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mmc: drop the speed mode of card's state 

Timing mode identifier has same role and can take the place
of speed mode. This change removes all related speed mode.

Signed-off-by: Seungwon Jeon <tgih.jun@samsung.com>
Tested-by: Jaehoon Chung <jh80.chung@samsung.com>
Acked-by: Jaehoon Chung <jh80.chung@samsung.com>
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Chris Ball <chris@printf.net>
This commit is contained in:
Seungwon Jeon 2014-04-23 17:07:35 +09:00 committed by Chris Ball
parent b78871d0cf
commit cdc991790c
9 changed files with 43 additions and 54 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
drivers/mmc/core/bus.c
View File

@ -341,16 +341,16 @@ int mmc_add_card(struct mmc_card *card)
if (mmc_host_is_spi(card->host)) {
pr_info("%s: new %s%s%s card on SPI\n",
mmc_hostname(card->host),
mmc_card_highspeed(card) ? "high speed " : "",
mmc_card_ddr_mode(card) ? "DDR " : "",
mmc_card_hs(card) ? "high speed " : "",
mmc_card_ddr52(card) ? "DDR " : "",
type);
} else {
pr_info("%s: new %s%s%s%s%s card at address %04x\n",
mmc_hostname(card->host),
mmc_card_uhs(card) ? "ultra high speed " :
(mmc_card_highspeed(card) ? "high speed " : ""),
(mmc_card_hs(card) ? "high speed " : ""),
(mmc_card_hs200(card) ? "HS200 " : ""),
mmc_card_ddr_mode(card) ? "DDR " : "",
mmc_card_ddr52(card) ? "DDR " : "",
uhs_bus_speed_mode, type, card->rca);
}

3
drivers/mmc/core/core.c
View File

@ -2192,7 +2192,7 @@ int mmc_set_blocklen(struct mmc_card *card, unsigned int blocklen)
{
struct mmc_command cmd = {0};
if (mmc_card_blockaddr(card) || mmc_card_ddr_mode(card))
if (mmc_card_blockaddr(card) || mmc_card_ddr52(card))
return 0;
cmd.opcode = MMC_SET_BLOCKLEN;
@ -2272,7 +2272,6 @@ static int mmc_do_hw_reset(struct mmc_host *host, int check)
}
}
host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_DDR);
if (mmc_host_is_spi(host)) {
host->ios.chip_select = MMC_CS_HIGH;
host->ios.bus_mode = MMC_BUSMODE_PUSHPULL;

11
drivers/mmc/core/mmc.c
View File

@ -1083,11 +1083,9 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
} else {
if (card->ext_csd.hs_max_dtr > 52000000 &&
host->caps2 & MMC_CAP2_HS200) {
mmc_card_set_hs200(card);
mmc_set_timing(card->host,
MMC_TIMING_MMC_HS200);
} else {
mmc_card_set_highspeed(card);
mmc_set_timing(card->host, MMC_TIMING_MMC_HS);
}
}
@ -1098,10 +1096,10 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
*/
max_dtr = (unsigned int)-1;
if (mmc_card_highspeed(card) || mmc_card_hs200(card)) {
if (mmc_card_hs(card) || mmc_card_hs200(card)) {
if (max_dtr > card->ext_csd.hs_max_dtr)
max_dtr = card->ext_csd.hs_max_dtr;
if (mmc_card_highspeed(card) && (max_dtr > 52000000))
if (mmc_card_hs(card) && (max_dtr > 52000000))
max_dtr = 52000000;
} else if (max_dtr > card->csd.max_dtr) {
max_dtr = card->csd.max_dtr;
@ -1112,7 +1110,7 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
/*
* Indicate DDR mode (if supported).
*/
if (mmc_card_highspeed(card)) {
if (mmc_card_hs(card)) {
if ((card->ext_csd.card_type & EXT_CSD_CARD_TYPE_DDR_1_8V)
&& (host->caps & MMC_CAP_1_8V_DDR))
ddr = MMC_1_8V_DDR_MODE;
@ -1255,7 +1253,6 @@ static int mmc_init_card(struct mmc_host *host, u32 ocr,
if (err)
goto err;
}
mmc_card_set_ddr_mode(card);
mmc_set_timing(card->host, MMC_TIMING_MMC_DDR52);
mmc_set_bus_width(card->host, bus_width);
}
@ -1499,7 +1496,6 @@ static int _mmc_suspend(struct mmc_host *host, bool is_suspend)
err = mmc_sleep(host);
else if (!mmc_host_is_spi(host))
err = mmc_deselect_cards(host);
host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200);
if (!err) {
mmc_power_off(host);
@ -1629,7 +1625,6 @@ static int mmc_power_restore(struct mmc_host *host)
{
int ret;
host->card->state &= ~(MMC_STATE_HIGHSPEED | MMC_STATE_HIGHSPEED_200);
mmc_claim_host(host);
ret = mmc_init_card(host, host->card->ocr, host->card);
mmc_release_host(host);

