clk: renesas: rcar-gen2: Always use readl()/writel()
authorGeert Uytterhoeven <geert+renesas@glider.be>
Thu, 15 Mar 2018 09:44:09 +0000 (10:44 +0100)
committerGeert Uytterhoeven <geert+renesas@glider.be>
Wed, 21 Mar 2018 16:34:54 +0000 (17:34 +0100)
On arm32, there is no reason to use the (soon deprecated)
clk_readl()/clk_writel().  Hence use the generic readl()/writel()
instead.

Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: Simon Horman <horms+renesas@verge.net.au>
drivers/clk/renesas/clk-rcar-gen2.c

index d14cbe1..ee32a02 100644 (file)
@@ -62,8 +62,7 @@ static unsigned long cpg_z_clk_recalc_rate(struct clk_hw *hw,
        unsigned int mult;
        unsigned int val;
 
-       val = (clk_readl(zclk->reg) & CPG_FRQCRC_ZFC_MASK)
-           >> CPG_FRQCRC_ZFC_SHIFT;
+       val = (readl(zclk->reg) & CPG_FRQCRC_ZFC_MASK) >> CPG_FRQCRC_ZFC_SHIFT;
        mult = 32 - val;
 
        return div_u64((u64)parent_rate * mult, 32);
@@ -95,21 +94,21 @@ static int cpg_z_clk_set_rate(struct clk_hw *hw, unsigned long rate,
        mult = div_u64((u64)rate * 32, parent_rate);
        mult = clamp(mult, 1U, 32U);
 
-       if (clk_readl(zclk->kick_reg) & CPG_FRQCRB_KICK)
+       if (readl(zclk->kick_reg) & CPG_FRQCRB_KICK)
                return -EBUSY;
 
-       val = clk_readl(zclk->reg);
+       val = readl(zclk->reg);
        val &= ~CPG_FRQCRC_ZFC_MASK;
        val |= (32 - mult) << CPG_FRQCRC_ZFC_SHIFT;
-       clk_writel(val, zclk->reg);
+       writel(val, zclk->reg);
 
        /*
         * Set KICK bit in FRQCRB to update hardware setting and wait for
         * clock change completion.
         */
-       kick = clk_readl(zclk->kick_reg);
+       kick = readl(zclk->kick_reg);
        kick |= CPG_FRQCRB_KICK;
-       clk_writel(kick, zclk->kick_reg);
+       writel(kick, zclk->kick_reg);
 
        /*
         * Note: There is no HW information about the worst case latency.
@@ -121,7 +120,7 @@ static int cpg_z_clk_set_rate(struct clk_hw *hw, unsigned long rate,
         * "super" safe value.
         */
        for (i = 1000; i; i--) {
-               if (!(clk_readl(zclk->kick_reg) & CPG_FRQCRB_KICK))
+               if (!(readl(zclk->kick_reg) & CPG_FRQCRB_KICK))
                        return 0;
 
                cpu_relax();
@@ -332,7 +331,7 @@ rcar_gen2_cpg_register_clock(struct device_node *np, struct rcar_gen2_cpg *cpg,
                        mult = config->pll0_mult;
                        div = 3;
                } else {
-                       u32 value = clk_readl(cpg->reg + CPG_PLL0CR);
+                       u32 value = readl(cpg->reg + CPG_PLL0CR);
                        mult = ((value >> 24) & ((1 << 7) - 1)) + 1;
                }
                parent_name = "main";