Update extcon for v3.14
This patchset add new driver of extcon-max14577.c which detect various external connector and fix minor issue of extcon provider driver(extcon-arizona/palams/ gpio.c). Also, update documentation of previous 'switch' porting guide and extcon git repository url. Detailed description for patchset: - New driver of extcon-max14577.c : Add extcon-max14577.c drvier to support Maxim MUIC(Micro USB Interface Controller) which detect USB/TA/JIG/AUDIO-DOCK and additional accessory according to each resistance when connected external connector. - extcon-arizoan.c driver : Code clean to use define macro instead of hex value : Fix minor issue to reset back to our staring state : Fix race with microphone detection and removal - extcon-palmas.c driver : Fix minor issue and renaming compatible string of Devicetree - extcon-gpio.c driver : Fix bug about ordering initialization of gpio pin on probe() : Send uevent after wakeup from suspend state because some SoC haven't wakeup interrupt on suspend state. - Documentation (Documentation/extcon/porting-android-switch-class) : Fix switch class porting guide - Update extcon git repository url -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.11 (GNU/Linux) iQIcBAABAgAGBQJSzf6VAAoJEJzN3yze689TDIwP/jm0WO9sQtjJ1wK1mCIohoZQ cS1VquRbMtDLXM7ffg+4VevHbt7mfibh9n97kJGLwz9qHc2+5vtfkrGktybVSI/3 dnMNWnx77SIx6GDBEAaCfpPnGqY9KKALQKKZbBSVJtty0eN3VZC2m5sTruah9chj Az6i4tOATHQi5yahf0mxdnVu7oXmga1nkb55dcm0t0q+zxPLkuQzFwf/69fQdTol ybrT3bH55qX38QOTvov6B5YQT/xLC4BnOlHozMViFBV5mrvm0KCcC8LPP4DsdxkX 3YCjcGHmybKFByqVzMqnD3+LNJq8nAzhWMa5qVzSLBLPuJDegw0Wjdq270DtZRoB XBVcsAhfy7uUrYMFWdDyG98yBu5UTPI1dDMAzAZnNZQLcnJQInfkfCu2jARRcCGp +VsozcFCLx8wnGwOPTPv0LxGxAFTxQscIVyTWPKR2i1z3pxVshtpAC6RUO9RFZg8 NlkeeqmRdGKkZi/o9peifRKqBJTVCzapttxr6FCRLuTXq9x0f8mfkygnRUeg0tSv RAMkXRyCvVpIwiVVHbx0EVwr2znr416BvwZZu3DUrUWRi2WT6m0PdP/pqyVV7d78 HMoKAmFE2Q7Yjyo3PzdQTbirEJ3OtsKODvGGHq5qqhlBq5eBUpnWlVRkIoNFcQ+8 2+kR3h+peUQVGFWWXqam =eIUL -----END PGP SIGNATURE----- Merge tag 'extcon-next-for-3.14' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next Chanwoo writes: Update extcon for v3.14 This patchset add new driver of extcon-max14577.c which detect various external connector and fix minor issue of extcon provider driver(extcon-arizona/palams/ gpio.c). Also, update documentation of previous 'switch' porting guide and extcon git repository url. Detailed description for patchset: - New driver of extcon-max14577.c : Add extcon-max14577.c drvier to support Maxim MUIC(Micro USB Interface Controller) which detect USB/TA/JIG/AUDIO-DOCK and additional accessory according to each resistance when connected external connector. - extcon-arizoan.c driver : Code clean to use define macro instead of hex value : Fix minor issue to reset back to our staring state : Fix race with microphone detection and removal - extcon-palmas.c driver : Fix minor issue and renaming compatible string of Devicetree - extcon-gpio.c driver : Fix bug about ordering initialization of gpio pin on probe() : Send uevent after wakeup from suspend state because some SoC haven't wakeup interrupt on suspend state. - Documentation (Documentation/extcon/porting-android-switch-class) : Fix switch class porting guide - Update extcon git repository url
This commit is contained in:
commit
52cb6a205c
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@ -2,7 +2,11 @@ EXTCON FOR PALMAS/TWL CHIPS
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PALMAS USB COMPARATOR
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PALMAS USB COMPARATOR
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Required Properties:
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Required Properties:
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- compatible : Should be "ti,palmas-usb" or "ti,twl6035-usb"
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- compatible: should contain one of:
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* "ti,palmas-usb-vid".
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* "ti,twl6035-usb-vid".
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* "ti,palmas-usb" (DEPRECATED - use "ti,palmas-usb-vid").
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* "ti,twl6035-usb" (DEPRECATED - use "ti,twl6035-usb-vid").
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Optional Properties:
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Optional Properties:
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- ti,wakeup : To enable the wakeup comparator in probe
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- ti,wakeup : To enable the wakeup comparator in probe
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@ -50,7 +50,7 @@ so that they are still compatible with legacy userspace processes.
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Extcon's extended features for switch device drivers with
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Extcon's extended features for switch device drivers with
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complex features usually required magic numbers in state
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complex features usually required magic numbers in state
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value of switch_dev. With extcon, such magic numbers that
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value of switch_dev. With extcon, such magic numbers that
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support multiple cables (
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support multiple cables are no more required or supported.
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1. Define cable names at edev->supported_cable.
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1. Define cable names at edev->supported_cable.
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2. (Recommended) remove print_state callback.
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2. (Recommended) remove print_state callback.
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@ -114,11 +114,8 @@ exclusive, the two cables cannot be in ATTACHED state simulteneously.
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****** ABI Location
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****** ABI Location
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If "CONFIG_ANDROID" is enabled and "CONFIG_ANDROID_SWITCH" is
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If "CONFIG_ANDROID" is enabled, /sys/class/switch/* are created
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disabled, /sys/class/switch/* are created as symbolic links to
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as symbolic links to /sys/class/extcon/*.
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/sys/class/extcon/*. Because CONFIG_ANDROID_SWITCH creates
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/sys/class/switch directory, we disable symboling linking if
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CONFIG_ANDROID_SWITCH is enabled.
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The two files of switch class, name and state, are provided with
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The two files of switch class, name and state, are provided with
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extcon, too. When the multistate support (STEP 2 of CHAPTER 1.) is
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extcon, too. When the multistate support (STEP 2 of CHAPTER 1.) is
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@ -3330,6 +3330,7 @@ EXTERNAL CONNECTOR SUBSYSTEM (EXTCON)
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M: MyungJoo Ham <myungjoo.ham@samsung.com>
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M: MyungJoo Ham <myungjoo.ham@samsung.com>
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M: Chanwoo Choi <cw00.choi@samsung.com>
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M: Chanwoo Choi <cw00.choi@samsung.com>
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L: linux-kernel@vger.kernel.org
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L: linux-kernel@vger.kernel.org
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T: git git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon.git
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S: Maintained
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S: Maintained
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F: drivers/extcon/
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F: drivers/extcon/
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F: Documentation/extcon/
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F: Documentation/extcon/
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@ -31,6 +31,16 @@ config EXTCON_ADC_JACK
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help
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help
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Say Y here to enable extcon device driver based on ADC values.
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Say Y here to enable extcon device driver based on ADC values.
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config EXTCON_MAX14577
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tristate "MAX14577 EXTCON Support"
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depends on MFD_MAX14577
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select IRQ_DOMAIN
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select REGMAP_I2C
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help
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If you say yes here you get support for the MUIC device of
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Maxim MAX14577 PMIC. The MAX14577 MUIC is a USB port accessory
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detector and switch.
