[U-Boot] [PATCH v2] usb: dwc3: convert to livetree
Marek Vasut
marex at denx.de
Thu Sep 6 10:57:51 UTC 2018
On 09/06/2018 12:39 PM, Siva Durga Prasad Paladugu wrote:
> From: Vipul Kumar <vipul.kumar at xilinx.com>
>
> Update the DWC3 USB driver to support a live tree.
>
> Signed-off-by: Siva Durga Prasad Paladugu <siva.durga.paladugu at xilinx.com>
> Signed-off-by: Vipul Kumar <vipul.kumar at xilinx.com>
> Tested-by: Michal Simek <michal.simek at xilinx.com>
> ---
> Changes in v2:
> - Fixed travis build issues with some platforms.
Cool, what exactly changed ?
> ---
> drivers/usb/common/common.c | 11 +++++------
> drivers/usb/dwc3/dwc3-generic.c | 17 +++++++----------
> drivers/usb/host/dwc3-sti-glue.c | 7 +++----
> drivers/usb/host/xhci-dwc3.c | 3 ++-
> drivers/usb/host/xhci-zynqmp.c | 3 +--
> drivers/usb/musb-new/ti-musb.c | 11 ++++-------
> include/linux/usb/otg.h | 6 ++++--
> 7 files changed, 26 insertions(+), 32 deletions(-)
>
> diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c
> index a55def5..3dea79b 100644
> --- a/drivers/usb/common/common.c
> +++ b/drivers/usb/common/common.c
> @@ -10,6 +10,7 @@
> #include <linux/libfdt.h>
> #include <linux/usb/otg.h>
> #include <linux/usb/ch9.h>
> +#include <dm.h>
>
> DECLARE_GLOBAL_DATA_PTR;
>
> @@ -20,13 +21,12 @@ static const char *const usb_dr_modes[] = {
> [USB_DR_MODE_OTG] = "otg",
> };
>
> -enum usb_dr_mode usb_get_dr_mode(int node)
> +enum usb_dr_mode usb_get_dr_mode(ofnode node)
> {
> - const void *fdt = gd->fdt_blob;
> const char *dr_mode;
> int i;
>
> - dr_mode = fdt_getprop(fdt, node, "dr_mode", NULL);
> + dr_mode = ofnode_get_property(node, "dr_mode", NULL);
> if (!dr_mode) {
> pr_err("usb dr_mode not found\n");
> return USB_DR_MODE_UNKNOWN;
> @@ -48,13 +48,12 @@ static const char *const speed_names[] = {
> [USB_SPEED_SUPER] = "super-speed",
> };
>
> -enum usb_device_speed usb_get_maximum_speed(int node)
> +enum usb_device_speed usb_get_maximum_speed(ofnode node)
> {
> - const void *fdt = gd->fdt_blob;
> const char *max_speed;
> int i;
>
> - max_speed = fdt_getprop(fdt, node, "maximum-speed", NULL);
> + max_speed = ofnode_get_property(node, "maximum-speed", NULL);
> if (!max_speed) {
> pr_err("usb maximum-speed not found\n");
> return USB_SPEED_UNKNOWN;
> diff --git a/drivers/usb/dwc3/dwc3-generic.c b/drivers/usb/dwc3/dwc3-generic.c
> index ca63eac..ef72c8c 100644
> --- a/drivers/usb/dwc3/dwc3-generic.c
> +++ b/drivers/usb/dwc3/dwc3-generic.c
> @@ -61,18 +61,17 @@ static int dwc3_generic_peripheral_remove(struct udevice *dev)
> static int dwc3_generic_peripheral_ofdata_to_platdata(struct udevice *dev)
> {
> struct dwc3 *priv = dev_get_priv(dev);
> - int node = dev_of_offset(dev);
>
> - priv->regs = (void *)devfdt_get_addr(dev);
> + priv->regs = (void *)dev_read_addr(dev);
> priv->regs += DWC3_GLOBALS_REGS_START;
>
> - priv->maximum_speed = usb_get_maximum_speed(node);
> + priv->maximum_speed = usb_get_maximum_speed(dev->node);
> if (priv->maximum_speed == USB_SPEED_UNKNOWN) {
