
	.probe		= s3c_rtc_probe,
 | 
			
		||||
	.remove		= s3c_rtc_remove,
 | 
			
		||||
	.id_table	= s3c_rtc_driver_ids,
 | 
			
		||||
	.driver		= {
 | 
			
		||||
		.name	= "s3c-rtc",
 | 
			
		||||
		.owner	= THIS_MODULE,
 | 
			
		||||
| 
						 | 
				
			
			@ -690,7 +808,6 @@ static struct platform_driver s3c_rtc_driver = {
 | 
			
		|||
		.of_match_table	= of_match_ptr(s3c_rtc_dt_match),
 | 
			
		||||
	},
 | 
			
		||||
};
 | 
			
		||||
 | 
			
		||||
module_platform_driver(s3c_rtc_driver);
 | 
			
		||||
 | 
			
		||||
MODULE_DESCRIPTION("Samsung S3C RTC Driver");
 | 
			
		||||
| 
						 | 
				
			
			
 | 
			
		|||
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		Reference in a new issue