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config EXTCON_MAX77693
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config EXTCON_MAX77693
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tristate "MAX77693 EXTCON Support"
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tristate "MAX77693 EXTCON Support"
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depends on MFD_MAX77693 && INPUT
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depends on MFD_MAX77693 && INPUT
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@ -7,6 +7,7 @@ obj-$(CONFIG_OF_EXTCON) += of_extcon.o
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obj-$(CONFIG_EXTCON) += extcon-class.o
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obj-$(CONFIG_EXTCON) += extcon-class.o
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obj-$(CONFIG_EXTCON_GPIO) += extcon-gpio.o
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obj-$(CONFIG_EXTCON_GPIO) += extcon-gpio.o
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obj-$(CONFIG_EXTCON_ADC_JACK) += extcon-adc-jack.o
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obj-$(CONFIG_EXTCON_ADC_JACK) += extcon-adc-jack.o
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obj-$(CONFIG_EXTCON_MAX14577) += extcon-max14577.o
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obj-$(CONFIG_EXTCON_MAX77693) += extcon-max77693.o
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obj-$(CONFIG_EXTCON_MAX77693) += extcon-max77693.o
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obj-$(CONFIG_EXTCON_MAX8997) += extcon-max8997.o
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obj-$(CONFIG_EXTCON_MAX8997) += extcon-max8997.o
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obj-$(CONFIG_EXTCON_ARIZONA) += extcon-arizona.o
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obj-$(CONFIG_EXTCON_ARIZONA) += extcon-arizona.o
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@ -44,6 +44,15 @@
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#define HPDET_DEBOUNCE 500
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#define HPDET_DEBOUNCE 500
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#define DEFAULT_MICD_TIMEOUT 2000
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#define DEFAULT_MICD_TIMEOUT 2000
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#define MICD_LVL_1_TO_7 (ARIZONA_MICD_LVL_1 | ARIZONA_MICD_LVL_2 | \
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ARIZONA_MICD_LVL_3 | ARIZONA_MICD_LVL_4 | \
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ARIZONA_MICD_LVL_5 | ARIZONA_MICD_LVL_6 | \
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ARIZONA_MICD_LVL_7)
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#define MICD_LVL_0_TO_7 (ARIZONA_MICD_LVL_0 | MICD_LVL_1_TO_7)
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#define MICD_LVL_0_TO_8 (MICD_LVL_0_TO_7 | ARIZONA_MICD_LVL_8)
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struct arizona_extcon_info {
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struct arizona_extcon_info {
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struct device *dev;
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struct device *dev;
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struct arizona *arizona;
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struct arizona *arizona;
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@ -426,26 +435,15 @@ static int arizona_hpdet_read(struct arizona_extcon_info *info)
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}
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}
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val &= ARIZONA_HP_LVL_B_MASK;
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val &= ARIZONA_HP_LVL_B_MASK;
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/* Convert to ohms, the value is in 0.5 ohm increments */
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val /= 2;
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regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
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regmap_read(arizona->regmap, ARIZONA_HEADPHONE_DETECT_1,
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&range);
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&range);
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range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
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range = (range & ARIZONA_HP_IMPEDANCE_RANGE_MASK)
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>> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
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>> ARIZONA_HP_IMPEDANCE_RANGE_SHIFT;
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/* Skip up or down a range? */
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/* Skip up a range, or report? */
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if (range && (val < arizona_hpdet_c_ranges[range].min)) {
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range--;
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dev_dbg(arizona->dev, "Moving to HPDET range %d-%d\n",
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arizona_hpdet_c_ranges[range].min,
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arizona_hpdet_c_ranges[range].max);
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regmap_update_bits(arizona->regmap,
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ARIZONA_HEADPHONE_DETECT_1,
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ARIZONA_HP_IMPEDANCE_RANGE_MASK,
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range <<
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ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
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return -EAGAIN;
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}
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if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 &&
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if (range < ARRAY_SIZE(arizona_hpdet_c_ranges) - 1 &&
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(val >= arizona_hpdet_c_ranges[range].max)) {
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(val >= arizona_hpdet_c_ranges[range].max)) {
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range++;
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range++;
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@ -459,6 +457,12 @@ static int arizona_hpdet_read(struct arizona_extcon_info *info)
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ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
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ARIZONA_HP_IMPEDANCE_RANGE_SHIFT);
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return -EAGAIN;
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return -EAGAIN;
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}
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}
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if (range && (val < arizona_hpdet_c_ranges[range].min)) {
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dev_dbg(arizona->dev, "Reporting range boundary %d\n",
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arizona_hpdet_c_ranges[range].min);
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val = arizona_hpdet_c_ranges[range].min;
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}
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}
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}
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dev_dbg(arizona->dev, "HP impedance %d ohms\n", val);
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dev_dbg(arizona->dev, "HP impedance %d ohms\n", val);
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@ -594,9 +598,15 @@ static irqreturn_t arizona_hpdet_irq(int irq, void *data)
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dev_err(arizona->dev, "Failed to report HP/line: %d\n",
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dev_err(arizona->dev, "Failed to report HP/line: %d\n",
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ret);
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ret);
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done:
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/* Reset back to starting range */
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regmap_update_bits(arizona->regmap,
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ARIZONA_HEADPHONE_DETECT_1,
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ARIZONA_HP_IMPEDANCE_RANGE_MASK | ARIZONA_HP_POLL,
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0);
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arizona_extcon_do_magic(info, 0);
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arizona_extcon_do_magic(info, 0);
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done:
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if (id_gpio)
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if (id_gpio)
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gpio_set_value_cansleep(id_gpio, 0);
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gpio_set_value_cansleep(id_gpio, 0);
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@ -765,7 +775,20 @@ static void arizona_micd_detect(struct work_struct *work)
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mutex_lock(&info->lock);
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mutex_lock(&info->lock);
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for (i = 0; i < 10 && !(val & 0x7fc); i++) {
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/* If the cable was removed while measuring ignore the result */
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ret = extcon_get_cable_state_(&info->edev, ARIZONA_CABLE_MECHANICAL);
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if (ret < 0) {
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dev_err(arizona->dev, "Failed to check cable state: %d\n",
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ret);
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mutex_unlock(&info->lock);
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return;
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} else if (!ret) {
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dev_dbg(arizona->dev, "Ignoring MICDET for removed cable\n");
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mutex_unlock(&info->lock);
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return;
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}
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for (i = 0; i < 10 && !(val & MICD_LVL_0_TO_8); i++) {
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ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
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ret = regmap_read(arizona->regmap, ARIZONA_MIC_DETECT_3, &val);
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if (ret != 0) {
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if (ret != 0) {
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dev_err(arizona->dev,
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dev_err(arizona->dev,
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@ -784,7 +807,7 @@ static void arizona_micd_detect(struct work_struct *work)
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}
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}
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}
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}
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if (i == 10 && !(val & 0x7fc)) {
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if (i == 10 && !(val & MICD_LVL_0_TO_8)) {
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dev_err(arizona->dev, "Failed to get valid MICDET value\n");
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dev_err(arizona->dev, "Failed to get valid MICDET value\n");
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mutex_unlock(&info->lock);
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mutex_unlock(&info->lock);
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return;
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return;
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@ -798,7 +821,7 @@ static void arizona_micd_detect(struct work_struct *work)
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}
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}
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/* If we got a high impedence we should have a headset, report it. */
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/* If we got a high impedence we should have a headset, report it. */
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if (info->detecting && (val & 0x400)) {
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if (info->detecting && (val & ARIZONA_MICD_LVL_8)) {
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arizona_identify_headphone(info);
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arizona_identify_headphone(info);
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ret = extcon_update_state(&info->edev,
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ret = extcon_update_state(&info->edev,
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@ -827,7 +850,7 @@ static void arizona_micd_detect(struct work_struct *work)
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* plain headphones. If both polarities report a low
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* plain headphones. If both polarities report a low
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* impedence then give up and report headphones.
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* impedence then give up and report headphones.
