On Wed, Nov 10, 2021 at 09:49:49AM +0100, Uwe Kleine-König wrote:
> Each devm allocations has an overhead of 24 bytes to store the related
> struct devres_node additionally to the fragmentation of the allocator.
> So allocating 16 struct lpc18xx_pwm_data (which only hold a single int)
> adds quite some overhead. Instead put the per-channel data into the
> driver data struct and allocate it in one go.
> 
> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
> ---
>  drivers/pwm/pwm-lpc18xx-sct.c | 12 +++++-------
>  1 file changed, 5 insertions(+), 7 deletions(-)

This could've been merged with patch 3 to make it a bit more obvious why
this is useful. Patch 2 itself is a bit half-baked without patch 3. But
I'll apply these anyway.

Thanks,
Thierry