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-rw-r--r--drivers/mmc/host/dw_mmc.c20
-rw-r--r--drivers/mmc/host/s3cmci.c1
-rw-r--r--drivers/mmc/host/sdhci-acpi.c5
-rw-r--r--drivers/mmc/host/sdhci-iproc.c3
-rw-r--r--drivers/mmc/host/sdhci-of-arasan.c14
-rw-r--r--drivers/mmc/host/sdhci-of-at91.c65
-rw-r--r--drivers/mmc/host/sdhci-of-esdhc.c18
-rw-r--r--drivers/mmc/host/sdhci-pci-core.c4
-rw-r--r--drivers/mmc/host/sdhci.c10
-rw-r--r--drivers/mmc/host/ushc.c3
10 files changed, 111 insertions, 32 deletions
diff --git a/drivers/mmc/host/dw_mmc.c b/drivers/mmc/host/dw_mmc.c
index df478ae72e23..f81f4175f49a 100644
--- a/drivers/mmc/host/dw_mmc.c
+++ b/drivers/mmc/host/dw_mmc.c
@@ -2610,8 +2610,8 @@ static int dw_mci_init_slot(struct dw_mci *host, unsigned int id)
host->slot[id] = slot;
mmc->ops = &dw_mci_ops;
- if (of_property_read_u32_array(host->dev->of_node,
- "clock-freq-min-max", freq, 2)) {
+ if (device_property_read_u32_array(host->dev, "clock-freq-min-max",
+ freq, 2)) {
mmc->f_min = DW_MCI_FREQ_MIN;
mmc->f_max = DW_MCI_FREQ_MAX;
} else {
@@ -2709,7 +2709,6 @@ static void dw_mci_init_dma(struct dw_mci *host)
{
int addr_config;
struct device *dev = host->dev;
- struct device_node *np = dev->of_node;
/*
* Check tansfer mode from HCON[17:16]
@@ -2770,8 +2769,9 @@ static void dw_mci_init_dma(struct dw_mci *host)
dev_info(host->dev, "Using internal DMA controller.\n");
} else {
/* TRANS_MODE_EDMAC: check dma bindings again */
- if ((of_property_count_strings(np, "dma-names") < 0) ||
- (!of_find_property(np, "dmas", NULL))) {
+ if ((device_property_read_string_array(dev, "dma-names",
+ NULL, 0) < 0) ||
+ !device_property_present(dev, "dmas")) {
goto no_dma;
}
host->dma_ops = &dw_mci_edmac_ops;
@@ -2931,7 +2931,6 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
{
struct dw_mci_board *pdata;
struct device *dev = host->dev;
- struct device_node *np = dev->of_node;
const struct dw_mci_drv_data *drv_data = host->drv_data;
int ret;
u32 clock_frequency;
@@ -2948,15 +2947,16 @@ static struct dw_mci_board *dw_mci_parse_dt(struct dw_mci *host)
}
/* find out number of slots supported */
- of_property_read_u32(np, "num-slots", &pdata->num_slots);
+ device_property_read_u32(dev, "num-slots", &pdata->num_slots);
- if (of_property_read_u32(np, "fifo-depth", &pdata->fifo_depth))
+ if (device_property_read_u32(dev, "fifo-depth", &pdata->fifo_depth))
dev_info(dev,
"fifo-depth property not found, using value of FIFOTH register as default\n");
- of_property_read_u32(np, "card-detect-delay", &pdata->detect_delay_ms);
+ device_property_read_u32(dev, "card-detect-delay",
+ &pdata->detect_delay_ms);
- if (!of_property_read_u32(np, "clock-frequency", &clock_frequency))
+ if (!device_property_read_u32(dev, "clock-frequency", &clock_frequency))
pdata->bus_hz = clock_frequency;
if (drv_data && drv_data->parse_dt) {
diff --git a/drivers/mmc/host/s3cmci.c b/drivers/mmc/host/s3cmci.c
index c531deef3258..8f27fe35e8af 100644
--- a/drivers/mmc/host/s3cmci.c
+++ b/drivers/mmc/host/s3cmci.c
@@ -21,6 +21,7 @@
#include <linux/debugfs.h>
#include <linux/seq_file.h>
#include <linux/gpio.h>
+#include <linux/interrupt.h>
#include <linux/irq.h>
#include <linux/io.h>
diff --git a/drivers/mmc/host/sdhci-acpi.c b/drivers/mmc/host/sdhci-acpi.c
index fddd0be196f4..80918abfc468 100644
--- a/drivers/mmc/host/sdhci-acpi.c
+++ b/drivers/mmc/host/sdhci-acpi.c
