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https://github.com/edk2-porting/linux-next.git
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Update extcon for 4.11
Detailed description for this pull request: 1. Add the new extcon driver. - Intel INT3496 ACPI USB id detection driver detects whether EXTCON_USB_HOST is attached or detached. (extcon-intel-int3496.c) 2. Add the new type of external connector. - EXTCON_CHG_USB_PD (USB Power Delivery) provides the increased power more than 7.5W to device with larger power demand. 3. Add the description for EXTCON_CHG_USB_(SDP|ACA|SLOW|FAST) - EXTCON_CHG_USB_SDP should always appear together with EXTCON_USB - EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST. - EXTCON_CHG_USB_SLOW can provide at least 500mA of current at 5V - EXTCON_CHG_USB_FAST can provide at least 1A of current at 5V. 4. Modify the connector name of EXTCON_USB_HOST - "USB_HOST" -> "USB-HOST" 5. Update the extcon core - Move the private extcon structure into driver/extcon directory. The 'struct extcon_dev' should be only handled by extcon core to prevent the direct access and to maintain the integrity of it. - Remove the ambigous operation of extcon_register_notifier() in case of the 'extcon_dev' instance is NULL. The user of extcon_register_notifier() have to specify the correct instance of the provider extcon driver. 6. Update the extcon drivers and fix the minor issues - Update the extcon-axp288 driver to remove the unncessary code. - Add pinctrl operation during suspend mode to extcon-usb-gpio driver. - Clean up the extcon-arizona/adc-jack driver. - Use the dev_dbg() for debug messsage on extcon-palmas driver. - Return the error code on failure of extcon_sync() -----BEGIN PGP SIGNATURE----- Version: GnuPG v1 iQIcBAABAgAGBQJYiEQUAAoJEJzN3yze689T/yoQALU9fN6cW0CsBpa9cOp5IitY jQhssvEYbYwXBge1Wcq/CpYbBVuwq4FGUAlUN3W5HEAoCt7zFAbBK4GGrN0zby5p qAyEXTgExEBOvP0JayCfsFQGWZNuhj2mEm3xPA5jLdoVazT/SOrexja8nmQCyJxq 7bHgpfaqN0Kvo7rB8V0vnQsqSGvB1CZRBU419IkcvJF+3rjUGh1asJnjxUdysI/u V9C+lNEf75UiM7fh9LTggoboFVUtHCpY06W+MpoxArlcKNk2cPgbMYPsyF9z+DUJ 814UyCrxzSAEXj/yLkuSgMSBBvnP1hz8arxFTi0GHoid/R6FNSQGGBtYtwLq0vkO A21HfLleuXDkx8vYxPK9g6bzX/Yv4dpQWymY8HU/gtyhYpmGKRmHBvxhAI903w2W caTF+AsSlIs1IR7L6wpnku6YNhhHyJK4eyx5qiX78dn3mzEFk9k9v+M/U2ZEgDKL rKKz+bueFEGlvYO8vqwUsTrgHSMHnM/jVvHjzEXHfnu1ND2P/vab3ss1iOGBUDhl aW8+YK9nM/kgLQ/qr5OR33hSRa9gZyQViKsD0HYy91FSKED6Eh8/XpGZoWRJSqWs MIV7MkgH9yAiU5R0qDhXREe5PQ7dU9NdWI+2tAZWy5UNhVrMOab48Ih6xhA8c2XQ 7HhWLdYnalAA/y+MaVK2 =o+zC -----END PGP SIGNATURE----- Merge tag 'extcon-next-for-4.11' of git://git.kernel.org/pub/scm/linux/kernel/git/chanwoo/extcon into char-misc-next Chanwoo writes: Update extcon for 4.11 Detailed description for this pull request: 1. Add the new extcon driver. - Intel INT3496 ACPI USB id detection driver detects whether EXTCON_USB_HOST is attached or detached. (extcon-intel-int3496.c) 2. Add the new type of external connector. - EXTCON_CHG_USB_PD (USB Power Delivery) provides the increased power more than 7.5W to device with larger power demand. 3. Add the description for EXTCON_CHG_USB_(SDP|ACA|SLOW|FAST) - EXTCON_CHG_USB_SDP should always appear together with EXTCON_USB - EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST. - EXTCON_CHG_USB_SLOW can provide at least 500mA of current at 5V - EXTCON_CHG_USB_FAST can provide at least 1A of current at 5V. 4. Modify the connector name of EXTCON_USB_HOST - "USB_HOST" -> "USB-HOST" 5. Update the extcon core - Move the private extcon structure into driver/extcon directory. The 'struct extcon_dev' should be only handled by extcon core to prevent the direct access and to maintain the integrity of it. - Remove the ambigous operation of extcon_register_notifier() in case of the 'extcon_dev' instance is NULL. The user of extcon_register_notifier() have to specify the correct instance of the provider extcon driver. 6. Update the extcon drivers and fix the minor issues - Update the extcon-axp288 driver to remove the unncessary code. - Add pinctrl operation during suspend mode to extcon-usb-gpio driver. - Clean up the extcon-arizona/adc-jack driver. - Use the dev_dbg() for debug messsage on extcon-palmas driver. - Return the error code on failure of extcon_sync()
This commit is contained in:
Greg Kroah-Hartman
commit
36bebcff6f
22
Documentation/extcon/intel-int3496.txt
Normal file
22
Documentation/extcon/intel-int3496.txt
Normal file
@ -0,0 +1,22 @@
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Intel INT3496 ACPI device extcon driver documentation
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-----------------------------------------------------
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The Intel INT3496 ACPI device extcon driver is a driver for ACPI
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devices with an acpi-id of INT3496, such as found for example on
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Intel Baytrail and Cherrytrail tablets.
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This ACPI device describes how the OS can read the id-pin of the devices'
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USB-otg port, as well as how it optionally can enable Vbus output on the
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otg port and how it can optionally control the muxing of the data pins
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between an USB host and an USB peripheral controller.
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The ACPI devices exposes this functionality by returning an array with up
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to 3 gpio descriptors from its ACPI _CRS (Current Resource Settings) call:
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Index 0: The input gpio for the id-pin, this is always present and valid
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Index 1: The output gpio for enabling Vbus output from the device to the otg
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port, write 1 to enable the Vbus output (this gpio descriptor may
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be absent or invalid)
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Index 2: The output gpio for muxing of the data pins between the USB host and
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the USB peripheral controller, write 1 to mux to the peripheral
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controller
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@ -42,6 +42,16 @@ config EXTCON_GPIO
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Say Y here to enable GPIO based extcon support. Note that GPIO
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extcon supports single state per extcon instance.
