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author | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
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committer | Jiri Kosina <jkosina@suse.cz> | 2023-11-01 02:07:35 +0300 |
commit | 20cd569d7ee8fce24e8753f0f43af6c420557b1f (patch) | |
tree | f559cfda594846795aa51c99d96f92d8c912851a /drivers/i3c/master/svc-i3c-master.c | |
parent | 62cc9c3cb3ec1bf31cc116146185ed97b450836a (diff) | |
parent | eeebfe6259ba2d5b0980eb7b0df384eb77e9e4f5 (diff) | |
download | linux-20cd569d7ee8fce24e8753f0f43af6c420557b1f.tar.xz |
Merge branch 'for-6.7/config_pm' into for-linus
- #ifdef CONFIG_PM removal from HID code (Thomas Weißschuh)
Diffstat (limited to 'drivers/i3c/master/svc-i3c-master.c')
-rw-r--r-- | drivers/i3c/master/svc-i3c-master.c | 19 |
1 files changed, 15 insertions, 4 deletions
diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c index 0d63b732ef0c..8f8295acdadb 100644 --- a/drivers/i3c/master/svc-i3c-master.c +++ b/drivers/i3c/master/svc-i3c-master.c @@ -156,6 +156,7 @@ struct svc_i3c_regs_save { * @base: I3C master controller * @dev: Corresponding device * @regs: Memory mapping + * @saved_regs: Volatile values for PM operations * @free_slots: Bit array of available slots * @addrs: Array containing the dynamic addresses of each attached device * @descs: Array of descriptors, one per attached device @@ -789,6 +790,10 @@ static int svc_i3c_master_do_daa_locked(struct svc_i3c_master *master, */ break; } else if (SVC_I3C_MSTATUS_NACKED(reg)) { + /* No I3C devices attached */ + if (dev_nb == 0) + break; + /* * A slave device nacked the address, this is * allowed only once, DAA will be stopped and @@ -1263,11 +1268,17 @@ static int svc_i3c_master_send_ccc_cmd(struct i3c_master_controller *m, { struct svc_i3c_master *master = to_svc_i3c_master(m); bool broadcast = cmd->id < 0x80; + int ret; if (broadcast) - return svc_i3c_master_send_bdcast_ccc_cmd(master, cmd); + ret = svc_i3c_master_send_bdcast_ccc_cmd(master, cmd); else - return svc_i3c_master_send_direct_ccc_cmd(master, cmd); + ret = svc_i3c_master_send_direct_ccc_cmd(master, cmd); + + if (ret) + cmd->err = I3C_ERROR_M2; + + return ret; } static int svc_i3c_master_priv_xfers(struct i3c_dev_desc *dev, @@ -1518,8 +1529,8 @@ static int svc_i3c_master_probe(struct platform_device *pdev) return PTR_ERR(master->sclk); master->irq = platform_get_irq(pdev, 0); - if (master->irq <= 0) - return -ENOENT; + if (master->irq < 0) + return master->irq; master->dev = dev; |