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authorMichal Simek <michal.simek@xilinx.com>2014-02-20 12:55:46 +0400
committerMike Turquette <mturquette@linaro.org>2014-02-26 02:08:48 +0400
commit2c97ec58420d852f3f0ede905b92fbab1df5961c (patch)
tree453bf19321ebbb5e27600a75d7add473c1f0116d /drivers/clk/zynq
parent95aa4f9b5fe577de902aa780e91140c6e89c73a2 (diff)
downloadlinux-2c97ec58420d852f3f0ede905b92fbab1df5961c.tar.xz
clk: zynq: Use clk_readl/clk_writel helper function
Do not use readl/writel directly because the whole clk subsystem is using clk_readl/clk_writel functions. Signed-off-by: Michal Simek <michal.simek@xilinx.com> Acked-by: Soren Brinkmann <soren.brinkmann@xilinx.com> Signed-off-by: Mike Turquette <mturquette@linaro.org>
Diffstat (limited to 'drivers/clk/zynq')
-rw-r--r--drivers/clk/zynq/clkc.c4
-rw-r--r--drivers/clk/zynq/pll.c18
2 files changed, 11 insertions, 11 deletions
diff --git a/drivers/clk/zynq/clkc.c b/drivers/clk/zynq/clkc.c
index 09dd0173ea0a..e726c1b11218 100644
--- a/drivers/clk/zynq/clkc.c
+++ b/drivers/clk/zynq/clkc.c
@@ -148,7 +148,7 @@ static void __init zynq_clk_register_fclk(enum zynq_clk fclk,
clks[fclk] = clk_register_gate(NULL, clk_name,
div1_name, CLK_SET_RATE_PARENT, fclk_gate_reg,
0, CLK_GATE_SET_TO_DISABLE, fclk_gate_lock);
- enable_reg = readl(fclk_gate_reg) & 1;
+ enable_reg = clk_readl(fclk_gate_reg) & 1;
if (enable && !enable_reg) {
if (clk_prepare_enable(clks[fclk]))
pr_warn("%s: FCLK%u enable failed\n", __func__,
@@ -277,7 +277,7 @@ static void __init zynq_clk_setup(struct device_node *np)
SLCR_IOPLL_CTRL, 4, 1, 0, &iopll_lock);
/* CPU clocks */
- tmp = readl(SLCR_621_TRUE) & 1;
+ tmp = clk_readl(SLCR_621_TRUE) & 1;
clk = clk_register_mux(NULL, "cpu_mux", cpu_parents, 4,
CLK_SET_RATE_NO_REPARENT, SLCR_ARM_CLK_CTRL, 4, 2, 0,
&armclk_lock);
diff --git a/drivers/clk/zynq/pll.c b/drivers/clk/zynq/pll.c
index 3226f54fa595..cec97596fe65 100644
--- a/drivers/clk/zynq/pll.c
+++ b/drivers/clk/zynq/pll.c
@@ -90,7 +90,7 @@ static unsigned long zynq_pll_recalc_rate(struct clk_hw *hw,
* makes probably sense to redundantly save fbdiv in the struct
* zynq_pll to save the IO access.
*/
- fbdiv = (readl(clk->pll_ctrl) & PLLCTRL_FBDIV_MASK) >>
+ fbdiv = (clk_readl(clk->pll_ctrl) & PLLCTRL_FBDIV_MASK) >>
PLLCTRL_FBDIV_SHIFT;
return parent_rate * fbdiv;
@@ -112,7 +112,7 @@ static int zynq_pll_is_enabled(struct clk_hw *hw)
spin_lock_irqsave(clk->lock, flags);
- reg = readl(clk->pll_ctrl);
+ reg = clk_readl(clk->pll_ctrl);
spin_unlock_irqrestore(clk->lock, flags);
@@ -138,10 +138,10 @@ static int zynq_pll_enable(struct clk_hw *hw)
/* Power up PLL and wait for lock */
spin_lock_irqsave(clk->lock, flags);
- reg = readl(clk->pll_ctrl);
+ reg = clk_readl(clk->pll_ctrl);
reg &= ~(PLLCTRL_RESET_MASK | PLLCTRL_PWRDWN_MASK);
- writel(reg, clk->pll_ctrl);
- while (!(readl(clk->pll_status) & (1 << clk->lockbit)))
+ clk_writel(reg, clk->pll_ctrl);
+ while (!(clk_readl(clk->pll_status) & (1 << clk->lockbit)))
;
spin_unlock_irqrestore(clk->lock, flags);
@@ -168,9 +168,9 @@ static void zynq_pll_disable(struct clk_hw *hw)
/* shut down PLL */
spin_lock_irqsave(clk->lock, flags);
- reg = readl(clk->pll_ctrl);
+ reg = clk_readl(clk->pll_ctrl);
reg |= PLLCTRL_RESET_MASK | PLLCTRL_PWRDWN_MASK;
- writel(reg, clk->pll_ctrl);
+ clk_writel(reg, clk->pll_ctrl);
spin_unlock_irqrestore(clk->lock, flags);
}
@@ -225,9 +225,9 @@ struct clk *clk_register_zynq_pll(const char *name, const char *parent,
spin_lock_irqsave(pll->lock, flags);
- reg = readl(pll->pll_ctrl);
+ reg = clk_readl(pll->pll_ctrl);
reg &= ~PLLCTRL_BPQUAL_MASK;
- writel(reg, pll->pll_ctrl);
+ clk_writel(reg, pll->pll_ctrl);
spin_unlock_irqrestore(pll->lock, flags);