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authorLucas Stach <l.stach@pengutronix.de>2019-10-29 11:42:35 +0000
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2019-11-05 18:35:30 +0100
commitc33c585f1b3a99d53920bdac614aca461d8db06f (patch)
tree22e51dfb51c0ae095b182a64d60fa1b8fa130893 /drivers/nvmem
parent885ce72a09d072a3d75231c68e27f21c956c9f46 (diff)
downloadlinux-c33c585f1b3a99d53920bdac614aca461d8db06f.tar.bz2
nvmem: imx-ocotp: reset error status on probe
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>
Diffstat (limited to 'drivers/nvmem')
-rw-r--r--drivers/nvmem/imx-ocotp.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/nvmem/imx-ocotp.c b/drivers/nvmem/imx-ocotp.c
index dff2f3c357f5..fc40555ca4cd 100644
--- a/drivers/nvmem/imx-ocotp.c
+++ b/drivers/nvmem/imx-ocotp.c
@@ -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;