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authorLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 14:11:41 -0800
committerLinus Torvalds <torvalds@linux-foundation.org>2017-11-15 14:11:41 -0800
commit1bc03573e1c9024d4e4be97df4a1e0931edbae2c (patch)
treee15933000f9d671114eb739a25f27cb168b0f948 /drivers/ata
parent1be2172e96e33bfa22a5c7a651f768ef30ce3984 (diff)
parent5bca462d2d18b1c9ec86c7985753134f06fa5cd2 (diff)
Merge branch 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata
Pull libata updates from Tejun Heo: "Nothing too interesting or alarming. Other than a new power saving mode addition to ahci and crash fix on a tracepoint, all changes are trivial or device-specific" * 'for-4.15' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata: (22 commits) ahci: imx: Handle increased read failures for IMX53 temperature sensor in low frequency mode. ata: sata_dwc_460ex: Propagate platform device ID to DMA driver ata: fixes kernel crash while tracing ata_eh_link_autopsy event ata: pata_pdc2027x: Fix space before '[' error. libata: fix spelling mistake: 'ambigious' -> 'ambiguous' ata: ceva: Add SMMU support for SATA IP ata: ceva: Correct the suspend and resume logic for SATA ata: ceva: Correct the AXI bus configuration for SATA ports ata: ceva: Add CCI support for SATA if CCI is enabled ata: ceva: Make RxWaterMark value as module parameter ata: ceva: Disable Device Sleep capability ata: ceva: Add gen 3 mode support in driver ata: ceva: Move sata port phy oob settings to device-tree devicetree: bindings: Add sata port phy config parameters in ahci-ceva ata: mark expected switch fall-throughs ata: sata_mv: remove a redundant assignment to pointer ehi ahci: Add support for Cavium's fifth generation SATA controller ata: sata_rcar: Use of_device_get_match_data() helper libata: make ata_port_type const libata: make static arrays const, reduces object code size ...
Diffstat (limited to 'drivers/ata')
-rw-r--r--drivers/ata/ahci.c9
-rw-r--r--drivers/ata/ahci_ceva.c197
-rw-r--r--drivers/ata/ahci_imx.c2
-rw-r--r--drivers/ata/libahci_platform.c1
-rw-r--r--drivers/ata/libata-core.c8
-rw-r--r--drivers/ata/libata-eh.c14
-rw-r--r--drivers/ata/libata-scsi.c19
-rw-r--r--drivers/ata/libata.h2
-rw-r--r--drivers/ata/pata_artop.c2
-rw-r--r--drivers/ata/pata_atp867x.c2
-rw-r--r--drivers/ata/pata_pdc2027x.c6
-rw-r--r--drivers/ata/sata_dwc_460ex.c1
-rw-r--r--drivers/ata/sata_mv.c8
-rw-r--r--drivers/ata/sata_rcar.c7
14 files changed, 204 insertions, 74 deletions
diff --git a/drivers/ata/ahci.c b/drivers/ata/ahci.c
index 9f78bb03bb76..5443cb71d7ba 100644
--- a/drivers/ata/ahci.c
+++ b/drivers/ata/ahci.c
@@ -57,6 +57,7 @@ enum {
AHCI_PCI_BAR_STA2X11 = 0,
AHCI_PCI_BAR_CAVIUM = 0,
AHCI_PCI_BAR_ENMOTUS = 2,
+ AHCI_PCI_BAR_CAVIUM_GEN5 = 4,
AHCI_PCI_BAR_STANDARD = 5,
};
@@ -1570,8 +1571,12 @@ static int ahci_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
ahci_pci_bar = AHCI_PCI_BAR_STA2X11;
else if (pdev->vendor == 0x1c44 && pdev->device == 0x8000)
ahci_pci_bar = AHCI_PCI_BAR_ENMOTUS;