16
drivers/mmc/core/sd.c
View File

@ -887,7 +887,7 @@ unsigned mmc_sd_get_max_clock(struct mmc_card *card)
{
unsigned max_dtr = (unsigned int)-1;
if (mmc_card_highspeed(card)) {
if (mmc_card_hs(card)) {
if (max_dtr > card->sw_caps.hs_max_dtr)
max_dtr = card->sw_caps.hs_max_dtr;
} else if (max_dtr > card->csd.max_dtr) {
@ -897,12 +897,6 @@ unsigned mmc_sd_get_max_clock(struct mmc_card *card)
return max_dtr;
}
void mmc_sd_go_highspeed(struct mmc_card *card)
{
mmc_card_set_highspeed(card);
mmc_set_timing(card->host, MMC_TIMING_SD_HS);
}
/*
* Handle the detection and initialisation of a card.
*
@ -977,16 +971,13 @@ static int mmc_sd_init_card(struct mmc_host *host, u32 ocr,
err = mmc_sd_init_uhs_card(card);
if (err)
goto free_card;
/* Card is an ultra-high-speed card */
mmc_card_set_uhs(card);
} else {
/*
* Attempt to change to high-speed (if supported)
*/
err = mmc_sd_switch_hs(card);
if (err > 0)
mmc_sd_go_highspeed(card);
mmc_set_timing(card->host, MMC_TIMING_SD_HS);
else if (err)
goto free_card;
@ -1081,7 +1072,7 @@ static int _mmc_sd_suspend(struct mmc_host *host)
if (!mmc_host_is_spi(host))
err = mmc_deselect_cards(host);
host->card->state &= ~MMC_STATE_HIGHSPEED;
if (!err) {
mmc_power_off(host);
mmc_card_set_suspended(host->card);
@ -1190,7 +1181,6 @@ static int mmc_sd_power_restore(struct mmc_host *host)
{
int ret;
host->card->state &= ~MMC_STATE_HIGHSPEED;
mmc_claim_host(host);
ret = mmc_sd_init_card(host, host->card->ocr, host->card);
mmc_release_host(host);

1
drivers/mmc/core/sd.h
View File

@ -12,6 +12,5 @@ int mmc_sd_setup_card(struct mmc_host *host, struct mmc_card *card,
bool reinit);
unsigned mmc_sd_get_max_clock(struct mmc_card *card);
int mmc_sd_switch_hs(struct mmc_card *card);
void mmc_sd_go_highspeed(struct mmc_card *card);
#endif

8
drivers/mmc/core/sdio.c
View File

@ -363,7 +363,7 @@ static unsigned mmc_sdio_get_max_clock(struct mmc_card *card)
{
unsigned max_dtr;
if (mmc_card_highspeed(card)) {
if (mmc_card_hs(card)) {
/*
* The SDIO specification doesn't mention how
* the CIS transfer speed register relates to
@ -733,7 +733,6 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
mmc_set_clock(host, card->cis.max_dtr);
if (card->cccr.high_speed) {
mmc_card_set_highspeed(card);
mmc_set_timing(card->host, MMC_TIMING_SD_HS);
}
@ -792,16 +791,13 @@ static int mmc_sdio_init_card(struct mmc_host *host, u32 ocr,
err = mmc_sdio_init_uhs_card(card);
if (err)
goto remove;
/* Card is an ultra-high-speed card */
mmc_card_set_uhs(card);
} else {
/*
* Switch to high-speed (if supported).
*/
err = sdio_enable_hs(card);
if (err > 0)
mmc_sd_go_highspeed(card);
mmc_set_timing(card->host, MMC_TIMING_SD_HS);
else if (err)
goto remove;

4
drivers/net/wireless/rsi/rsi_91x_sdio.c
View File

@ -285,7 +285,6 @@ static void rsi_reset_card(struct sdio_func *pfunction)
if (err) {
rsi_dbg(ERR_ZONE, "%s: CCCR speed reg read failed: %d\n",
__func__, err);
card->state &= ~MMC_STATE_HIGHSPEED;
} else {
err = rsi_cmd52writebyte(card,
SDIO_CCCR_SPEED,
@ -296,14 +295,13 @@ static void rsi_reset_card(struct sdio_func *pfunction)
__func__, err);
return;
}
mmc_card_set_highspeed(card);
host->ios.timing = MMC_TIMING_SD_HS;
host->ops->set_ios(host, &host->ios);
}
}
/* Set clock */
if (mmc_card_highspeed(card))
if (mmc_card_hs(card))
clock = 50000000;
else
clock = card->cis.max_dtr;