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*/
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*/
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if (info->detecting && (val & 0x3f8)) {
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if (info->detecting && (val & MICD_LVL_1_TO_7)) {
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if (info->jack_flips >= info->micd_num_modes * 10) {
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if (info->jack_flips >= info->micd_num_modes * 10) {
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dev_dbg(arizona->dev, "Detected HP/line\n");
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dev_dbg(arizona->dev, "Detected HP/line\n");
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arizona_identify_headphone(info);
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arizona_identify_headphone(info);
|
||||||
|
@ -851,7 +874,7 @@ static void arizona_micd_detect(struct work_struct *work)
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* If we're still detecting and we detect a short then we've
|
* If we're still detecting and we detect a short then we've
|
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* got a headphone. Otherwise it's a button press.
|
* got a headphone. Otherwise it's a button press.
|
||||||
*/
|
*/
|
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if (val & 0x3fc) {
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if (val & MICD_LVL_0_TO_7) {
|
||||||
if (info->mic) {
|
if (info->mic) {
|
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dev_dbg(arizona->dev, "Mic button detected\n");
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dev_dbg(arizona->dev, "Mic button detected\n");
|
||||||
|
|
||||||
|
@ -1126,6 +1149,16 @@ static int arizona_extcon_probe(struct platform_device *pdev)
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
break;
|
break;
|
||||||
|
case WM5110:
|
||||||
|
switch (arizona->rev) {
|
||||||
|
case 0 ... 2:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
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info->micd_clamp = true;
|
||||||
|
info->hpdet_ip = 2;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
break;
|
||||||
default:
|
default:
|
||||||
break;
|
break;
|
||||||
}
|
}
|
||||||
|
|
|
@ -40,6 +40,7 @@ struct gpio_extcon_data {
|
||||||
int irq;
|
int irq;
|
||||||
struct delayed_work work;
|
struct delayed_work work;
|
||||||
unsigned long debounce_jiffies;
|
unsigned long debounce_jiffies;
|
||||||
|
bool check_on_resume;
|
||||||
};
|
};
|
||||||
|
|
||||||
static void gpio_extcon_work(struct work_struct *work)
|
static void gpio_extcon_work(struct work_struct *work)
|
||||||
|
@ -103,8 +104,15 @@ static int gpio_extcon_probe(struct platform_device *pdev)
|
||||||
extcon_data->gpio_active_low = pdata->gpio_active_low;
|
extcon_data->gpio_active_low = pdata->gpio_active_low;
|
||||||
extcon_data->state_on = pdata->state_on;
|
extcon_data->state_on = pdata->state_on;
|
||||||
extcon_data->state_off = pdata->state_off;
|
extcon_data->state_off = pdata->state_off;
|
||||||
|
extcon_data->check_on_resume = pdata->check_on_resume;
|
||||||
if (pdata->state_on && pdata->state_off)
|
if (pdata->state_on && pdata->state_off)
|
||||||
extcon_data->edev.print_state = extcon_gpio_print_state;
|
extcon_data->edev.print_state = extcon_gpio_print_state;
|
||||||
|
|
||||||
|
ret = devm_gpio_request_one(&pdev->dev, extcon_data->gpio, GPIOF_DIR_IN,
|
||||||
|
pdev->name);
|
||||||
|
if (ret < 0)
|
||||||
|
return ret;
|
||||||
|
|
||||||
if (pdata->debounce) {
|
if (pdata->debounce) {
|
||||||
ret = gpio_set_debounce(extcon_data->gpio,
|
ret = gpio_set_debounce(extcon_data->gpio,
|
||||||
pdata->debounce * 1000);
|
pdata->debounce * 1000);
|
||||||
|
@ -117,11 +125,6 @@ static int gpio_extcon_probe(struct platform_device *pdev)
|
||||||
if (ret < 0)
|
if (ret < 0)
|
||||||
return ret;
|
return ret;
|
||||||
|
|
||||||
ret = devm_gpio_request_one(&pdev->dev, extcon_data->gpio, GPIOF_DIR_IN,
|
|
||||||
pdev->name);
|
|
||||||
if (ret < 0)
|
|
||||||
goto err;
|
|
||||||
|
|
||||||
INIT_DELAYED_WORK(&extcon_data->work, gpio_extcon_work);
|
INIT_DELAYED_WORK(&extcon_data->work, gpio_extcon_work);
|
||||||
|
|
||||||
extcon_data->irq = gpio_to_irq(extcon_data->gpio);
|
extcon_data->irq = gpio_to_irq(extcon_data->gpio);
|
||||||
|
@ -159,12 +162,31 @@ static int gpio_extcon_remove(struct platform_device *pdev)
|
||||||
return 0;
|
return 0;
|
||||||
}
|
}
|
||||||
|
|
||||||
|
#ifdef CONFIG_PM_SLEEP
|
||||||
|
static int gpio_extcon_resume(struct device *dev)
|
||||||
|
{
|
||||||
|
struct gpio_extcon_data *extcon_data;
|
||||||
|
|
||||||
|
extcon_data = dev_get_drvdata(dev);
|
||||||
|
if (extcon_data->check_on_resume)
|
||||||
|
queue_delayed_work(system_power_efficient_wq,
|
||||||
|
&extcon_data->work, extcon_data->debounce_jiffies);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
#endif
|
||||||
|
|
||||||
|
static const struct dev_pm_ops gpio_extcon_pm_ops = {
|
||||||
|
SET_SYSTEM_SLEEP_PM_OPS(NULL, gpio_extcon_resume)
|
||||||
|
};
|
||||||
|
|
||||||
static struct platform_driver gpio_extcon_driver = {
|
static struct platform_driver gpio_extcon_driver = {
|
||||||
.probe = gpio_extcon_probe,
|
.probe = gpio_extcon_probe,
|
||||||
.remove = gpio_extcon_remove,
|
.remove = gpio_extcon_remove,
|
||||||
.driver = {
|
.driver = {
|
||||||
.name = "extcon-gpio",
|
.name = "extcon-gpio",
|
||||||
.owner = THIS_MODULE,
|
.owner = THIS_MODULE,
|
||||||
|
.pm = &gpio_extcon_pm_ops,
|
||||||
},
|
},
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
752
drivers/extcon/extcon-max14577.c
Normal file
752
drivers/extcon/extcon-max14577.c
Normal file
|
@ -0,0 +1,752 @@
|
||||||
|
/*
|
||||||
|
* extcon-max14577.c - MAX14577 extcon driver to support MAX14577 MUIC
|
||||||
|
*
|
||||||
|
* Copyright (C) 2013 Samsung Electrnoics
|
||||||
|
* Chanwoo Choi <cw00.choi@samsung.com>
|
||||||
|
*
|
||||||
|
* This program is free software; you can redistribute it and/or modify
|
||||||
|
* it under the terms of the GNU General Public License as published by
|
||||||
|
* the Free Software Foundation; either version 2 of the License, or
|
||||||
|
* (at your option) any later version.
|
||||||
|
*
|
||||||
|
* This program is distributed in the hope that it will be useful,
|
||||||
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||||
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
||||||
|
* GNU General Public License for more details.
|
||||||
|
*/
|
||||||
|
|
||||||
|
#include <linux/kernel.h>
|
||||||
|
#include <linux/module.h>
|
||||||
|
#include <linux/i2c.h>
|
||||||
|
#include <linux/interrupt.h>
|
||||||
|
#include <linux/platform_device.h>
|
||||||
|
#include <linux/mfd/max14577.h>
|
||||||
|
#include <linux/mfd/max14577-private.h>
|
||||||
|
#include <linux/extcon.h>
|
||||||
|
|
||||||
|
#define DEV_NAME "max14577-muic"
|
||||||
|
#define DELAY_MS_DEFAULT 17000 /* unit: millisecond */
|
||||||
|
|
||||||
|
enum max14577_muic_adc_debounce_time {
|
||||||
|
ADC_DEBOUNCE_TIME_5MS = 0,
|
||||||
|
ADC_DEBOUNCE_TIME_10MS,
|
||||||
|
ADC_DEBOUNCE_TIME_25MS,
|
||||||
|
ADC_DEBOUNCE_TIME_38_62MS,
|
||||||
|
};
|
||||||
|
|
||||||
|
enum max14577_muic_status {
|
||||||
|
MAX14577_MUIC_STATUS1 = 0,
|
||||||
|
MAX14577_MUIC_STATUS2 = 1,
|
||||||
|
MAX14577_MUIC_STATUS_END,
|
||||||
|
};
|
||||||
|
|
||||||
|
struct max14577_muic_info {
|
||||||
|
struct device *dev;
|
||||||
|
struct max14577 *max14577;
|
||||||
|
struct extcon_dev *edev;
|
||||||
|
int prev_cable_type;
|
||||||
|
int prev_chg_type;
|
||||||
|
u8 status[MAX14577_MUIC_STATUS_END];
|
||||||
|
|
||||||
|
bool irq_adc;
|
||||||
|
bool irq_chg;
|
||||||
|
struct work_struct irq_work;
|
||||||
|
struct mutex mutex;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Use delayed workqueue to detect cable state and then
|
||||||
|
* notify cable state to notifiee/platform through uevent.