- else if (pdev->vendor == 0x177d && pdev->device == 0xa01c)
- ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
+ else if (pdev->vendor == PCI_VENDOR_ID_CAVIUM) {
+ if (pdev->device == 0xa01c)
+ ahci_pci_bar = AHCI_PCI_BAR_CAVIUM;
+ if (pdev->device == 0xa084)
+ ahci_pci_bar = AHCI_PCI_BAR_CAVIUM_GEN5;
+ }
/* acquire resources */
rc = pcim_enable_device(pdev);
diff --git a/drivers/ata/ahci_ceva.c b/drivers/ata/ahci_ceva.c
index 207649d323c5..5ecc9d46cb54 100644
--- a/drivers/ata/ahci_ceva.c
+++ b/drivers/ata/ahci_ceva.c
@@ -32,15 +32,27 @@
#define AHCI_VEND_PP3C 0xB0
#define AHCI_VEND_PP4C 0xB4
#define AHCI_VEND_PP5C 0xB8
+#define AHCI_VEND_AXICC 0xBC
#define AHCI_VEND_PAXIC 0xC0
#define AHCI_VEND_PTC 0xC8
/* Vendor Specific Register bit definitions */
#define PAXIC_ADBW_BW64 0x1
-#define PAXIC_MAWIDD (1 << 8)
-#define PAXIC_MARIDD (1 << 16)
+#define PAXIC_MAWID(i) (((i) * 2) << 4)
+#define PAXIC_MARID(i) (((i) * 2) << 12)
+#define PAXIC_MARIDD(i) ((((i) * 2) + 1) << 16)
+#define PAXIC_MAWIDD(i) ((((i) * 2) + 1) << 8)
#define PAXIC_OTL (0x4 << 20)
+/* Register bit definitions for cache control */
+#define AXICC_ARCA_VAL (0xF << 0)
+#define AXICC_ARCF_VAL (0xF << 4)
+#define AXICC_ARCH_VAL (0xF << 8)
+#define AXICC_ARCP_VAL (0xF << 12)
+#define AXICC_AWCFD_VAL (0xF << 16)
+#define AXICC_AWCD_VAL (0xF << 20)
+#define AXICC_AWCF_VAL (0xF << 24)
+
#define PCFG_TPSS_VAL (0x32 << 16)
#define PCFG_TPRS_VAL (0x2 << 12)
#define PCFG_PAD_VAL 0x2
@@ -50,21 +62,6 @@
#define PPCFG_PSS_EN (1 << 29)
#define PPCFG_ESDF_EN (1 << 31)
-#define PP2C_CIBGMN 0x0F
-#define PP2C_CIBGMX (0x25 << 8)
-#define PP2C_CIBGN (0x18 << 16)
-#define PP2C_CINMP (0x29 << 24)
-
-#define PP3C_CWBGMN 0x04
-#define PP3C_CWBGMX (0x0B << 8)
-#define PP3C_CWBGN (0x08 << 16)
-#define PP3C_CWNMP (0x0F << 24)
-
-#define PP4C_BMX 0x0a
-#define PP4C_BNM (0x08 << 8)
-#define PP4C_SFD (0x4a << 16)
-#define PP4C_PTST (0x06 << 24)
-
#define PP5C_RIT 0x60216
#define PP5C_RCT (0x7f0 << 20)
@@ -75,6 +72,7 @@
#define PORT1_BASE 0x180
/* Port Control Register Bit Definitions */
+#define PORT_SCTL_SPD_GEN3 (0x3 << 4)
#define PORT_SCTL_SPD_GEN2 (0x2 << 4)
#define PORT_SCTL_SPD_GEN1 (0x1 << 4)
#define PORT_SCTL_IPM (0x3 << 8)
@@ -85,13 +83,43 @@
#define DRV_NAME "ahci-ceva"
#define CEVA_FLAG_BROKEN_GEN2 1
+static unsigned int rx_watermark = PTC_RX_WM_VAL;
+module_param(rx_watermark, uint, 0644);
+MODULE_PARM_DESC(rx_watermark, "RxWaterMark value (0 - 0x80)");
+
struct ceva_ahci_priv {
struct platform_device *ahci_pdev;
+ /* Port Phy2Cfg Register */
+ u32 pp2c[NR_PORTS];
+ u32 pp3c[NR_PORTS];
+ u32 pp4c[NR_PORTS];
+ u32 pp5c[NR_PORTS];
+ /* Axi Cache Control Register */
+ u32 axicc;
+ bool is_cci_enabled;
int flags;
};
+static unsigned int ceva_ahci_read_id(struct ata_device *dev,
+ struct ata_taskfile *tf, u16 *id)
+{
+ u32 err_mask;
+
+ err_mask = ata_do_dev_read_id(dev, tf, id);
+ if (err_mask)
+ return err_mask;
+ /*
+ * Since CEVA controller does not support device sleep feature, we
+ * need to clear DEVSLP (bit 8) in word78 of the IDENTIFY DEVICE data.
