i2c: imx-lpi2c: add runtime pm support

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Add runtime pm support to dynamically manage the clock to avoid enable/disable
clock in frequently that can improve the i2c bus transfer performance.

And use pm_runtime_force_suspend/resume() instead of lpi2c_imx_suspend/resume().

Signed-off-by: Fugang Duan <fugang.duan@nxp.com>
Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

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Fugang Duan 2018-01-02 17:11:52 +08:00 • committed by Wolfram Sang

parent fe34fbf93f

commit 13d6eb20fc

1 changed files with 51 additions and 17 deletions

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drivers/i2c/busses/i2c-imx-lpi2c.c

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