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dmaengine: at_xdmac: don't restore unsaved status 

save_gs is supposed to save the channel status in order to be restored at
resume time but it is never updated and is always 0. Anyway, the channel
status is updated in the per channel loop later in the resume function.

Signed-off-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Nicolas Ferre <nicolas.ferre@atmel.com>
Acked-by: Ludovic Desroches <ludovic.desroches@atmel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
This commit is contained in:
Alexandre Belloni 2016-12-01 11:49:03 +01:00 committed by Vinod Koul
parent bd2c6636cc
commit d3f8dc4202
1 changed files with 0 additions and 2 deletions
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2
drivers/dma/at_xdmac.c
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@ -221,7 +221,6 @@ struct at_xdmac {
int irq;
struct clk *clk;
u32 save_gim;
u32 save_gs;
struct dma_pool *at_xdmac_desc_pool;
struct at_xdmac_chan chan[0];
};
@ -1895,7 +1894,6 @@ static int atmel_xdmac_resume(struct device *dev)
}
at_xdmac_write(atxdmac, AT_XDMAC_GIE, atxdmac->save_gim);
at_xdmac_write(atxdmac, AT_XDMAC_GE, atxdmac->save_gs);
list_for_each_entry_safe(chan, _chan, &atxdmac->dma.channels, device_node) {
atchan = to_at_xdmac_chan(chan);
at_xdmac_chan_write(atchan, AT_XDMAC_CC, atchan->save_cc);