diff options
| author | Stanley Chu <yschu@nuvoton.com> | 2025-03-06 15:54:26 +0800 |
|---|---|---|
| committer | Alexandre Belloni <alexandre.belloni@bootlin.com> | 2025-03-06 21:51:22 +0100 |
| commit | 98d87600a04e42282797631aa6b98dd43999e274 (patch) | |
| tree | 098e0e6a0d5d02a5448250594c8828fc5e2c5428 | |
| parent | c24a084ab6a2c6522f779acd2dfc1d5c062c7781 (diff) | |
i3c: master: svc: Add support for Nuvoton npcm845 i3c
Nuvoton npcm845 SoC uses an older IP version, which has specific
hardware issues that need to be addressed with a different compatible
string.
Add driver data for different compatible strings to define platform
specific quirks.
Add compatible string for npcm845 to define its own driver data.
Signed-off-by: Stanley Chu <yschu@nuvoton.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250306075429.2265183-3-yschu@nuvoton.com
Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com>
| -rw-r--r-- | drivers/i3c/master/svc-i3c-master.c | 17 |
1 files changed, 16 insertions, 1 deletions
diff --git a/drivers/i3c/master/svc-i3c-master.c b/drivers/i3c/master/svc-i3c-master.c index 98f800f99969..c0299e3f2cf8 100644 --- a/drivers/i3c/master/svc-i3c-master.c +++ b/drivers/i3c/master/svc-i3c-master.c @@ -158,6 +158,10 @@ struct svc_i3c_regs_save { u32 mdynaddr; }; +struct svc_i3c_drvdata { + u32 quirks; +}; + /** * struct svc_i3c_master - Silvaco I3C Master structure * @base: I3C master controller @@ -183,6 +187,7 @@ struct svc_i3c_regs_save { * @ibi.tbq_slot: To be queued IBI slot * @ibi.lock: IBI lock * @lock: Transfer lock, protect between IBI work thread and callbacks from master + * @drvdata: Driver data * @enabled_events: Bit masks for enable events (IBI, HotJoin). * @mctrl_config: Configuration value in SVC_I3C_MCTRL for setting speed back. */ @@ -214,6 +219,7 @@ struct svc_i3c_master { spinlock_t lock; } ibi; struct mutex lock; + const struct svc_i3c_drvdata *drvdata; u32 enabled_events; u32 mctrl_config; }; @@ -1819,6 +1825,10 @@ static int svc_i3c_master_probe(struct platform_device *pdev) if (!master) return -ENOMEM; + master->drvdata = of_device_get_match_data(dev); + if (!master->drvdata) + return -EINVAL; + master->regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(master->regs)) return PTR_ERR(master->regs); @@ -1960,8 +1970,13 @@ static const struct dev_pm_ops svc_i3c_pm_ops = { svc_i3c_runtime_resume, NULL) }; +static const struct svc_i3c_drvdata npcm845_drvdata = {}; + +static const struct svc_i3c_drvdata svc_default_drvdata = {}; + static const struct of_device_id svc_i3c_master_of_match_tbl[] = { - { .compatible = "silvaco,i3c-master-v1"}, + { .compatible = "nuvoton,npcm845-i3c", .data = &npcm845_drvdata }, + { .compatible = "silvaco,i3c-master-v1", .data = &svc_default_drvdata }, { /* sentinel */ }, }; MODULE_DEVICE_TABLE(of, svc_i3c_master_of_match_tbl); |