Merge "defconfig: 8974: enable coresight drivers" into msm-3.4
diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index a86798d..fe18a90 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -1160,7 +1160,7 @@
*c |= MCI_CSPM_DATCMD;
/* Check if AUTO CMD19 is required or not? */
- if (host->tuning_needed &&
+ if (host->tuning_needed && host->en_auto_cmd19 &&
!(host->mmc->ios.timing == MMC_TIMING_MMC_HS200)) {
/*
@@ -1176,7 +1176,9 @@
(cmd->opcode == MMC_READ_SINGLE_BLOCK ||
cmd->opcode == MMC_READ_MULTIPLE_BLOCK))) {
msmsdcc_enable_cdr_cm_sdc4_dll(host);
- *c |= MCI_CSPM_AUTO_CMD19;
+ if (host->en_auto_cmd19 &&
+ host->mmc->ios.timing == MMC_TIMING_UHS_SDR104)
+ *c |= MCI_CSPM_AUTO_CMD19;
}
}
@@ -4814,6 +4816,42 @@
return count;
}
+static inline void set_auto_cmd_setting(struct device *dev,
+ const char *buf,
+ bool is_cmd19)
+{
+ struct mmc_host *mmc = dev_get_drvdata(dev);
+ struct msmsdcc_host *host = mmc_priv(mmc);
+ unsigned int long flags;
+ int temp;
+
+ if (!kstrtou32(buf, 0, &temp)) {
+ spin_lock_irqsave(&host->lock, flags);
+ if (is_cmd19)
+ host->en_auto_cmd19 = !!temp;
+ spin_unlock_irqrestore(&host->lock, flags);
+ }
+}
+
+static ssize_t
+show_enable_auto_cmd19(struct device *dev, struct device_attribute *attr,
+ char *buf)
+{
+ struct mmc_host *mmc = dev_get_drvdata(dev);
+ struct msmsdcc_host *host = mmc_priv(mmc);
+
+ return snprintf(buf, PAGE_SIZE, "%d\n", host->en_auto_cmd19);
+}
+
+static ssize_t
+store_enable_auto_cmd19(struct device *dev, struct device_attribute *attr,
+ const char *buf, size_t count)
+{
+ set_auto_cmd_setting(dev, buf, true);
+
+ return count;
+}
+
#ifdef CONFIG_HAS_EARLYSUSPEND
static void msmsdcc_early_suspend(struct early_suspend *h)
{
@@ -5958,8 +5996,25 @@
ret = device_create_file(&pdev->dev, &host->idle_timeout);
if (ret)
goto remove_polling_file;
+
+ if (!is_auto_cmd19(host))
+ goto exit;
+
+ /* Sysfs entry for AUTO CMD19 control */
+ host->auto_cmd19_attr.show = show_enable_auto_cmd19;
+ host->auto_cmd19_attr.store = store_enable_auto_cmd19;
+ sysfs_attr_init(&host->auto_cmd19_attr.attr);
+ host->auto_cmd19_attr.attr.name = "enable_auto_cmd19";
+ host->auto_cmd19_attr.attr.mode = S_IRUGO | S_IWUSR;
+ ret = device_create_file(&pdev->dev, &host->auto_cmd19_attr);
+ if (ret)
+ goto remove_idle_timeout_file;
+
+ exit:
return 0;
+ remove_idle_timeout_file:
+ device_remove_file(&pdev->dev, &host->idle_timeout);
remove_polling_file:
if (!plat->status_irq)
device_remove_file(&pdev->dev, &host->polling);
@@ -6040,6 +6095,8 @@
DBG(host, "Removing SDCC device = %d\n", pdev->id);
plat = host->plat;
+ if (is_auto_cmd19(host))
+ device_remove_file(&pdev->dev, &host->auto_cmd19_attr);
device_remove_file(&pdev->dev, &host->max_bus_bw);
if (!plat->status_irq)
device_remove_file(&pdev->dev, &host->polling);
diff --git a/drivers/mmc/host/msm_sdcc.h b/drivers/mmc/host/msm_sdcc.h
index 236785d..30b1908 100644
--- a/drivers/mmc/host/msm_sdcc.h
+++ b/drivers/mmc/host/msm_sdcc.h
@@ -401,6 +401,7 @@
bool io_pad_pwr_switch;
bool tuning_in_progress;
bool tuning_needed;
+ bool en_auto_cmd19;
bool sdio_gpio_lpm;
bool irq_wake_enabled;
struct pm_qos_request pm_qos_req_dma;
@@ -417,6 +418,7 @@
struct device_attribute max_bus_bw;
struct device_attribute polling;
struct device_attribute idle_timeout;
+ struct device_attribute auto_cmd19_attr;
};
#define MSMSDCC_VERSION_MASK 0xFFFF
@@ -429,6 +431,7 @@
#define MSMSDCC_SW_RST_CFG (1 << 6)
#define MSMSDCC_WAIT_FOR_TX_RX (1 << 7)
#define MSMSDCC_IO_PAD_PWR_SWITCH (1 << 8)
+#define MSMSDCC_AUTO_CMD19 (1 << 9)
#define set_hw_caps(h, val) ((h)->hw_caps |= val)
#define is_sps_mode(h) ((h)->hw_caps & MSMSDCC_SPS_BAM_SUP)
@@ -440,6 +443,7 @@
#define is_sw_reset_save_config(h) ((h)->hw_caps & MSMSDCC_SW_RST_CFG)
#define is_wait_for_tx_rx_active(h) ((h)->hw_caps & MSMSDCC_WAIT_FOR_TX_RX)
#define is_io_pad_pwr_switch(h) ((h)->hw_caps & MSMSDCC_IO_PAD_PWR_SWITCH)
+#define is_auto_cmd19(h) ((h)->hw_caps & MSMSDCC_AUTO_CMD19)
/* Set controller capabilities based on version */
static inline void set_default_hw_caps(struct msmsdcc_host *host)
@@ -459,7 +463,8 @@
if (version) /* SDCC v4 and greater */
host->hw_caps |= MSMSDCC_AUTO_PROG_DONE |
MSMSDCC_SOFT_RESET | MSMSDCC_REG_WR_ACTIVE
- | MSMSDCC_WAIT_FOR_TX_RX | MSMSDCC_IO_PAD_PWR_SWITCH;
+ | MSMSDCC_WAIT_FOR_TX_RX | MSMSDCC_IO_PAD_PWR_SWITCH
+ | MSMSDCC_AUTO_CMD19;
if (version >= 0x2D) /* SDCC v4 2.1.0 and greater */
host->hw_caps |= MSMSDCC_SW_RST | MSMSDCC_SW_RST_CFG;