diff options
Diffstat (limited to 'drivers/firmware/imx/imx-scu.c')
| -rw-r--r-- | drivers/firmware/imx/imx-scu.c | 27 |
1 files changed, 18 insertions, 9 deletions
diff --git a/drivers/firmware/imx/imx-scu.c b/drivers/firmware/imx/imx-scu.c index dca79caccd01..67b267a7408a 100644 --- a/drivers/firmware/imx/imx-scu.c +++ b/drivers/firmware/imx/imx-scu.c @@ -16,11 +16,12 @@ #include <linux/mailbox_client.h> #include <linux/module.h> #include <linux/mutex.h> +#include <linux/of.h> #include <linux/of_platform.h> #include <linux/platform_device.h> #define SCU_MU_CHAN_NUM 8 -#define MAX_RX_TIMEOUT (msecs_to_jiffies(30)) +#define MAX_RX_TIMEOUT (msecs_to_jiffies(3000)) struct imx_sc_chan { struct imx_sc_ipc *sc_ipc; @@ -72,9 +73,9 @@ static int imx_sc_linux_errmap[IMX_SC_ERR_LAST] = { -EACCES, /* IMX_SC_ERR_NOACCESS */ -EACCES, /* IMX_SC_ERR_LOCKED */ -ERANGE, /* IMX_SC_ERR_UNAVAILABLE */ - -EEXIST, /* IMX_SC_ERR_NOTFOUND */ - -EPERM, /* IMX_SC_ERR_NOPOWER */ - -EPIPE, /* IMX_SC_ERR_IPC */ + -ENOENT, /* IMX_SC_ERR_NOTFOUND */ + -ENODEV, /* IMX_SC_ERR_NOPOWER */ + -ECOMM, /* IMX_SC_ERR_IPC */ -EBUSY, /* IMX_SC_ERR_BUSY */ -EIO, /* IMX_SC_ERR_FAIL */ }; @@ -279,6 +280,7 @@ static int imx_scu_probe(struct platform_device *pdev) return ret; sc_ipc->fast_ipc = of_device_is_compatible(args.np, "fsl,imx8-mu-scu"); + of_node_put(args.np); num_channel = sc_ipc->fast_ipc ? 2 : SCU_MU_CHAN_NUM; for (i = 0; i < num_channel; i++) { @@ -310,9 +312,8 @@ static int imx_scu_probe(struct platform_device *pdev) sc_chan->ch = mbox_request_channel_byname(cl, chan_name); if (IS_ERR(sc_chan->ch)) { ret = PTR_ERR(sc_chan->ch); - if (ret != -EPROBE_DEFER) - dev_err(dev, "Failed to request mbox chan %s ret %d\n", - chan_name, ret); + dev_err_probe(dev, ret, "Failed to request mbox chan %s\n", + chan_name); kfree(chan_name); return ret; } @@ -323,7 +324,9 @@ static int imx_scu_probe(struct platform_device *pdev) } sc_ipc->dev = dev; - mutex_init(&sc_ipc->lock); + ret = devm_mutex_init(dev, &sc_ipc->lock); + if (ret) + return ret; init_completion(&sc_ipc->done); imx_sc_ipc_handle = sc_ipc; @@ -351,10 +354,16 @@ static struct platform_driver imx_scu_driver = { .driver = { .name = "imx-scu", .of_match_table = imx_scu_match, + .suppress_bind_attrs = true, }, .probe = imx_scu_probe, }; -builtin_platform_driver(imx_scu_driver); + +static int __init imx_scu_driver_init(void) +{ + return platform_driver_register(&imx_scu_driver); +} +subsys_initcall_sync(imx_scu_driver_init); MODULE_AUTHOR("Dong Aisheng <aisheng.dong@nxp.com>"); MODULE_DESCRIPTION("IMX SCU firmware protocol driver"); |