Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 0e027376 authored by Magnus Damm's avatar Magnus Damm Committed by Paul Mundt
Browse files

sh: use ioread32/iowrite32 and mapped_reg for div4 



Convert the CPG DIV4 helper code to use the new mapped_reg
together with ioread32() and iowrite32().

Signed-off-by: default avatarMagnus Damm <damm@opensource.se>
Signed-off-by: default avatarPaul Mundt <lethal@linux-sh.org>
parent b3ab82b3

drivers/sh/clk/cpg.c

+8 −8
Original line number Diff line number Diff line
@@ -252,7 +252,7 @@ static unsigned long sh_clk_div4_recalc(struct clk *clk) 
	clk_rate_table_build(clk, clk->freq_table, table->nr_divisors,

			     table, &clk->arch_flags);



	idx = (__raw_readl(clk->enable_reg) >> clk->enable_bit) & 0x000f;

	idx = (ioread32(clk->mapped_reg) >> clk->enable_bit) & 0x000f;



	return clk->freq_table[idx].frequency;

}
@@ -270,15 +270,15 @@ static int sh_clk_div4_set_parent(struct clk *clk, struct clk *parent) 
	 */



	if (parent->flags & CLK_ENABLE_ON_INIT)

		value = __raw_readl(clk->enable_reg) & ~(1 << 7);

		value = ioread32(clk->mapped_reg) & ~(1 << 7);

	else

		value = __raw_readl(clk->enable_reg) | (1 << 7);

		value = ioread32(clk->mapped_reg) | (1 << 7);



	ret = clk_reparent(clk, parent);

	if (ret < 0)

		return ret;



	__raw_writel(value, clk->enable_reg);

	iowrite32(value, clk->mapped_reg);



	/* Rebiuld the frequency table */

	clk_rate_table_build(clk, clk->freq_table, table->nr_divisors,
@@ -295,10 +295,10 @@ static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate) 
	if (idx < 0)

		return idx;



	value = __raw_readl(clk->enable_reg);

	value = ioread32(clk->mapped_reg);

	value &= ~(0xf << clk->enable_bit);

	value |= (idx << clk->enable_bit);

	__raw_writel(value, clk->enable_reg);

	iowrite32(value, clk->mapped_reg);



	if (d4t->kick)

		d4t->kick(clk);
@@ -308,13 +308,13 @@ static int sh_clk_div4_set_rate(struct clk *clk, unsigned long rate) 


static int sh_clk_div4_enable(struct clk *clk)

{

	__raw_writel(__raw_readl(clk->enable_reg) & ~(1 << 8), clk->enable_reg);

	iowrite32(ioread32(clk->mapped_reg) & ~(1 << 8), clk->mapped_reg);

	return 0;

}



static void sh_clk_div4_disable(struct clk *clk)

{

	__raw_writel(__raw_readl(clk->enable_reg) | (1 << 8), clk->enable_reg);

	iowrite32(ioread32(clk->mapped_reg) | (1 << 8), clk->mapped_reg);

}



static struct clk_ops sh_clk_div4_clk_ops = {