diff mbox series

[v2,3/3] clk: renesas: r7s9210: Move table update to separate function

Message ID 20180924164937.36536-4-chris.brandt@renesas.com (mailing list archive)
State Accepted
Delegated to: Geert Uytterhoeven
Headers show
Series clk: renesas: r7s9210: Add support for early clocks | expand

Commit Message

Chris Brandt Sept. 24, 2018, 4:49 p.m. UTC 
Same functionality, just easier to read.

Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
---
 drivers/clk/renesas/r7s9210-cpg-mssr.c | 94 ++++++++++++++++++----------------
 1 file changed, 49 insertions(+), 45 deletions(-)

Comments

Geert Uytterhoeven Sept. 26, 2018, 9:27 a.m. UTC | #1 
On Mon, Sep 24, 2018 at 6:50 PM Chris Brandt <chris.brandt@renesas.com> wrote:
> Same functionality, just easier to read.
>
> Signed-off-by: Chris Brandt <chris.brandt@renesas.com>
> ---
>  drivers/clk/renesas/r7s9210-cpg-mssr.c | 94 ++++++++++++++++++----------------
>  1 file changed, 49 insertions(+), 45 deletions(-)
>
> diff --git a/drivers/clk/renesas/r7s9210-cpg-mssr.c b/drivers/clk/renesas/r7s9210-cpg-mssr.c
> index 7ab9030ef8b9..f9c22b61883b 100644
> --- a/drivers/clk/renesas/r7s9210-cpg-mssr.c
> +++ b/drivers/clk/renesas/r7s9210-cpg-mssr.c
> @@ -97,6 +97,53 @@ static const struct mssr_mod_clk r7s9210_mod_clks[] __initconst = {
>
>  };
>
> +/* The clock dividers in the table vary based on DT and register settings */
> +static void r7s9210_update_clk_table(struct clk *extal_clk, void __iomem *base)

Can be __init.

Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
i.e. will queue in clk-renesas-for-v4.20, with the above fixed.

Gr{oetje,eeting}s,

                        Geert
Chris Brandt Sept. 26, 2018, 12:34 p.m. UTC | #2 
Hi Geert,

On Wednesday, September 26, 2018, Geert Uytterhoeven wrote:
> > +/* The clock dividers in the table vary based on DT and register
> settings */
> > +static void r7s9210_update_clk_table(struct clk *extal_clk, void
> __iomem *base)
> 
> Can be __init.
> 
> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
> i.e. will queue in clk-renesas-for-v4.20, with the above fixed.

OK, thank you!

Chris
diff mbox series

Patch

diff --git a/drivers/clk/renesas/r7s9210-cpg-mssr.c b/drivers/clk/renesas/r7s9210-cpg-mssr.c
index 7ab9030ef8b9..f9c22b61883b 100644
--- a/drivers/clk/renesas/r7s9210-cpg-mssr.c
+++ b/drivers/clk/renesas/r7s9210-cpg-mssr.c
@@ -97,6 +97,53 @@  static const struct mssr_mod_clk r7s9210_mod_clks[] __initconst = {
 
 };
 
+/* The clock dividers in the table vary based on DT and register settings */
+static void r7s9210_update_clk_table(struct clk *extal_clk, void __iomem *base)
+{
+	int i;
+	u16 frqcr;
+	u8 index;
+
+	/* If EXTAL is above 12MHz, then we know it is Mode 1 */
+	if (clk_get_rate(extal_clk) > 12000000)
+		cpg_mode = 1;
+
+	frqcr = clk_readl(base + CPG_FRQCR) & 0xFFF;
+	if (frqcr == 0x012)
+		index = 0;
+	else if (frqcr == 0x112)
+		index = 1;
+	else if (frqcr == 0x212)
+		index = 2;
+	else if (frqcr == 0x322)
+		index = 3;
+	else if (frqcr == 0x333)
+		index = 4;
+	else
+		BUG_ON(1);	/* Illegal FRQCR value */
+
+	for (i = 0; i < ARRAY_SIZE(r7s9210_core_clks); i++) {
+		switch (r7s9210_core_clks[i].id) {
+		case R7S9210_CLK_I:
+			r7s9210_core_clks[i].div = ratio_tab[index].i;
+			break;
+		case R7S9210_CLK_G:
+			r7s9210_core_clks[i].div = ratio_tab[index].g;
+			break;
+		case R7S9210_CLK_B:
+			r7s9210_core_clks[i].div = ratio_tab[index].b;
+			break;
+		case R7S9210_CLK_P1:
+		case R7S9210_CLK_P1C:
+			r7s9210_core_clks[i].div = ratio_tab[index].p1;
+			break;
+		case R7S9210_CLK_P0:
+			r7s9210_core_clks[i].div = 32;
+			break;
+		}
+	}
+}
+
 struct clk * __init rza2_cpg_clk_register(struct device *dev,
 	const struct cpg_core_clk *core, const struct cpg_mssr_info *info,
 	struct clk **clks, void __iomem *base,
@@ -105,9 +152,6 @@  struct clk * __init rza2_cpg_clk_register(struct device *dev,
 	struct clk *parent;
 	unsigned int mult = 1;
 	unsigned int div = 1;
-	u16 frqcr;
-	u8 index;
-	int i;
 
 	parent = clks[core->parent];
 	if (IS_ERR(parent))
@@ -128,48 +172,8 @@  struct clk * __init rza2_cpg_clk_register(struct device *dev,
 		return ERR_PTR(-EINVAL);
 	}
 
-	/* Adjust the dividers based on the current FRQCR setting */
-	if (core->id == CLK_MAIN) {
-
-		/* If EXTAL is above 12MHz, then we know it is Mode 1 */
-		if (clk_get_rate(parent) > 12000000)
-			cpg_mode = 1;
-
-		frqcr = clk_readl(base + CPG_FRQCR) & 0xFFF;
-		if (frqcr == 0x012)
-			index = 0;
-		else if (frqcr == 0x112)
-			index = 1;
-		else if (frqcr == 0x212)
-			index = 2;
-		else if (frqcr == 0x322)
-			index = 3;
-		else if (frqcr == 0x333)
-			index = 4;
-		else
-			BUG_ON(1);	/* Illegal FRQCR value */
-
-		for (i = 0; i < ARRAY_SIZE(r7s9210_core_clks); i++) {
-			switch (r7s9210_core_clks[i].id) {
-			case R7S9210_CLK_I:
-				r7s9210_core_clks[i].div = ratio_tab[index].i;
-				break;
-			case R7S9210_CLK_G:
-				r7s9210_core_clks[i].div = ratio_tab[index].g;
-				break;
-			case R7S9210_CLK_B:
-				r7s9210_core_clks[i].div = ratio_tab[index].b;
-				break;
-			case R7S9210_CLK_P1:
-			case R7S9210_CLK_P1C:
-				r7s9210_core_clks[i].div = ratio_tab[index].p1;
-				break;
-			case R7S9210_CLK_P0:
-				r7s9210_core_clks[i].div = 32;
-				break;
-			}
-		}
-	}
+	if (core->id == CLK_MAIN)
+		r7s9210_update_clk_table(parent, base);
 
 	return clk_register_fixed_factor(NULL, core->name,
 					 __clk_get_name(parent), 0, mult, div);