diff options
| author | Alberto Panizzo <alberto@amarulasolutions.com> | 2018-07-09 19:46:46 +0200 |
|---|---|---|
| committer | Lee Jones <lee.jones@linaro.org> | 2018-07-27 08:13:25 +0100 |
| commit | 4d3e55bc7690b289eeae0c7e994db965cb2a993d (patch) | |
| tree | eecf5fd3cc7fffcb179c2aac4adbc03f873e9459 | |
| parent | 102370fb048a223df4054157d795924928537d11 (diff) | |
mfd: wm8994: Allow to configure CS/ADDR Pulldown from dts
For designs where CS/ADDR pin is floating, it is useful to
allow dts to define whether to keep internal pull down or not.
Signed-off-by: Alberto Panizzo <alberto@amarulasolutions.com>
Signed-off-by: Anthony Brandon <anthony@amarulasolutions.com>
Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
| -rw-r--r-- | drivers/mfd/wm8994-core.c | 4 | ||||
| -rw-r--r-- | include/linux/mfd/wm8994/pdata.h | 6 |
2 files changed, 10 insertions, 0 deletions
diff --git a/drivers/mfd/wm8994-core.c b/drivers/mfd/wm8994-core.c index fa4b1b7f6db1..22bd6525e09c 100644 --- a/drivers/mfd/wm8994-core.c +++ b/drivers/mfd/wm8994-core.c @@ -304,6 +304,8 @@ static int wm8994_set_pdata_from_of(struct wm8994 *wm8994) pdata->spkmode_pu = of_property_read_bool(np, "wlf,spkmode-pu"); + pdata->csnaddr_pd = of_property_read_bool(np, "wlf,csnaddr-pd"); + pdata->ldo[0].enable = of_get_named_gpio(np, "wlf,ldo1ena", 0); if (pdata->ldo[0].enable < 0) pdata->ldo[0].enable = 0; @@ -562,6 +564,8 @@ static int wm8994_device_init(struct wm8994 *wm8994, int irq) if (pdata->spkmode_pu) pulls |= WM8994_SPKMODE_PU; + if (pdata->csnaddr_pd) + pulls |= WM8994_CSNADDR_PD; /* Disable unneeded pulls */ wm8994_set_bits(wm8994, WM8994_PULL_CONTROL_2, diff --git a/include/linux/mfd/wm8994/pdata.h b/include/linux/mfd/wm8994/pdata.h index 90c60524a496..b19c370fe81a 100644 --- a/include/linux/mfd/wm8994/pdata.h +++ b/include/linux/mfd/wm8994/pdata.h @@ -222,6 +222,12 @@ struct wm8994_pdata { */ bool spkmode_pu; + /* + * CS/ADDR must be pulled internally by the device on this + * system. + */ + bool csnaddr_pd; + /** * Maximum number of channels clocks will be generated for, * useful for systems where and I2S bus with multiple data |