> pr_err("Invalid usb maximum speed\n");
> return -ENODEV;
> }
>
> - priv->dr_mode = usb_get_dr_mode(node);
> + priv->dr_mode = usb_get_dr_mode(dev->node);
> if (priv->dr_mode == USB_DR_MODE_UNKNOWN) {
> pr_err("Invalid usb mode setup\n");
> return -ENODEV;
> @@ -100,13 +99,11 @@ U_BOOT_DRIVER(dwc3_generic_peripheral) = {
>
> static int dwc3_generic_bind(struct udevice *parent)
> {
> - const void *fdt = gd->fdt_blob;
> - int node;
> + ofnode node;
> int ret;
>
> - for (node = fdt_first_subnode(fdt, dev_of_offset(parent)); node > 0;
> - node = fdt_next_subnode(fdt, node)) {
> - const char *name = fdt_get_name(fdt, node, NULL);
> + dev_for_each_subnode(node, parent) {
> + const char *name = (char *)ofnode_get_name(node);
> enum usb_dr_mode dr_mode;
> struct udevice *dev;
> const char *driver;
> @@ -133,7 +130,7 @@ static int dwc3_generic_bind(struct udevice *parent)
> };
>
> ret = device_bind_driver_to_node(parent, driver, name,
> - offset_to_ofnode(node), &dev);
> + node, &dev);
> if (ret) {
> debug("%s: not able to bind usb device mode\n",
> __func__);
> diff --git a/drivers/usb/host/dwc3-sti-glue.c b/drivers/usb/host/dwc3-sti-glue.c
> index ad7cf6e..de423ee 100644
> --- a/drivers/usb/host/dwc3-sti-glue.c
> +++ b/drivers/usb/host/dwc3-sti-glue.c
> @@ -153,18 +153,17 @@ static int sti_dwc3_glue_ofdata_to_platdata(struct udevice *dev)
> static int sti_dwc3_glue_bind(struct udevice *dev)
> {
> struct sti_dwc3_glue_platdata *plat = dev_get_platdata(dev);
> - int dwc3_node;
> + ofnode dwc3_node;
>
> /* check if one subnode is present */
> - dwc3_node = fdt_first_subnode(gd->fdt_blob, dev_of_offset(dev));
> + dwc3_node = dev_read_first_subnode(dev);
> if (dwc3_node <= 0) {
> pr_err("Can't find subnode for %s\n", dev->name);
> return -ENODEV;
> }
>
> /* check if the subnode compatible string is the dwc3 one*/
> - if (fdt_node_check_compatible(gd->fdt_blob, dwc3_node,
> - "snps,dwc3") != 0) {
> + if (ofnode_device_is_compatible(dwc3_node, "snps,dwc3") != 0) {
> pr_err("Can't find dwc3 subnode for %s\n", dev->name);
> return -ENODEV;
> }
> diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c
> index 80754d7..cbab436 100644
> --- a/drivers/usb/host/xhci-dwc3.c
> +++ b/drivers/usb/host/xhci-dwc3.c
> @@ -202,6 +202,7 @@ static int xhci_dwc3_probe(struct udevice *dev)
> struct dwc3 *dwc3_reg;
> enum usb_dr_mode dr_mode;
> int ret;
> + ofnode node;
>
> hccr = (struct xhci_hccr *)((uintptr_t)dev_read_addr(dev));
> hcor = (struct xhci_hcor *)((uintptr_t)hccr +
> @@ -215,7 +216,7 @@ static int xhci_dwc3_probe(struct udevice *dev)
>
> dwc3_core_init(dwc3_reg);
>
> - dr_mode = usb_get_dr_mode(dev_of_offset(dev));
> + dr_mode = usb_get_dr_mode(node);
> if (dr_mode == USB_DR_MODE_UNKNOWN)
> /* by default set dual role mode to HOST */
> dr_mode = USB_DR_MODE_HOST;
> diff --git a/drivers/usb/host/xhci-zynqmp.c b/drivers/usb/host/xhci-zynqmp.c
> index e44e1ae..5a5b870 100644
> --- a/drivers/usb/host/xhci-zynqmp.c
> +++ b/drivers/usb/host/xhci-zynqmp.c