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config EXTCON_INTEL_INT3496
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tristate "Intel INT3496 ACPI device extcon driver"
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depends on GPIOLIB && ACPI
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help
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Say Y here to enable extcon support for USB OTG ports controlled by
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an Intel INT3496 ACPI device.
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This ACPI device is typically found on Intel Baytrail or Cherrytrail
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based tablets, or other Baytrail / Cherrytrail devices.
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config EXTCON_MAX14577
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tristate "Maxim MAX14577/77836 EXTCON Support"
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depends on MFD_MAX14577
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@ -8,6 +8,7 @@ obj-$(CONFIG_EXTCON_ADC_JACK) += extcon-adc-jack.o
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obj-$(CONFIG_EXTCON_ARIZONA) += extcon-arizona.o
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obj-$(CONFIG_EXTCON_AXP288) += extcon-axp288.o
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obj-$(CONFIG_EXTCON_GPIO) += extcon-gpio.o
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obj-$(CONFIG_EXTCON_INTEL_INT3496) += extcon-intel-int3496.o
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obj-$(CONFIG_EXTCON_MAX14577) += extcon-max14577.o
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obj-$(CONFIG_EXTCON_MAX3355) += extcon-max3355.o
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obj-$(CONFIG_EXTCON_MAX77693) += extcon-max77693.o
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@ -14,7 +14,7 @@
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* GNU General Public License for more details.
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*/
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#include <linux/extcon.h>
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#include "extcon.h"
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static int devm_extcon_dev_match(struct device *dev, void *res, void *data)
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{
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@ -67,7 +67,7 @@ static void adc_jack_handler(struct work_struct *work)
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ret = iio_read_channel_raw(data->chan, &adc_val);
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if (ret < 0) {
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dev_err(&data->edev->dev, "read channel() error: %d\n", ret);
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dev_err(data->dev, "read channel() error: %d\n", ret);
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return;
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}
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@ -236,12 +236,8 @@ static void arizona_extcon_set_mode(struct arizona_extcon_info *info, int mode)
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mode %= info->micd_num_modes;
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if (arizona->pdata.micd_pol_gpio > 0)
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gpio_set_value_cansleep(arizona->pdata.micd_pol_gpio,
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info->micd_modes[mode].gpio);
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else
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gpiod_set_value_cansleep(info->micd_pol_gpio,
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info->micd_modes[mode].gpio);
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gpiod_set_value_cansleep(info->micd_pol_gpio,
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info->micd_modes[mode].gpio);
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regmap_update_bits(arizona->regmap, ARIZONA_MIC_DETECT_1,
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ARIZONA_MICD_BIAS_SRC_MASK,
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@ -1412,21 +1408,21 @@ static int arizona_extcon_probe(struct platform_device *pdev)
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regmap_update_bits(arizona->regmap, ARIZONA_GP_SWITCH_1,
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ARIZONA_SW1_MODE_MASK, arizona->pdata.gpsw);
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if (arizona->pdata.micd_pol_gpio > 0) {
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if (pdata->micd_pol_gpio > 0) {
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if (info->micd_modes[0].gpio)
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mode = GPIOF_OUT_INIT_HIGH;
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else
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mode = GPIOF_OUT_INIT_LOW;
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ret = devm_gpio_request_one(&pdev->dev,
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arizona->pdata.micd_pol_gpio,
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mode,
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"MICD polarity");
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ret = devm_gpio_request_one(&pdev->dev, pdata->micd_pol_gpio,
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mode, "MICD polarity");
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if (ret != 0) {
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dev_err(arizona->dev, "Failed to request GPIO%d: %d\n",
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arizona->pdata.micd_pol_gpio, ret);
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pdata->micd_pol_gpio, ret);
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goto err_register;
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}
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info->micd_pol_gpio = gpio_to_desc(pdata->micd_pol_gpio);
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} else {
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if (info->micd_modes[0].gpio)
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mode = GPIOD_OUT_HIGH;
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@ -21,7 +21,6 @@
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#include <linux/interrupt.h>
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#include <linux/platform_device.h>
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#include <linux/property.h>
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#include <linux/usb/phy.h>
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#include <linux/notifier.h>
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#include <linux/extcon.h>
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#include <linux/regmap.h>
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@ -71,12 +70,6 @@
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#define DET_STAT_CDP 2
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#define DET_STAT_DCP 3
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/* IRQ enable-1 register */
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#define PWRSRC_IRQ_CFG_MASK (BIT(4)|BIT(3)|BIT(2))
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/* IRQ enable-6 register */
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#define BC12_IRQ_CFG_MASK BIT(1)
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enum axp288_extcon_reg {
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AXP288_PS_STAT_REG = 0x00,
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AXP288_PS_BOOT_REASON_REG = 0x02,
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@ -84,8 +77,6 @@ enum axp288_extcon_reg {
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AXP288_BC_VBUS_CNTL_REG = 0x2d,
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AXP288_BC_USB_STAT_REG = 0x2e,
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AXP288_BC_DET_STAT_REG = 0x2f,
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AXP288_PWRSRC_IRQ_CFG_REG = 0x40,
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AXP288_BC12_IRQ_CFG_REG = 0x45,
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};
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enum axp288_mux_select {
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@ -105,6 +96,7 @@ static const unsigned int axp288_extcon_cables[] = {
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EXTCON_CHG_USB_SDP,
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EXTCON_CHG_USB_CDP,
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EXTCON_CHG_USB_DCP,
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EXTCON_USB,
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EXTCON_NONE,
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};
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@ -112,11 +104,11 @@ struct axp288_extcon_info {
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struct device *dev;
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struct regmap *regmap;
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struct regmap_irq_chip_data *regmap_irqc;
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struct axp288_extcon_pdata *pdata;
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struct gpio_desc *gpio_mux_cntl;
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int irq[EXTCON_IRQ_END];
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struct extcon_dev *edev;
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struct notifier_block extcon_nb;
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struct usb_phy *otg;
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unsigned int previous_cable;
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};
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/* Power up/down reason string array */
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@ -156,10 +148,9 @@ static void axp288_extcon_log_rsi(struct axp288_extcon_info *info)
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static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
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{
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static bool notify_otg, notify_charger;
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static unsigned int cable;
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int ret, stat, cfg, pwr_stat;
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u8 chrg_type;
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unsigned int cable = info->previous_cable;
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bool vbus_attach = false;
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ret = regmap_read(info->regmap, AXP288_PS_STAT_REG, &pwr_stat);
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@ -168,9 +159,9 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
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return ret;
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}
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vbus_attach = (pwr_stat & PS_STAT_VBUS_PRESENT);
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vbus_attach = (pwr_stat & PS_STAT_VBUS_VALID);
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if (!vbus_attach)
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goto notify_otg;
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goto no_vbus;
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/* Check charger detection completion status */
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ret = regmap_read(info->regmap, AXP288_BC_GLOBAL_REG, &cfg);
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@ -190,19 +181,14 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
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switch (chrg_type) {
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case DET_STAT_SDP:
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dev_dbg(info->dev, "sdp cable is connected\n");
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notify_otg = true;
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notify_charger = true;
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cable = EXTCON_CHG_USB_SDP;
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break;
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case DET_STAT_CDP:
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dev_dbg(info->dev, "cdp cable is connected\n");
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notify_otg = true;
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notify_charger = true;
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cable = EXTCON_CHG_USB_CDP;
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break;
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case DET_STAT_DCP:
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dev_dbg(info->dev, "dcp cable is connected\n");
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notify_charger = true;
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cable = EXTCON_CHG_USB_DCP;
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break;
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default:
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@ -210,27 +196,28 @@ static int axp288_handle_chrg_det_event(struct axp288_extcon_info *info)
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"disconnect or unknown or ID event\n");
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}
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notify_otg:
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if (notify_otg) {
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/*
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* If VBUS is absent Connect D+/D- lines to PMIC for BC
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* detection. Else connect them to SOC for USB communication.
