From patchwork Wed Mar 4 00:59:50 2020 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Kever Yang X-Patchwork-Id: 243187 List-Id: U-Boot discussion From: kever.yang at rock-chips.com (Kever Yang) Date: Wed, 4 Mar 2020 08:59:50 +0800 Subject: [PATCH v3 3/3] usb: Migrate to support live DT for some driver In-Reply-To: <20200304005951.8225-1-kever.yang@rock-chips.com> References: <20200304005951.8225-1-kever.yang@rock-chips.com> Message-ID: <20200304005951.8225-4-kever.yang@rock-chips.com> Use ofnode_ instead of fdt_ APIs so that the drivers can support live DT. This patch updates usb_get_dr_mode() and usb_get_maximum_speed() to use ofnode as parameter instead of fdt offset. And all the drivers who use these APIs update to use live dt APIs at the same time. Signed-off-by: Kever Yang Reviewed-by: Simon Glass --- Changes in v3: - Squesh the 3rd~9th into one patch. drivers/usb/cdns3/core.c | 15 ++++++--------- drivers/usb/cdns3/gadget.c | 2 +- drivers/usb/common/common.c | 12 +++++------- drivers/usb/dwc3/dwc3-generic.c | 16 +++++++--------- drivers/usb/dwc3/dwc3-meson-g12a.c | 2 +- drivers/usb/gadget/dwc2_udc_otg.c | 5 ++--- drivers/usb/host/dwc3-sti-glue.c | 20 +++++++------------- drivers/usb/host/ehci-mx6.c | 2 +- drivers/usb/host/xhci-dwc3.c | 3 +-- drivers/usb/musb-new/ti-musb.c | 12 +++++------- include/linux/usb/otg.h | 10 ++++++---- 11 files changed, 42 insertions(+), 57 deletions(-) diff --git a/drivers/usb/cdns3/core.c b/drivers/usb/cdns3/core.c index f947e6983c..ce846488a8 100644 --- a/drivers/usb/cdns3/core.c +++ b/drivers/usb/cdns3/core.c @@ -108,7 +108,7 @@ static int cdns3_core_init_role(struct cdns3 *cdns) enum usb_dr_mode dr_mode; int ret = 0; - dr_mode = usb_get_dr_mode(dev_of_offset(dev)); + dr_mode = usb_get_dr_mode(dev->node); cdns->role = USB_ROLE_NONE; /* @@ -384,22 +384,20 @@ static const struct udevice_id cdns3_ids[] = { int cdns3_bind(struct udevice *parent) { - int from = dev_of_offset(parent); - const void *fdt = gd->fdt_blob; enum usb_dr_mode dr_mode; struct udevice *dev; const char *driver; const char *name; - int node; + ofnode node; int ret; - node = fdt_node_offset_by_compatible(fdt, from, "cdns,usb3"); - if (node < 0) { + node = ofnode_by_compatible(parent->node, "cdns,usb3"); + if (!ofnode_valid(node)) { ret = -ENODEV; goto fail; } - name = fdt_get_name(fdt, node, NULL); + name = ofnode_get_name(node); dr_mode = usb_get_dr_mode(node); switch (dr_mode) { @@ -422,8 +420,7 @@ int cdns3_bind(struct udevice *parent) goto fail; }; - ret = device_bind_driver_to_node(parent, driver, name, - offset_to_ofnode(node), &dev); + ret = device_bind_driver_to_node(parent, driver, name, node, &dev); if (ret) { printf("%s: not able to bind usb device mode\n", __func__); diff --git a/drivers/usb/cdns3/gadget.c b/drivers/usb/cdns3/gadget.c index 22e90a5717..8ebe64e8b3 100644 --- a/drivers/usb/cdns3/gadget.c +++ b/drivers/usb/cdns3/gadget.c @@ -2579,7 +2579,7 @@ static int cdns3_gadget_start(struct cdns3 *cdns) if (!priv_dev->onchip_buffers) priv_dev->onchip_buffers = 256; - max_speed = usb_get_maximum_speed(dev_of_offset(cdns->dev)); + max_speed = usb_get_maximum_speed(dev_ofnode(cdns->dev)); /* Check the maximum_speed parameter */ switch (max_speed) { diff --git a/drivers/usb/common/common.c b/drivers/usb/common/common.c index a55def5aba..0db281b970 100644 --- a/drivers/usb/common/common.c +++ b/drivers/usb/common/common.c @@ -7,7 +7,7 @@ */ #include -#include +#include #include #include @@ -20,13 +20,12 @@ 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_read_string(node, "dr_mode"); if (!dr_mode) { pr_err("usb dr_mode not found\n"); return USB_DR_MODE_UNKNOWN; @@ -48,13 +47,12 @@ 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_read_string(node, "maximum-speed"); 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 3e116b2c5c..febcfc0f54 100644 --- a/drivers/usb/dwc3/dwc3-generic.c +++ b/drivers/usb/dwc3/dwc3-generic.c @@ -88,9 +88,9 @@ static int dwc3_generic_remove(struct udevice *dev, static int dwc3_generic_ofdata_to_platdata(struct udevice *dev) { struct dwc3_generic_plat *plat = dev_get_platdata(dev); - int node = dev_of_offset(dev); + ofnode node = dev->node; - plat->base = devfdt_get_addr(dev); + plat->base = dev_read_addr(dev); plat->maximum_speed = usb_get_maximum_speed(node); if (plat->maximum_speed == USB_SPEED_UNKNOWN) { @@ -284,13 +284,11 @@ struct dwc3_glue_ops ti_ops = { static int dwc3_glue_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); + ofnode_for_each_subnode(node, parent->node) { + const char *name = ofnode_get_name(node); enum usb_dr_mode dr_mode; struct udevice *dev; const char *driver = NULL; @@ -322,7 +320,7 @@ static int dwc3_glue_bind(struct udevice *parent) continue; 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__); @@ -400,7 +398,7 @@ static int dwc3_glue_probe(struct udevice *dev) while (child) { enum usb_dr_mode dr_mode; - dr_mode = usb_get_dr_mode(dev_of_offset(child)); + dr_mode = usb_get_dr_mode(child->node); device_find_next_child(&child); if (ops && ops->select_dr_mode) ops->select_dr_mode(dev, index, dr_mode); diff --git a/drivers/usb/dwc3/dwc3-meson-g12a.c b/drivers/usb/dwc3/dwc3-meson-g12a.c index 832bcd70ff..d4453f8784 100644 --- a/drivers/usb/dwc3/dwc3-meson-g12a.c +++ b/drivers/usb/dwc3/dwc3-meson-g12a.c @@ -393,7 +393,7 @@ static int dwc3_meson_g12a_probe(struct udevice *dev) } #endif - priv->otg_mode = usb_get_dr_mode(dev_of_offset(dev)); + priv->otg_mode = usb_get_dr_mode(dev->node); ret = dwc3_meson_g12a_usb_init(priv); if (ret) diff --git a/drivers/usb/gadget/dwc2_udc_otg.c b/drivers/usb/gadget/dwc2_udc_otg.c index 496abf38e7..b9c814cf73 100644 --- a/drivers/usb/gadget/dwc2_udc_otg.c +++ b/drivers/usb/gadget/dwc2_udc_otg.c @@ -1039,13 +1039,12 @@ void dwc2_phy_shutdown(struct udevice *dev, struct phy *usb_phys, int num_phys) static int dwc2_udc_otg_ofdata_to_platdata(struct udevice *dev) { struct dwc2_plat_otg_data *platdata = dev_get_platdata(dev); - int node = dev_of_offset(dev); ulong drvdata; void (*set_params)(struct dwc2_plat_otg_data *data); int ret; - if (usb_get_dr_mode(node) != USB_DR_MODE_PERIPHERAL && - usb_get_dr_mode(node) != USB_DR_MODE_OTG) { + if (usb_get_dr_mode(dev->node) != USB_DR_MODE_PERIPHERAL && + usb_get_dr_mode(dev->node) != USB_DR_MODE_OTG) { dev_dbg(dev, "Invalid mode\n"); return -ENODEV; } diff --git a/drivers/usb/host/dwc3-sti-glue.c b/drivers/usb/host/dwc3-sti-glue.c index ad7cf6e6b5..c99a1985cc 100644 --- a/drivers/usb/host/dwc3-sti-glue.c +++ b/drivers/usb/host/dwc3-sti-glue.c @@ -10,8 +10,6 @@ #include #include #include -#include -#include #include #include #include @@ -109,8 +107,7 @@ static int sti_dwc3_glue_ofdata_to_platdata(struct udevice *dev) int ret; u32 reg[4]; - ret = fdtdec_get_int_array(gd->fdt_blob, dev_of_offset(dev), - "reg", reg, ARRAY_SIZE(reg)); + ret = ofnode_read_u32_array(dev->node, "reg", reg, ARRAY_SIZE(reg)); if (ret) { pr_err("unable to find st,stih407-dwc3 reg property(%d)\n", ret); return ret; @@ -153,18 +150,15 @@ 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 node, dwc3_node; - /* check if one subnode is present */ - dwc3_node = fdt_first_subnode(gd->fdt_blob, dev_of_offset(dev)); - if (dwc3_node <= 0) { - pr_err("Can't find subnode for %s\n", dev->name); - return -ENODEV; + /* Find snps,dwc3 node from subnode */ + ofnode_for_each_subnode(node, dev->node) { + if (ofnode_device_is_compatible(node, "snps,dwc3")) + dwc3_node = node; } - /* 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_valid(node)) { pr_err("Can't find dwc3 subnode for %s\n", dev->name); return -ENODEV; } diff --git a/drivers/usb/host/ehci-mx6.c b/drivers/usb/host/ehci-mx6.c index 1993ad620a..f2ceb51310 100644 --- a/drivers/usb/host/ehci-mx6.c +++ b/drivers/usb/host/ehci-mx6.c @@ -513,7 +513,7 @@ static int ehci_usb_ofdata_to_platdata(struct udevice *dev) struct usb_platdata *plat = dev_get_platdata(dev); enum usb_dr_mode dr_mode; - dr_mode = usb_get_dr_mode(dev_of_offset(dev)); + dr_mode = usb_get_dr_mode(dev->node); switch (dr_mode) { case USB_DR_MODE_HOST: diff --git a/drivers/usb/host/xhci-dwc3.c b/drivers/usb/host/xhci-dwc3.c index c1c681ca6c..9fcfa39d4b 100644 --- a/drivers/usb/host/xhci-dwc3.c +++ b/drivers/usb/host/xhci-dwc3.c @@ -9,7 +9,6 @@ #include #include -#include #include #include #include @@ -155,7 +154,7 @@ static int xhci_dwc3_probe(struct udevice *dev) writel(reg, &dwc3_reg->g_usb2phycfg[0]); - dr_mode = usb_get_dr_mode(dev_of_offset(dev)); + dr_mode = usb_get_dr_mode(dev->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/musb-new/ti-musb.c b/drivers/usb/musb-new/ti-musb.c index 00759f3e83..608facefa3 100644 --- a/drivers/usb/musb-new/ti-musb.c +++ b/drivers/usb/musb-new/ti-musb.c @@ -285,14 +285,12 @@ U_BOOT_DRIVER(ti_musb_peripheral) = { #if CONFIG_IS_ENABLED(OF_CONTROL) 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)) { + ofnode_for_each_subnode(node, parent->node) { struct udevice *dev; - const char *name = fdt_get_name(fdt, node, NULL); + const char *name = ofnode_get_name(node); enum usb_dr_mode dr_mode; struct driver *drv; @@ -306,7 +304,7 @@ static int ti_musb_wrapper_bind(struct udevice *parent) ret = device_bind_driver_to_node(parent, "ti-musb-peripheral", name, - offset_to_ofnode(node), + node, &dev); if (ret) pr_err("musb - not able to bind usb peripheral node\n"); @@ -316,7 +314,7 @@ static int ti_musb_wrapper_bind(struct udevice *parent) ret = device_bind_driver_to_node(parent, "ti-musb-host", name, - offset_to_ofnode(node), + node, &dev); if (ret) pr_err("musb - not able to bind usb host node\n"); diff --git a/include/linux/usb/otg.h b/include/linux/usb/otg.h index d2604c5caf..c19b916be9 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 + enum usb_dr_mode { USB_DR_MODE_UNKNOWN, USB_DR_MODE_HOST, @@ -18,20 +20,20 @@ enum usb_dr_mode { /** * usb_get_dr_mode() - Get dual role mode for given device - * @node: Node offset to the given device + * @node: ofnode of the given device * * 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 - * @node: Node offset to the given device + * @node: ofnode of the given device * * 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 */