Now clock and reset drivers are available for respective SoC's so use clk and reset ops on musb driver.
Cc: Marek Vasut marex@denx.de Signed-off-by: Jagan Teki jagan@amarulasolutions.com --- drivers/usb/musb-new/sunxi.c | 82 +++++++++++++++++++++++------------- 1 file changed, 53 insertions(+), 29 deletions(-)
diff --git a/drivers/usb/musb-new/sunxi.c b/drivers/usb/musb-new/sunxi.c index 9f71b84fd1..440be83f4e 100644 --- a/drivers/usb/musb-new/sunxi.c +++ b/drivers/usb/musb-new/sunxi.c @@ -16,9 +16,11 @@ * This file is part of the Inventra Controller Driver for Linux. */ #include <common.h> +#include <clk.h> #include <dm.h> #include <generic-phy.h> #include <phy-sun4i-usb.h> +#include <reset.h> #include <asm/arch/cpu.h> #include <asm/arch/clock.h> #include <asm/arch/gpio.h> @@ -78,16 +80,15 @@
struct sunxi_musb_config { struct musb_hdrc_config *config; - u8 rst_bit; - u8 clkgate_bit; };
struct sunxi_glue { struct musb_host_data mdata; - struct sunxi_ccm_reg *ccm; struct sunxi_musb_config *cfg; struct device dev; struct phy phy; + struct clk clocks; + struct reset_ctl resets; }; #define to_sunxi_glue(d) container_of(d, struct sunxi_glue, dev)
@@ -291,6 +292,18 @@ static int sunxi_musb_init(struct musb *musb)
pr_debug("%s():\n", __func__);
+ ret = clk_enable(&glue->clocks); + if (ret) { + dev_err(dev, "failed to enable clock\n"); + return ret; + } + + ret = reset_deassert(&glue->resets); + if (ret) { + dev_err(dev, "failed to deassert reset\n"); + return ret; + } + ret = generic_phy_init(&glue->phy); if (ret) { pr_err("failed to init USB PHY\n"); @@ -299,17 +312,6 @@ static int sunxi_musb_init(struct musb *musb)
musb->isr = sunxi_musb_interrupt;
- setbits_le32(&glue->ccm->ahb_gate0, BIT(AHB_GATE_OFFSET_USB0)); - if (glue->cfg->clkgate_bit) - setbits_le32(&glue->ccm->ahb_gate0, - BIT(glue->cfg->clkgate_bit)); -#ifdef CONFIG_SUNXI_GEN_SUN6I - setbits_le32(&glue->ccm->ahb_reset0_cfg, BIT(AHB_GATE_OFFSET_USB0)); - if (glue->cfg->rst_bit) - setbits_le32(&glue->ccm->ahb_reset0_cfg, - BIT(glue->cfg->rst_bit)); -#endif - USBC_ConfigFIFO_Base(); USBC_EnableDpDmPullUp(musb->mregs); USBC_EnableIdPullUp(musb->mregs); @@ -339,16 +341,17 @@ static int sunxi_musb_exit(struct musb *musb) } }
-#ifdef CONFIG_SUNXI_GEN_SUN6I - clrbits_le32(&glue->ccm->ahb_reset0_cfg, BIT(AHB_GATE_OFFSET_USB0)); - if (glue->cfg->rst_bit) - clrbits_le32(&glue->ccm->ahb_reset0_cfg, - BIT(glue->cfg->rst_bit)); -#endif - clrbits_le32(&glue->ccm->ahb_gate0, BIT(AHB_GATE_OFFSET_USB0)); - if (glue->cfg->clkgate_bit) - clrbits_le32(&glue->ccm->ahb_gate0, - BIT(glue->cfg->clkgate_bit)); + ret = reset_assert(&glue->resets); + if (ret) { + dev_err(dev, "failed to deassert reset\n"); + return ret; + } + + ret = clk_disable(&glue->clocks); + if (ret) { + dev_err(dev, "failed to enable clock\n"); + return ret; + }
return 0; } @@ -433,6 +436,7 @@ static int musb_usb_probe(struct udevice *dev) struct usb_bus_priv *priv = dev_get_uclass_priv(dev); struct musb_hdrc_platform_data pdata; void *base = dev_read_addr_ptr(dev); + int clock_nb, reset_nb; int ret;
if (!base) @@ -442,9 +446,31 @@ static int musb_usb_probe(struct udevice *dev) if (!glue->cfg) return -EINVAL;
- glue->ccm = (struct sunxi_ccm_reg *)SUNXI_CCM_BASE; - if (IS_ERR(glue->ccm)) - return PTR_ERR(glue->ccm); + clock_nb = ofnode_count_phandle_with_args(dev_ofnode(dev), "clocks", + "#clock-cells"); + if (clock_nb < 0) { + dev_err(dev, "failed to get clock phandle(%d)\n", clock_nb); + return clock_nb; + } + + ret = clk_get_by_index(dev, 0, &glue->clocks); + if (ret) { + dev_err(dev, "failed to get clock 0\n"); + clk_free(&glue->clocks); + } + + reset_nb = ofnode_count_phandle_with_args(dev_ofnode(dev), "resets", + "#reset-cells"); + if (reset_nb < 0) { + dev_err(dev, "failed to get reset phandle(%d)\n", clock_nb); + return reset_nb; + } + + ret = reset_get_by_index(dev, 0, &glue->resets); + if (ret) { + dev_err(dev, "failed to get reset 0\n"); + reset_free(&glue->resets); + }
ret = generic_phy_get_by_name(dev, "usb", &glue->phy); if (ret) { @@ -499,8 +525,6 @@ static const struct sunxi_musb_config sun4i_a10_cfg = {
static const struct sunxi_musb_config sun8i_h3_cfg = { .config = &musb_config_h3, - .rst_bit = 23, - .clkgate_bit = 23, };
static const struct udevice_id sunxi_musb_ids[] = {