diff options
Diffstat (limited to 'drivers/firmware/ti_sci.c')
| -rw-r--r-- | drivers/firmware/ti_sci.c | 69 |
1 files changed, 9 insertions, 60 deletions
diff --git a/drivers/firmware/ti_sci.c b/drivers/firmware/ti_sci.c index 26a37f47f4ca..7041befc756a 100644 --- a/drivers/firmware/ti_sci.c +++ b/drivers/firmware/ti_sci.c @@ -16,7 +16,10 @@ #include <linux/kernel.h> #include <linux/mailbox_client.h> #include <linux/module.h> -#include <linux/of_device.h> +#include <linux/of.h> +#include <linux/of_platform.h> +#include <linux/platform_device.h> +#include <linux/property.h> #include <linux/semaphore.h> #include <linux/slab.h> #include <linux/soc/ti/ti-msgmgr.h> @@ -190,19 +193,6 @@ static int ti_sci_debugfs_create(struct platform_device *pdev, return 0; } -/** - * ti_sci_debugfs_destroy() - clean up log debug file - * @pdev: platform device pointer - * @info: Pointer to SCI entity information - */ -static void ti_sci_debugfs_destroy(struct platform_device *pdev, - struct ti_sci_info *info) -{ - if (IS_ERR(info->debug_region)) - return; - - debugfs_remove(info->d); -} #else /* CONFIG_DEBUG_FS */ static inline int ti_sci_debugfs_create(struct platform_device *dev, struct ti_sci_info *info) @@ -485,7 +475,7 @@ static int ti_sci_cmd_get_revision(struct ti_sci_info *info) ver->abi_major = rev_info->abi_major; ver->abi_minor = rev_info->abi_minor; ver->firmware_revision = rev_info->firmware_revision; - strncpy(ver->firmware_description, rev_info->firmware_description, + strscpy(ver->firmware_description, rev_info->firmware_description, sizeof(ver->firmware_description)); fail: @@ -2886,7 +2876,6 @@ static void ti_sci_setup_ops(struct ti_sci_info *info) const struct ti_sci_handle *ti_sci_get_handle(struct device *dev) { struct device_node *ti_sci_np; - struct list_head *p; struct ti_sci_handle *handle = NULL; struct ti_sci_info *info; @@ -2901,8 +2890,7 @@ const struct ti_sci_handle *ti_sci_get_handle(struct device *dev) } mutex_lock(&ti_sci_list_mutex); - list_for_each(p, &ti_sci_list) { - info = list_entry(p, struct ti_sci_info, node); + list_for_each_entry(info, &ti_sci_list, node) { if (ti_sci_np == info->dev->of_node) { handle = &info->handle; info->users++; @@ -3012,7 +3000,6 @@ const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np, struct ti_sci_handle *handle = NULL; struct device_node *ti_sci_np; struct ti_sci_info *info; - struct list_head *p; if (!np) { pr_err("I need a device pointer\n"); @@ -3024,8 +3011,7 @@ const struct ti_sci_handle *ti_sci_get_by_phandle(struct device_node *np, return ERR_PTR(-ENODEV); mutex_lock(&ti_sci_list_mutex); - list_for_each(p, &ti_sci_list) { - info = list_entry(p, struct ti_sci_info, node); + list_for_each_entry(info, &ti_sci_list, node) { if (ti_sci_np == info->dev->of_node) { handle = &info->handle; info->users++; @@ -3310,7 +3296,6 @@ MODULE_DEVICE_TABLE(of, ti_sci_of_match); static int ti_sci_probe(struct platform_device *pdev) { struct device *dev = &pdev->dev; - const struct of_device_id *of_id; const struct ti_sci_desc *desc; struct ti_sci_xfer *xfer; struct ti_sci_info *info = NULL; @@ -3321,12 +3306,7 @@ static int ti_sci_probe(struct platform_device *pdev) int reboot = 0; u32 h_id; - of_id = of_match_device(ti_sci_of_match, dev); - if (!of_id) { - dev_err(dev, "OF data missing\n"); - return -EINVAL; - } - desc = of_id->data; + desc = device_get_match_data(dev); info = devm_kzalloc(dev, sizeof(*info), GFP_KERNEL); if (!info) @@ -3449,43 +3429,12 @@ out: return ret; } -static int ti_sci_remove(struct platform_device *pdev) -{ - struct ti_sci_info *info; - struct device *dev = &pdev->dev; - int ret = 0; - - of_platform_depopulate(dev); - - info = platform_get_drvdata(pdev); - - if (info->nb.notifier_call) - unregister_restart_handler(&info->nb); - - mutex_lock(&ti_sci_list_mutex); - if (info->users) - ret = -EBUSY; - else - list_del(&info->node); - mutex_unlock(&ti_sci_list_mutex); - - if (!ret) { - ti_sci_debugfs_destroy(pdev, info); - - /* Safe to free channels since no more users */ - mbox_free_channel(info->chan_tx); - mbox_free_channel(info->chan_rx); - } - - return ret; -} - static struct platform_driver ti_sci_driver = { .probe = ti_sci_probe, - .remove = ti_sci_remove, .driver = { .name = "ti-sci", .of_match_table = of_match_ptr(ti_sci_of_match), + .suppress_bind_attrs = true, }, }; module_platform_driver(ti_sci_driver); |