> @@ -121,10 +121,9 @@ static int xhci_usb_remove(struct udevice *dev)
> static int xhci_usb_ofdata_to_platdata(struct udevice *dev)
> {
> struct zynqmp_xhci_platdata *plat = dev_get_platdata(dev);
> - const void *blob = gd->fdt_blob;
>
> /* Get the base address for XHCI controller from the device node */
> - plat->hcd_base = fdtdec_get_addr(blob, dev_of_offset(dev), "reg");
> + plat->hcd_base = dev_read_addr(dev);
> if (plat->hcd_base == FDT_ADDR_T_NONE) {
> debug("Can't get the XHCI register base address\n");
> return -ENXIO;
> diff --git a/drivers/usb/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c
> index 9fbe2d6..bdb5985 100644
> --- a/drivers/usb/musb-new/ti-musb.c
> +++ b/drivers/usb/musb-new/ti-musb.c
> @@ -177,7 +177,6 @@ static int ti_musb_host_ofdata_to_platdata(struct udevice *dev)
> {
> struct ti_musb_platdata *platdata = dev_get_platdata(dev);
> const void *fdt = gd->fdt_blob;
> - int node = dev_of_offset(dev);
> int ret;
>
> ret = ti_musb_ofdata_to_platdata(dev);
> @@ -204,14 +203,12 @@ U_BOOT_DRIVER(ti_musb_host) = {
>
> static int ti_musb_wrapper_bind(struct udevice *parent)
> {
> - const void *fdt = gd->fdt_blob;
> - int node;
> + ofnode node;
> int ret;
>
> - for (node = fdt_first_subnode(fdt, dev_of_offset(parent)); node > 0;
> - node = fdt_next_subnode(fdt, node)) {
> + dev_for_each_subnode(node, parent) {
> struct udevice *dev;
> - const char *name = fdt_get_name(fdt, node, NULL);
> + const char *name = (char *)ofnode_get_name(node);
> enum usb_dr_mode dr_mode;
> struct driver *drv;
>
> @@ -226,7 +223,7 @@ static int ti_musb_wrapper_bind(struct udevice *parent)
> case USB_DR_MODE_HOST:
> /* Bind MUSB host */
> ret = device_bind_driver_to_node(parent, "ti-musb-host",
> - name, offset_to_ofnode(node), &dev);
> + name, node, &dev);
> if (ret) {
> pr_err("musb - not able to bind usb host node\n");
> return ret;
> diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h
> index d2604c5..baf4d91 100644
> --- a/include/linux/usb/otg.h
> +++ b/include/linux/usb/otg.h
> @@ -9,6 +9,8 @@
> #ifndef __LINUX_USB_OTG_H
> #define __LINUX_USB_OTG_H
>
> +#include <dm/ofnode.h>
> +
> enum usb_dr_mode {
> USB_DR_MODE_UNKNOWN,
> USB_DR_MODE_HOST,
> @@ -23,7 +25,7 @@ enum usb_dr_mode {
> * The function gets phy interface string from property 'dr_mode',
> * and returns the correspondig enum usb_dr_mode
> */
> -enum usb_dr_mode usb_get_dr_mode(int node);
> +enum usb_dr_mode usb_get_dr_mode(ofnode node);
>
> /**
> * usb_get_maximum_speed() - Get maximum speed for given device
> @@ -32,6 +34,6 @@ enum usb_dr_mode usb_get_dr_mode(int node);
> * The function gets phy interface string from property 'maximum-speed',
> * and returns the correspondig enum usb_device_speed
> */
> -enum usb_device_speed usb_get_maximum_speed(int node);
> +enum usb_device_speed usb_get_maximum_speed(ofnode node);
>
> #endif /* __LINUX_USB_OTG_H */
>
--
Best regards,
Marek Vasut
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