@@ -466,7 +466,10 @@ static int sdhci_acpi_probe(struct platform_device *pdev)
if (sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD)) {
bool v = sdhci_acpi_flag(c, SDHCI_ACPI_SD_CD_OVERRIDE_LEVEL);
- if (mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL)) {
+ err = mmc_gpiod_request_cd(host->mmc, NULL, 0, v, 0, NULL);
+ if (err) {
+ if (err == -EPROBE_DEFER)
+ goto err_free;
dev_warn(dev, "failed to setup card detect gpio\n");
c->use_runtime_pm = false;
}
diff --git a/drivers/mmc/host/sdhci-iproc.c b/drivers/mmc/host/sdhci-iproc.c
index 726246665850..50dd6bd02951 100644
--- a/drivers/mmc/host/sdhci-iproc.c
+++ b/drivers/mmc/host/sdhci-iproc.c
@@ -157,7 +157,8 @@ static const struct sdhci_ops sdhci_iproc_ops = {
};
static const struct sdhci_pltfm_data sdhci_iproc_pltfm_data = {
- .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK,
+ .quirks = SDHCI_QUIRK_DATA_TIMEOUT_USES_SDCLK |
+ SDHCI_QUIRK_MULTIBLOCK_READ_ACMD12,
.quirks2 = SDHCI_QUIRK2_ACMD23_BROKEN,
.ops = &sdhci_iproc_ops,
};
diff --git a/drivers/mmc/host/sdhci-of-arasan.c b/drivers/mmc/host/sdhci-of-arasan.c
index 410a55b1c25f..1cfd7f900339 100644
--- a/drivers/mmc/host/sdhci-of-arasan.c
+++ b/drivers/mmc/host/sdhci-of-arasan.c
@@ -28,13 +28,9 @@
#include "sdhci-pltfm.h"
#include <linux/of.h>
-#define SDHCI_ARASAN_CLK_CTRL_OFFSET 0x2c
#define SDHCI_ARASAN_VENDOR_REGISTER 0x78
#define VENDOR_ENHANCED_STROBE BIT(0)
-#define CLK_CTRL_TIMEOUT_SHIFT 16
-#define CLK_CTRL_TIMEOUT_MASK (0xf << CLK_CTRL_TIMEOUT_SHIFT)
-#define CLK_CTRL_TIMEOUT_MIN_EXP 13
#define PHY_CLK_TOO_SLOW_HZ 400000
@@ -163,15 +159,15 @@ static int sdhci_arasan_syscon_write(struct sdhci_host *host,
static unsigned int sdhci_arasan_get_timeout_clock(struct sdhci_host *host)
{
- u32 div;
unsigned long freq;
struct sdhci_pltfm_host *pltfm_host = sdhci_priv(host);
- div = readl(host->ioaddr + SDHCI_ARASAN_CLK_CTRL_OFFSET);
- div = (div & CLK_CTRL_TIMEOUT_MASK) >> CLK_CTRL_TIMEOUT_SHIFT;
+ /* SDHCI timeout clock is in kHz */
+ freq = DIV_ROUND_UP(clk_get_rate(pltfm_host->clk), 1000);
- freq = clk_get_rate(pltfm_host->clk);
- freq /= 1 << (CLK_CTRL_TIMEOUT_MIN_EXP + div);
+ /* or in MHz */
+ if (host->caps & SDHCI_TIMEOUT_CLK_UNIT)
+ freq = DIV_ROUND_UP(freq, 1000);
return freq;
}
diff --git a/drivers/mmc/host/sdhci-of-at91.c b/drivers/mmc/host/sdhci-of-at91.c
index a9b7fc06c434..83b84ffec27d 100644
--- a/drivers/mmc/host/sdhci-of-at91.c
+++ b/drivers/mmc/host/sdhci-of-at91.c
@@ -29,6 +29,9 @@
#include "sdhci-pltfm.h"
+#define SDMMC_MC1R 0x204
+#define SDMMC_MC1R_DDR BIT(3)
+#define SDMMC_MC1R_FCD BIT(7)
#define SDMMC_CACR 0x230
#define SDMMC_CACR_CAPWREN BIT(0)
#define SDMMC_CACR_KEY (0x46 << 8)
@@ -41,6 +44,15 @@ struct sdhci_at91_priv {
struct clk *mainck;
};
+static void sdhci_at91_set_force_card_detect(struct sdhci_host *host)
+{
+ u8 mc1r;
+
+ mc1r = readb(host->ioaddr + SDMMC_MC1R);
+ mc1r |= SDMMC_MC1R_FCD;
+ writeb(mc1r, host->ioaddr + SDMMC_MC1R);
+}
+
static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
{
u16 clk;
@@ -85,11 +97,45 @@ static void sdhci_at91_set_clock(struct sdhci_host *host, unsigned int clock)
sdhci_writew(host, clk, SDHCI_CLOCK_CONTROL);
}
+/*
+ * In this specific implementation of the SDHCI controller, the power register
+ * needs to have a valid voltage set even when the power supply is managed by
+ * an external regulator.