|
||||||
|
* After completing the booting of platform, the extcon provider
|
||||||
|
* driver should notify cable state to upper layer.
|
||||||
|
*/
|
||||||
|
struct delayed_work wq_detcable;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Default usb/uart path whether UART/USB or AUX_UART/AUX_USB
|
||||||
|
* h/w path of COMP2/COMN1 on CONTROL1 register.
|
||||||
|
*/
|
||||||
|
int path_usb;
|
||||||
|
int path_uart;
|
||||||
|
};
|
||||||
|
|
||||||
|
enum max14577_muic_cable_group {
|
||||||
|
MAX14577_CABLE_GROUP_ADC = 0,
|
||||||
|
MAX14577_CABLE_GROUP_CHG,
|
||||||
|
};
|
||||||
|
|
||||||
|
/**
|
||||||
|
* struct max14577_muic_irq
|
||||||
|
* @irq: the index of irq list of MUIC device.
|
||||||
|
* @name: the name of irq.
|
||||||
|
* @virq: the virtual irq to use irq domain
|
||||||
|
*/
|
||||||
|
struct max14577_muic_irq {
|
||||||
|
unsigned int irq;
|
||||||
|
const char *name;
|
||||||
|
unsigned int virq;
|
||||||
|
};
|
||||||
|
|
||||||
|
static struct max14577_muic_irq muic_irqs[] = {
|
||||||
|
{ MAX14577_IRQ_INT1_ADC, "muic-ADC" },
|
||||||
|
{ MAX14577_IRQ_INT1_ADCLOW, "muic-ADCLOW" },
|
||||||
|
{ MAX14577_IRQ_INT1_ADCERR, "muic-ADCError" },
|
||||||
|
{ MAX14577_IRQ_INT2_CHGTYP, "muic-CHGTYP" },
|
||||||
|
{ MAX14577_IRQ_INT2_CHGDETRUN, "muic-CHGDETRUN" },
|
||||||
|
{ MAX14577_IRQ_INT2_DCDTMR, "muic-DCDTMR" },
|
||||||
|
{ MAX14577_IRQ_INT2_DBCHG, "muic-DBCHG" },
|
||||||
|
{ MAX14577_IRQ_INT2_VBVOLT, "muic-VBVOLT" },
|
||||||
|
};
|
||||||
|
|
||||||
|
/* Define supported accessory type */
|
||||||
|
enum max14577_muic_acc_type {
|
||||||
|
MAX14577_MUIC_ADC_GROUND = 0x0,
|
||||||
|
MAX14577_MUIC_ADC_SEND_END_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S1_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S2_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S3_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S4_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S5_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S6_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S7_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S8_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S9_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S10_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S11_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_REMOTE_S12_BUTTON,
|
||||||
|
MAX14577_MUIC_ADC_RESERVED_ACC_1,
|
||||||
|
MAX14577_MUIC_ADC_RESERVED_ACC_2,
|
||||||
|
MAX14577_MUIC_ADC_RESERVED_ACC_3,
|
||||||
|
MAX14577_MUIC_ADC_RESERVED_ACC_4,
|
||||||
|
MAX14577_MUIC_ADC_RESERVED_ACC_5,
|
||||||
|
MAX14577_MUIC_ADC_AUDIO_DEVICE_TYPE2,
|
||||||
|
MAX14577_MUIC_ADC_PHONE_POWERED_DEV,
|
||||||
|
MAX14577_MUIC_ADC_TTY_CONVERTER,
|
||||||
|
MAX14577_MUIC_ADC_UART_CABLE,
|
||||||
|
MAX14577_MUIC_ADC_CEA936A_TYPE1_CHG,
|
||||||
|
MAX14577_MUIC_ADC_FACTORY_MODE_USB_OFF,
|
||||||
|
MAX14577_MUIC_ADC_FACTORY_MODE_USB_ON,
|
||||||
|
MAX14577_MUIC_ADC_AV_CABLE_NOLOAD,
|
||||||
|
MAX14577_MUIC_ADC_CEA936A_TYPE2_CHG,
|
||||||
|
MAX14577_MUIC_ADC_FACTORY_MODE_UART_OFF,
|
||||||
|
MAX14577_MUIC_ADC_FACTORY_MODE_UART_ON,
|
||||||
|
MAX14577_MUIC_ADC_AUDIO_DEVICE_TYPE1, /* with Remote and Simple Ctrl */
|
||||||
|
MAX14577_MUIC_ADC_OPEN,
|
||||||
|
};
|
||||||
|
|
||||||
|
/* max14577 MUIC device support below list of accessories(external connector) */
|
||||||
|
enum {
|
||||||
|
EXTCON_CABLE_USB = 0,
|
||||||
|
EXTCON_CABLE_TA,
|
||||||
|
EXTCON_CABLE_FAST_CHARGER,
|
||||||
|
EXTCON_CABLE_SLOW_CHARGER,
|
||||||
|
EXTCON_CABLE_CHARGE_DOWNSTREAM,
|
||||||
|
EXTCON_CABLE_JIG_USB_ON,
|
||||||
|
EXTCON_CABLE_JIG_USB_OFF,
|
||||||
|
EXTCON_CABLE_JIG_UART_OFF,
|
||||||
|
EXTCON_CABLE_JIG_UART_ON,
|
||||||
|
|
||||||
|
_EXTCON_CABLE_NUM,
|
||||||
|
};
|
||||||
|
|
||||||
|
static const char *max14577_extcon_cable[] = {
|
||||||
|
[EXTCON_CABLE_USB] = "USB",
|
||||||
|
[EXTCON_CABLE_TA] = "TA",
|
||||||
|
[EXTCON_CABLE_FAST_CHARGER] = "Fast-charger",
|
||||||
|
[EXTCON_CABLE_SLOW_CHARGER] = "Slow-charger",
|
||||||
|
[EXTCON_CABLE_CHARGE_DOWNSTREAM] = "Charge-downstream",
|
||||||
|
[EXTCON_CABLE_JIG_USB_ON] = "JIG-USB-ON",
|
||||||
|
[EXTCON_CABLE_JIG_USB_OFF] = "JIG-USB-OFF",
|
||||||
|
[EXTCON_CABLE_JIG_UART_OFF] = "JIG-UART-OFF",
|
||||||
|
[EXTCON_CABLE_JIG_UART_ON] = "JIG-UART-ON",
|
||||||
|
|
||||||
|
NULL,
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* max14577_muic_set_debounce_time - Set the debounce time of ADC
|
||||||
|
* @info: the instance including private data of max14577 MUIC
|
||||||
|
* @time: the debounce time of ADC
|
||||||
|
*/
|
||||||
|
static int max14577_muic_set_debounce_time(struct max14577_muic_info *info,
|
||||||
|
enum max14577_muic_adc_debounce_time time)
|
||||||
|
{
|
||||||
|
u8 ret;
|
||||||
|
|
||||||
|
switch (time) {
|
||||||
|
case ADC_DEBOUNCE_TIME_5MS:
|
||||||
|
case ADC_DEBOUNCE_TIME_10MS:
|
||||||
|
case ADC_DEBOUNCE_TIME_25MS:
|
||||||
|
case ADC_DEBOUNCE_TIME_38_62MS:
|
||||||
|
ret = max14577_update_reg(info->max14577->regmap,
|
||||||
|
MAX14577_MUIC_REG_CONTROL3,
|
||||||
|
CTRL3_ADCDBSET_MASK,
|
||||||
|
time << CTRL3_ADCDBSET_SHIFT);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(info->dev, "failed to set ADC debounce time\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
dev_err(info->dev, "invalid ADC debounce time\n");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
};
|
||||||
|
|
||||||
|
/*
|
||||||
|
* max14577_muic_set_path - Set hardware line according to attached cable
|
||||||
|
* @info: the instance including private data of max14577 MUIC
|
||||||
|
* @value: the path according to attached cable
|
||||||
|
* @attached: the state of cable (true:attached, false:detached)
|
||||||
|
*
|
||||||
|
* The max14577 MUIC device share outside H/W line among a varity of cables
|
||||||
|
* so, this function set internal path of H/W line according to the type of
|
||||||
|
* attached cable.
