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author | Simon South | 2021-01-19 11:12:09 -0500 |
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committer | Thierry Reding | 2021-01-20 18:13:32 +0100 |
commit | 11be938ae003c1cf157f0e80d5c9ad29a0f4c34c (patch) | |
tree | e6f28027a57ef125d37ca3658091ebe6eb704d45 /lib/devres.c | |
parent | d21ba5d6217bd5a6a696678385906ed1994b380b (diff) |
pwm: rockchip: Enable clock before calling clk_get_rate()
The documentation for clk_get_rate() in include/linux/clk.h states the
function's result is valid only for a clock source that has been
enabled. However, the Rockchip PWM driver uses this function in two places
to query the rate of a clock without first ensuring it is enabled.
Fix this by modifying rockchip_pwm_get_state() and rockchip_pwm_apply() so
they enable a device's PWM clock before querying its rate (in the latter
case, the querying is actually done in rockchip_pwm_config()) and disable
the clock again before returning.
Reported-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Simon South <simon@simonsouth.net>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'lib/devres.c')
0 files changed, 0 insertions, 0 deletions