+ */
+static void sdhci_at91_set_power(struct sdhci_host *host, unsigned char mode,
+ unsigned short vdd)
+{
+ if (!IS_ERR(host->mmc->supply.vmmc)) {
+ struct mmc_host *mmc = host->mmc;
+
+ spin_unlock_irq(&host->lock);
+ mmc_regulator_set_ocr(mmc, mmc->supply.vmmc, vdd);
+ spin_lock_irq(&host->lock);
+ }
+ sdhci_set_power_noreg(host, mode, vdd);
+}
+
+void sdhci_at91_set_uhs_signaling(struct sdhci_host *host, unsigned int timing)
+{
+ if (timing == MMC_TIMING_MMC_DDR52)
+ sdhci_writeb(host, SDMMC_MC1R_DDR, SDMMC_MC1R);
+ sdhci_set_uhs_signaling(host, timing);
+}
+
+static void sdhci_at91_reset(struct sdhci_host *host, u8 mask)
+{
+ sdhci_reset(host, mask);
+
+ if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ sdhci_at91_set_force_card_detect(host);
+}
+
static const struct sdhci_ops sdhci_at91_sama5d2_ops = {
.set_clock = sdhci_at91_set_clock,
.set_bus_width = sdhci_set_bus_width,
- .reset = sdhci_reset,
- .set_uhs_signaling = sdhci_set_uhs_signaling,
+ .reset = sdhci_at91_reset,
+ .set_uhs_signaling = sdhci_at91_set_uhs_signaling,
+ .set_power = sdhci_at91_set_power,
};
static const struct sdhci_pltfm_data soc_data_sama5d2 = {
@@ -294,6 +340,21 @@ static int sdhci_at91_probe(struct platform_device *pdev)
host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
}
+ /*
+ * If the device attached to the MMC bus is not removable, it is safer
+ * to set the Force Card Detect bit. People often don't connect the
+ * card detect signal and use this pin for another purpose. If the card
+ * detect pin is not muxed to SDHCI controller, a default value is
+ * used. This value can be different from a SoC revision to another
+ * one. Problems come when this default value is not card present. To
+ * avoid this case, if the device is non removable then the card
+ * detection procedure using the SDMCC_CD signal is bypassed.
+ * This bit is reset when a software reset for all command is performed
+ * so we need to implement our own reset function to set back this bit.