|
||||||
|
*/
|
||||||
|
static int max14577_muic_set_path(struct max14577_muic_info *info,
|
||||||
|
u8 val, bool attached)
|
||||||
|
{
|
||||||
|
int ret = 0;
|
||||||
|
u8 ctrl1, ctrl2 = 0;
|
||||||
|
|
||||||
|
/* Set open state to path before changing hw path */
|
||||||
|
ret = max14577_update_reg(info->max14577->regmap,
|
||||||
|
MAX14577_MUIC_REG_CONTROL1,
|
||||||
|
CLEAR_IDBEN_MICEN_MASK, CTRL1_SW_OPEN);
|
||||||
|
if (ret < 0) {
|
||||||
|
dev_err(info->dev, "failed to update MUIC register\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (attached)
|
||||||
|
ctrl1 = val;
|
||||||
|
else
|
||||||
|
ctrl1 = CTRL1_SW_OPEN;
|
||||||
|
|
||||||
|
ret = max14577_update_reg(info->max14577->regmap,
|
||||||
|
MAX14577_MUIC_REG_CONTROL1,
|
||||||
|
CLEAR_IDBEN_MICEN_MASK, ctrl1);
|
||||||
|
if (ret < 0) {
|
||||||
|
dev_err(info->dev, "failed to update MUIC register\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (attached)
|
||||||
|
ctrl2 |= CTRL2_CPEN_MASK; /* LowPwr=0, CPEn=1 */
|
||||||
|
else
|
||||||
|
ctrl2 |= CTRL2_LOWPWR_MASK; /* LowPwr=1, CPEn=0 */
|
||||||
|
|
||||||
|
ret = max14577_update_reg(info->max14577->regmap,
|
||||||
|
MAX14577_REG_CONTROL2,
|
||||||
|
CTRL2_LOWPWR_MASK | CTRL2_CPEN_MASK, ctrl2);
|
||||||
|
if (ret < 0) {
|
||||||
|
dev_err(info->dev, "failed to update MUIC register\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
dev_dbg(info->dev,
|
||||||
|
"CONTROL1 : 0x%02x, CONTROL2 : 0x%02x, state : %s\n",
|
||||||
|
ctrl1, ctrl2, attached ? "attached" : "detached");
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
/*
|
||||||
|
* max14577_muic_get_cable_type - Return cable type and check cable state
|
||||||
|
* @info: the instance including private data of max14577 MUIC
|
||||||
|
* @group: the path according to attached cable
|
||||||
|
* @attached: store cable state and return
|
||||||
|
*
|
||||||
|
* This function check the cable state either attached or detached,
|
||||||
|
* and then divide precise type of cable according to cable group.
|
||||||
|
* - max14577_CABLE_GROUP_ADC
|
||||||
|
* - max14577_CABLE_GROUP_CHG
|
||||||
|
*/
|
||||||
|
static int max14577_muic_get_cable_type(struct max14577_muic_info *info,
|
||||||
|
enum max14577_muic_cable_group group, bool *attached)
|
||||||
|
{
|
||||||
|
int cable_type = 0;
|
||||||
|
int adc;
|
||||||
|
int chg_type;
|
||||||
|
|
||||||
|
switch (group) {
|
||||||
|
case MAX14577_CABLE_GROUP_ADC:
|
||||||
|
/*
|
||||||
|
* Read ADC value to check cable type and decide cable state
|
||||||
|
* according to cable type
|
||||||
|
*/
|
||||||
|
adc = info->status[MAX14577_MUIC_STATUS1] & STATUS1_ADC_MASK;
|
||||||
|
adc >>= STATUS1_ADC_SHIFT;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Check current cable state/cable type and store cable type
|
||||||
|
* (info->prev_cable_type) for handling cable when cable is
|
||||||
|
* detached.
|
||||||
|
*/
|
||||||
|
if (adc == MAX14577_MUIC_ADC_OPEN) {
|
||||||
|
*attached = false;
|
||||||
|
|
||||||
|
cable_type = info->prev_cable_type;
|
||||||
|
info->prev_cable_type = MAX14577_MUIC_ADC_OPEN;
|
||||||
|
} else {
|
||||||
|
*attached = true;
|
||||||
|
|
||||||
|
cable_type = info->prev_cable_type = adc;
|
||||||
|
}
|
||||||
|
break;
|
||||||
|
case MAX14577_CABLE_GROUP_CHG:
|
||||||
|
/*
|
||||||
|
* Read charger type to check cable type and decide cable state
|
||||||
|
* according to type of charger cable.
|
||||||
|
*/
|
||||||
|
chg_type = info->status[MAX14577_MUIC_STATUS2] &
|
||||||
|
STATUS2_CHGTYP_MASK;
|
||||||
|
chg_type >>= STATUS2_CHGTYP_SHIFT;
|
||||||
|
|
||||||
|
if (chg_type == MAX14577_CHARGER_TYPE_NONE) {
|
||||||
|
*attached = false;
|
||||||
|
|
||||||
|
cable_type = info->prev_chg_type;
|
||||||
|
info->prev_chg_type = MAX14577_CHARGER_TYPE_NONE;
|
||||||
|
} else {
|
||||||
|
*attached = true;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Check current cable state/cable type and store cable
|
||||||
|
* type(info->prev_chg_type) for handling cable when
|
||||||
|
* charger cable is detached.
