Commit d7de1c3a authored by Arnd Bergmann's avatar Arnd Bergmann Committed by Geert Uytterhoeven
Browse files

m68k: Remove unused set_clock_mmss() helpers 



Commit 397ac99c ("m68k: remove dead timer code") removed set_rtc_mmss()
because it was unused in 2012. However, this was itself the only user of the
mach_set_clock_mmss() callback and the many implementations of that callback,
which are equally unused.

This removes all of those as well.

Signed-off-by: default avatarArnd Bergmann <arnd@arndb.de>
Acked-by: default avatarGreg Ungerer <gerg@linux-m68k.org>
Signed-off-by: default avatarGeert Uytterhoeven <geert@linux-m68k.org>
parent 5b9bfb8e

arch/m68k/apollo/config.c

+0 −8
Original line number Diff line number Diff line
@@ -31,7 +31,6 @@ extern void dn_sched_init(irq_handler_t handler); 
extern void dn_init_IRQ(void);

extern u32 dn_gettimeoffset(void);

extern int dn_dummy_hwclk(int, struct rtc_time *);

extern int dn_dummy_set_clock_mmss(unsigned long);

extern void dn_dummy_reset(void);

#ifdef CONFIG_HEARTBEAT

static void dn_heartbeat(int on);
@@ -156,7 +155,6 @@ void __init config_apollo(void) 
	arch_gettimeoffset   = dn_gettimeoffset;

	mach_max_dma_address = 0xffffffff;

	mach_hwclk           = dn_dummy_hwclk; /* */

	mach_set_clock_mmss  = dn_dummy_set_clock_mmss; /* */

	mach_reset	     = dn_dummy_reset;  /* */

#ifdef CONFIG_HEARTBEAT

	mach_heartbeat = dn_heartbeat;
@@ -240,12 +238,6 @@ int dn_dummy_hwclk(int op, struct rtc_time *t) { 


}



int dn_dummy_set_clock_mmss(unsigned long nowtime)

{

	pr_info("set_clock_mmss\n");

	return 0;

}



void dn_dummy_reset(void) {



  dn_serial_print("The end !\n");

arch/m68k/atari/config.c

+0 −5
Original line number Diff line number Diff line
@@ -81,9 +81,6 @@ extern void atari_sched_init(irq_handler_t); 
extern u32 atari_gettimeoffset(void);

extern int atari_mste_hwclk (int, struct rtc_time *);

extern int atari_tt_hwclk (int, struct rtc_time *);

extern int atari_mste_set_clock_mmss (unsigned long);

extern int atari_tt_set_clock_mmss (unsigned long);





/* ++roman: This is a more elaborate test for an SCC chip, since the plain

 * Medusa board generates DTACK at the SCC's standard addresses, but a SCC
@@ -362,13 +359,11 @@ void __init config_atari(void) 
		ATARIHW_SET(TT_CLK);

		pr_cont(" TT_CLK");

		mach_hwclk = atari_tt_hwclk;

		mach_set_clock_mmss = atari_tt_set_clock_mmss;

	}

	if (hwreg_present(&mste_rtc.sec_ones)) {

		ATARIHW_SET(MSTE_CLK);

		pr_cont(" MSTE_CLK");

		mach_hwclk = atari_mste_hwclk;

		mach_set_clock_mmss = atari_mste_set_clock_mmss;

	}

	if (!MACH_IS_MEDUSA && hwreg_present(&dma_wd.fdc_speed) &&

	    hwreg_write(&dma_wd.fdc_speed, 0)) {

arch/m68k/atari/time.c

+0 −63
Original line number Diff line number Diff line
@@ -285,69 +285,6 @@ int atari_tt_hwclk( int op, struct rtc_time *t ) 
    return( 0 );

}





int atari_mste_set_clock_mmss (unsigned long nowtime)

{

    short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;

    struct MSTE_RTC val;

    unsigned char rtc_minutes;



    mste_read(&val);

    rtc_minutes= val.min_ones + val.min_tens * 10;

    if ((rtc_minutes < real_minutes

         ? real_minutes - rtc_minutes

         : rtc_minutes - real_minutes) < 30)

    {

        val.sec_ones = real_seconds % 10;

        val.sec_tens = real_seconds / 10;

        val.min_ones = real_minutes % 10;

        val.min_tens = real_minutes / 10;

        mste_write(&val);

    }

    else

        return -1;

    return 0;

}



int atari_tt_set_clock_mmss (unsigned long nowtime)

