From: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Date: Wed, 31 Oct 2012 03:07:59 +0000 (-0700)
Subject: ARM: shmobile: sh7372: use sh_clk_fsidiv_register() for FSI-DIV clocks
X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=dc3cad8222ca0fc67d3f7e867e8e39a64c28bedf;p=openwrt%2Fstaging%2Fblogic.git

ARM: shmobile: sh7372: use sh_clk_fsidiv_register() for FSI-DIV clocks

Now, sh7372 can use sh_clk_fsidiv_register() for FSI-DIV clocks.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
Signed-off-by: Simon Horman <horms@verge.net.au>
---

diff --git a/arch/arm/mach-shmobile/clock-sh7372.c b/arch/arm/mach-shmobile/clock-sh7372.c
index 18dcff7551c0..bee2d056f63c 100644
--- a/arch/arm/mach-shmobile/clock-sh7372.c
+++ b/arch/arm/mach-shmobile/clock-sh7372.c
@@ -420,87 +420,11 @@ static struct clk div6_reparent_clks[DIV6_REPARENT_NR] = {
 };
 
 /* FSI DIV */
-static unsigned long fsidiv_recalc(struct clk *clk)
-{
-	unsigned long value;
-
-	value = __raw_readl(clk->mapping->base);
-
-	value >>= 16;
-	if (value < 2)
-		return 0;
-
-	return clk->parent->rate / value;
-}
-
-static long fsidiv_round_rate(struct clk *clk, unsigned long rate)
-{
-	return clk_rate_div_range_round(clk, 2, 0xffff, rate);
-}
-
-static void fsidiv_disable(struct clk *clk)
-{
-	__raw_writel(0, clk->mapping->base);
-}
-
-static int fsidiv_enable(struct clk *clk)
-{
-	unsigned long value;
-
-	value  = __raw_readl(clk->mapping->base) >> 16;
-	if (value < 2)
-		return -EIO;
-
-	__raw_writel((value << 16) | 0x3, clk->mapping->base);
-
-	return 0;
-}
+enum { FSIDIV_A, FSIDIV_B, FSIDIV_REPARENT_NR };
 
-static int fsidiv_set_rate(struct clk *clk, unsigned long rate)
-{
-	int idx;
-
-	idx = (clk->parent->rate / rate) & 0xffff;
-	if (idx < 2)
-		return -EINVAL;
-
-	__raw_writel(idx << 16, clk->mapping->base);
-	return 0;
-}
-
-static struct sh_clk_ops fsidiv_clk_ops = {
-	.recalc		= fsidiv_recalc,
-	.round_rate	= fsidiv_round_rate,
-	.set_rate	= fsidiv_set_rate,
-	.enable		= fsidiv_enable,
-	.disable	= fsidiv_disable,
-};
-
-static struct clk_mapping fsidiva_clk_mapping = {
-	.phys	= FSIDIVA,
-	.len	= 8,
-};
-
-static struct clk fsidiva_clk = {
-	.ops		= &fsidiv_clk_ops,
-	.parent		= &div6_reparent_clks[DIV6_FSIA], /* late install */
-	.mapping	= &fsidiva_clk_mapping,
-};
-
-static struct clk_mapping fsidivb_clk_mapping = {
-	.phys	= FSIDIVB,
-	.len	= 8,
-};
-
-static struct clk fsidivb_clk = {
-	.ops		= &fsidiv_clk_ops,
-	.parent		= &div6_reparent_clks[DIV6_FSIB],  /* late install */
-	.mapping	= &fsidivb_clk_mapping,
-};
-
-static struct clk *late_main_clks[] = {
-	&fsidiva_clk,
-	&fsidivb_clk,
+static struct clk fsidivs[] = {
+	[FSIDIV_A] = SH_CLK_FSIDIV(FSIDIVA, &div6_reparent_clks[DIV6_FSIA]),
+	[FSIDIV_B] = SH_CLK_FSIDIV(FSIDIVB, &div6_reparent_clks[DIV6_FSIB]),
 };
 
 enum { MSTP001, MSTP000,
@@ -583,8 +507,8 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_CON_ID("pllc1_clk", &pllc1_clk),
 	CLKDEV_CON_ID("pllc1_div2_clk", &pllc1_div2_clk),
 	CLKDEV_CON_ID("pllc2_clk", &sh7372_pllc2_clk),
-	CLKDEV_CON_ID("fsidiva", &fsidiva_clk),
-	CLKDEV_CON_ID("fsidivb", &fsidivb_clk),
+	CLKDEV_CON_ID("fsidiva", &fsidivs[FSIDIV_A]),
+	CLKDEV_CON_ID("fsidivb", &fsidivs[FSIDIV_B]),
 
 	/* DIV4 clocks */
 	CLKDEV_CON_ID("i_clk", &div4_clks[DIV4_I]),
@@ -680,6 +604,8 @@ static struct clk_lookup lookups[] = {
 	CLKDEV_ICK_ID("icka", "sh_fsi2", &div6_reparent_clks[DIV6_FSIA]),
 	CLKDEV_ICK_ID("ickb", "sh_fsi2", &div6_reparent_clks[DIV6_FSIB]),
 	CLKDEV_ICK_ID("spu2", "sh_fsi2", &mstp_clks[MSTP223]),
+	CLKDEV_ICK_ID("diva", "sh_fsi2", &fsidivs[FSIDIV_A]),
+	CLKDEV_ICK_ID("divb", "sh_fsi2", &fsidivs[FSIDIV_B]),
 };
 
 void __init sh7372_clock_init(void)
@@ -708,8 +634,8 @@ void __init sh7372_clock_init(void)
 	if (!ret)
 		ret = sh_clk_mstp_register(mstp_clks, MSTP_NR);
 
-	for (k = 0; !ret && (k < ARRAY_SIZE(late_main_clks)); k++)
-		ret = clk_register(late_main_clks[k]);
+	if (!ret)
+		ret = sh_clk_fsidiv_register(fsidivs, FSIDIV_REPARENT_NR);
 
 	clkdev_add_table(lookups, ARRAY_SIZE(lookups));