|
||||||
|
*/
|
||||||
|
cable_type = info->prev_chg_type = chg_type;
|
||||||
|
}
|
||||||
|
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
dev_err(info->dev, "Unknown cable group (%d)\n", group);
|
||||||
|
cable_type = -EINVAL;
|
||||||
|
break;
|
||||||
|
}
|
||||||
|
|
||||||
|
return cable_type;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int max14577_muic_jig_handler(struct max14577_muic_info *info,
|
||||||
|
int cable_type, bool attached)
|
||||||
|
{
|
||||||
|
char cable_name[32];
|
||||||
|
int ret = 0;
|
||||||
|
u8 path = CTRL1_SW_OPEN;
|
||||||
|
|
||||||
|
dev_dbg(info->dev,
|
||||||
|
"external connector is %s (adc:0x%02x)\n",
|
||||||
|
attached ? "attached" : "detached", cable_type);
|
||||||
|
|
||||||
|
switch (cable_type) {
|
||||||
|
case MAX14577_MUIC_ADC_FACTORY_MODE_USB_OFF: /* ADC_JIG_USB_OFF */
|
||||||
|
/* PATH:AP_USB */
|
||||||
|
strcpy(cable_name, "JIG-USB-OFF");
|
||||||
|
path = CTRL1_SW_USB;
|
||||||
|
break;
|
||||||
|
case MAX14577_MUIC_ADC_FACTORY_MODE_USB_ON: /* ADC_JIG_USB_ON */
|
||||||
|
/* PATH:AP_USB */
|
||||||
|
strcpy(cable_name, "JIG-USB-ON");
|
||||||
|
path = CTRL1_SW_USB;
|
||||||
|
break;
|
||||||
|
case MAX14577_MUIC_ADC_FACTORY_MODE_UART_OFF: /* ADC_JIG_UART_OFF */
|
||||||
|
/* PATH:AP_UART */
|
||||||
|
strcpy(cable_name, "JIG-UART-OFF");
|
||||||
|
path = CTRL1_SW_UART;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
dev_err(info->dev, "failed to detect %s jig cable\n",
|
||||||
|
attached ? "attached" : "detached");
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
ret = max14577_muic_set_path(info, path, attached);
|
||||||
|
if (ret < 0)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
extcon_set_cable_state(info->edev, cable_name, attached);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int max14577_muic_adc_handler(struct max14577_muic_info *info)
|
||||||
|
{
|
||||||
|
int cable_type;
|
||||||
|
bool attached;
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
/* Check accessory state which is either detached or attached */
|
||||||
|
cable_type = max14577_muic_get_cable_type(info,
|
||||||
|
MAX14577_CABLE_GROUP_ADC, &attached);
|
||||||
|
|
||||||
|
dev_dbg(info->dev,
|
||||||
|
"external connector is %s (adc:0x%02x, prev_adc:0x%x)\n",
|
||||||
|
attached ? "attached" : "detached", cable_type,
|
||||||
|
info->prev_cable_type);
|
||||||
|
|
||||||
|
switch (cable_type) {
|
||||||
|
case MAX14577_MUIC_ADC_FACTORY_MODE_USB_OFF:
|
||||||
|
case MAX14577_MUIC_ADC_FACTORY_MODE_USB_ON:
|
||||||
|
case MAX14577_MUIC_ADC_FACTORY_MODE_UART_OFF:
|
||||||
|
/* JIG */
|
||||||
|
ret = max14577_muic_jig_handler(info, cable_type, attached);
|
||||||
|
if (ret < 0)
|
||||||
|
return ret;
|
||||||
|
break;
|
||||||
|
case MAX14577_MUIC_ADC_GROUND:
|
||||||
|
case MAX14577_MUIC_ADC_SEND_END_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S1_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S2_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S3_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S4_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S5_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S6_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S7_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S8_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S9_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S10_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S11_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_REMOTE_S12_BUTTON:
|
||||||
|
case MAX14577_MUIC_ADC_RESERVED_ACC_1:
|
||||||
|
case MAX14577_MUIC_ADC_RESERVED_ACC_2:
|
||||||
|
case MAX14577_MUIC_ADC_RESERVED_ACC_3:
|
||||||
|
case MAX14577_MUIC_ADC_RESERVED_ACC_4:
|
||||||
|
case MAX14577_MUIC_ADC_RESERVED_ACC_5:
|
||||||
|
case MAX14577_MUIC_ADC_AUDIO_DEVICE_TYPE2:
|
||||||
|
case MAX14577_MUIC_ADC_PHONE_POWERED_DEV:
|
||||||
|
case MAX14577_MUIC_ADC_TTY_CONVERTER:
|
||||||
|
case MAX14577_MUIC_ADC_UART_CABLE:
|
||||||
|
case MAX14577_MUIC_ADC_CEA936A_TYPE1_CHG:
|
||||||
|
case MAX14577_MUIC_ADC_AV_CABLE_NOLOAD:
|
||||||
|
case MAX14577_MUIC_ADC_CEA936A_TYPE2_CHG:
|
||||||
|
case MAX14577_MUIC_ADC_FACTORY_MODE_UART_ON:
|
||||||
|
case MAX14577_MUIC_ADC_AUDIO_DEVICE_TYPE1:
|
||||||
|
/*
|
||||||
|
* This accessory isn't used in general case if it is specially
|
||||||
|
* needed to detect additional accessory, should implement
|
||||||
|
* proper operation when this accessory is attached/detached.
|
||||||
|
*/
|
||||||
|
dev_info(info->dev,
|
||||||
|
"accessory is %s but it isn't used (adc:0x%x)\n",
|
||||||
|
attached ? "attached" : "detached", cable_type);
|
||||||
|
return -EAGAIN;
|
||||||
|
default:
|
||||||
|
dev_err(info->dev,
|
||||||
|
"failed to detect %s accessory (adc:0x%x)\n",
|
||||||
|
attached ? "attached" : "detached", cable_type);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int max14577_muic_chg_handler(struct max14577_muic_info *info)
|
||||||
|
{
|
||||||
|
int chg_type;
|
||||||
|
bool attached;
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
chg_type = max14577_muic_get_cable_type(info,
|
||||||
|
MAX14577_CABLE_GROUP_CHG, &attached);
|
||||||
|
|
||||||
|
dev_dbg(info->dev,
|
||||||
|
"external connector is %s(chg_type:0x%x, prev_chg_type:0x%x)\n",
|
||||||
|
attached ? "attached" : "detached",
|
||||||
|
chg_type, info->prev_chg_type);
|
||||||
|
|
||||||
|
switch (chg_type) {
|
||||||
|
case MAX14577_CHARGER_TYPE_USB:
|
||||||
|
/* PATH:AP_USB */
|
||||||
|
ret = max14577_muic_set_path(info, info->path_usb, attached);
|
||||||
|
if (ret < 0)
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
extcon_set_cable_state(info->edev, "USB", attached);
|
||||||
|
break;
|
||||||
|
case MAX14577_CHARGER_TYPE_DEDICATED_CHG:
|
||||||
|
extcon_set_cable_state(info->edev, "TA", attached);
|
||||||
|
break;
|
||||||
|
case MAX14577_CHARGER_TYPE_DOWNSTREAM_PORT:
|
||||||
|
extcon_set_cable_state(info->edev,
|
||||||
|
"Charge-downstream", attached);
|
||||||
|
break;
|
||||||
|
case MAX14577_CHARGER_TYPE_SPECIAL_500MA:
|
||||||
|
extcon_set_cable_state(info->edev, "Slow-charger", attached);
|
||||||
|
break;
|
||||||
|
case MAX14577_CHARGER_TYPE_SPECIAL_1A:
|
||||||
|
extcon_set_cable_state(info->edev, "Fast-charger", attached);
|
||||||
|
break;
|
||||||
|
case MAX14577_CHARGER_TYPE_NONE:
|
||||||
|
case MAX14577_CHARGER_TYPE_DEAD_BATTERY:
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
dev_err(info->dev,
|
||||||
|
"failed to detect %s accessory (chg_type:0x%x)\n",
|
||||||
|
attached ? "attached" : "detached", chg_type);
|
||||||
|
return -EINVAL;
|
||||||
|
}
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void max14577_muic_irq_work(struct work_struct *work)
|
||||||
|
{
|
||||||
|
struct max14577_muic_info *info = container_of(work,
|
||||||
|
struct max14577_muic_info, irq_work);
|
||||||
|
int ret = 0;
|
||||||
|
|
||||||
|
if (!info->edev)
|
||||||
|
return;
|
||||||
|
|
||||||
|
mutex_lock(&info->mutex);
|
||||||
|
|
||||||
|
ret = max14577_bulk_read(info->max14577->regmap,
|
||||||
|
MAX14577_MUIC_REG_STATUS1, info->status, 2);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(info->dev, "failed to read MUIC register\n");
|
||||||
|
mutex_unlock(&info->mutex);
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (info->irq_adc) {
|
||||||
|
ret = max14577_muic_adc_handler(info);
|
||||||
|
info->irq_adc = false;
|
||||||
|
}
|
||||||
|
if (info->irq_chg) {
|
||||||
|
ret = max14577_muic_chg_handler(info);
|
||||||
|
info->irq_chg = false;
|
||||||
|
}
|
||||||
|
|
||||||
|
if (ret < 0)
|
||||||
|
dev_err(info->dev, "failed to handle MUIC interrupt\n");
|
||||||
|
|
||||||
|
mutex_unlock(&info->mutex);
|
||||||
|
|
||||||
|
return;
|
||||||
|
}
|
||||||
|
|
||||||
|
static irqreturn_t max14577_muic_irq_handler(int irq, void *data)
|
||||||
|
{
|
||||||
|
struct max14577_muic_info *info = data;
|
||||||
|
int i, irq_type = -1;
|
||||||
|
|
||||||
|
/*
|
||||||
|
* We may be called multiple times for different nested IRQ-s.
|
||||||
|
* Including changes in INT1_ADC and INT2_CGHTYP at once.
|
||||||
|
* However we only need to know whether it was ADC, charger
|
||||||
|
* or both interrupts so decode IRQ and turn on proper flags.