+ */
+ if (host->mmc->caps & MMC_CAP_NONREMOVABLE)
+ sdhci_at91_set_force_card_detect(host);
+
pm_runtime_put_autosuspend(&pdev->dev);
return 0;
diff --git a/drivers/mmc/host/sdhci-of-esdhc.c b/drivers/mmc/host/sdhci-of-esdhc.c
index 1bb11e4a9fe5..3c27401cf7fe 100644
--- a/drivers/mmc/host/sdhci-of-esdhc.c
+++ b/drivers/mmc/host/sdhci-of-esdhc.c
@@ -559,16 +559,19 @@ static const struct sdhci_ops sdhci_esdhc_le_ops = {
};
static const struct sdhci_pltfm_data sdhci_esdhc_be_pdata = {
- .quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION
- | SDHCI_QUIRK_NO_CARD_NO_RESET
- | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+ .quirks = ESDHC_DEFAULT_QUIRKS |
+#ifdef CONFIG_PPC
+ SDHCI_QUIRK_BROKEN_CARD_DETECTION |
+#endif
+ SDHCI_QUIRK_NO_CARD_NO_RESET |
+ SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.ops = &sdhci_esdhc_be_ops,
};
static const struct sdhci_pltfm_data sdhci_esdhc_le_pdata = {
- .quirks = ESDHC_DEFAULT_QUIRKS | SDHCI_QUIRK_BROKEN_CARD_DETECTION
- | SDHCI_QUIRK_NO_CARD_NO_RESET
- | SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
+ .quirks = ESDHC_DEFAULT_QUIRKS |
+ SDHCI_QUIRK_NO_CARD_NO_RESET |
+ SDHCI_QUIRK_NO_ENDATTR_IN_NOPDESC,
.ops = &sdhci_esdhc_le_ops,
};
@@ -623,8 +626,7 @@ static int sdhci_esdhc_probe(struct platform_device *pdev)
of_device_is_compatible(np, "fsl,p5020-esdhc") ||
of_device_is_compatible(np, "fsl,p4080-esdhc") ||
of_device_is_compatible(np, "fsl,p1020-esdhc") ||
- of_device_is_compatible(np, "fsl,t1040-esdhc") ||
- of_device_is_compatible(np, "fsl,ls1021a-esdhc"))
+ of_device_is_compatible(np, "fsl,t1040-esdhc"))
host->quirks &= ~SDHCI_QUIRK_BROKEN_CARD_DETECTION;
if (of_device_is_compatible(np, "fsl,ls1021a-esdhc"))
diff --git a/drivers/mmc/host/sdhci-pci-core.c b/drivers/mmc/host/sdhci-pci-core.c
index 1d9e00a00e9f..b0b9ceb0ab01 100644
--- a/drivers/mmc/host/sdhci-pci-core.c
+++ b/drivers/mmc/host/sdhci-pci-core.c
@@ -412,6 +412,8 @@ static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode,
if (mode == MMC_POWER_OFF)
return;
+ spin_unlock_irq(&host->lock);
+
/*
* Bus power might not enable after D3 -> D0 transition due to the
* present state not yet having propagated. Retry for up to 2ms.
@@ -424,6 +426,8 @@ static void sdhci_intel_set_power(struct sdhci_host *host, unsigned char mode,
reg |= SDHCI_POWER_ON;
sdhci_writeb(host, reg, SDHCI_POWER_CONTROL);
}
+
+ spin_lock_irq(&host->lock);
}
static const struct sdhci_ops sdhci_intel_byt_ops = {
diff --git a/drivers/mmc/host/sdhci.c b/drivers/mmc/host/sdhci.c
index d92c37abada8..840a695a0dcb 100644
--- a/drivers/mmc/host/sdhci.c
+++ b/drivers/mmc/host/sdhci.c
@@ -1372,7 +1372,9 @@ void sdhci_set_clock(struct sdhci_host *host, unsigned int clock)
return;
}
timeout--;
- mdelay(1);
+ spin_unlock_irq(&host->lock);
+ usleep_range(900, 1100);
+ spin_lock_irq(&host->lock);
}
clk |= SDHCI_CLOCK_CARD_EN;
@@ -1822,6 +1824,9 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
struct sdhci_host *host = mmc_priv(mmc);
unsigned long flags;
+ if (enable)
+ pm_runtime_get_noresume(host->mmc->parent);
+
spin_lock_irqsave(&host->lock, flags);
if (enable)
host->flags |= SDHCI_SDIO_IRQ_ENABLED;
@@ -1830,6 +1835,9 @@ static void sdhci_enable_sdio_irq(struct mmc_host *mmc, int enable)
sdhci_enable_sdio_irq_nolock(host, enable);
spin_unlock_irqrestore(&host->lock, flags);
+
+ if (!enable)
+ pm_runtime_put_noidle(host->mmc->parent);
}
static int sdhci_start_signal_voltage_switch(struct mmc_host *mmc,
diff --git a/drivers/mmc/host/ushc.c b/drivers/mmc/host/ushc.c
index d2c386f09d69..1d843357422e 100644
--- a/drivers/mmc/host/ushc.c
+++ b/drivers/mmc/host/ushc.c
@@ -426,6 +426,9 @@ static int ushc_probe(struct usb_interface *intf, const struct usb_device_id *id
struct ushc_data *ushc;
int ret;
+ if (intf->cur_altsetting->desc.bNumEndpoints < 1)
+ return -ENODEV;
+
mmc = mmc_alloc_host(sizeof(struct ushc_data), &intf->dev);
if (mmc == NULL)
return -ENOMEM;
generated by cgit v1.2.3 (git 2.0.4) at 2024-08-18 14:04:56 +0000