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*/
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if (info->pdata->gpio_mux_cntl)
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gpiod_set_value(info->pdata->gpio_mux_cntl,
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vbus_attach ? EXTCON_GPIO_MUX_SEL_SOC
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: EXTCON_GPIO_MUX_SEL_PMIC);
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no_vbus:
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/*
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* If VBUS is absent Connect D+/D- lines to PMIC for BC
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* detection. Else connect them to SOC for USB communication.
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*/
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if (info->gpio_mux_cntl)
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gpiod_set_value(info->gpio_mux_cntl,
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vbus_attach ? EXTCON_GPIO_MUX_SEL_SOC
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: EXTCON_GPIO_MUX_SEL_PMIC);
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atomic_notifier_call_chain(&info->otg->notifier,
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vbus_attach ? USB_EVENT_VBUS : USB_EVENT_NONE, NULL);
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}
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extcon_set_state_sync(info->edev, info->previous_cable, false);
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if (info->previous_cable == EXTCON_CHG_USB_SDP)
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extcon_set_state_sync(info->edev, EXTCON_USB, false);
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if (notify_charger)
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if (vbus_attach) {
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extcon_set_state_sync(info->edev, cable, vbus_attach);
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if (cable == EXTCON_CHG_USB_SDP)
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extcon_set_state_sync(info->edev, EXTCON_USB,
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vbus_attach);
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/* Clear the flags on disconnect event */
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if (!vbus_attach)
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notify_otg = notify_charger = false;
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info->previous_cable = cable;
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}
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return 0;
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@ -253,15 +240,10 @@ static irqreturn_t axp288_extcon_isr(int irq, void *data)
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return IRQ_HANDLED;
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}
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static void axp288_extcon_enable_irq(struct axp288_extcon_info *info)
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static void axp288_extcon_enable(struct axp288_extcon_info *info)
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{
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/* Unmask VBUS interrupt */
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regmap_write(info->regmap, AXP288_PWRSRC_IRQ_CFG_REG,
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PWRSRC_IRQ_CFG_MASK);
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regmap_update_bits(info->regmap, AXP288_BC_GLOBAL_REG,
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BC_GLOBAL_RUN, 0);
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/* Unmask the BC1.2 complete interrupts */
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regmap_write(info->regmap, AXP288_BC12_IRQ_CFG_REG, BC12_IRQ_CFG_MASK);
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/* Enable the charger detection logic */
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regmap_update_bits(info->regmap, AXP288_BC_GLOBAL_REG,
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BC_GLOBAL_RUN, BC_GLOBAL_RUN);
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@ -271,6 +253,7 @@ static int axp288_extcon_probe(struct platform_device *pdev)
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{
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struct axp288_extcon_info *info;
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struct axp20x_dev *axp20x = dev_get_drvdata(pdev->dev.parent);
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struct axp288_extcon_pdata *pdata = pdev->dev.platform_data;
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int ret, i, pirq, gpio;
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info = devm_kzalloc(&pdev->dev, sizeof(*info), GFP_KERNEL);
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@ -280,15 +263,10 @@ static int axp288_extcon_probe(struct platform_device *pdev)
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info->dev = &pdev->dev;
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info->regmap = axp20x->regmap;
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info->regmap_irqc = axp20x->regmap_irqc;
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info->pdata = pdev->dev.platform_data;
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info->previous_cable = EXTCON_NONE;
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if (pdata)
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info->gpio_mux_cntl = pdata->gpio_mux_cntl;
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if (!info->pdata) {
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/* Try ACPI provided pdata via device properties */
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if (!device_property_present(&pdev->dev,
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"axp288_extcon_data\n"))
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dev_err(&pdev->dev, "failed to get platform data\n");
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return -ENODEV;
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}
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platform_set_drvdata(pdev, info);
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axp288_extcon_log_rsi(info);
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@ -308,23 +286,16 @@ static int axp288_extcon_probe(struct platform_device *pdev)
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return ret;
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}
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/* Get otg transceiver phy */
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info->otg = devm_usb_get_phy(&pdev->dev, USB_PHY_TYPE_USB2);
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if (IS_ERR(info->otg)) {
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dev_err(&pdev->dev, "failed to get otg transceiver\n");
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return PTR_ERR(info->otg);
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}
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/* Set up gpio control for USB Mux */
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if (info->pdata->gpio_mux_cntl) {
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gpio = desc_to_gpio(info->pdata->gpio_mux_cntl);
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if (info->gpio_mux_cntl) {
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gpio = desc_to_gpio(info->gpio_mux_cntl);
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ret = devm_gpio_request(&pdev->dev, gpio, "USB_MUX");
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if (ret < 0) {
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dev_err(&pdev->dev,
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"failed to request the gpio=%d\n", gpio);
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return ret;
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}
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gpiod_direction_output(info->pdata->gpio_mux_cntl,
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gpiod_direction_output(info->gpio_mux_cntl,
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EXTCON_GPIO_MUX_SEL_PMIC);
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}
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|
||||
@ -349,14 +320,21 @@ static int axp288_extcon_probe(struct platform_device *pdev)
|
||||
}
|
||||
}
|
||||
|
||||
/* Enable interrupts */
|
||||
axp288_extcon_enable_irq(info);
|
||||
/* Start charger cable type detection */
|
||||
axp288_extcon_enable(info);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static const struct platform_device_id axp288_extcon_table[] = {
|
||||
{ .name = "axp288_extcon" },
|
||||
{},
|
||||
};
|
||||
MODULE_DEVICE_TABLE(platform, axp288_extcon_table);
|
||||
|
||||
static struct platform_driver axp288_extcon_driver = {
|
||||
.probe = axp288_extcon_probe,
|
||||
.id_table = axp288_extcon_table,
|
||||
.driver = {
|
||||
.name = "axp288_extcon",
|
||||
},
|
||||
|
||||
179
drivers/extcon/extcon-intel-int3496.c
Normal file
179
drivers/extcon/extcon-intel-int3496.c
Normal file
@ -0,0 +1,179 @@
|
||||
/*
|
||||
* Intel INT3496 ACPI device extcon driver
|
||||
*
|
||||
* Copyright (c) 2016 Hans de Goede <hdegoede@redhat.com>
|
||||
*
|
||||
* Based on android x86 kernel code which is:
|
||||
*
|
||||
* Copyright (c) 2014, Intel Corporation.