|
||||||
|
*/
|
||||||
|
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++)
|
||||||
|
if (irq == muic_irqs[i].virq)
|
||||||
|
irq_type = muic_irqs[i].irq;
|
||||||
|
|
||||||
|
switch (irq_type) {
|
||||||
|
case MAX14577_IRQ_INT1_ADC:
|
||||||
|
case MAX14577_IRQ_INT1_ADCLOW:
|
||||||
|
case MAX14577_IRQ_INT1_ADCERR:
|
||||||
|
/* Handle all of accessory except for
|
||||||
|
type of charger accessory */
|
||||||
|
info->irq_adc = true;
|
||||||
|
break;
|
||||||
|
case MAX14577_IRQ_INT2_CHGTYP:
|
||||||
|
case MAX14577_IRQ_INT2_CHGDETRUN:
|
||||||
|
case MAX14577_IRQ_INT2_DCDTMR:
|
||||||
|
case MAX14577_IRQ_INT2_DBCHG:
|
||||||
|
case MAX14577_IRQ_INT2_VBVOLT:
|
||||||
|
/* Handle charger accessory */
|
||||||
|
info->irq_chg = true;
|
||||||
|
break;
|
||||||
|
default:
|
||||||
|
dev_err(info->dev, "muic interrupt: irq %d occurred, skipped\n",
|
||||||
|
irq_type);
|
||||||
|
return IRQ_HANDLED;
|
||||||
|
}
|
||||||
|
schedule_work(&info->irq_work);
|
||||||
|
|
||||||
|
return IRQ_HANDLED;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int max14577_muic_detect_accessory(struct max14577_muic_info *info)
|
||||||
|
{
|
||||||
|
int ret = 0;
|
||||||
|
int adc;
|
||||||
|
int chg_type;
|
||||||
|
bool attached;
|
||||||
|
|
||||||
|
mutex_lock(&info->mutex);
|
||||||
|
|
||||||
|
/* Read STATUSx register to detect accessory */
|
||||||
|
ret = max14577_bulk_read(info->max14577->regmap,
|
||||||
|
MAX14577_MUIC_REG_STATUS1, info->status, 2);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(info->dev, "failed to read MUIC register\n");
|
||||||
|
mutex_unlock(&info->mutex);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
adc = max14577_muic_get_cable_type(info, MAX14577_CABLE_GROUP_ADC,
|
||||||
|
&attached);
|
||||||
|
if (attached && adc != MAX14577_MUIC_ADC_OPEN) {
|
||||||
|
ret = max14577_muic_adc_handler(info);
|
||||||
|
if (ret < 0) {
|
||||||
|
dev_err(info->dev, "Cannot detect accessory\n");
|
||||||
|
mutex_unlock(&info->mutex);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
chg_type = max14577_muic_get_cable_type(info, MAX14577_CABLE_GROUP_CHG,
|
||||||
|
&attached);
|
||||||
|
if (attached && chg_type != MAX14577_CHARGER_TYPE_NONE) {
|
||||||
|
ret = max14577_muic_chg_handler(info);
|
||||||
|
if (ret < 0) {
|
||||||
|
dev_err(info->dev, "Cannot detect charger accessory\n");
|
||||||
|
mutex_unlock(&info->mutex);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
mutex_unlock(&info->mutex);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static void max14577_muic_detect_cable_wq(struct work_struct *work)
|
||||||
|
{
|
||||||
|
struct max14577_muic_info *info = container_of(to_delayed_work(work),
|
||||||
|
struct max14577_muic_info, wq_detcable);
|
||||||
|
|
||||||
|
max14577_muic_detect_accessory(info);
|
||||||
|
}
|
||||||
|
|
||||||
|
static int max14577_muic_probe(struct platform_device *pdev)
|
||||||
|
{
|
||||||
|
struct max14577 *max14577 = dev_get_drvdata(pdev->dev.parent);
|
||||||
|
struct max14577_muic_info *info;
|
||||||
|
int delay_jiffies;
|
||||||
|
int ret;
|
||||||
|
int i;
|
||||||
|
u8 id;
|
||||||
|
|
||||||
|
info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
|
||||||
|
if (!info) {
|
||||||
|
dev_err(&pdev->dev, "failed to allocate memory\n");
|
||||||
|
return -ENOMEM;
|
||||||
|
}
|
||||||
|
info->dev = &pdev->dev;
|
||||||
|
info->max14577 = max14577;
|
||||||
|
|
||||||
|
platform_set_drvdata(pdev, info);
|
||||||
|
mutex_init(&info->mutex);
|
||||||
|
|
||||||
|
INIT_WORK(&info->irq_work, max14577_muic_irq_work);
|
||||||
|
|
||||||
|
/* Support irq domain for max14577 MUIC device */
|
||||||
|
for (i = 0; i < ARRAY_SIZE(muic_irqs); i++) {
|
||||||
|
struct max14577_muic_irq *muic_irq = &muic_irqs[i];
|
||||||
|
unsigned int virq = 0;
|
||||||
|
|
||||||
|
virq = regmap_irq_get_virq(max14577->irq_data, muic_irq->irq);
|
||||||
|
if (!virq)
|
||||||
|
return -EINVAL;
|
||||||
|
muic_irq->virq = virq;
|
||||||
|
|
||||||
|
ret = devm_request_threaded_irq(&pdev->dev, virq, NULL,
|
||||||
|
max14577_muic_irq_handler,
|
||||||
|
IRQF_NO_SUSPEND,
|
||||||
|
muic_irq->name, info);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(&pdev->dev,
|
||||||
|
"failed: irq request (IRQ: %d,"
|
||||||
|
" error :%d)\n",
|
||||||
|
muic_irq->irq, ret);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Initialize extcon device */
|
||||||
|
info->edev = devm_kzalloc(&pdev->dev, sizeof(*info->edev), GFP_KERNEL);
|
||||||
|
if (!info->edev) {
|
||||||
|
dev_err(&pdev->dev, "failed to allocate memory for extcon\n");
|
||||||
|
return -ENOMEM;
|
||||||
|
}
|
||||||
|
info->edev->name = DEV_NAME;
|
||||||
|
info->edev->supported_cable = max14577_extcon_cable;
|
||||||
|
ret = extcon_dev_register(info->edev);
|
||||||
|
if (ret) {
|
||||||
|
dev_err(&pdev->dev, "failed to register extcon device\n");
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
/* Default h/w line path */
|
||||||
|
info->path_usb = CTRL1_SW_USB;
|
||||||
|
info->path_uart = CTRL1_SW_UART;
|
||||||
|
delay_jiffies = msecs_to_jiffies(DELAY_MS_DEFAULT);
|
||||||
|
|
||||||
|
/* Set initial path for UART */
|
||||||
|
max14577_muic_set_path(info, info->path_uart, true);
|
||||||
|
|
||||||
|
/* Check revision number of MUIC device*/
|
||||||
|
ret = max14577_read_reg(info->max14577->regmap,
|
||||||
|
MAX14577_REG_DEVICEID, &id);
|
||||||
|
if (ret < 0) {
|
||||||
|
dev_err(&pdev->dev, "failed to read revision number\n");
|
||||||
|
goto err_extcon;
|
||||||
|
}
|
||||||
|
dev_info(info->dev, "device ID : 0x%x\n", id);
|
||||||
|
|
||||||
|
/* Set ADC debounce time */
|
||||||
|
max14577_muic_set_debounce_time(info, ADC_DEBOUNCE_TIME_25MS);
|
||||||
|
|
||||||
|
/*
|
||||||
|
* Detect accessory after completing the initialization of platform
|
||||||
|
*
|
||||||
|
* - Use delayed workqueue to detect cable state and then
|
||||||
|
* notify cable state to notifiee/platform through uevent.
|
||||||
|
* After completing the booting of platform, the extcon provider
|
||||||
|
* driver should notify cable state to upper layer.
