Most parts of the enable / disable API are no longer used and
can be removed.
Cc: Rajendra Nayak<rnayak@xxxxxx>
Cc: Venkatraman S<svenkatr@xxxxxx>
Cc: Kukjin Kim<kgene.kim@xxxxxxxxxxx>
Cc: Thomas Abraham<thomas.abraham@xxxxxxxxxx>
Cc: Kyungmin Park<kyungmin.park@xxxxxxxxxxx>
Cc: Sekhar Nori<nsekhar@xxxxxx>
Cc: Kevin Hilman<khilman@xxxxxx>
Signed-off-by: Adrian Hunter<adrian.hunter@xxxxxxxxx>
---
arch/arm/mach-exynos/mach-nuri.c | 5 +-
arch/arm/mach-exynos/mach-universal_c210.c | 9 +-
drivers/mmc/core/core.c | 187
+++-------------------------
drivers/mmc/core/host.c | 1 -
drivers/mmc/core/host.h | 1 -
drivers/mmc/host/davinci_mmc.c | 4 -
drivers/mmc/host/omap_hsmmc.c | 15 +--
include/linux/mmc/core.h | 1 -
include/linux/mmc/host.h | 46 +------
9 files changed, 27 insertions(+), 242 deletions(-)
diff --git a/arch/arm/mach-exynos/mach-nuri.c
b/arch/arm/mach-exynos/mach-nuri.c
index 644af11..de68248 100644
--- a/arch/arm/mach-exynos/mach-nuri.c
+++ b/arch/arm/mach-exynos/mach-nuri.c
@@ -109,7 +109,7 @@ static struct s3c_sdhci_platdata nuri_hsmmc0_data
__initdata = {
.max_width = 8,
.host_caps = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE | MMC_CAP_ERASE),
+ MMC_CAP_ERASE),
.cd_type = S3C_SDHCI_CD_PERMANENT,
};
@@ -147,8 +147,7 @@ static struct platform_device emmc_fixed_voltage = {
static struct s3c_sdhci_platdata nuri_hsmmc2_data __initdata = {
.max_width = 4,
.host_caps = MMC_CAP_4_BIT_DATA |
- MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE,
+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.ext_cd_gpio = EXYNOS4_GPX3(3), /* XEINT_27 */
.ext_cd_gpio_invert = 1,
.cd_type = S3C_SDHCI_CD_GPIO,
diff --git a/arch/arm/mach-exynos/mach-universal_c210.c
b/arch/arm/mach-exynos/mach-universal_c210.c
index 9b3fbae..57cfe61 100644
--- a/arch/arm/mach-exynos/mach-universal_c210.c
+++ b/arch/arm/mach-exynos/mach-universal_c210.c
@@ -734,8 +734,7 @@ static struct platform_device universal_gpio_keys = {
static struct s3c_sdhci_platdata universal_hsmmc0_data __initdata = {
.max_width = 8,
.host_caps = (MMC_CAP_8_BIT_DATA | MMC_CAP_4_BIT_DATA |
- MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE),
+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED),
.cd_type = S3C_SDHCI_CD_PERMANENT,
};
@@ -772,8 +771,7 @@ static struct platform_device mmc0_fixed_voltage = {
static struct s3c_sdhci_platdata universal_hsmmc2_data __initdata = {
.max_width = 4,
.host_caps = MMC_CAP_4_BIT_DATA |
- MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE,
+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.ext_cd_gpio = EXYNOS4_GPX3(4), /* XEINT_28 */
.ext_cd_gpio_invert = 1,
.cd_type = S3C_SDHCI_CD_GPIO,
@@ -783,8 +781,7 @@ static struct s3c_sdhci_platdata universal_hsmmc2_data
__initdata = {
static struct s3c_sdhci_platdata universal_hsmmc3_data __initdata = {
.max_width = 4,
.host_caps = MMC_CAP_4_BIT_DATA |
- MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED |
- MMC_CAP_DISABLE,
+ MMC_CAP_MMC_HIGHSPEED | MMC_CAP_SD_HIGHSPEED,
.cd_type = S3C_SDHCI_CD_EXTERNAL,
};
diff --git a/drivers/mmc/core/core.c b/drivers/mmc/core/core.c
index 0b317f0..44dd013 100644
--- a/drivers/mmc/core/core.c
+++ b/drivers/mmc/core/core.c
@@ -605,105 +605,6 @@ unsigned int mmc_align_data_size(struct mmc_card
*card, unsigned int sz)
EXPORT_SYMBOL(mmc_align_data_size);
/**
- * mmc_host_enable - enable a host.
- * @host: mmc host to enable
- *
- * Hosts that support power saving can use the 'enable' and 'disable'
- * methods to exit and enter power saving states. For more information
- * see comments for struct mmc_host_ops.
- */
-int mmc_host_enable(struct mmc_host *host)
-{
- if (!(host->caps& MMC_CAP_DISABLE))
- return 0;
-
- if (host->en_dis_recurs)
- return 0;
-
- if (host->nesting_cnt++)
- return 0;
-
- cancel_delayed_work_sync(&host->disable);
-
- if (host->enabled)
- return 0;
-
- if (host->ops->enable) {
- int err;
-
- host->en_dis_recurs = 1;
- mmc_host_clk_hold(host);
- err = host->ops->enable(host);
- mmc_host_clk_release(host);
- host->en_dis_recurs = 0;
-
- if (err) {
- pr_debug("%s: enable error %d\n",
- mmc_hostname(host), err);
- return err;
- }
- }
- host->enabled = 1;
- return 0;
-}
-EXPORT_SYMBOL(mmc_host_enable);
-
-static int mmc_host_do_disable(struct mmc_host *host, int lazy)
-{
- if (host->ops->disable) {
- int err;
-
- host->en_dis_recurs = 1;
- mmc_host_clk_hold(host);
- err = host->ops->disable(host, lazy);
- mmc_host_clk_release(host);
- host->en_dis_recurs = 0;
-
- if (err< 0) {
- pr_debug("%s: disable error %d\n",
- mmc_hostname(host), err);
- return err;
- }
- if (err> 0) {
- unsigned long delay = msecs_to_jiffies(err);
-
- mmc_schedule_delayed_work(&host->disable, delay);
- }
- }
- host->enabled = 0;
- return 0;
-}
-
-/**
- * mmc_host_disable - disable a host.
- * @host: mmc host to disable
- *
- * Hosts that support power saving can use the 'enable' and 'disable'
- * methods to exit and enter power saving states. For more information
- * see comments for struct mmc_host_ops.
- */
-int mmc_host_disable(struct mmc_host *host)
-{
- int err;
-
- if (!(host->caps& MMC_CAP_DISABLE))
- return 0;
-
- if (host->en_dis_recurs)
- return 0;
-
- if (--host->nesting_cnt)
- return 0;
-
- if (!host->enabled)
- return 0;
-
- err = mmc_host_do_disable(host, 0);
- return err;
-}
-EXPORT_SYMBOL(mmc_host_disable);
-
-/**
* __mmc_claim_host - exclusively claim a host
* @host: mmc host to claim
* @abort: whether or not the operation should be aborted
@@ -741,8 +642,8 @@ int __mmc_claim_host(struct mmc_host *host, atomic_t
*abort)
wake_up(&host->wq);
spin_unlock_irqrestore(&host->lock, flags);
remove_wait_queue(&host->wq,&wait);
- if (!stop)
- mmc_host_enable(host);
+ if (host->ops->enable&& !stop&& host->claim_cnt == 1)