|
||||
* Author: David Cohen <david.a.cohen@linux.intel.com>
|
||||
*
|
||||
* This program is free software; you can redistribute it and/or modify
|
||||
* it under the terms of the GNU General Public License version 2 as
|
||||
* published by the Free Software Foundation.
|
||||
*
|
||||
* 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/acpi.h>
|
||||
#include <linux/extcon.h>
|
||||
#include <linux/gpio.h>
|
||||
#include <linux/interrupt.h>
|
||||
#include <linux/module.h>
|
||||
#include <linux/platform_device.h>
|
||||
|
||||
#define INT3496_GPIO_USB_ID 0
|
||||
#define INT3496_GPIO_VBUS_EN 1
|
||||
#define INT3496_GPIO_USB_MUX 2
|
||||
#define DEBOUNCE_TIME msecs_to_jiffies(50)
|
||||
|
||||
struct int3496_data {
|
||||
struct device *dev;
|
||||
struct extcon_dev *edev;
|
||||
struct delayed_work work;
|
||||
struct gpio_desc *gpio_usb_id;
|
||||
struct gpio_desc *gpio_vbus_en;
|
||||
struct gpio_desc *gpio_usb_mux;
|
||||
int usb_id_irq;
|
||||
};
|
||||
|
||||
static const unsigned int int3496_cable[] = {
|
||||
EXTCON_USB_HOST,
|
||||
EXTCON_NONE,
|
||||
};
|
||||
|
||||
static void int3496_do_usb_id(struct work_struct *work)
|
||||
{
|
||||
struct int3496_data *data =
|
||||
container_of(work, struct int3496_data, work.work);
|
||||
int id = gpiod_get_value_cansleep(data->gpio_usb_id);
|
||||
|
||||
/* id == 1: PERIPHERAL, id == 0: HOST */
|
||||
dev_dbg(data->dev, "Connected %s cable\n", id ? "PERIPHERAL" : "HOST");
|
||||
|
||||
/*
|
||||
* Peripheral: set USB mux to peripheral and disable VBUS
|
||||
* Host: set USB mux to host and enable VBUS
|
||||
*/
|
||||
if (!IS_ERR(data->gpio_usb_mux))
|
||||
gpiod_direction_output(data->gpio_usb_mux, id);
|
||||
|
||||
if (!IS_ERR(data->gpio_vbus_en))
|
||||
gpiod_direction_output(data->gpio_vbus_en, !id);
|
||||
|
||||
extcon_set_state_sync(data->edev, EXTCON_USB_HOST, !id);
|
||||
}
|
||||
|
||||
static irqreturn_t int3496_thread_isr(int irq, void *priv)
|
||||
{
|
||||
struct int3496_data *data = priv;
|
||||
|
||||
/* Let the pin settle before processing it */
|
||||
mod_delayed_work(system_wq, &data->work, DEBOUNCE_TIME);
|
||||
|
||||
return IRQ_HANDLED;
|
||||
}
|
||||
|
||||
static int int3496_probe(struct platform_device *pdev)
|
||||
{
|
||||
struct device *dev = &pdev->dev;
|
||||
struct int3496_data *data;
|
||||
int ret;
|
||||
|
||||
data = devm_kzalloc(dev, sizeof(*data), GFP_KERNEL);
|
||||
if (!data)
|
||||
return -ENOMEM;
|
||||
|
||||
data->dev = dev;
|
||||
INIT_DELAYED_WORK(&data->work, int3496_do_usb_id);
|
||||
|
||||
data->gpio_usb_id = devm_gpiod_get_index(dev, "id",
|
||||
INT3496_GPIO_USB_ID,
|
||||
GPIOD_IN);
|
||||
if (IS_ERR(data->gpio_usb_id)) {
|
||||
ret = PTR_ERR(data->gpio_usb_id);
|
||||
dev_err(dev, "can't request USB ID GPIO: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
data->usb_id_irq = gpiod_to_irq(data->gpio_usb_id);
|
||||
if (data->usb_id_irq <= 0) {
|
||||
dev_err(dev, "can't get USB ID IRQ: %d\n", data->usb_id_irq);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
data->gpio_vbus_en = devm_gpiod_get_index(dev, "vbus en",
|
||||
INT3496_GPIO_VBUS_EN,
|
||||
GPIOD_ASIS);
|
||||
if (IS_ERR(data->gpio_vbus_en))
|
||||
dev_info(dev, "can't request VBUS EN GPIO\n");
|
||||
|
||||
data->gpio_usb_mux = devm_gpiod_get_index(dev, "usb mux",
|
||||
INT3496_GPIO_USB_MUX,
|
||||
GPIOD_ASIS);
|
||||
if (IS_ERR(data->gpio_usb_mux))
|
||||
dev_info(dev, "can't request USB MUX GPIO\n");
|
||||
|
||||
/* register extcon device */
|
||||
data->edev = devm_extcon_dev_allocate(dev, int3496_cable);
|
||||
if (IS_ERR(data->edev))
|
||||
return -ENOMEM;
|
||||
|
||||
ret = devm_extcon_dev_register(dev, data->edev);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "can't register extcon device: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
ret = devm_request_threaded_irq(dev, data->usb_id_irq,
|
||||
NULL, int3496_thread_isr,
|
||||
IRQF_SHARED | IRQF_ONESHOT |
|
||||
IRQF_TRIGGER_RISING |
|
||||
IRQF_TRIGGER_FALLING,
|
||||
dev_name(dev), data);
