tree 237f253de8dd3f8a6bb2e047930bd8e84fd07290
parent 4fbd8d194f06c8a3fd2af1ce560ddb31f7ec8323
author Stefan Agner <stefan@agner.ch> 1515333949 +0100
committer Mark Brown <broonie@kernel.org> 1515410347 +0000
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spi: imx: do not access registers while clocks disabled

Since clocks are disabled except during message transfer clocks
are also disabled when spi_imx_remove gets called. Accessing
registers leads to a freeeze at least on a i.MX 6ULL. Enable
clocks before disabling accessing the MXC_CSPICTRL register.

Fixes: 9e556dcc55774 ("spi: spi-imx: only enable the clocks when we start to transfer a message")
Signed-off-by: Stefan Agner <stefan@agner.ch>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org