The first variants of Armada XP SoCs (A0 stepping) have issues related to the i2c controller which prevent to use the offload mechanism and lead to a kernel hang during boot.
The driver now checks if offload the mechanism is tagged as broken and enable it in the opposite case. Cc: [email protected] Signed-off-by: Gregory CLEMENT <[email protected]> --- drivers/i2c/busses/i2c-mv64xxx.c | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/drivers/i2c/busses/i2c-mv64xxx.c b/drivers/i2c/busses/i2c-mv64xxx.c index 8be7e42aa4de..de819daa19e6 100644 --- a/drivers/i2c/busses/i2c-mv64xxx.c +++ b/drivers/i2c/busses/i2c-mv64xxx.c @@ -779,8 +779,10 @@ mv64xxx_of_config(struct mv64xxx_i2c_data *drv_data, * Transaction Generator support and the errata fix. */ if (of_device_is_compatible(np, "marvell,mv78230-i2c")) { - drv_data->offload_enabled = true; drv_data->errata_delay = true; + + if (!of_find_property(np, "offload-broken", NULL)) + drv_data->offload_enabled = true; } out: -- 1.8.1.2 -- To unsubscribe from this list: send the line "unsubscribe linux-i2c" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html