+ */
+ id[ATA_ID_FEATURE_SUPP] &= cpu_to_le16(~(1 << 8));
+
+ return 0;
+}
+
static struct ata_port_operations ahci_ceva_ops = {
.inherits = &ahci_platform_ops,
+ .read_id = ceva_ahci_read_id,
};
static const struct ata_port_info ahci_ceva_port_info = {
@@ -108,14 +136,6 @@ static void ahci_ceva_setup(struct ahci_host_priv *hpriv)
u32 tmp;
int i;
- /*
- * AXI Data bus width to 64
- * Set Mem Addr Read, Write ID for data transfers
- * Transfer limit to 72 DWord
- */
- tmp = PAXIC_ADBW_BW64 | PAXIC_MAWIDD | PAXIC_MARIDD | PAXIC_OTL;
- writel(tmp, mmio + AHCI_VEND_PAXIC);
-
/* Set AHCI Enable */
tmp = readl(mmio + HOST_CTL);
tmp |= HOST_AHCI_EN;
@@ -126,32 +146,48 @@ static void ahci_ceva_setup(struct ahci_host_priv *hpriv)
tmp = PCFG_TPSS_VAL | PCFG_TPRS_VAL | (PCFG_PAD_VAL + i);
writel(tmp, mmio + AHCI_VEND_PCFG);
+ /*
+ * AXI Data bus width to 64
+ * Set Mem Addr Read, Write ID for data transfers
+ * Set Mem Addr Read ID, Write ID for non-data transfers
+ * Transfer limit to 72 DWord
+ */
+ tmp = PAXIC_ADBW_BW64 | PAXIC_MAWIDD(i) | PAXIC_MARIDD(i) |
+ PAXIC_MAWID(i) | PAXIC_MARID(i) | PAXIC_OTL;
+ writel(tmp, mmio + AHCI_VEND_PAXIC);
+
+ /* Set AXI cache control register if CCi is enabled */
+ if (cevapriv->is_cci_enabled) {
+ tmp = readl(mmio + AHCI_VEND_AXICC);
+ tmp |= AXICC_ARCA_VAL | AXICC_ARCF_VAL |
+ AXICC_ARCH_VAL | AXICC_ARCP_VAL |
+ AXICC_AWCFD_VAL | AXICC_AWCD_VAL |
+ AXICC_AWCF_VAL;
+ writel(tmp, mmio + AHCI_VEND_AXICC);
+ }
+
/* Port Phy Cfg register enables */
tmp = PPCFG_TTA | PPCFG_PSS_EN | PPCFG_ESDF_EN;
writel(tmp, mmio + AHCI_VEND_PPCFG);
/* Phy Control OOB timing parameters COMINIT */
- tmp = PP2C_CIBGMN | PP2C_CIBGMX | PP2C_CIBGN | PP2C_CINMP;
- writel(tmp, mmio + AHCI_VEND_PP2C);
+ writel(cevapriv->pp2c[i], mmio + AHCI_VEND_PP2C);
/* Phy Control OOB timing parameters COMWAKE */
- tmp = PP3C_CWBGMN | PP3C_CWBGMX | PP3C_CWBGN | PP3C_CWNMP;
- writel(tmp, mmio + AHCI_VEND_PP3C);
+ writel(cevapriv->pp3c[i], mmio + AHCI_VEND_PP3C);
/* Phy Control Burst timing setting */
- tmp = PP4C_BMX | PP4C_BNM | PP4C_SFD | PP4C_PTST;
- writel(tmp, mmio + AHCI_VEND_PP4C);
+ writel(cevapriv->pp4c[i], mmio + AHCI_VEND_PP4C);
/* Rate Change Timer and Retry Interval Timer setting */
- tmp = PP5C_RIT | PP5C_RCT;
- writel(tmp, mmio + AHCI_VEND_PP5C);
+ writel(cevapriv->pp5c[i], mmio + AHCI_VEND_PP5C);
/* Rx Watermark setting */
- tmp = PTC_RX_WM_VAL | PTC_RSVD;
+ tmp = rx_watermark | PTC_RSVD;
writel(tmp, mmio + AHCI_VEND_PTC);
- /* Default to Gen 2 Speed and Gen 1 if Gen2 is broken */
- tmp = PORT_SCTL_SPD_GEN2 | PORT_SCTL_IPM;