{

    int retval = 0;

    short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;

    unsigned char save_control, save_freq_select, rtc_minutes;



    save_control = RTC_READ (RTC_CONTROL); /* tell the clock it's being set */

    RTC_WRITE (RTC_CONTROL, save_control | RTC_SET);



    save_freq_select = RTC_READ (RTC_FREQ_SELECT); /* stop and reset prescaler */

    RTC_WRITE (RTC_FREQ_SELECT, save_freq_select | RTC_DIV_RESET2);



    rtc_minutes = RTC_READ (RTC_MINUTES);

    if (!(save_control & RTC_DM_BINARY))

	rtc_minutes = bcd2bin(rtc_minutes);



    /* Since we're only adjusting minutes and seconds, don't interfere

       with hour overflow.  This avoids messing with unknown time zones

       but requires your RTC not to be off by more than 30 minutes.  */

    if ((rtc_minutes < real_minutes

         ? real_minutes - rtc_minutes

         : rtc_minutes - real_minutes) < 30)

        {

            if (!(save_control & RTC_DM_BINARY))

                {

		    real_seconds = bin2bcd(real_seconds);

		    real_minutes = bin2bcd(real_minutes);

                }

            RTC_WRITE (RTC_SECONDS, real_seconds);

            RTC_WRITE (RTC_MINUTES, real_minutes);

        }

    else

        retval = -1;



    RTC_WRITE (RTC_FREQ_SELECT, save_freq_select);

    RTC_WRITE (RTC_CONTROL, save_control);

    return retval;

}



/*

 * Local variables:

 *  c-indent-level: 4

arch/m68k/bvme6000/config.c

+0 −45
Original line number Diff line number Diff line
@@ -41,7 +41,6 @@ static void bvme6000_get_model(char *model); 
extern void bvme6000_sched_init(irq_handler_t handler);

extern u32 bvme6000_gettimeoffset(void);

extern int bvme6000_hwclk (int, struct rtc_time *);

extern int bvme6000_set_clock_mmss (unsigned long);

extern void bvme6000_reset (void);

void bvme6000_set_vectors (void);
@@ -113,7 +112,6 @@ void __init config_bvme6000(void) 
    mach_init_IRQ        = bvme6000_init_IRQ;

    arch_gettimeoffset   = bvme6000_gettimeoffset;

    mach_hwclk           = bvme6000_hwclk;

    mach_set_clock_mmss	 = bvme6000_set_clock_mmss;

    mach_reset		 = bvme6000_reset;

    mach_get_model       = bvme6000_get_model;
@@ -305,46 +303,3 @@ int bvme6000_hwclk(int op, struct rtc_time *t) 


	return 0;

}
 


/*

 * Set the minutes and seconds from seconds value 'nowtime'.  Fail if

 * clock is out by > 30 minutes.  Logic lifted from atari code.

 * Algorithm is to wait for the 10ms register to change, and then to

 * wait a short while, and then set it.

 */



int bvme6000_set_clock_mmss (unsigned long nowtime)

{

	int retval = 0;

	short real_seconds = nowtime % 60, real_minutes = (nowtime / 60) % 60;

	unsigned char rtc_minutes, rtc_tenms;

	volatile RtcPtr_t rtc = (RtcPtr_t)BVME_RTC_BASE;

	unsigned char msr = rtc->msr & 0xc0;

	unsigned long flags;

	volatile int i;



	rtc->msr = 0;		/* Ensure clock accessible */

	rtc_minutes = bcd2bin (rtc->bcd_min);



	if ((rtc_minutes < real_minutes

		? real_minutes - rtc_minutes

			: rtc_minutes - real_minutes) < 30)

	{

		local_irq_save(flags);

		rtc_tenms = rtc->bcd_tenms;

		while (rtc_tenms == rtc->bcd_tenms)

			;

		for (i = 0; i < 1000; i++)

			;

		rtc->bcd_min = bin2bcd(real_minutes);

		rtc->bcd_sec = bin2bcd(real_seconds);

		local_irq_restore(flags);

	}

	else

		retval = -1;



	rtc->msr = msr;



	return retval;

}

arch/m68k/include/asm/machdep.h

+0 −1
Original line number Diff line number Diff line
@@ -22,7 +22,6 @@ extern int (*mach_hwclk)(int, struct rtc_time*); 
extern unsigned int (*mach_get_ss)(void);

extern int (*mach_get_rtc_pll)(struct rtc_pll_info *);

extern int (*mach_set_rtc_pll)(struct rtc_pll_info *);

extern int (*mach_set_clock_mmss)(unsigned long);

extern void (*mach_reset)( void );

extern void (*mach_halt)( void );

extern void (*mach_power_off)( void );

CRA Git | Maintained and supported by SUSTech CRA and CCSE