|
||||||
|
*/
|
||||||
|
INIT_DELAYED_WORK(&info->wq_detcable, max14577_muic_detect_cable_wq);
|
||||||
|
ret = queue_delayed_work(system_power_efficient_wq, &info->wq_detcable,
|
||||||
|
delay_jiffies);
|
||||||
|
if (ret < 0) {
|
||||||
|
dev_err(&pdev->dev,
|
||||||
|
"failed to schedule delayed work for cable detect\n");
|
||||||
|
goto err_extcon;
|
||||||
|
}
|
||||||
|
|
||||||
|
return ret;
|
||||||
|
|
||||||
|
err_extcon:
|
||||||
|
extcon_dev_unregister(info->edev);
|
||||||
|
return ret;
|
||||||
|
}
|
||||||
|
|
||||||
|
static int max14577_muic_remove(struct platform_device *pdev)
|
||||||
|
{
|
||||||
|
struct max14577_muic_info *info = platform_get_drvdata(pdev);
|
||||||
|
|
||||||
|
cancel_work_sync(&info->irq_work);
|
||||||
|
extcon_dev_unregister(info->edev);
|
||||||
|
|
||||||
|
return 0;
|
||||||
|
}
|
||||||
|
|
||||||
|
static struct platform_driver max14577_muic_driver = {
|
||||||
|
.driver = {
|
||||||
|
.name = DEV_NAME,
|
||||||
|
.owner = THIS_MODULE,
|
||||||
|
},
|
||||||
|
.probe = max14577_muic_probe,
|
||||||
|
.remove = max14577_muic_remove,
|
||||||
|
};
|
||||||
|
|
||||||
|
module_platform_driver(max14577_muic_driver);
|
||||||
|
|
||||||
|
MODULE_DESCRIPTION("MAXIM 14577 Extcon driver");
|
||||||
|
MODULE_AUTHOR("Chanwoo Choi <cw00.choi@samsung.com>");
|
||||||
|
MODULE_LICENSE("GPL");
|
||||||
|
MODULE_ALIAS("platform:extcon-max14577");
|
|
@ -78,20 +78,24 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
|
||||||
|
|
||||||
static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
|
static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
|
||||||
{
|
{
|
||||||
unsigned int set;
|
unsigned int set, id_src;
|
||||||
struct palmas_usb *palmas_usb = _palmas_usb;
|
struct palmas_usb *palmas_usb = _palmas_usb;
|
||||||
|
|
||||||
palmas_read(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
|
palmas_read(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
|
||||||
PALMAS_USB_ID_INT_LATCH_SET, &set);
|
PALMAS_USB_ID_INT_LATCH_SET, &set);
|
||||||
|
palmas_read(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
|
||||||
|
PALMAS_USB_ID_INT_SRC, &id_src);
|
||||||
|
|
||||||
if (set & PALMAS_USB_ID_INT_SRC_ID_GND) {
|
if ((set & PALMAS_USB_ID_INT_SRC_ID_GND) &&
|
||||||
|
(id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
|
||||||
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
|
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
|
||||||
PALMAS_USB_ID_INT_LATCH_CLR,
|
PALMAS_USB_ID_INT_LATCH_CLR,
|
||||||
PALMAS_USB_ID_INT_EN_HI_CLR_ID_GND);
|
PALMAS_USB_ID_INT_EN_HI_CLR_ID_GND);
|
||||||
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
|
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
|
||||||
extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", true);
|
extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", true);
|
||||||
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
|
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
|
||||||
} else if (set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) {
|
} else if ((set & PALMAS_USB_ID_INT_SRC_ID_FLOAT) &&
|
||||||
|
(id_src & PALMAS_USB_ID_INT_SRC_ID_FLOAT)) {
|
||||||
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
|
palmas_write(palmas_usb->palmas, PALMAS_USB_OTG_BASE,
|
||||||
PALMAS_USB_ID_INT_LATCH_CLR,
|
PALMAS_USB_ID_INT_LATCH_CLR,
|
||||||
PALMAS_USB_ID_INT_EN_HI_CLR_ID_FLOAT);
|
PALMAS_USB_ID_INT_EN_HI_CLR_ID_FLOAT);
|
||||||
|
@ -103,6 +107,11 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
|
||||||
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
|
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
|
||||||
extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", false);
|
extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", false);
|
||||||
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
|
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
|
||||||
|
} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_DISCONNECT) &&
|
||||||
|
(id_src & PALMAS_USB_ID_INT_SRC_ID_GND)) {
|
||||||
|
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
|
||||||
|
extcon_set_cable_state(&palmas_usb->edev, "USB-HOST", true);
|
||||||
|
dev_info(palmas_usb->dev, " USB-HOST cable is attached\n");
|
||||||
}
|
}
|
||||||
|
|
||||||
return IRQ_HANDLED;
|
return IRQ_HANDLED;
|
||||||
|
@ -269,7 +278,9 @@ static const struct dev_pm_ops palmas_pm_ops = {
|
||||||
|
|
||||||
static struct of_device_id of_palmas_match_tbl[] = {
|
static struct of_device_id of_palmas_match_tbl[] = {
|
||||||
{ .compatible = "ti,palmas-usb", },
|
{ .compatible = "ti,palmas-usb", },
|
||||||
|
{ .compatible = "ti,palmas-usb-vid", },
|
||||||
{ .compatible = "ti,twl6035-usb", },
|
{ .compatible = "ti,twl6035-usb", },
|
||||||
|
{ .compatible = "ti,twl6035-usb-vid", },
|
||||||
{ /* end */ }
|
{ /* end */ }
|
||||||
};
|
};
|
||||||
|
|
||||||
|
|
|
@ -51,6 +51,7 @@ struct gpio_extcon_platform_data {
|
||||||
/* if NULL, "0" or "1" will be printed */
|
/* if NULL, "0" or "1" will be printed */
|
||||||
const char *state_on;
|
const char *state_on;
|
||||||
const char *state_off;
|
const char *state_off;
|
||||||
|
bool check_on_resume;
|
||||||
};
|
};
|
||||||
|
|
||||||
#endif /* __EXTCON_GPIO_H__ */
|
#endif /* __EXTCON_GPIO_H__ */
|
||||||
|
|
|
@ -2196,6 +2196,15 @@
|
||||||
/*
|
/*
|
||||||
* R677 (0x2A5) - Mic Detect 3
|
* R677 (0x2A5) - Mic Detect 3
|
||||||
*/
|
*/
|
||||||
|
#define ARIZONA_MICD_LVL_0 0x0004 /* MICD_LVL - [2] */
|
||||||
|
#define ARIZONA_MICD_LVL_1 0x0008 /* MICD_LVL - [3] */
|
||||||
|
#define ARIZONA_MICD_LVL_2 0x0010 /* MICD_LVL - [4] */
|
||||||
|
#define ARIZONA_MICD_LVL_3 0x0020 /* MICD_LVL - [5] */
|
||||||
|
#define ARIZONA_MICD_LVL_4 0x0040 /* MICD_LVL - [6] */
|
||||||
|
#define ARIZONA_MICD_LVL_5 0x0080 /* MICD_LVL - [7] */
|
||||||
|
#define ARIZONA_MICD_LVL_6 0x0100 /* MICD_LVL - [8] */
|
||||||
|
#define ARIZONA_MICD_LVL_7 0x0200 /* MICD_LVL - [9] */
|
||||||
|
#define ARIZONA_MICD_LVL_8 0x0400 /* MICD_LVL - [10] */
|
||||||
#define ARIZONA_MICD_LVL_MASK 0x07FC /* MICD_LVL - [10:2] */
|
#define ARIZONA_MICD_LVL_MASK 0x07FC /* MICD_LVL - [10:2] */
|
||||||
#define ARIZONA_MICD_LVL_SHIFT 2 /* MICD_LVL - [10:2] */
|
#define ARIZONA_MICD_LVL_SHIFT 2 /* MICD_LVL - [10:2] */
|
||||||
#define ARIZONA_MICD_LVL_WIDTH 9 /* MICD_LVL - [10:2] */
|
#define ARIZONA_MICD_LVL_WIDTH 9 /* MICD_LVL - [10:2] */
|
||||||
|
|
Loading…
Reference in a new issue