|
||||
if (ret < 0) {
|
||||
dev_err(dev, "can't request IRQ for USB ID GPIO: %d\n", ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
/* queue initial processing of id-pin */
|
||||
queue_delayed_work(system_wq, &data->work, 0);
|
||||
|
||||
platform_set_drvdata(pdev, data);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static int int3496_remove(struct platform_device *pdev)
|
||||
{
|
||||
struct int3496_data *data = platform_get_drvdata(pdev);
|
||||
|
||||
devm_free_irq(&pdev->dev, data->usb_id_irq, data);
|
||||
cancel_delayed_work_sync(&data->work);
|
||||
|
||||
return 0;
|
||||
}
|
||||
|
||||
static struct acpi_device_id int3496_acpi_match[] = {
|
||||
{ "INT3496" },
|
||||
{ }
|
||||
};
|
||||
MODULE_DEVICE_TABLE(acpi, int3496_acpi_match);
|
||||
|
||||
static struct platform_driver int3496_driver = {
|
||||
.driver = {
|
||||
.name = "intel-int3496",
|
||||
.acpi_match_table = int3496_acpi_match,
|
||||
},
|
||||
.probe = int3496_probe,
|
||||
.remove = int3496_remove,
|
||||
};
|
||||
|
||||
module_platform_driver(int3496_driver);
|
||||
|
||||
MODULE_AUTHOR("Hans de Goede <hdegoede@redhat.com>");
|
||||
MODULE_DESCRIPTION("Intel INT3496 ACPI device extcon driver");
|
||||
MODULE_LICENSE("GPL");
|
||||
@ -531,8 +531,10 @@ static int max14577_parse_irq(struct max14577_muic_info *info, int 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 */
|
||||
/*
|
||||
* Handle all of accessory except for
|
||||
* type of charger accessory.
|
||||
*/
|
||||
info->irq_adc = true;
|
||||
return 1;
|
||||
case MAX14577_IRQ_INT2_CHGTYP:
|
||||
|
||||
@ -188,8 +188,10 @@ enum max77693_muic_acc_type {
|
||||
MAX77693_MUIC_ADC_AUDIO_MODE_REMOTE,
|
||||
MAX77693_MUIC_ADC_OPEN,
|
||||
|
||||
/* The below accessories have same ADC value so ADCLow and
|
||||
ADC1K bit is used to separate specific accessory */
|
||||
/*
|
||||
* The below accessories have same ADC value so ADCLow and
|
||||
* ADC1K bit is used to separate specific accessory.
|
||||
*/
|
||||
/* ADC|VBVolot|ADCLow|ADC1K| */
|
||||
MAX77693_MUIC_GND_USB_HOST = 0x100, /* 0x0| 0| 0| 0| */
|
||||
MAX77693_MUIC_GND_USB_HOST_VB = 0x104, /* 0x0| 1| 0| 0| */
|
||||
@ -970,8 +972,10 @@ static void max77693_muic_irq_work(struct work_struct *work)
|
||||
case MAX77693_MUIC_IRQ_INT1_ADC_LOW:
|
||||
case MAX77693_MUIC_IRQ_INT1_ADC_ERR:
|
||||
case MAX77693_MUIC_IRQ_INT1_ADC1K:
|
||||
/* Handle all of accessory except for
|
||||
type of charger accessory */
|
||||
/*
|
||||
* Handle all of accessory except for
|
||||
* type of charger accessory.
|
||||
*/
|
||||
ret = max77693_muic_adc_handler(info);
|
||||
break;
|
||||
case MAX77693_MUIC_IRQ_INT2_CHGTYP:
|
||||
|
||||
@ -97,8 +97,10 @@ enum max77843_muic_accessory_type {
|
||||
MAX77843_MUIC_ADC_AUDIO_DEVICE_TYPE1,
|
||||
MAX77843_MUIC_ADC_OPEN,
|
||||
|
||||
/* The blow accessories should check
|
||||
not only ADC value but also ADC1K and VBVolt value. */
|
||||
/*
|
||||
* The below accessories should check
|
||||
* not only ADC value but also ADC1K and VBVolt value.
|
||||
*/
|
||||
/* Offset|ADC1K|VBVolt| */
|
||||
MAX77843_MUIC_GND_USB_HOST = 0x100, /* 0x1| 0| 0| */
|
||||
MAX77843_MUIC_GND_USB_HOST_VB = 0x101, /* 0x1| 0| 1| */
|
||||
@ -265,16 +267,20 @@ static int max77843_muic_get_cable_type(struct max77843_muic_info *info,
|
||||
/* Check GROUND accessory with charger cable */
|
||||
if (adc == MAX77843_MUIC_ADC_GROUND) {
|
||||
if (chg_type == MAX77843_MUIC_CHG_NONE) {
|
||||
/* The following state when charger cable is
|
||||
/*
|
||||
* The following state when charger cable is
|
||||
* disconnected but the GROUND accessory still
|
||||
* connected */
|
||||
* connected.
|
||||
*/
|
||||
*attached = false;
|
||||
cable_type = info->prev_chg_type;
|
||||
info->prev_chg_type = MAX77843_MUIC_CHG_NONE;
|
||||
} else {
|
||||
|
||||
/* The following state when charger cable is
|
||||
* connected on the GROUND accessory */
|
||||
/*
|
||||
* The following state when charger cable is
|
||||
* connected on the GROUND accessory.
