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usb: ehci: Refactor the ehci_mxs_toggle_clock function to be reused with DM

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This function is going to be reused with the CONFIG_DM_USB enabled in
the imx28 mxs USB ehci driver.

No functional changes introduced.

Signed-off-by: Lukasz Majewski <lukma@denx.de>
This commit is contained in:
Lukasz Majewski 2021-12-22 10:55:07 +01:00 committed by Marek Vasut
parent f82feb7f27
commit fc313d345a
1 changed files with 21 additions and 21 deletions
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42
drivers/usb/host/ehci-mxs.c
View file

@ -29,6 +29,27 @@ struct ehci_mxs_port {
uint32_t gate_bits;
};
static int ehci_mxs_toggle_clock(const struct ehci_mxs_port *port, int enable)
{
struct mxs_register_32 *digctl_ctrl =
(struct mxs_register_32 *)HW_DIGCTL_CTRL;
int pll_offset, dig_offset;
if (enable) {
pll_offset = offsetof(struct mxs_register_32, reg_set);
dig_offset = offsetof(struct mxs_register_32, reg_clr);
writel(port->gate_bits, (u32)&digctl_ctrl->reg + dig_offset);
writel(port->pll_en_bits, (u32)port->pll + pll_offset);
} else {
pll_offset = offsetof(struct mxs_register_32, reg_clr);
dig_offset = offsetof(struct mxs_register_32, reg_set);
writel(port->pll_dis_bits, (u32)port->pll + pll_offset);
writel(port->gate_bits, (u32)&digctl_ctrl->reg + dig_offset);
}
return 0;
}
static const struct ehci_mxs_port mxs_port[] = {
#ifdef CONFIG_EHCI_MXS_PORT0
{
@ -56,27 +77,6 @@ static const struct ehci_mxs_port mxs_port[] = {
#endif
};
static int ehci_mxs_toggle_clock(const struct ehci_mxs_port *port, int enable)
{
struct mxs_register_32 *digctl_ctrl =
(struct mxs_register_32 *)HW_DIGCTL_CTRL;
int pll_offset, dig_offset;
if (enable) {
pll_offset = offsetof(struct mxs_register_32, reg_set);
dig_offset = offsetof(struct mxs_register_32, reg_clr);
writel(port->gate_bits, (u32)&digctl_ctrl->reg + dig_offset);
writel(port->pll_en_bits, (u32)port->pll + pll_offset);
} else {
pll_offset = offsetof(struct mxs_register_32, reg_clr);
dig_offset = offsetof(struct mxs_register_32, reg_set);
writel(port->pll_dis_bits, (u32)port->pll + pll_offset);
writel(port->gate_bits, (u32)&digctl_ctrl->reg + dig_offset);
}
return 0;
}
int __weak board_ehci_hcd_init(int port)
{
return 0;