Re: [PATCH 03/12] i3c: master: Use unified device property interface
Rob Herring <[email protected]>
| Newsgroups | dev.linux.lists.acpica-devel,org.infradead.lists.linux-i3c,org.kernel.vger.linux-acpi,org.kernel.vger.linux-devicetree,org.kernel.vger.linux-hwmon,org.kernel.vger.linux-kernel,org.kernel.vger.linux-tegra |
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| Message-ID | <[email protected]> |
On Wed, Mar 18, 2026 at 10:57:16PM +0530, Akhil R wrote: > Replace all OF-specific functions with unified device property functions > as a prerequisite to support both ACPI and device tree. > > Signed-off-by: Akhil R <[email protected]> > --- > drivers/i3c/master.c | 91 ++++++++++++++++++++++---------------- > include/linux/i3c/master.h | 5 ++- > 2 files changed, 55 insertions(+), 41 deletions(-) > > diff --git a/drivers/i3c/master.c b/drivers/i3c/master.c > index c32847bc4d0d..2c479fecbfdf 100644 > --- a/drivers/i3c/master.c > +++ b/drivers/i3c/master.c [...] > @@ -3300,11 +3310,14 @@ static int __init i3c_init(void) > { > int res; > > - res = of_alias_get_highest_id("i3c"); > - if (res >= 0) { > - mutex_lock(&i3c_core_lock); > - __i3c_first_dynamic_bus_num = res + 1; > - mutex_unlock(&i3c_core_lock); > + /* of_alias_get_highest_id is DT-specific, only call for DT systems */ > + if (IS_ENABLED(CONFIG_OF)) { BTW, CONFIG_OF is *always* enabled on arm64. > + res = of_alias_get_highest_id("i3c"); This will just return an error if not booting with DT or if CONFIG_OF is disabled. > + if (res >= 0) { > + mutex_lock(&i3c_core_lock); > + __i3c_first_dynamic_bus_num = res + 1; > + mutex_unlock(&i3c_core_lock); > + } > } > > res = bus_register_notifier(&i2c_bus_type, &i2cdev_notifier);