> Subject: Re: [PATCH v4 4/4] mfd: Add RZ/G2L MTU3 PWM driver > > On 10/10/2022 10:52, Biju Das wrote: > > Add support for RZ/G2L MTU3 PWM driver. The IP supports following > PWM > > modes > > > > 1) PWM mode{1,2} > > 2) Reset-synchronized PWM mode > > 3) Complementary PWM mode{1,2,3} > > > > This patch adds basic pwm mode 1 support for RZ/G2L MTU3 driver by > > creating separate logical channels for each IOs. > > > > Signed-off-by: Biju Das <biju.das.jz@xxxxxxxxxxxxxx> > > --- > > v3->v4: > > * There is no resource associated with "rz-mtu3-pwm" compatible > > and moved the code to mfd subsystem as it binds against "rz-mtu". > > * Removed struct platform_driver rz_mtu3_pwm_driver. > > v2->v3: > > * No change. > > v1->v2: > > * Modelled as a single PWM device handling multiple channles. > > * Used PM framework to manage the clocks. > > --- > > drivers/mfd/Kconfig | 6 + > > drivers/mfd/Makefile | 2 + > > drivers/mfd/rz-mtu3-pwm.c | 405 > > ++++++++++++++++++++++++++++++++++++++ > > That's not a MFD driver. That's a PWM. Use proper subsystem and email > prefix. See [1] [1] https://patchwork.kernel.org/project/linux-renesas-soc/patch/20221006135717.1748560-2-biju.das.jz@xxxxxxxxxxxxxx/ It is a single driver that binds against "renesas,rz-mtu3", and registers both the counter and the pwm functionalities. Just like the clock driver, which registers clock, reset, and PM Domain functionalities. It is same here, a single MFD driver which binds against ""renesas,rz-mtu3" and registers counter And pwm functionalities. rz-mtu-core is core driver which provides resources to child devices like counter and pwm. I already copied PWM subsystem in the loop. Am I missing anything related to [1] Cheers, Biju