+ /* Default to Gen 3 Speed and Gen 1 if Gen2 is broken */
+ tmp = PORT_SCTL_SPD_GEN3 | PORT_SCTL_IPM;
if (cevapriv->flags & CEVA_FLAG_BROKEN_GEN2)
tmp = PORT_SCTL_SPD_GEN1 | PORT_SCTL_IPM;
writel(tmp, mmio + PORT_SCR_CTL + PORT_BASE + PORT_OFFSET * i);
@@ -168,6 +204,7 @@ static int ceva_ahci_probe(struct platform_device *pdev)
struct device *dev = &pdev->dev;
struct ahci_host_priv *hpriv;
struct ceva_ahci_priv *cevapriv;
+ enum dev_dma_attr attr;
int rc;
cevapriv = devm_kzalloc(dev, sizeof(*cevapriv), GFP_KERNEL);
@@ -187,6 +224,65 @@ static int ceva_ahci_probe(struct platform_device *pdev)
if (of_property_read_bool(np, "ceva,broken-gen2"))
cevapriv->flags = CEVA_FLAG_BROKEN_GEN2;
+ /* Read OOB timing value for COMINIT from device-tree */
+ if (of_property_read_u8_array(np, "ceva,p0-cominit-params",
+ (u8 *)&cevapriv->pp2c[0], 4) < 0) {
+ dev_warn(dev, "ceva,p0-cominit-params property not defined\n");
+ return -EINVAL;
+ }
+
+ if (of_property_read_u8_array(np, "ceva,p1-cominit-params",
+ (u8 *)&cevapriv->pp2c[1], 4) < 0) {
+ dev_warn(dev, "ceva,p1-cominit-params property not defined\n");
+ return -EINVAL;
+ }
+
+ /* Read OOB timing value for COMWAKE from device-tree*/
+ if (of_property_read_u8_array(np, "ceva,p0-comwake-params",
+ (u8 *)&cevapriv->pp3c[0], 4) < 0) {
+ dev_warn(dev, "ceva,p0-comwake-params property not defined\n");
+ return -EINVAL;
+ }
+
+ if (of_property_read_u8_array(np, "ceva,p1-comwake-params",
+ (u8 *)&cevapriv->pp3c[1], 4) < 0) {
+ dev_warn(dev, "ceva,p1-comwake-params property not defined\n");
+ return -EINVAL;
+ }
+
+ /* Read phy BURST timing value from device-tree */
+ if (of_property_read_u8_array(np, "ceva,p0-burst-params",
+ (u8 *)&cevapriv->pp4c[0], 4) < 0) {
+ dev_warn(dev, "ceva,p0-burst-params property not defined\n");
+ return -EINVAL;
+ }
+
+ if (of_property_read_u8_array(np, "ceva,p1-burst-params",
+ (u8 *)&cevapriv->pp4c[1], 4) < 0) {
+ dev_warn(dev, "ceva,p1-burst-params property not defined\n");
+ return -EINVAL;
+ }
+
+ /* Read phy RETRY interval timing value from device-tree */
+ if (of_property_read_u16_array(np, "ceva,p0-retry-params",
+ (u16 *)&cevapriv->pp5c[0], 2) < 0) {
+ dev_warn(dev, "ceva,p0-retry-params property not defined\n");
+ return -EINVAL;
+ }
+
+ if (of_property_read_u16_array(np, "ceva,p1-retry-params",
+ (u16 *)&cevapriv->pp5c[1], 2) < 0) {
+ dev_warn(dev, "ceva,p1-retry-params property not defined\n");
+ return -EINVAL;
+ }
+
+ /*
+ * Check if CCI is enabled for SATA. The DEV_DMA_COHERENT is returned
+ * if CCI is enabled, so check for DEV_DMA_COHERENT.
