On Gigabyte AM4 boards, pinctrl-amd generates tons of irq, makes the system not able to boot properly.
Don't load the module until Gigabyte fixes the issue. BugLink: https://bugs.launchpad.net/bugs/1671360 Signed-off-by: Kai-Heng Feng <kai.heng.f...@canonical.com> --- drivers/pinctrl/pinctrl-amd.c | 25 +++++++++++++++++++++++++ 1 file changed, 25 insertions(+) diff --git a/drivers/pinctrl/pinctrl-amd.c b/drivers/pinctrl/pinctrl-amd.c index 1482d132fbb8..5b015d3552b8 100644 --- a/drivers/pinctrl/pinctrl-amd.c +++ b/drivers/pinctrl/pinctrl-amd.c @@ -29,6 +29,7 @@ #include <linux/interrupt.h> #include <linux/list.h> #include <linux/bitops.h> +#include <linux/dmi.h> #include <linux/pinctrl/pinconf.h> #include <linux/pinctrl/pinconf-generic.h> @@ -739,6 +740,26 @@ static struct pinctrl_desc amd_pinctrl_desc = { .owner = THIS_MODULE, }; +static bool amd_gpio_is_gigabyte_am4(void) +{ + const char *board_name; + + if (!dmi_match(DMI_BOARD_VENDOR, "Gigabyte Technology Co., Ltd.")) + return false; + + board_name = dmi_get_system_info(DMI_BOARD_NAME); + + if (!board_name) + return false; + + if (strstr(board_name, "A320") || + strstr(board_name, "B350") || + strstr(board_name, "X370")) + return true; + + return false; +} + static int amd_gpio_probe(struct platform_device *pdev) { int ret = 0; @@ -746,6 +767,10 @@ static int amd_gpio_probe(struct platform_device *pdev) struct resource *res; struct amd_gpio *gpio_dev; + /* Don't load this module if it's a Gigabyte AM4 board */ + if (amd_gpio_is_gigabyte_am4()) + return -ENODEV; + gpio_dev = devm_kzalloc(&pdev->dev, sizeof(struct amd_gpio), GFP_KERNEL); if (!gpio_dev) -- 2.13.0
