diff options
| -rw-r--r-- | drivers/hid/hid-mcp2221.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/drivers/hid/hid-mcp2221.c b/drivers/hid/hid-mcp2221.c index 64dcedbcc0fc..5c643f3c8c97 100644 --- a/drivers/hid/hid-mcp2221.c +++ b/drivers/hid/hid-mcp2221.c @@ -19,8 +19,15 @@ #include <linux/gpio/driver.h> #include <linux/iio/iio.h> #include <linux/minmax.h> +#include <linux/moduleparam.h> #include "hid-ids.h" +static bool gpio_mode_enforce; + +module_param(gpio_mode_enforce, bool, 0644); +MODULE_PARM_DESC(gpio_mode_enforce, + "Enfore GPIO mode for GP0 thru GP3 (default: false, will be used for IIO)"); + /* Commands codes in a raw output report */ enum { MCP2221_I2C_WR_DATA = 0x90, @@ -648,7 +655,7 @@ static int mcp2221_check_gpio_pinfunc(struct mcp2221 *mcp) int needgpiofix = 0; int ret; - if (IS_ENABLED(CONFIG_IIO)) + if (IS_ENABLED(CONFIG_IIO) && !gpio_mode_enforce) return 0; ret = mcp_gpio_read_sram(mcp); @@ -1043,7 +1050,8 @@ static void mcp2221_remove(struct hid_device *hdev) #if IS_REACHABLE(CONFIG_IIO) struct mcp2221 *mcp = hid_get_drvdata(hdev); - cancel_delayed_work_sync(&mcp->init_work); + if (!gpio_mode_enforce) + cancel_delayed_work_sync(&mcp->init_work); #endif } @@ -1317,8 +1325,10 @@ static int mcp2221_probe(struct hid_device *hdev, #endif #if IS_REACHABLE(CONFIG_IIO) - INIT_DELAYED_WORK(&mcp->init_work, mcp_init_work); - schedule_delayed_work(&mcp->init_work, msecs_to_jiffies(100)); + if (!gpio_mode_enforce) { + INIT_DELAYED_WORK(&mcp->init_work, mcp_init_work); + schedule_delayed_work(&mcp->init_work, msecs_to_jiffies(100)); + } #endif return 0; |