|
||||
*/
|
||||
*attached = true;
|
||||
cable_type = MAX77843_MUIC_CHG_GND;
|
||||
info->prev_chg_type = MAX77843_MUIC_CHG_GND;
|
||||
@ -299,11 +305,13 @@ static int max77843_muic_get_cable_type(struct max77843_muic_info *info,
|
||||
} else {
|
||||
*attached = true;
|
||||
|
||||
/* Offset|ADC1K|VBVolt|
|
||||
/*
|
||||
* Offset|ADC1K|VBVolt|
|
||||
* 0x1| 0| 0| USB-HOST
|
||||
* 0x1| 0| 1| USB-HOST with VB
|
||||
* 0x1| 1| 0| MHL
|
||||
* 0x1| 1| 1| MHL with VB */
|
||||
* 0x1| 1| 1| MHL with VB
|
||||
*/
|
||||
/* Get ADC1K register bit */
|
||||
gnd_type = (info->status[MAX77843_MUIC_STATUS1] &
|
||||
MAX77843_MUIC_STATUS1_ADC1K_MASK);
|
||||
|
||||
@ -62,7 +62,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
|
||||
if (palmas_usb->linkstat != PALMAS_USB_STATE_VBUS) {
|
||||
palmas_usb->linkstat = PALMAS_USB_STATE_VBUS;
|
||||
extcon_set_state_sync(edev, EXTCON_USB, true);
|
||||
dev_info(palmas_usb->dev, "USB cable is attached\n");
|
||||
dev_dbg(palmas_usb->dev, "USB cable is attached\n");
|
||||
} else {
|
||||
dev_dbg(palmas_usb->dev,
|
||||
"Spurious connect event detected\n");
|
||||
@ -71,7 +71,7 @@ static irqreturn_t palmas_vbus_irq_handler(int irq, void *_palmas_usb)
|
||||
if (palmas_usb->linkstat == PALMAS_USB_STATE_VBUS) {
|
||||
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
|
||||
extcon_set_state_sync(edev, EXTCON_USB, false);
|
||||
dev_info(palmas_usb->dev, "USB cable is detached\n");
|
||||
dev_dbg(palmas_usb->dev, "USB cable is detached\n");
|
||||
} else {
|
||||
dev_dbg(palmas_usb->dev,
|
||||
"Spurious disconnect event detected\n");
|
||||
@ -99,7 +99,7 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
|
||||
PALMAS_USB_ID_INT_EN_HI_CLR_ID_GND);
|
||||
palmas_usb->linkstat = PALMAS_USB_STATE_ID;
|
||||
extcon_set_state_sync(edev, EXTCON_USB_HOST, true);
|
||||
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
|
||||
dev_dbg(palmas_usb->dev, "USB-HOST cable is attached\n");
|
||||
} 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,
|
||||
@ -107,17 +107,17 @@ static irqreturn_t palmas_id_irq_handler(int irq, void *_palmas_usb)
|
||||
PALMAS_USB_ID_INT_EN_HI_CLR_ID_FLOAT);
|
||||
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
|
||||
extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
|
||||
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
|
||||
dev_dbg(palmas_usb->dev, "USB-HOST cable is detached\n");
|
||||
} else if ((palmas_usb->linkstat == PALMAS_USB_STATE_ID) &&
|
||||
(!(set & PALMAS_USB_ID_INT_SRC_ID_GND))) {
|
||||
palmas_usb->linkstat = PALMAS_USB_STATE_DISCONNECT;
|
||||
extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
|
||||
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
|
||||
dev_dbg(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_state_sync(edev, EXTCON_USB_HOST, true);
|
||||
dev_info(palmas_usb->dev, " USB-HOST cable is attached\n");
|
||||
dev_dbg(palmas_usb->dev, " USB-HOST cable is attached\n");
|
||||
}
|
||||
|
||||
return IRQ_HANDLED;
|
||||
@ -138,10 +138,10 @@ static void palmas_gpio_id_detect(struct work_struct *work)
|
||||
|
||||
if (id) {
|
||||
extcon_set_state_sync(edev, EXTCON_USB_HOST, false);
|
||||
dev_info(palmas_usb->dev, "USB-HOST cable is detached\n");
|
||||
dev_dbg(palmas_usb->dev, "USB-HOST cable is detached\n");
|
||||
} else {
|
||||
extcon_set_state_sync(edev, EXTCON_USB_HOST, true);
|
||||
dev_info(palmas_usb->dev, "USB-HOST cable is attached\n");
|
||||
dev_dbg(palmas_usb->dev, "USB-HOST cable is attached\n");
|
||||
}
|
||||
}
|
||||
|
||||
@ -190,6 +190,11 @@ static int palmas_usb_probe(struct platform_device *pdev)
|
||||
struct palmas_usb *palmas_usb;
|
||||
int status;
|
||||
|
||||
if (!palmas) {
|
||||
dev_err(&pdev->dev, "failed to get valid parent\n");
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
palmas_usb = devm_kzalloc(&pdev->dev, sizeof(*palmas_usb), GFP_KERNEL);
|
||||
if (!palmas_usb)
|
||||
return -ENOMEM;
|
||||
|
||||
@ -142,8 +142,10 @@ enum rt8973a_muic_acc_type {
|
||||
RT8973A_MUIC_ADC_UNKNOWN_ACC_5,
|
||||
RT8973A_MUIC_ADC_OPEN = 0x1f,
|
||||
|
||||
/* The below accessories has same ADC value (0x1f).
|
||||
So, Device type1 is used to separate specific accessory. */
|
||||
/*
|
||||
* The below accessories has same ADC value (0x1f).
|
||||
* So, Device type1 is used to separate specific accessory.
|
||||
*/
|
||||
/* |---------|--ADC| */
|
||||
/* | [7:5]|[4:0]| */
|
||||
RT8973A_MUIC_ADC_USB = 0x3f, /* | 001|11111| */
|
||||
|
||||
@ -135,8 +135,10 @@ enum sm5502_muic_acc_type {
|
||||
SM5502_MUIC_ADC_AUDIO_TYPE1,
|
||||
SM5502_MUIC_ADC_OPEN = 0x1f,
|
||||
|
||||
/* The below accessories have same ADC value (0x1f or 0x1e).
|
||||
So, Device type1 is used to separate specific accessory. */
|
||||
/*
|
||||
* The below accessories have same ADC value (0x1f or 0x1e).
|
||||
* So, Device type1 is used to separate specific accessory.