+ */
+ attr = device_get_dma_attr(dev);
+ cevapriv->is_cci_enabled = (attr == DEV_DMA_COHERENT);
+
hpriv->plat_data = cevapriv;
/* CEVA specific initialization */
@@ -206,12 +302,37 @@ disable_resources:
static int __maybe_unused ceva_ahci_suspend(struct device *dev)
{
- return ahci_platform_suspend_host(dev);
+ return ahci_platform_suspend(dev);
}
static int __maybe_unused ceva_ahci_resume(struct device *dev)
{
- return ahci_platform_resume_host(dev);
+ struct ata_host *host = dev_get_drvdata(dev);
+ struct ahci_host_priv *hpriv = host->private_data;
+ int rc;
+
+ rc = ahci_platform_enable_resources(hpriv);
+ if (rc)
+ return rc;
+
+ /* Configure CEVA specific config before resuming HBA */
+ ahci_ceva_setup(hpriv);
+
+ rc = ahci_platform_resume_host(dev);
+ if (rc)
+ goto disable_resources;
+
+ /* We resumed so update PM runtime state */
+ pm_runtime_disable(dev);
+ pm_runtime_set_active(dev);
+ pm_runtime_enable(dev);
+
+ return 0;
+
+disable_resources:
+ ahci_platform_disable_resources(hpriv);
+
+ return rc;
}
static SIMPLE_DEV_PM_OPS(ahci_ceva_pm_ops, ceva_ahci_suspend, ceva_ahci_resume);
diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c
index 787567e840bd..a58bcc069c54 100644
--- a/drivers/ata/ahci_imx.c
+++ b/drivers/ata/ahci_imx.c
@@ -230,7 +230,7 @@ static int read_adc_sum(void *dev, u16 rtune_ctl_reg, void __iomem * mmio)
{
u16 adc_out_reg, read_sum;
u32 index, read_attempt;
- const u32 attempt_limit = 100;
+ const u32 attempt_limit = 200;
imx_phy_reg_addressing(SATA_PHY_CR_CLOCK_RTUNE_CTL, mmio);
imx_phy_reg_write(rtune_ctl_reg, mmio);
diff --git a/drivers/ata/libahci_platform.c b/drivers/ata/libahci_platform.c
index a270a1173c8c..341d0ef82cbd 100644
--- a/drivers/ata/libahci_platform.c
+++ b/drivers/ata/libahci_platform.c
@@ -295,6 +295,7 @@ static int ahci_platform_get_phy(struct ahci_host_priv *hpriv, u32 port,
node->name);
break;
}
+ /* fall through */
case -ENODEV:
/* continue normally */
hpriv->phys[port] = NULL;
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index b8ac4902d312..2a882929de4a 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1879,6 +1879,7 @@ retry:
switch (class) {
case ATA_DEV_SEMB:
class = ATA_DEV_ATA; /* some hard drives report SEMB sig */
+ /* fall through */
case ATA_DEV_ATA:
case ATA_DEV_ZAC:
tf.command = ATA_CMD_ID_ATA;
@@ -2975,6 +2976,7 @@ int ata_bus_probe(struct ata_port *ap)
case -ENODEV:
/* give it just one more chance */
tries[dev->devno] = min(tries[dev->devno], 1);
+ /* fall through */
case -EIO:
if (tries[dev->devno] == 1) {
/* This is the last chance, better to slow
@@ -3462,6 +3464,7 @@ int ata_down_xfermask_limit(struct ata_device *dev, unsigned int sel)
case ATA_DNXFER_FORCE_PIO0:
pio_mask &= 1;
+ /* fall through */
case ATA_DNXFER_FORCE_PIO:
mwdma_mask = 0;
udma_mask = 0;
@@ -3964,6 +3967,7 @@ int sata_link_scr_lpm(struct ata_link *link, enum ata_lpm_policy policy,
scontrol &= ~(0x1 << 8);
scontrol |= (0x6 << 8);
break;
+ case ATA_LPM_MED_POWER_WITH_DIPM:
case ATA_LPM_MIN_POWER:
if (ata_link_nr_enabled(link) > 0)
/* no restrictions on LPM transitions */
@@ -5823,7 +5827,7 @@ void ata_host_resume(struct ata_host *host)
}
#endif
-struct device_type ata_port_type = {
+const struct device_type ata_port_type = {
.name = "ata_port",
#ifdef CONFIG_PM
.pm = &ata_port_pm_ops,
@@ -6903,7 +6907,7 @@ static int __init ata_parse_force_one(char **cur,
return -EINVAL;
}
if (nr_matches > 1) {
- *reason = "ambigious value";
+ *reason = "ambiguous value";
return -EINVAL;
}
diff --git a/drivers/ata/libata-eh.c b/drivers/ata/libata-eh.c
index ece6fd91a947..11c3137d7b0a 100644
--- a/drivers/ata/libata-eh.c
+++ b/drivers/ata/libata-eh.c
@@ -2264,8 +2264,8 @@ static void ata_eh_link_autopsy(struct ata_link *link)
if (dev->flags & ATA_DFLAG_DUBIOUS_XFER)
eflags |= ATA_EFLAG_DUBIOUS_XFER;
ehc->i.action |= ata_eh_speed_down(dev, eflags, all_err_mask);
+ trace_ata_eh_link_autopsy(dev, ehc->i.action, all_err_mask);
}
- trace_ata_eh_link_autopsy(dev, ehc->i.action, all_err_mask);
DPRINTK("EXIT\n");
}
@@ -3454,9 +3454,9 @@ static int ata_eh_maybe_retry_flush(struct ata_device *dev)
* @r_failed_dev: out parameter for failed device
*
* Enable SATA Interface power management. This will enable
- * Device Interface Power Management (DIPM) for min_power
- * policy, and then call driver specific callbacks for
- * enabling Host Initiated Power management.
