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clk: ingenic: jz4770: Change OTG from custom to standard gated clock 

We now have the means to express the specificities of the OTG clock with
the common CGU code.

Signed-off-by: Paul Cercueil <paul@crapouillou.net>
Signed-off-by: Stephen Boyd <sboyd@kernel.org>
This commit is contained in:
Paul Cercueil 2018-05-20 16:31:14 +00:00 committed by Stephen Boyd
parent 261a831f04
commit 11b689a3e7
1 changed files with 5 additions and 37 deletions
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42
drivers/clk/ingenic/jz4770-cgu.c
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@ -42,7 +42,6 @@
/* bits within the OPCR register */
#define OPCR_SPENDH BIT(5) /* UHC PHY suspend */
#define OPCR_SPENDN BIT(7) /* OTG PHY suspend */
/* bits within the USBPCR1 register */
#define USBPCR1_UHC_POWER BIT(5) /* UHC PHY power down */
@ -83,37 +82,6 @@ static const struct clk_ops jz4770_uhc_phy_ops = {
.is_enabled = jz4770_uhc_phy_is_enabled,
};
static int jz4770_otg_phy_enable(struct clk_hw *hw)
{
void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
writel(readl(reg_opcr) | OPCR_SPENDN, reg_opcr);
/* Wait for the clock to be stable */
udelay(50);
return 0;
}
static void jz4770_otg_phy_disable(struct clk_hw *hw)
{
void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
writel(readl(reg_opcr) & ~OPCR_SPENDN, reg_opcr);
}
static int jz4770_otg_phy_is_enabled(struct clk_hw *hw)
{
void __iomem *reg_opcr = cgu->base + CGU_REG_OPCR;
return !!(readl(reg_opcr) & OPCR_SPENDN);
}
static const struct clk_ops jz4770_otg_phy_ops = {
.enable = jz4770_otg_phy_enable,
.disable = jz4770_otg_phy_disable,
.is_enabled = jz4770_otg_phy_is_enabled,
};
static const s8 pll_od_encoding[8] = {
0x0, 0x1, -1, 0x2, -1, -1, -1, 0x3,
};
@ -410,6 +378,11 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = {
.parents = { JZ4770_CLK_MMC2_MUX, },
.gate = { CGU_REG_CLKGR0, 12 },
},
[JZ4770_CLK_OTG_PHY] = {
"usb_phy", CGU_CLK_GATE,
.parents = { JZ4770_CLK_OTG },
.gate = { CGU_REG_OPCR, 7, true, 50 },
},
/* Custom clocks */
@ -418,11 +391,6 @@ static const struct ingenic_cgu_clk_info jz4770_cgu_clocks[] = {
.parents = { JZ4770_CLK_UHC, -1, -1, -1 },
.custom = { &jz4770_uhc_phy_ops },
},
[JZ4770_CLK_OTG_PHY] = {
"usb_phy", CGU_CLK_CUSTOM,
.parents = { JZ4770_CLK_OTG, -1, -1, -1 },
.custom = { &jz4770_otg_phy_ops },
},
[JZ4770_CLK_EXT512] = {
"ext/512", CGU_CLK_FIXDIV,