On 12/10/19 10:31 PM, Sasha Levin wrote:
From: Lucas Stach l.stach@pengutronix.de
[ Upstream commit c33c585f1b3a99d53920bdac614aca461d8db06f ]
If software running before the OCOTP driver is loaded left the controller with the error status pending, the driver will never be able to complete the read timing setup. Reset the error status on probe to make sure the controller is in usable state.
Signed-off-by: Lucas Stach l.stach@pengutronix.de Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org Link: https://lore.kernel.org/r/20191029114240.14905-6-srinivas.kandagatla@linaro.... Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org Signed-off-by: Sasha Levin sashal@kernel.org
drivers/nvmem/imx-ocotp.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c index afb429a417fe0..926d9cc080cf4 100644 --- a/drivers/nvmem/imx-ocotp.c +++ b/drivers/nvmem/imx-ocotp.c @@ -466,6 +466,10 @@ static int imx_ocotp_probe(struct platform_device *pdev) if (IS_ERR(priv->clk)) return PTR_ERR(priv->clk);
- clk_prepare_enable(priv->clk);
- imx_ocotp_clr_err_if_set(priv->base);
- clk_disable_unprepare(priv->clk);
- priv->params = of_device_get_match_data(&pdev->dev); imx_ocotp_nvmem_config.size = 4 * priv->params->nregs; imx_ocotp_nvmem_config.dev = dev;
Hi,
This patch makes kernel 4.19.{92,93} hang at boot on my i.MX6ULL based board. It hanks at
[ 3.730078] cpu cpu0: Linked as a consumer to regulator.2 [ 3.737760] cpu cpu0: Linked as a consumer to regulator.3
Full boot log is here: https://pastebin.com/TS8EFxkr
The config is imx_v6_v7_defconfig.
Reverting it makes the kernels boot again.
Regards,