+ * Device Interface Power Management (DIPM) for min_power and
+ * medium_power_with_dipm policies, and then call driver specific
+ * callbacks for enabling Host Initiated Power management.
*
* LOCKING:
* EH context.
@@ -3502,7 +3502,7 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
hints &= ~ATA_LPM_HIPM;
/* disable DIPM before changing link config */
- if (policy != ATA_LPM_MIN_POWER && dipm) {
+ if (policy < ATA_LPM_MED_POWER_WITH_DIPM && dipm) {
err_mask = ata_dev_set_feature(dev,
SETFEATURES_SATA_DISABLE, SATA_DIPM);
if (err_mask && err_mask != AC_ERR_DEV) {
@@ -3545,7 +3545,7 @@ static int ata_eh_set_lpm(struct ata_link *link, enum ata_lpm_policy policy,
/* host config updated, enable DIPM if transitioning to MIN_POWER */
ata_for_each_dev(dev, link, ENABLED) {
- if (policy == ATA_LPM_MIN_POWER && !no_dipm &&
+ if (policy >= ATA_LPM_MED_POWER_WITH_DIPM && !no_dipm &&
ata_id_has_dipm(dev->id)) {
err_mask = ata_dev_set_feature(dev,
SETFEATURES_SATA_ENABLE, SATA_DIPM);
@@ -3711,9 +3711,11 @@ static int ata_eh_handle_dev_fail(struct ata_device *dev, int err)
case -ENODEV:
/* device missing or wrong IDENTIFY data, schedule probing */
ehc->i.probe_mask |= (1 << dev->devno);
+ /* fall through */
case -EINVAL:
/* give it just one more chance */
ehc->tries[dev->devno] = min(ehc->tries[dev->devno], 1);
+ /* fall through */
case -EIO:
if (ehc->tries[dev->devno] == 1) {
/* This is the last chance, better to slow
diff --git a/drivers/ata/libata-scsi.c b/drivers/ata/libata-scsi.c
index 44ba292f2cd7..66be961c93a4 100644
--- a/drivers/ata/libata-scsi.c
+++ b/drivers/ata/libata-scsi.c
@@ -106,10 +106,11 @@ static const u8 def_control_mpage[CONTROL_MPAGE_LEN] = {
};
static const char *ata_lpm_policy_names[] = {
- [ATA_LPM_UNKNOWN] = "max_performance",
- [ATA_LPM_MAX_POWER] = "max_performance",
- [ATA_LPM_MED_POWER] = "medium_power",
- [ATA_LPM_MIN_POWER] = "min_power",
+ [ATA_LPM_UNKNOWN] = "max_performance",
+ [ATA_LPM_MAX_POWER] = "max_performance",
+ [ATA_LPM_MED_POWER] = "medium_power",
+ [ATA_LPM_MED_POWER_WITH_DIPM] = "med_power_with_dipm",
+ [ATA_LPM_MIN_POWER] = "min_power",
};
static ssize_t ata_scsi_lpm_store(struct device *device,
@@ -2145,7 +2146,7 @@ static void ata_scsi_rbuf_fill(struct ata_scsi_args *args,
*/
static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
{
- const u8 versions[] = {
+ static const u8 versions[] = {
0x00,
0x60, /* SAM-3 (no version claimed) */
@@ -2155,7 +2156,7 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
0x03,
0x00 /* SPC-3 (no version claimed) */
};
- const u8 versions_zbc[] = {
+ static const u8 versions_zbc[] = {
0x00,
0xA0, /* SAM-5 (no version claimed) */
@@ -2227,7 +2228,7 @@ static unsigned int ata_scsiop_inq_std(struct ata_scsi_args *args, u8 *rbuf)
static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf)
{
int num_pages;
- const u8 pages[] = {
+ static const u8 pages[] = {
0x00, /* page 0x00, this page */
0x80, /* page 0x80, unit serial no page */
0x83, /* page 0x83, device ident page */
