From: Patrice Chotard Date: Fri, 10 Sep 2021 14:16:20 +0000 (+0200) Subject: cmd: bind: Fix driver binding on a device X-Git-Tag: v2022.01~90^2~4 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=38f7d3b6530edae4c4d506d6b9dbd0ae8b8ee5e6;p=platform%2Fkernel%2Fu-boot.git cmd: bind: Fix driver binding on a device Fix a regression brings by commit 84f8e36f03fa ("cmd: bind: allow to bind driver with driver data") As example, the following bind command doesn't work: bind /soc/usb-otg@49000000 usb_ether As usb_ether driver has no compatible string, it can't be find by lists_bind_fdt(). In bind_by_node_path(), which called lists_bind_fdt(), the driver entry is known, pass it to lists_bind_fdt() to force the driver entry selection. For this, add a new parameter struct *driver to lists_bind_fdt(). Fix also all lists_bind_fdt() callers. Fixes: 84f8e36f03fa ("cmd: bind: allow to bind driver with driver data") Signed-off-by: Patrice Chotard Reported-by: Herbert Poetzl Cc: Marek Vasut Cc: Herbert Poetzl Reviewed-by: Andy Shevchenko Reviewed-by: Simon Glass --- diff --git a/board/congatec/cgtqmx8/spl.c b/board/congatec/cgtqmx8/spl.c index 2a5d4c1..37b7221 100644 --- a/board/congatec/cgtqmx8/spl.c +++ b/board/congatec/cgtqmx8/spl.c @@ -32,7 +32,7 @@ void spl_board_init(void) offset = fdt_node_offset_by_compatible(gd->fdt_blob, -1, "nxp,imx8-pd"); while (offset != -FDT_ERR_NOTFOUND) { lists_bind_fdt(gd->dm_root, offset_to_ofnode(offset), - NULL, true); + NULL, NULL, true); offset = fdt_node_offset_by_compatible(gd->fdt_blob, offset, "nxp,imx8-pd"); } diff --git a/cmd/bind.c b/cmd/bind.c index 07c629e..4d1b788 100644 --- a/cmd/bind.c +++ b/cmd/bind.c @@ -152,7 +152,7 @@ static int bind_by_node_path(const char *path, const char *drv_name) } ofnode = ofnode_path(path); - ret = lists_bind_fdt(parent, ofnode, &dev, false); + ret = lists_bind_fdt(parent, ofnode, &dev, drv, false); if (!dev || ret) { printf("Unable to bind. err:%d\n", ret); diff --git a/drivers/core/device.c b/drivers/core/device.c index 29668f6..6f84762 100644 --- a/drivers/core/device.c +++ b/drivers/core/device.c @@ -1135,7 +1135,7 @@ int dev_enable_by_path(const char *path) if (ret) return ret; - return lists_bind_fdt(parent, node, NULL, false); + return lists_bind_fdt(parent, node, NULL, NULL, false); } #endif diff --git a/drivers/core/lists.c b/drivers/core/lists.c index e214306..c9cd74a 100644 --- a/drivers/core/lists.c +++ b/drivers/core/lists.c @@ -182,7 +182,7 @@ static int driver_check_compatible(const struct udevice_id *of_match, } int lists_bind_fdt(struct udevice *parent, ofnode node, struct udevice **devp, - bool pre_reloc_only) + struct driver *drv, bool pre_reloc_only) { struct driver *driver = ll_entry_start(struct driver, driver); const int n_ents = ll_entry_count(struct driver, driver); @@ -225,6 +225,8 @@ int lists_bind_fdt(struct udevice *parent, ofnode node, struct udevice **devp, for (entry = driver; entry != driver + n_ents; entry++) { ret = driver_check_compatible(entry->of_match, &id, compat); + if ((drv) && (drv == entry)) + break; if (!ret) break; } diff --git a/drivers/core/root.c