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mmc: renesas_sdhi_internal_dmac: clean up the code for dma complete

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[ Upstream commit 2b26e34e9af3fa24fa1266e9ea2d66a1f7d62dc0 ]

To add end() operation in the future, clean the code of
renesas_sdhi_internal_dmac_complete_tasklet_fn(). No behavior change.

Signed-off-by: Yoshihiro Shimoda <yoshihiro.shimoda.uh@renesas.com>
Link: https://lore.kernel.org/r/1590044466-28372-3-git-send-email-yoshihiro.shimoda.uh@renesas.com
Tested-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
This commit is contained in:
Yoshihiro Shimoda 2020-05-21 16:01:05 +09:00 committed by Greg Kroah-Hartman
parent e9bca40189
commit 388a802632
1 changed files with 13 additions and 5 deletions
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18
drivers/mmc/host/renesas_sdhi_internal_dmac.c
View file

@ -222,15 +222,12 @@ static void renesas_sdhi_internal_dmac_issue_tasklet_fn(unsigned long arg)
DTRAN_CTRL_DM_START);
}
static void renesas_sdhi_internal_dmac_complete_tasklet_fn(unsigned long arg)
static bool renesas_sdhi_internal_dmac_complete(struct tmio_mmc_host *host)
{
struct tmio_mmc_host *host = (struct tmio_mmc_host *)arg;
enum dma_data_direction dir;
spin_lock_irq(&host->lock);
if (!host->data)
goto out;
return false;
if (host->data->flags & MMC_DATA_READ)
dir = DMA_FROM_DEVICE;
@ -243,6 +240,17 @@ static void renesas_sdhi_internal_dmac_complete_tasklet_fn(unsigned long arg)
if (dir == DMA_FROM_DEVICE)
clear_bit(SDHI_INTERNAL_DMAC_RX_IN_USE, &global_flags);
return true;
}
static void renesas_sdhi_internal_dmac_complete_tasklet_fn(unsigned long arg)
{
struct tmio_mmc_host *host = (struct tmio_mmc_host *)arg;
spin_lock_irq(&host->lock);
if (!renesas_sdhi_internal_dmac_complete(host))
goto out;
tmio_mmc_do_data_irq(host);
out:
spin_unlock_irq(&host->lock);