|
||||
*/
|
||||
/* |---------|--ADC| */
|
||||
/* | [7:5]|[4:0]| */
|
||||
SM5502_MUIC_ADC_AUDIO_TYPE1_FULL_REMOTE = 0x3e, /* | 001|11110| */
|
||||
|
||||
@ -27,6 +27,7 @@
|
||||
#include <linux/slab.h>
|
||||
#include <linux/workqueue.h>
|
||||
#include <linux/acpi.h>
|
||||
#include <linux/pinctrl/consumer.h>
|
||||
|
||||
#define USB_GPIO_DEBOUNCE_MS 20 /* ms */
|
||||
|
||||
@ -245,6 +246,9 @@ static int usb_extcon_suspend(struct device *dev)
|
||||
if (info->vbus_gpiod)
|
||||
disable_irq(info->vbus_irq);
|
||||
|
||||
if (!device_may_wakeup(dev))
|
||||
pinctrl_pm_select_sleep_state(dev);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
@ -253,6 +257,9 @@ static int usb_extcon_resume(struct device *dev)
|
||||
struct usb_extcon_info *info = dev_get_drvdata(dev);
|
||||
int ret = 0;
|
||||
|
||||
if (!device_may_wakeup(dev))
|
||||
pinctrl_pm_select_default_state(dev);
|
||||
|
||||
if (device_may_wakeup(dev)) {
|
||||
if (info->id_gpiod) {
|
||||
ret = disable_irq_wake(info->id_irq);
|
||||
|
||||
@ -30,11 +30,12 @@
|
||||
#include <linux/device.h>
|
||||
#include <linux/fs.h>
|
||||
#include <linux/err.h>
|
||||
#include <linux/extcon.h>
|
||||
#include <linux/of.h>
|
||||
#include <linux/slab.h>
|
||||
#include <linux/sysfs.h>
|
||||
|
||||
#include "extcon.h"
|
||||
|
||||
#define SUPPORTED_CABLE_MAX 32
|
||||
#define CABLE_NAME_MAX 30
|
||||
|
||||
@ -59,7 +60,7 @@ struct __extcon_info {
|
||||
[EXTCON_USB_HOST] = {
|
||||
.type = EXTCON_TYPE_USB,
|
||||
.id = EXTCON_USB_HOST,
|
||||
.name = "USB_HOST",
|
||||
.name = "USB-HOST",
|
||||
},
|
||||
|
||||
/* Charging external connector */
|
||||
@ -98,6 +99,11 @@ struct __extcon_info {
|
||||
.id = EXTCON_CHG_WPT,
|
||||
.name = "WPT",
|
||||
},
|
||||
[EXTCON_CHG_USB_PD] = {
|
||||
.type = EXTCON_TYPE_CHG | EXTCON_TYPE_USB,
|
||||
.id = EXTCON_CHG_USB_PD,
|
||||
.name = "PD",
|
||||
},
|
||||
|
||||
/* Jack external connector */
|
||||
[EXTCON_JACK_MICROPHONE] = {
|
||||
@ -906,35 +912,16 @@ int extcon_register_notifier(struct extcon_dev *edev, unsigned int id,
|
||||
unsigned long flags;
|
||||
int ret, idx = -EINVAL;
|
||||
|
||||
if (!nb)
|
||||
if (!edev || !nb)
|
||||
return -EINVAL;
|
||||
|
||||
if (edev) {
|
||||
idx = find_cable_index_by_id(edev, id);
|
||||
if (idx < 0)
|
||||
return idx;
|
||||
idx = find_cable_index_by_id(edev, id);
|
||||
if (idx < 0)
|
||||
return idx;
|
||||
|
||||
spin_lock_irqsave(&edev->lock, flags);
|
||||
ret = raw_notifier_chain_register(&edev->nh[idx], nb);
|
||||
spin_unlock_irqrestore(&edev->lock, flags);
|
||||
} else {
|
||||
struct extcon_dev *extd;
|
||||
|
||||
mutex_lock(&extcon_dev_list_lock);
|
||||
list_for_each_entry(extd, &extcon_dev_list, entry) {
|
||||
idx = find_cable_index_by_id(extd, id);
|
||||
if (idx >= 0)
|
||||
break;
|
||||
}
|
||||
mutex_unlock(&extcon_dev_list_lock);
|
||||
|
||||
if (idx >= 0) {
|
||||
edev = extd;
|
||||
return extcon_register_notifier(extd, id, nb);
|
||||
} else {
|
||||
ret = -ENODEV;
|
||||
}
|
||||
}
|
||||
spin_lock_irqsave(&edev->lock, flags);
|
||||
ret = raw_notifier_chain_register(&edev->nh[idx], nb);
|
||||
spin_unlock_irqrestore(&edev->lock, flags);
|
||||
|
||||
return ret;
|
||||
}
|
||||
|
||||
62
drivers/extcon/extcon.h
Normal file
62
drivers/extcon/extcon.h
Normal file
@ -0,0 +1,62 @@
|
||||
#ifndef __LINUX_EXTCON_INTERNAL_H__
|
||||
#define __LINUX_EXTCON_INTERNAL_H__
|
||||
|
||||
#include <linux/extcon.h>
|
||||
|
||||
/**
|
||||
* struct extcon_dev - An extcon device represents one external connector.
|
||||
* @name: The name of this extcon device. Parent device name is
|
||||
* used if NULL.
|
||||
* @supported_cable: Array of supported cable names ending with EXTCON_NONE.
|
||||
* If supported_cable is NULL, cable name related APIs
|
||||
* are disabled.
|
||||
* @mutually_exclusive: Array of mutually exclusive set of cables that cannot
|
||||
* be attached simultaneously. The array should be
|
||||
* ending with NULL or be NULL (no mutually exclusive
|
||||
* cables). For example, if it is { 0x7, 0x30, 0}, then,
|
||||
* {0, 1}, {0, 1, 2}, {0, 2}, {1, 2}, or {4, 5} cannot
|
||||
* be attached simulataneously. {0x7, 0} is equivalent to
|
||||
* {0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
|
||||
* can be no simultaneous connections.
|
||||
* @dev: Device of this extcon.
|
||||
* @state: Attach/detach state of this extcon. Do not provide at
|
||||
* register-time.
|
||||
* @nh: Notifier for the state change events from this extcon
|
||||
* @entry: To support list of extcon devices so that users can
|
||||
* search for extcon devices based on the extcon name.
|
||||
* @lock:
|
||||
* @max_supported: Internal value to store the number of cables.
|
||||
* @extcon_dev_type: Device_type struct to provide attribute_groups
|
||||
* customized for each extcon device.
|
||||
* @cables: Sysfs subdirectories. Each represents one cable.