b/drivers/core/root.c index 78eee08..86f9776 100644 --- a/drivers/core/root.c +++ b/drivers/core/root.c @@ -276,7 +276,7 @@ static int dm_scan_fdt_node(struct udevice *parent, ofnode parent_node, pr_debug(" - ignoring disabled device\n"); continue; } - err = lists_bind_fdt(parent, node, NULL, pre_reloc_only); + err = lists_bind_fdt(parent, node, NULL, NULL, pre_reloc_only); if (err && !ret) { ret = err; debug("%s: ret=%d\n", node_name, ret); diff --git a/drivers/misc/imx8/scu.c b/drivers/misc/imx8/scu.c index 035a600..4ab5cb4 100644 --- a/drivers/misc/imx8/scu.c +++ b/drivers/misc/imx8/scu.c @@ -219,7 +219,7 @@ static int imx8_scu_bind(struct udevice *dev) debug("%s(dev=%p)\n", __func__, dev); ofnode_for_each_subnode(node, dev_ofnode(dev)) { - ret = lists_bind_fdt(dev, node, &child, true); + ret = lists_bind_fdt(dev, node, &child, NULL, true); if (ret) return ret; debug("bind child dev %s\n", child->name); diff --git a/drivers/serial/serial-uclass.c b/drivers/serial/serial-uclass.c index 8171b17..01387c1 100644 --- a/drivers/serial/serial-uclass.c +++ b/drivers/serial/serial-uclass.c @@ -69,7 +69,7 @@ static int serial_check_stdout(const void *blob, struct udevice **devp) * anyway. */ if (node > 0 && !lists_bind_fdt(gd->dm_root, offset_to_ofnode(node), - devp, false)) { + devp, NULL, false)) { if (!device_probe(*devp)) return 0; } diff --git a/drivers/timer/timer-uclass.c b/drivers/timer/timer-uclass.c index c8e8419..ebea168 100644 --- a/drivers/timer/timer-uclass.c +++ b/drivers/timer/timer-uclass.c @@ -146,7 +146,7 @@ int notrace dm_timer_init(void) * If the timer is not marked to be bound before * relocation, bind it anyway. */ - if (!lists_bind_fdt(dm_root(), node, &dev, false)) { + if (!lists_bind_fdt(dm_root(), node, &dev, NULL, false)) { ret = device_probe(dev); if (ret) return ret; diff --git a/include/dm/lists.h b/include/dm/lists.h index 1a86552..5896ae3 100644 --- a/include/dm/lists.h +++ b/include/dm/lists.h @@ -53,13 +53,14 @@ int lists_bind_drivers(struct udevice *parent, bool pre_reloc_only); * @parent: parent device (root) * @node: device tree node to bind * @devp: if non-NULL, returns a pointer to the bound device + * @drv: if non-NULL, force this driver to be bound * @pre_reloc_only: If true, bind only nodes with special devicetree properties, * or drivers with the DM_FLAG_PRE_RELOC flag. If false bind all drivers. * @return 0 if device was bound, -EINVAL if the device tree is invalid, * other -ve value on error */ int lists_bind_fdt(struct udevice *parent, ofnode node, struct udevice **devp, - bool pre_reloc_only); + struct driver *drv, bool pre_reloc_only); /** * device_bind_driver() - bind a device to a driver diff --git a/test/dm/nop.c b/test/dm/nop.c index 2cd92c5..75b9e7b 100644 --- a/test/dm/nop.c +++ b/test/dm/nop.c @@ -25,7 +25,7 @@ static int noptest_bind(struct udevice *parent) const char *bind_flag = ofnode_read_string(ofnode, "bind"); if (bind_flag && (strcmp(bind_flag, "True") == 0)) - lists_bind_fdt(parent, ofnode, &dev, false); + lists_bind_fdt(parent, ofnode, &dev, NULL, false); ofnode = dev_read_next_subnode(ofnode); }