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Commit 1a73f047 authored by Ralf Baechle's avatar Ralf Baechle
Browse files

MIPS: Alchemy: Remove time_lock. 



The sole user is au1xxx_calc_clock() which is only used in early bootup
where the is no paralellism thus no race condition to protect against.

Signed-off-by: default avatarRalf Baechle <ralf@linux-mips.org>
Cc: Manuel Lauss <manuel.lauss@googlemail.com>
parent 32baba2f

arch/mips/alchemy/common/clocks.c

+0 −7
Original line number Diff line number Diff line
@@ -40,8 +40,6 @@ 
static unsigned int au1x00_clock; /*  Hz */

static unsigned long uart_baud_base;



static DEFINE_SPINLOCK(time_lock);



/*

 * Set the au1000_clock

 */
@@ -84,9 +82,6 @@ void set_au1x00_uart_baud_base(unsigned long new_baud_base) 
unsigned long au1xxx_calc_clock(void)

{

	unsigned long cpu_speed;

	unsigned long flags;



	spin_lock_irqsave(&time_lock, flags);



	/*

	 * On early Au1000, sys_cpupll was write-only. Since these
@@ -108,8 +103,6 @@ unsigned long au1xxx_calc_clock(void) 
	set_au1x00_uart_baud_base(cpu_speed / (2 * ((int)(au_readl(SYS_POWERCTRL)

							  & 0x03) + 2) * 16));



	spin_unlock_irqrestore(&time_lock, flags);



	set_au1x00_speed(cpu_speed);



	return cpu_speed;