Merge branch 'for-linus' of git://codeaurora.org/quic/kernel/davidb/linux-msm

* 'for-linus' of git://codeaurora.org/quic/kernel/davidb/linux-msm: (46 commits)
  msm: scm: Check for interruption immediately
  msm: scm: Fix improper register assignment
  msm: scm: Mark inline asm as volatile
  msm: iommu: Enable HTW L2 redirection on MSM8960
  msm: iommu: Don't read from write-only registers
  msm: iommu: Remove dependency on IDR
  msm: iommu: Use ASID tagging instead of VMID tagging
  msm: iommu: Rework clock logic and add IOMMU bus clock control
  msm: iommu: Clock control for the IOMMU driver
  msm: mdp: Set the correct pack pattern for XRGB/ARGB
  msm_fb: Fix framebuffer console
  msm: mdp: Add support for RGBX 8888 image format.
  video: msmfb: Put the partial update magic value into the fix_screen struct.
  msm: clock: Migrate to clkdev
  msm: clock: Remove references to clk_ops_pcom
  msm: headsmp.S: Fix section mismatch
  msm: Use explicit GPLv2 licenses
  msm: iommu: Enable IOMMU support for MSM8960
  msm: iommu: Generalize platform data for multiple targets
  msm: iommu: Create a Kconfig item for the IOMMU driver
  ...

2 files changed, 40 insertions, 1 deletions

diff --git a/drivers/mmc/host/msm_sdcc.c b/drivers/mmc/host/msm_sdcc.c
index 153ab977a01..97c9b3638d5 100644
--- a/drivers/mmc/host/msm_sdcc.c
+++ b/drivers/mmc/host/msm_sdcc.c
@@ -36,6 +36,7 @@
 #include <linux/io.h>
 #include <linux/memory.h>
 #include <linux/gfp.h>
+#include <linux/gpio.h>
 
 #include <asm/cacheflush.h>
 #include <asm/div64.h>
@@ -941,6 +942,38 @@ msmsdcc_request(struct mmc_host *mmc, struct mmc_request *mrq)
 	spin_unlock_irqrestore(&host->lock, flags);
 }
 
+static void msmsdcc_setup_gpio(struct msmsdcc_host *host, bool enable)
+{
+	struct msm_mmc_gpio_data *curr;
+	int i, rc = 0;
+
+	if (!host->plat->gpio_data && host->gpio_config_status == enable)
+		return;
+
+	curr = host->plat->gpio_data;
+	for (i = 0; i < curr->size; i++) {
+		if (enable) {
+			rc = gpio_request(curr->gpio[i].no,
+						curr->gpio[i].name);
+			if (rc) {
+				pr_err("%s: gpio_request(%d, %s) failed %d\n",
+					mmc_hostname(host->mmc),
+					curr->gpio[i].no,
+					curr->gpio[i].name, rc);
+				goto free_gpios;
+			}
+		} else {
+			gpio_free(curr->gpio[i].no);
+		}
+	}
+	host->gpio_config_status = enable;
+	return;
+
+free_gpios:
+	for (; i >= 0; i--)
+		gpio_free(curr->gpio[i].no);
+}
+
 static void
 msmsdcc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 {
@@ -953,6 +986,8 @@ msmsdcc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
 	msmsdcc_enable_clocks(host);
 
+	spin_unlock_irqrestore(&host->lock, flags);
+
 	if (ios->clock) {
 		if (ios->clock != host->clk_rate) {
 			rc = clk_set_rate(host->clk, ios->clock);
@@ -979,9 +1014,11 @@ msmsdcc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 
 	switch (ios->power_mode) {
 	case MMC_POWER_OFF:
+		msmsdcc_setup_gpio(host, false);
 		break;
 	case MMC_POWER_UP:
 		pwr |= MCI_PWR_UP;
+		msmsdcc_setup_gpio(host, true);
 		break;
 	case MMC_POWER_ON:
 		pwr |= MCI_PWR_ON;
@@ -998,9 +1035,10 @@ msmsdcc_set_ios(struct mmc_host *mmc, struct mmc_ios *ios)
 		msmsdcc_writel(host, pwr, MMCIPOWER);
 	}
 #if BUSCLK_PWRSAVE
+	spin_lock_irqsave(&host->lock, flags);
 	msmsdcc_disable_clocks(host, 1);
-#endif
 	spin_unlock_irqrestore(&host->lock, flags);
+#endif
 }
 
 static void msmsdcc_enable_sdio_irq(struct mmc_host *mmc, int enable)
diff --git a/drivers/mmc/host/msm_sdcc.h b/drivers/mmc/host/msm_sdcc.h
index 939557af266..42d7bbc977c 100644
--- a/drivers/mmc/host/msm_sdcc.h
+++ b/drivers/mmc/host/msm_sdcc.h
@@ -243,6 +243,7 @@ struct msmsdcc_host {
 	unsigned int		cmd_datactrl;
 	struct mmc_command	*cmd_cmd;
 	u32			cmd_c;
+	bool			gpio_config_status;
 
 	bool prog_scan;
 	bool prog_enable;