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clk: renesas: rcar-usb2-clock-sel: Add multiple clocks management 

This hardware needs to enable clocks of both host and peripheral.
So, this patch adds multiple clocks management.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1583304137-28482-4-git-send-email-yoshihiro.shimoda.uh@renesas.com
Signed-off-by: Geert Uytterhoeven <geert+renesas@glider.be>
This commit is contained in:
Yoshihiro Shimoda 2020-03-04 15:42:16 +09:00 committed by Geert Uytterhoeven
parent f70ae8ecf9
commit 80cf67dd01
1 changed files with 25 additions and 2 deletions
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27
drivers/clk/renesas/rcar-usb2-clock-sel.c
View File

@ -26,9 +26,15 @@
#define CLKSET0_PRIVATE BIT(0)
#define CLKSET0_EXTAL_ONLY (CLKSET0_INTCLK_EN | CLKSET0_PRIVATE)
static const struct clk_bulk_data rcar_usb2_clocks[] = {
{ .id = "ehci_ohci", },
{ .id = "hs-usb-if", },
};
struct usb2_clock_sel_priv {
void __iomem *base;
struct clk_hw hw;
struct clk_bulk_data clks[ARRAY_SIZE(rcar_usb2_clocks)];
bool extal;
bool xtal;
};
@ -53,14 +59,25 @@ static void usb2_clock_sel_disable_extal_only(struct usb2_clock_sel_priv *priv)
static int usb2_clock_sel_enable(struct clk_hw *hw)
{
usb2_clock_sel_enable_extal_only(to_priv(hw));
struct usb2_clock_sel_priv *priv = to_priv(hw);
int ret;
ret = clk_bulk_prepare_enable(ARRAY_SIZE(priv->clks), priv->clks);
if (ret)
return ret;
usb2_clock_sel_enable_extal_only(priv);
return 0;
}
static void usb2_clock_sel_disable(struct clk_hw *hw)
{
usb2_clock_sel_disable_extal_only(to_priv(hw));
struct usb2_clock_sel_priv *priv = to_priv(hw);
usb2_clock_sel_disable_extal_only(priv);
clk_bulk_disable_unprepare(ARRAY_SIZE(priv->clks), priv->clks);
}
/*
@ -119,6 +136,7 @@ static int rcar_usb2_clock_sel_probe(struct platform_device *pdev)
struct usb2_clock_sel_priv *priv;
struct clk *clk;
struct clk_init_data init;
int ret;
priv = devm_kzalloc(dev, sizeof(*priv), GFP_KERNEL);
if (!priv)
@ -128,6 +146,11 @@ static int rcar_usb2_clock_sel_probe(struct platform_device *pdev)
if (IS_ERR(priv->base))
return PTR_ERR(priv->base);
memcpy(priv->clks, rcar_usb2_clocks, sizeof(priv->clks));
ret = devm_clk_bulk_get(dev, ARRAY_SIZE(priv->clks), priv->clks);
if (ret < 0)
return ret;
pm_runtime_enable(dev);
pm_runtime_get_sync(dev);