| Message ID | 1413350495-40980-3-git-send-email-Li.Xiubo@freescale.com |
|---|---|
| State | Accepted |
| Headers | show |
diff --git a/drivers/pwm/pwm-fsl-ftm.c b/drivers/pwm/pwm-fsl-ftm.c index 1150598..9bfbea5 100644 --- a/drivers/pwm/pwm-fsl-ftm.c +++ b/drivers/pwm/pwm-fsl-ftm.c @@ -397,12 +397,23 @@ static int fsl_pwm_init(struct fsl_pwm_chip *fpc) return 0; } +static bool fsl_pwm_volatile_reg(struct device *dev, unsigned int reg) +{ + switch (reg) { + case FTM_CNT: + return true; + } + return false; +} + static const struct regmap_config fsl_pwm_regmap_config = { .reg_bits = 32, .reg_stride = 4, .val_bits = 32, .max_register = FTM_PWMLOAD, + .volatile_reg = fsl_pwm_volatile_reg, + .cache_type = REGCACHE_RBTREE, }; static int fsl_pwm_probe(struct platform_device *pdev)
This patch is to prepare for adding PM support for FTM pwm driver using callback function suspend and resume in .driver.pm of platform_driver. Signed-off-by: Xiubo Li <Li.Xiubo@freescale.com> --- drivers/pwm/pwm-fsl-ftm.c | 11 +++++++++++ 1 file changed, 11 insertions(+)