23
include/linux/mmc/card.h
View File

@ -194,6 +194,7 @@ struct sdio_cis {
};
struct mmc_host;
struct mmc_ios;
struct sdio_func;
struct sdio_func_tuple;
@ -250,15 +251,11 @@ struct mmc_card {
unsigned int state; /* (our) card state */
#define MMC_STATE_PRESENT (1<<0) /* present in sysfs */
#define MMC_STATE_READONLY (1<<1) /* card is read-only */
#define MMC_STATE_HIGHSPEED (1<<2) /* card is in high speed mode */
#define MMC_STATE_BLOCKADDR (1<<3) /* card uses block-addressing */
#define MMC_STATE_HIGHSPEED_DDR (1<<4) /* card is in high speed mode */
#define MMC_STATE_ULTRAHIGHSPEED (1<<5) /* card is in ultra high speed mode */
#define MMC_CARD_SDXC (1<<6) /* card is SDXC */
#define MMC_CARD_REMOVED (1<<7) /* card has been removed */
#define MMC_STATE_HIGHSPEED_200 (1<<8) /* card is in HS200 mode */
#define MMC_STATE_DOING_BKOPS (1<<10) /* card is doing BKOPS */
#define MMC_STATE_SUSPENDED (1<<11) /* card is suspended */
#define MMC_STATE_BLOCKADDR (1<<2) /* card uses block-addressing */
#define MMC_CARD_SDXC (1<<3) /* card is SDXC */
#define MMC_CARD_REMOVED (1<<4) /* card has been removed */
#define MMC_STATE_DOING_BKOPS (1<<5) /* card is doing BKOPS */
#define MMC_STATE_SUSPENDED (1<<6) /* card is suspended */
unsigned int quirks; /* card quirks */
#define MMC_QUIRK_LENIENT_FN0 (1<<0) /* allow SDIO FN0 writes outside of the VS CCCR range */
#define MMC_QUIRK_BLKSZ_FOR_BYTE_MODE (1<<1) /* use func->cur_blksize */
@ -418,11 +415,7 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
#define mmc_card_present(c) ((c)->state & MMC_STATE_PRESENT)
#define mmc_card_readonly(c) ((c)->state & MMC_STATE_READONLY)
#define mmc_card_highspeed(c) ((c)->state & MMC_STATE_HIGHSPEED)
#define mmc_card_hs200(c) ((c)->state & MMC_STATE_HIGHSPEED_200)
#define mmc_card_blockaddr(c) ((c)->state & MMC_STATE_BLOCKADDR)
#define mmc_card_ddr_mode(c) ((c)->state & MMC_STATE_HIGHSPEED_DDR)
#define mmc_card_uhs(c) ((c)->state & MMC_STATE_ULTRAHIGHSPEED)
#define mmc_card_ext_capacity(c) ((c)->state & MMC_CARD_SDXC)
#define mmc_card_removed(c) ((c) && ((c)->state & MMC_CARD_REMOVED))
#define mmc_card_doing_bkops(c) ((c)->state & MMC_STATE_DOING_BKOPS)
@ -430,11 +423,7 @@ static inline void __maybe_unused remove_quirk(struct mmc_card *card, int data)
#define mmc_card_set_present(c) ((c)->state |= MMC_STATE_PRESENT)
#define mmc_card_set_readonly(c) ((c)->state |= MMC_STATE_READONLY)
#define mmc_card_set_highspeed(c) ((c)->state |= MMC_STATE_HIGHSPEED)
#define mmc_card_set_hs200(c) ((c)->state |= MMC_STATE_HIGHSPEED_200)
#define mmc_card_set_blockaddr(c) ((c)->state |= MMC_STATE_BLOCKADDR)
#define mmc_card_set_ddr_mode(c) ((c)->state |= MMC_STATE_HIGHSPEED_DDR)
#define mmc_card_set_uhs(c) ((c)->state |= MMC_STATE_ULTRAHIGHSPEED)
#define mmc_card_set_ext_capacity(c) ((c)->state |= MMC_CARD_SDXC)
#define mmc_card_set_removed(c) ((c)->state |= MMC_CARD_REMOVED)
#define mmc_card_set_doing_bkops(c) ((c)->state |= MMC_STATE_DOING_BKOPS)

23
include/linux/mmc/host.h
View File

@ -17,6 +17,7 @@
#include <linux/fault-inject.h>
#include <linux/mmc/core.h>
#include <linux/mmc/card.h>
#include <linux/mmc/pm.h>
struct mmc_ios {
@ -478,4 +479,26 @@ static inline unsigned int mmc_host_clk_rate(struct mmc_host *host)
return host->ios.clock;
}
#endif
static inline int mmc_card_hs(struct mmc_card *card)
{
return card->host->ios.timing == MMC_TIMING_SD_HS ||
card->host->ios.timing == MMC_TIMING_MMC_HS;
}
static inline int mmc_card_uhs(struct mmc_card *card)
{
return card->host->ios.timing >= MMC_TIMING_UHS_SDR12 &&
card->host->ios.timing <= MMC_TIMING_UHS_DDR50;
}
static inline bool mmc_card_hs200(struct mmc_card *card)
{
return card->host->ios.timing == MMC_TIMING_MMC_HS200;
}
static inline bool mmc_card_ddr52(struct mmc_card *card)
{
return card->host->ios.timing == MMC_TIMING_MMC_DDR52;
}
#endif /* LINUX_MMC_HOST_H */