Add support for clock with driver model.
This patch don't added dependency because when CONFIG_CLK is not activated the clk function are stubbed.
Reviewed-by: Simon Goldschmidt simon.k.r.goldschmidt@gmail.com Signed-off-by: Patrick Delaunay patrick.delaunay@st.com ---
Changes in v6: None Changes in v5: None Changes in v4: None Changes in v3: None Changes in v2: None
drivers/usb/host/dwc2.c | 30 +++++++++++++++++++++++++++++- 1 file changed, 29 insertions(+), 1 deletion(-)
diff --git a/drivers/usb/host/dwc2.c b/drivers/usb/host/dwc2.c index a8e64825b5..b1b79d0a18 100644 --- a/drivers/usb/host/dwc2.c +++ b/drivers/usb/host/dwc2.c @@ -5,14 +5,15 @@ */
#include <common.h> +#include <clk.h> #include <cpu_func.h> #include <dm.h> #include <errno.h> #include <generic-phy.h> -#include <usb.h> #include <malloc.h> #include <memalign.h> #include <phys2bus.h> +#include <usb.h> #include <usbroothubdes.h> #include <wait_bit.h> #include <asm/io.h> @@ -39,6 +40,7 @@ struct dwc2_priv { struct udevice *vbus_supply; #endif struct phy phy; + struct clk_bulk clks; #else uint8_t *aligned_buffer; uint8_t *status_buffer; @@ -1377,6 +1379,26 @@ static int dwc2_shutdown_phy(struct udevice *dev) return 0; }
+static int dwc2_clk_init(struct udevice *dev) +{ + struct dwc2_priv *priv = dev_get_priv(dev); + int ret; + + ret = clk_get_bulk(dev, &priv->clks); + if (ret == -ENOSYS || ret == -ENOENT) + return 0; + if (ret) + return ret; + + ret = clk_enable_bulk(&priv->clks); + if (ret) { + clk_release_bulk(&priv->clks); + return ret; + } + + return 0; +} + static int dwc2_usb_probe(struct udevice *dev) { struct dwc2_priv *priv = dev_get_priv(dev); @@ -1385,6 +1407,10 @@ static int dwc2_usb_probe(struct udevice *dev)
bus_priv->desc_before_addr = true;
+ ret = dwc2_clk_init(dev); + if (ret) + return ret; + ret = dwc2_setup_phy(dev); if (ret) return ret; @@ -1410,6 +1436,8 @@ static int dwc2_usb_remove(struct udevice *dev) dwc2_uninit_common(priv->regs);
reset_release_bulk(&priv->resets); + clk_disable_bulk(&priv->clks); + clk_release_bulk(&priv->clks);
return 0; }