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path: root/drivers/pwm/pwm-meson.c
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2021-09-30WS cleanup: remove SPACE(s) followed by TABWolfgang Denk1-1/+1
Signed-off-by: Wolfgang Denk <wd@denx.de>
2021-01-05dm: core: Access device ofnode through functionsSimon Glass1-3/+6
At present ofnode is present in the device even if it is never used. With of-platdata this field is not used, so can be removed. In preparation for this, change the access to go through inline functions. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-14dm: treewide: Rename ofdata_to_platdata() to of_to_plat()Simon Glass1-2/+2
This name is far too long. Rename it to remove the 'data' bits. This makes it consistent with the platdata->plat rename. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-12-13dm: treewide: Rename auto_alloc_size members to be shorterSimon Glass1-1/+1
This construct is quite long-winded. In earlier days it made some sense since auto-allocation was a strange concept. But with driver model now used pretty universally, we can shorten this to 'auto'. This reduces verbosity and makes it easier to read. Coincidentally it also ensures that every declaration is on one line, thus making dtoc's job easier. Signed-off-by: Simon Glass <sjg@chromium.org>
2020-10-05pwm: Add driver for Amlogic Meson PWM controllerNeil Armstrong1-0/+528
This adds the driver for the PWM controller found in the Amlogic SoCs. This PWM is only a set of Gates, Dividers and Counters: PWM output is achieved by calculating a clock that permits calculating two periods (low and high). The counter then has to be set to switch after N cycles for the first half period. The hardware has no "polarity" setting. This driver reverses the period cycles (the low length is inverted with the high length) for PWM_POLARITY_INVERSED. Disabling the PWM stops the output immediately (without waiting for the current period to complete first). Signed-off-by: Neil Armstrong <narmstrong@baylibre.com>