static void fdma_reset_all(struct fdma *fdma)
{
fdma_disable_all_channels(fdma);
fdma_reset_channels(fdma);
/* reset the CPU program counter and all the
* instruction pipeline registers */
writel(5, fdma->io_base + fdma->regs.clk_gate);
}
static int fdma_driver_remove(struct platform_device *pdev)
{
struct fdma *fdma = platform_get_drvdata(pdev);
fdma_disable_all_channels(fdma);
stm_fdma_clk_disable(fdma);
iounmap(fdma->io_base);
dma_pool_destroy(fdma->llu_pool);
free_irq(fdma->irq, fdma);
unregister_dmac(&fdma->dma_info);
release_resource(fdma->phys_mem);
kfree(fdma);
return 0;
}
static int fdma_suspend_freeze_noirq(struct device *dev)
{
struct fdma *fdma = dev_get_drvdata(dev);
if (fdma->firmware_loaded != 1)
return 0;
/*
* At this point the channel users are already
* suspended this makes safe the 'disable_all_channels'
* call.
* BTW the channels have to be stopped because
* we have to avoid any access on memory while
* it is in self-refresh
*/
fdma_disable_all_channels(fdma);
stm_fdma_clk_disable(fdma);
return 0;
}
