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authorChanwoo Choi <cw00.choi@samsung.com>2015-04-24 19:16:05 +0900
committerChanwoo Choi <cw00.choi@samsung.com>2015-05-22 18:58:44 +0900
commit2a9de9c0f08d61fbe3764a21d22d0b72df97d6ae (patch)
treeabad4db6fcab2a64850e6874856b1d81608bd4bc /drivers/extcon/extcon-axp288.c
parent35eed7a0768886e2f66db3cdbf3faf6435275e6b (diff)
extcon: Use the unique id for external connector instead of string
This patch uses the unique id to identify the type of external connector instead of string name. The string name have the many potential issues. So, this patch defines the 'extcon' enumeration which includes all supported external connector on EXTCON subsystem. If new external connector is necessary, the unique id of new connector have to be added in 'extcon' enumeration. There are current supported external connector in 'enum extcon' as following: enum extcon { EXTCON_NONE = 0x0, /* USB external connector */ EXTCON_USB = 0x1, EXTCON_USB_HOST = 0x2, /* Charger external connector */ EXTCON_TA = 0x10, EXTCON_FAST_CHARGER = 0x11, EXTCON_SLOW_CHARGER = 0x12, EXTCON_CHARGE_DOWNSTREAM = 0x13, /* Audio and video external connector */ EXTCON_LINE_IN = 0x20, EXTCON_LINE_OUT = 0x21, EXTCON_MICROPHONE = 0x22, EXTCON_HEADPHONE = 0x23, EXTCON_HDMI = 0x30, EXTCON_MHL = 0x31, EXTCON_DVI = 0x32, EXTCON_VGA = 0x33, EXTCON_SPDIF_IN = 0x34, EXTCON_SPDIF_OUT = 0x35, EXTCON_VIDEO_IN = 0x36, EXTCON_VIDEO_OUT = 0x37, /* Miscellaneous external connector */ EXTCON_DOCK = 0x50, EXTCON_JIG = 0x51, EXTCON_MECHANICAL = 0x52, EXTCON_END, }; For example in extcon-arizona.c: To use unique id removes the potential issue about handling the inconsistent name of external connector with string. - Previously, use the string to register the type of arizona jack connector static const char *arizona_cable[] = { "Mechanical", "Microphone", "Headphone", "Line-out", }; - Newly, use the unique id to register the type of arizona jack connector static const enum extcon arizona_cable[] = { EXTCON_MECHANICAL, EXTCON_MICROPHONE, EXTCON_HEADPHONE, EXTCON_LINE_OUT, EXTCON_NONE, }; And this patch modify the prototype of extcon_{get|set}_cable_state_() which uses the 'enum extcon id' instead of 'cable_index'. Because although one more extcon drivers support USB cable, each extcon driver might has the differnt 'cable_index' for USB cable. All extcon drivers can use the unique id number for same external connector with modified extcon_{get|set}_cable_state_(). - Previously, use 'cable_index' on these functions: extcon_get_cable_state_(struct extcon_dev*, int cable_index) extcon_set_cable_state_(struct extcon_dev*, int cable_index, bool state) -Newly, use 'enum extcon id' on these functions: extcon_get_cable_state_(struct extcon_dev*, enum extcon id) extcon_set_cable_state_(struct extcon_dev*, enum extcon id, bool state) Cc: Arnd Bergmann <arnd@arndb.de> Cc: Felipe Balbi <balbi@ti.com> Signed-off-by: Chanwoo Choi <cw00.choi@samsung.com> Acked-by: Roger Quadros <rogerq@ti.com> Acked-by: Charles Keepax <ckeepax@opensource.wolfsonmicro.com> Acked-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com> Reviewed-by: Krzysztof Kozlowski <k.kozlowski@samsung.com> [arnd: Report the build break about drivers/usb/phy/phy-tahvo.c after using the unique id for external connector insteadf of string] Reported-by: Arnd Bergmann <arnd@arndb.de> [dan.carpenter: Report the build warning of extcon_{set|get}_cable_state_()] Reported-by: Dan Carpenter <dan.carpenter@oracle.com>
Diffstat (limited to 'drivers/extcon/extcon-axp288.c')
-rw-r--r--drivers/extcon/extcon-axp288.c24
1 files changed, 10 insertions, 14 deletions
diff --git a/drivers/extcon/extcon-axp288.c b/drivers/extcon/extcon-axp288.c
index 8299adb9b676..3605aa96c25a 100644
--- a/drivers/extcon/extcon-axp288.c
+++ b/drivers/extcon/extcon-axp288.c
@@ -77,10 +77,6 @@
/* IRQ enable-6 register */
#define BC12_IRQ_CFG_MASK BIT(1)
-#define AXP288_EXTCON_SLOW_CHARGER "SLOW-CHARGER"
-#define AXP288_EXTCON_DOWNSTREAM_CHARGER "CHARGE-DOWNSTREAM"
-#define AXP288_EXTCON_FAST_CHARGER "FAST-CHARGER"
-
enum axp288_extcon_reg {
AXP288_PS_STAT_REG = 0x00,
AXP288_PS_BOOT_REASON_REG = 0x02,
@@ -105,11 +101,11 @@ enum axp288_extcon_irq {
EXTCON_IRQ_END,
};
-static const char *axp288_extcon_cables[] = {
- AXP288_EXTCON_SLOW_CHARGER,
- AXP288_EXTCON_DOWNSTREAM_CHARGER,
- AXP288_EXTCON_FAST_CHARGER,
- NULL,
+static const enum extcon axp288_extcon_cables[] = {
+ EXTCON_SLOW_CHARGER,
+ EXTCON_CHARGE_DOWNSTREAM,
+ EXTCON_FAST_CHARGER,
+ EXTCON_NONE,
};
struct axp288_extcon_info {
@@ -161,7 +157,7 @@ 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 char *cable;
+ static enum extcon cable;
int ret, stat, cfg, pwr_stat;
u8 chrg_type;
bool vbus_attach = false;
@@ -196,18 +192,18 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
dev_dbg(info->dev, "sdp cable is connecetd\n");
notify_otg = true;
notify_charger = true;
- cable = AXP288_EXTCON_SLOW_CHARGER;
+ cable = EXTCON_SLOW_CHARGER;
break;
case DET_STAT_CDP:
dev_dbg(info->dev, "cdp cable is connecetd\n");
notify_otg = true;
notify_charger = true;
- cable = AXP288_EXTCON_DOWNSTREAM_CHARGER;
+ cable = EXTCON_CHARGE_DOWNSTREAM;
break;
case DET_STAT_DCP:
dev_dbg(info->dev, "dcp cable is connecetd\n");
notify_charger = true;
- cable = AXP288_EXTCON_FAST_CHARGER;
+ cable = EXTCON_FAST_CHARGER;
break;
default:
dev_warn(info->dev,
@@ -230,7 +226,7 @@ notify_otg:
}
if (notify_charger)
- extcon_set_cable_state(info->edev, cable, vbus_attach);
+ extcon_set_cable_state_(info->edev, cable, vbus_attach);
/* Clear the flags on disconnect event */
if (!vbus_attach)