@@ -2258,7 +2259,7 @@ static unsigned int ata_scsiop_inq_00(struct ata_scsi_args *args, u8 *rbuf)
*/
static unsigned int ata_scsiop_inq_80(struct ata_scsi_args *args, u8 *rbuf)
{
- const u8 hdr[] = {
+ static const u8 hdr[] = {
0,
0x80, /* this page code */
0,
@@ -2580,7 +2581,7 @@ static unsigned int ata_scsiop_mode_sense(struct ata_scsi_args *args, u8 *rbuf)
{
struct ata_device *dev = args->dev;
u8 *scsicmd = args->cmd->cmnd, *p = rbuf;
- const u8 sat_blk_desc[] = {
+ static const u8 sat_blk_desc[] = {
0, 0, 0, 0, /* number of blocks: sat unspecified */
0,
0, 0x2, 0x0 /* block length: 512 bytes */
diff --git a/drivers/ata/libata.h b/drivers/ata/libata.h
index 08a245b76417..f953cb4bb1ba 100644
--- a/drivers/ata/libata.h
+++ b/drivers/ata/libata.h
@@ -51,7 +51,7 @@ extern int atapi_passthru16;
extern int libata_fua;
extern int libata_noacpi;
extern int libata_allow_tpm;
-extern struct device_type ata_port_type;
+extern const struct device_type ata_port_type;
extern struct ata_link *ata_dev_phys_link(struct ata_device *dev);
extern void ata_force_cbl(struct ata_port *ap);
extern u64 ata_tf_to_lba(const struct ata_taskfile *tf);
diff --git a/drivers/ata/pata_artop.c b/drivers/ata/pata_artop.c
index 96c05c9494fa..6b3355343542 100644
--- a/drivers/ata/pata_artop.c
+++ b/drivers/ata/pata_artop.c
@@ -242,7 +242,7 @@ static void artop6210_set_dmamode (struct ata_port *ap, struct ata_device *adev)
static void artop6260_set_dmamode (struct ata_port *ap, struct ata_device *adev)
{
- unsigned int pio = adev->pio_mode - XFER_PIO_0;
+ unsigned int pio;
struct pci_dev *pdev = to_pci_dev(ap->host->dev);
u8 ultra;
diff --git a/drivers/ata/pata_atp867x.c b/drivers/ata/pata_atp867x.c
index 3ea50dc5ea47..3729e2448eb6 100644
--- a/drivers/ata/pata_atp867x.c
+++ b/drivers/ata/pata_atp867x.c
@@ -171,6 +171,7 @@ static int atp867x_get_active_clocks_shifted(struct ata_port *ap,
default:
printk(KERN_WARNING "ATP867X: active %dclk is invalid. "
"Using 12clk.\n", clk);
+ /* fall through */
case 9 ... 12:
clocks = 7; /* 12 clk */
break;
@@ -203,6 +204,7 @@ static int atp867x_get_recover_clocks_shifted(unsigned int clk)
default:
printk(KERN_WARNING "ATP867X: recover %dclk is invalid. "
"Using default 12clk.\n", clk);
+ /* fall through */
case 12: /* default 12 clk */
clocks = 0;
break;
diff --git a/drivers/ata/pata_pdc2027x.c b/drivers/ata/pata_pdc2027x.c
index 82bfd51692f3..ffd8d33c6e0f 100644
--- a/drivers/ata/pata_pdc2027x.c
+++ b/drivers/ata/pata_pdc2027x.c
@@ -84,7 +84,7 @@ static int pdc2027x_set_mode(struct ata_link *link, struct ata_device **r_failed
*/
static struct pdc2027x_pio_timing {
u8 value0, value1, value2;
-} pdc2027x_pio_timing_tbl [] = {
+} pdc2027x_pio_timing_tbl[] = {
{ 0xfb, 0x2b, 0xac }, /* PIO mode 0 */
{ 0x46, 0x29, 0xa4 }, /* PIO mode 1 */
{ 0x23, 0x26, 0x64 }, /* PIO mode 2 */
@@ -94,7 +94,7 @@ static struct pdc2027x_pio_timing {
static struct pdc2027x_mdma_timing {
u8 value0, value1;
-} pdc2027x_mdma_timing_tbl [] = {
