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| author | Hans de Goede <hdegoede@redhat.com> | 2016-12-19 01:13:08 +0100 |
|---|---|---|
| committer | Chanwoo Choi <cw00.choi@samsung.com> | 2017-01-09 10:04:10 +0900 |
| commit | 3fe1e0e2ab509863c1e9809a085508d8bce3e079 (patch) | |
| tree | 9052aec883ac2d545a2fcf8c39127d718a75c494 /drivers/extcon/extcon-axp288.c | |
| parent | 1490d157e0759b12913cc0d3b734a03bbcb8cb61 (diff) | |
| download | linux-stable-3fe1e0e2ab509863c1e9809a085508d8bce3e079.tar.gz linux-stable-3fe1e0e2ab509863c1e9809a085508d8bce3e079.tar.bz2 linux-stable-3fe1e0e2ab509863c1e9809a085508d8bce3e079.zip | |
extcon: axp288: Simplify axp288_handle_chrg_det_event
axp288_handle_chrg_det_event only gets called on change interrupts
(so not that often), extcon_set_state_sync() checks itself if there are
any actual changes before notifying listeners, and gpiod_set_value is
not really expensive either.
So we can simply always do both on each interrupt removing a bunch of
somewhat magic looking code from axp288_handle_chrg_det_event.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Chanwoo Choi <cw00.choi@samsung.com>
Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com>
Diffstat (limited to 'drivers/extcon/extcon-axp288.c')
| -rw-r--r-- | drivers/extcon/extcon-axp288.c | 37 |
1 files changed, 12 insertions, 25 deletions
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c index 3d5e84ea489d..43b3637a71a9 100644 --- a/drivers/extcon/extcon-axp288.c +++ b/drivers/extcon/extcon-axp288.c @@ -154,7 +154,6 @@ static void axp288_extcon_log_rsi(struct axp288_extcon_info *info) static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info) { - static bool notify_otg, notify_charger; static unsigned int cable; int ret, stat, cfg, pwr_stat; u8 chrg_type; @@ -168,7 +167,7 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info) vbus_attach = (pwr_stat & PS_STAT_VBUS_PRESENT); if (!vbus_attach) - goto notify_otg; + goto no_vbus; /* Check charger detection completion status */ ret = regmap_read(info->regmap, AXP288_BC_GLOBAL_REG, &cfg); @@ -188,19 +187,14 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info) switch (chrg_type) { case DET_STAT_SDP: dev_dbg(info->dev, "sdp cable is connected\n"); - notify_otg = true; - notify_charger = true; cable = EXTCON_CHG_USB_SDP; break; case DET_STAT_CDP: dev_dbg(info->dev, "cdp cable is connected\n"); - notify_otg = true; - notify_charger = true; cable = EXTCON_CHG_USB_CDP; break; case DET_STAT_DCP: dev_dbg(info->dev, "dcp cable is connected\n"); - notify_charger = true; cable = EXTCON_CHG_USB_DCP; break; default: @@ -208,24 +202,17 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info) "disconnect or unknown or ID event\n"); } -notify_otg: - if (notify_otg) { - /* - * If VBUS is absent Connect D+/D- lines to PMIC for BC - * detection. Else connect them to SOC for USB communication. - */ - if (info->gpio_mux_cntl) - gpiod_set_value(info->gpio_mux_cntl, - vbus_attach ? EXTCON_GPIO_MUX_SEL_SOC - : EXTCON_GPIO_MUX_SEL_PMIC); - } - - if (notify_charger) - extcon_set_state_sync(info->edev, cable, vbus_attach); - - /* Clear the flags on disconnect event */ - if (!vbus_attach) - notify_otg = notify_charger = false; +no_vbus: + /* + * If VBUS is absent Connect D+/D- lines to PMIC for BC + * detection. Else connect them to SOC for USB communication. + */ + if (info->gpio_mux_cntl) + gpiod_set_value(info->gpio_mux_cntl, + vbus_attach ? EXTCON_GPIO_MUX_SEL_SOC + : EXTCON_GPIO_MUX_SEL_PMIC); + + extcon_set_state_sync(info->edev, cable, vbus_attach); return 0; |