AuxXxilium/linux_dsm_epyc7002
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mmc: dw_mmc: use the 'slot' instead of 'cur_slot'

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Remove the 'cur_slot'. Instead, just use 'slot'.
There is no multiple slots, so we need to consider only one slot.

Signed-off-by: Jaehoon Chung <jh80.chung@samsung.com>
Reviewed-by: Shawn Lin <shawn.lin@rock-chips.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
This commit is contained in:
Jaehoon Chung 2017-06-05 13:41:34 +09:00 committed by Ulf Hansson
parent e4a65ef768
commit 42f989c002
3 changed files with 18 additions and 22 deletions
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4
drivers/mmc/host/dw_mmc-exynos.c
View File

@ -157,8 +157,8 @@ static void dw_mci_exynos_set_clksel_timing(struct dw_mci *host, u32 timing)
* HOLD register should be bypassed in case there is no phase shift
* applied on CMD/DATA that is sent to the card.
*/
if (!SDMMC_CLKSEL_GET_DRV_WD3(clksel) && host->cur_slot)
set_bit(DW_MMC_CARD_NO_USE_HOLD, &host->cur_slot->flags);
if (!SDMMC_CLKSEL_GET_DRV_WD3(clksel) && host->slot)
set_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags);
}
#ifdef CONFIG_PM

33
drivers/mmc/host/dw_mmc.c
View File

@ -392,7 +392,7 @@ static u32 dw_mci_prep_stop_abort(struct dw_mci *host, struct mmc_command *cmd)
cmdr = stop->opcode | SDMMC_CMD_STOP |
SDMMC_CMD_RESP_CRC | SDMMC_CMD_RESP_EXP;
if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->cur_slot->flags))
if (!test_bit(DW_MMC_CARD_NO_USE_HOLD, &host->slot->flags))
cmdr |= SDMMC_CMD_USE_HOLD_REG;
return cmdr;
@ -480,7 +480,7 @@ static void dw_mci_dmac_complete_dma(void *arg)
if ((host->use_dma == TRANS_MODE_EDMAC) &&
data && (data->flags & MMC_DATA_READ))
/* Invalidate cache after read */
dma_sync_sg_for_cpu(mmc_dev(host->cur_slot->mmc),
dma_sync_sg_for_cpu(mmc_dev(host->slot->mmc),
data->sg,
data->sg_len,
DMA_FROM_DEVICE);
@ -820,7 +820,7 @@ static int dw_mci_edmac_start_dma(struct dw_mci *host,
/* Flush cache before write */
if (host->data->flags & MMC_DATA_WRITE)
dma_sync_sg_for_device(mmc_dev(host->cur_slot->mmc), sgl,
dma_sync_sg_for_device(mmc_dev(host->slot->mmc), sgl,
sg_elems, DMA_TO_DEVICE);
dma_async_issue_pending(host->dms->ch);
@ -1282,7 +1282,6 @@ static void __dw_mci_start_request(struct dw_mci *host,
mrq = slot->mrq;
host->cur_slot = slot;
host->mrq = mrq;
host->pending_events = 0;
@ -1763,7 +1762,7 @@ static bool dw_mci_reset(struct dw_mci *host)
ciu_out:
/* After a CTRL reset we need to have CIU set clock registers */
mci_send_cmd(host->cur_slot, SDMMC_CMD_UPD_CLK, 0);
mci_send_cmd(host->slot, SDMMC_CMD_UPD_CLK, 0);
return ret;
}
@ -1790,11 +1789,11 @@ static void dw_mci_request_end(struct dw_mci *host, struct mmc_request *mrq)
__acquires(&host->lock)
{
struct dw_mci_slot *slot;
struct mmc_host *prev_mmc = host->cur_slot->mmc;
struct mmc_host *prev_mmc = host->slot->mmc;
WARN_ON(host->cmd || host->data);
host->cur_slot->mrq = NULL;
host->slot->mrq = NULL;
host->mrq = NULL;
if (!list_empty(&host->queue)) {
slot = list_entry(host->queue.next,
@ -1944,7 +1943,7 @@ static void dw_mci_tasklet_func(unsigned long priv)
err = dw_mci_command_complete(host, cmd);
if (cmd == mrq->sbc && !err) {
prev_state = state = STATE_SENDING_CMD;
__dw_mci_start_request(host, host->cur_slot,
__dw_mci_start_request(host, host->slot,
mrq->cmd);
goto unlock;
}
@ -3261,9 +3260,9 @@ int dw_mci_runtime_suspend(struct device *dev)
clk_disable_unprepare(host->ciu_clk);
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc)))
if (host->slot &&
(mmc_can_gpio_cd(host->slot->mmc) ||
!mmc_card_is_removable(host->slot->mmc)))
clk_disable_unprepare(host->biu_clk);
return 0;
@ -3276,9 +3275,9 @@ int dw_mci_runtime_resume(struct device *dev)
struct dw_mci *host = dev_get_drvdata(dev);
struct dw_mci_slot *slot = host->slot;
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc))) {
if (host->slot &&
(mmc_can_gpio_cd(host->slot->mmc) ||
!mmc_card_is_removable(host->slot->mmc))) {
ret = clk_prepare_enable(host->biu_clk);
if (ret)
return ret;
@ -3326,9 +3325,9 @@ int dw_mci_runtime_resume(struct device *dev)
return 0;
err:
if (host->cur_slot &&
(mmc_can_gpio_cd(host->cur_slot->mmc) ||
!mmc_card_is_removable(host->cur_slot->mmc)))
if (host->slot &&
(mmc_can_gpio_cd(host->slot->mmc) ||
!mmc_card_is_removable(host->slot->mmc)))
clk_disable_unprepare(host->biu_clk);
return ret;

3
drivers/mmc/host/dw_mmc.h
View File

@ -132,7 +132,6 @@ struct dw_mci_dma_slave {
* =======
*
* @lock is a softirq-safe spinlock protecting @queue as well as
* @cur_slot, @mrq and @state. These must always be updated
* at the same time while holding @lock.
*
* @irq_lock is an irq-safe spinlock protecting the INTMASK register
@ -168,7 +167,6 @@ struct dw_mci {
struct scatterlist *sg;
struct sg_mapping_iter sg_miter;
struct dw_mci_slot *cur_slot;
struct mmc_request *mrq;
struct mmc_command *cmd;
struct mmc_data *data;
@ -204,7 +202,6 @@ struct dw_mci {
u32 bus_hz;
u32 current_speed;
u32 num_slots;
u32 fifoth_val;
u16 verid;
struct device *dev;