+} pdc2027x_mdma_timing_tbl[] = {
{ 0xdf, 0x5f }, /* MDMA mode 0 */
{ 0x6b, 0x27 }, /* MDMA mode 1 */
{ 0x69, 0x25 }, /* MDMA mode 2 */
@@ -102,7 +102,7 @@ static struct pdc2027x_mdma_timing {
static struct pdc2027x_udma_timing {
u8 value0, value1, value2;
-} pdc2027x_udma_timing_tbl [] = {
+} pdc2027x_udma_timing_tbl[] = {
{ 0x4a, 0x0f, 0xd5 }, /* UDMA mode 0 */
{ 0x3a, 0x0a, 0xd0 }, /* UDMA mode 1 */
{ 0x2a, 0x07, 0xcd }, /* UDMA mode 2 */
diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index ce128d5a6ded..6af4ec3c88c3 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -248,6 +248,7 @@ static int sata_dwc_dma_init_old(struct platform_device *pdev,
return -ENOMEM;
hsdev->dma->dev = &pdev->dev;
+ hsdev->dma->id = pdev->id;
/* Get SATA DMA interrupt number */
hsdev->dma->irq = irq_of_parse_and_map(np, 1);
diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 3b2246dded74..cc208b72b199 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -2387,7 +2387,7 @@ static unsigned int mv_qc_issue(struct ata_queued_cmd *qc)
": attempting PIO w/multiple DRQ: "
"this may fail due to h/w errata\n");
}
- /* drop through */
+ /* fall through */
case ATA_PROT_NODATA:
case ATAPI_PROT_PIO:
case ATAPI_PROT_NODATA:
@@ -2478,20 +2478,18 @@ static unsigned int mv_get_err_pmp_map(struct ata_port *ap)
static void mv_pmp_eh_prep(struct ata_port *ap, unsigned int pmp_map)
{
- struct ata_eh_info *ehi;
unsigned int pmp;
/*
* Initialize EH info for PMPs which saw device errors
*/
- ehi = &ap->link.eh_info;
for (pmp = 0; pmp_map != 0; pmp++) {
unsigned int this_pmp = (1 << pmp);
if (pmp_map & this_pmp) {
struct ata_link *link = &ap->pmp_link[pmp];
+ struct ata_eh_info *ehi = &link->eh_info;
pmp_map &= ~this_pmp;
- ehi = &link->eh_info;
ata_ehi_clear_desc(ehi);
ata_ehi_push_desc(ehi, "dev err");
ehi->err_mask |= AC_ERR_DEV;
@@ -3877,7 +3875,7 @@ static int mv_chip_id(struct ata_host *host, unsigned int board_idx)
" and avoid the final two gigabytes on"
" all RocketRAID BIOS initialized drives.\n");
}
- /* drop through */
+ /* fall through */
case chip_6042:
hpriv->ops = &mv6xxx_ops;
hp_flags |= MV_HP_GEN_IIE;
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index 537d11869069..80ee2f2a50d0 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -872,7 +872,6 @@ MODULE_DEVICE_TABLE(of, sata_rcar_match);
static int sata_rcar_probe(struct platform_device *pdev)
{
- const struct of_device_id *of_id;
struct ata_host *host;
struct sata_rcar_priv *priv;
struct resource *mem;
@@ -888,11 +887,7 @@ static int sata_rcar_probe(struct platform_device *pdev)
if (!priv)
return -ENOMEM;
- of_id = of_match_device(sata_rcar_match, &pdev->dev);
- if (!of_id)
- return -ENODEV;
-
- priv->type = (enum sata_rcar_type)of_id->data;
+ priv->type = (enum sata_rcar_type)of_device_get_match_data(&pdev->dev);
priv->clk = devm_clk_get(&pdev->dev, NULL);
if (IS_ERR(priv->clk)) {
dev_err(&pdev->dev, "failed to get access to sata clock\n");

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