pwm: renesas: Drop usage of pwm_[gs]et_chip_data()

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Instead of distributing the driver's bookkeeping over 5 (i.e.
TPU_CHANNEL_MAX + 1) separately allocated memory chunks, put all together
in struct tpu_device. This reduces the number of memory allocations and
so fragmentation and maybe even the number of cache misses. Also
&tpu->tpd[pwm->hwpwm] is cheaper to evaluate than pwm_get_chip_data(pwm)
as the former is just an addition in machine code while the latter involves
a function call.

Link: https://lore.kernel.org/r/20230705080650.2353391-6-u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

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Uwe Kleine-König 2023-07-05 10:06:47 +02:00 • committed by Thierry Reding

parent 06cc476775

commit ec63391a0d

1 changed files with 11 additions and 11 deletions

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drivers/pwm/pwm-renesas-tpu.c

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