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 Signed-off-by: Yang Yingliang yangyingliang@huawei.com --- 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 afb429a..926d9cc 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;