[PATCH v4 18/20] extcon: intel-cht-wc: Refactor cht_wc_extcon_get_charger()

Hans de Goede
2022-01-30T20:48:19Z

This is a preparation patch for adding support for registering
a power_supply class device.

Setting usbsrc to "CHT_WC_USBSRC_TYPE_SDP << CHT_WC_USBSRC_TYPE_SHIFT"
will make the following switch-case return EXTCON_CHG_USB_SDP
just as before, so there is no functional change.

Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
---
Changes in v3:
- Reword the commit message
---
drivers/extcon/extcon-intel-cht-wc.c | 15 ++++++++-------
1 file changed, 8 insertions(+), 7 deletions(-)

diff --git a/drivers/extcon/extcon-intel-cht-wc.c b/drivers/extcon/extcon-intel-cht-wc.c
index edc386937dee..150637bea417 100644
--- a/drivers/extcon/extcon-intel-cht-wc.c
+++ b/drivers/extcon/extcon-intel-cht-wc.c
@@ -153,14 +153,15 @@ static int cht_wc_extcon_get_charger(struct cht_wc_extcon_data *ext,
} while (time_before(jiffies, timeout));

if (status != CHT_WC_USBSRC_STS_SUCCESS) {
- if (ignore_errors)
- return EXTCON_CHG_USB_SDP; /* Save fallback */
+ if (!ignore_errors) {
+ if (status == CHT_WC_USBSRC_STS_FAIL)
+ dev_warn(ext->dev, "Could not detect charger type\n");
+ else
+ dev_warn(ext->dev, "Timeout detecting charger type\n");
+ }

- if (status == CHT_WC_USBSRC_STS_FAIL)
- dev_warn(ext->dev, "Could not detect charger type\n");
- else
- dev_warn(ext->dev, "Timeout detecting charger type\n");
- return EXTCON_CHG_USB_SDP; /* Save fallback */
+ /* Save fallback */
+ usbsrc = CHT_WC_USBSRC_TYPE_SDP << CHT_WC_USBSRC_TYPE_SHIFT;
}

usbsrc = (usbsrc & CHT_WC_USBSRC_TYPE_MASK) >> CHT_WC_USBSRC_TYPE_SHIFT;
--
2.33.1