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nvmem: imx-ocotp: reset error status on probe

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[ 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.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Lucas Stach 2019-10-29 11:42:35 +00:00 • committed by Greg Kroah-Hartman
commit 052644a373
1 changed files with 4 additions and 0 deletions
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4
drivers/nvmem/imx-ocotp.c
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@ -521,6 +521,10 @@ 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;