|
||||
*
|
||||
* In most cases, users only need to provide "User initializing data" of
|
||||
* this struct when registering an extcon. In some exceptional cases,
|
||||
* optional callbacks may be needed. However, the values in "internal data"
|
||||
* are overwritten by register function.
|
||||
*/
|
||||
struct extcon_dev {
|
||||
/* Optional user initializing data */
|
||||
const char *name;
|
||||
const unsigned int *supported_cable;
|
||||
const u32 *mutually_exclusive;
|
||||
|
||||
/* Internal data. Please do not set. */
|
||||
struct device dev;
|
||||
struct raw_notifier_head *nh;
|
||||
struct list_head entry;
|
||||
int max_supported;
|
||||
spinlock_t lock; /* could be called by irq handler */
|
||||
u32 state;
|
||||
|
||||
/* /sys/class/extcon/.../cable.n/... */
|
||||
struct device_type extcon_dev_type;
|
||||
struct extcon_cable *cables;
|
||||
|
||||
/* /sys/class/extcon/.../mutually_exclusive/... */
|
||||
struct attribute_group attr_g_muex;
|
||||
struct attribute **attrs_muex;
|
||||
struct device_attribute *d_attrs_muex;
|
||||
};
|
||||
|
||||
#endif /* __LINUX_EXTCON_INTERNAL_H__ */
|
||||
@ -46,7 +46,18 @@
|
||||
#define EXTCON_USB 1
|
||||
#define EXTCON_USB_HOST 2
|
||||
|
||||
/* Charging external connector */
|
||||
/*
|
||||
* Charging external connector
|
||||
*
|
||||
* When one SDP charger connector was reported, we should also report
|
||||
* the USB connector, which means EXTCON_CHG_USB_SDP should always
|
||||
* appear together with EXTCON_USB. The same as ACA charger connector,
|
||||
* EXTCON_CHG_USB_ACA would normally appear with EXTCON_USB_HOST.
|
||||
*
|
||||
* The EXTCON_CHG_USB_SLOW connector can provide at least 500mA of
|
||||
* current at 5V. The EXTCON_CHG_USB_FAST connector can provide at
|
||||
* least 1A of current at 5V.
|
||||
*/
|
||||
#define EXTCON_CHG_USB_SDP 5 /* Standard Downstream Port */
|
||||
#define EXTCON_CHG_USB_DCP 6 /* Dedicated Charging Port */
|
||||
#define EXTCON_CHG_USB_CDP 7 /* Charging Downstream Port */
|
||||
@ -54,6 +65,7 @@
|
||||
#define EXTCON_CHG_USB_FAST 9
|
||||
#define EXTCON_CHG_USB_SLOW 10
|
||||
#define EXTCON_CHG_WPT 11 /* Wireless Power Transfer */
|
||||
#define EXTCON_CHG_USB_PD 12 /* USB Power Delivery */
|
||||
|
||||
/* Jack external connector */
|
||||
#define EXTCON_JACK_MICROPHONE 20
|
||||
@ -160,62 +172,7 @@ union extcon_property_value {
|
||||
};
|
||||
|
||||
struct extcon_cable;
|
||||
|
||||
/**
|
||||
* struct extcon_dev - An extcon device represents one external connector.
|
||||
* @name: The name of this extcon device. Parent device name is
|
||||
* used if NULL.
|
||||
* @supported_cable: Array of supported cable names ending with EXTCON_NONE.
|
||||
* If supported_cable is NULL, cable name related APIs
|
||||
* are disabled.
|
||||
* @mutually_exclusive: Array of mutually exclusive set of cables that cannot
|
||||
* be attached simultaneously. The array should be
|
||||
* ending with NULL or be NULL (no mutually exclusive
|
||||
* cables). For example, if it is { 0x7, 0x30, 0}, then,
|
||||
* {0, 1}, {0, 1, 2}, {0, 2}, {1, 2}, or {4, 5} cannot
|
||||
* be attached simulataneously. {0x7, 0} is equivalent to
|
||||
* {0x3, 0x6, 0x5, 0}. If it is {0xFFFFFFFF, 0}, there
|
||||
* can be no simultaneous connections.
|
||||
* @dev: Device of this extcon.
|
||||
* @state: Attach/detach state of this extcon. Do not provide at
|
||||
* register-time.
|
||||
* @nh: Notifier for the state change events from this extcon
|
||||
* @entry: To support list of extcon devices so that users can
|
||||
* search for extcon devices based on the extcon name.
|
||||
* @lock:
|
||||
* @max_supported: Internal value to store the number of cables.
|
||||
* @extcon_dev_type: Device_type struct to provide attribute_groups
|
||||
* customized for each extcon device.
|
||||
* @cables: Sysfs subdirectories. Each represents one cable.
|
||||
*
|
||||
* In most cases, users only need to provide "User initializing data" of
|
||||
* this struct when registering an extcon. In some exceptional cases,
|
||||
* optional callbacks may be needed. However, the values in "internal data"
|
||||
* are overwritten by register function.
|
||||
*/
|
||||
struct extcon_dev {
|
||||
/* Optional user initializing data */
|
||||
const char *name;
|
||||
const unsigned int *supported_cable;
|
||||
const u32 *mutually_exclusive;
|
||||
|
||||
/* Internal data. Please do not set. */
|
||||
struct device dev;
|
||||
struct raw_notifier_head *nh;
|
||||
struct list_head entry;
|
||||
int max_supported;
|
||||
spinlock_t lock; /* could be called by irq handler */
|
||||
u32 state;
|
||||
|
||||
/* /sys/class/extcon/.../cable.n/... */
|
||||
struct device_type extcon_dev_type;
|
||||
struct extcon_cable *cables;
|
||||
|
||||
/* /sys/class/extcon/.../mutually_exclusive/... */
|
||||
struct attribute_group attr_g_muex;
|
||||
struct attribute **attrs_muex;
|
||||
struct device_attribute *d_attrs_muex;
|
||||
};
|
||||
struct extcon_dev;
|
||||
|
||||
#if IS_ENABLED(CONFIG_EXTCON)
|
||||
|
||||
|
||||
@ -59,7 +59,7 @@ struct adc_jack_pdata {
|
||||
const char *name;
|
||||
const char *consumer_channel;
|
||||
|
||||
const enum extcon *cable_names;
|
||||
const unsigned int *cable_names;
|
||||
|
||||
/* The last entry's state should be 0 */
|
||||
struct adc_jack_cond *adc_conditions;
|
||||
|
||||
Loading…
Reference in New Issue
Block a user