diff options
| author | Wolfram Sang <wsa+renesas@sang-engineering.com> | 2018-08-06 12:40:05 +0200 |
|---|---|---|
| committer | Tejun Heo <tj@kernel.org> | 2018-08-06 19:25:01 +0200 |
| commit | e207610fffbc339d14c663a6966454b8e9b2deff (patch) | |
| tree | 352fa5c957143ee3c9398f8851827491a6574cf9 /drivers/ata/sata_rcar.c | |
| parent | Revert "ata: ahci_platform: allow disabling of hotplug to save power" (diff) | |
| download | linux-e207610fffbc339d14c663a6966454b8e9b2deff.tar.xz linux-e207610fffbc339d14c663a6966454b8e9b2deff.zip | |
ata: sata_rcar: really mask all interrupts on Gen2 and later
Since R-Car Gen2, a new bit has been introduced to the interrupt mask
register. Update the code to handle it properly as well.
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Reviewed-by: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Diffstat (limited to 'drivers/ata/sata_rcar.c')
| -rw-r--r-- | drivers/ata/sata_rcar.c | 20 |
1 files changed, 13 insertions, 7 deletions
diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c index 3b8ed10bfb8f..1ad168f76ef3 100644 --- a/drivers/ata/sata_rcar.c +++ b/drivers/ata/sata_rcar.c @@ -109,6 +109,8 @@ #define SATAINTMASK_ERRMSK BIT(2) #define SATAINTMASK_ERRCRTMSK BIT(1) #define SATAINTMASK_ATAMSK BIT(0) +#define SATAINTMASK_ALL_GEN1 0x7ff +#define SATAINTMASK_ALL_GEN2 0xfff #define SATA_RCAR_INT_MASK (SATAINTMASK_SERRMSK | \ SATAINTMASK_ATAMSK) @@ -152,6 +154,7 @@ enum sata_rcar_type { struct sata_rcar_priv { void __iomem *base; + u32 sataint_mask; enum sata_rcar_type type; }; @@ -225,7 +228,7 @@ static void sata_rcar_freeze(struct ata_port *ap) struct sata_rcar_priv *priv = ap->host->private_data; /* mask */ - iowrite32(0x7ff, priv->base + SATAINTMASK_REG); + iowrite32(priv->sataint_mask, priv->base + SATAINTMASK_REG); ata_sff_freeze(ap); } @@ -241,7 +244,7 @@ static void sata_rcar_thaw(struct ata_port *ap) ata_sff_thaw(ap); /* unmask */ - iowrite32(0x7ff & ~SATA_RCAR_INT_MASK, base + SATAINTMASK_REG); + iowrite32(priv->sataint_mask & ~SATA_RCAR_INT_MASK, base + SATAINTMASK_REG); } static void sata_rcar_ioread16_rep(void __iomem *reg, void *buffer, int count) @@ -735,7 +738,7 @@ static irqreturn_t sata_rcar_interrupt(int irq, void *dev_instance) if (!sataintstat) goto done; /* ack */ - iowrite32(~sataintstat & 0x7ff, base + SATAINTSTAT_REG); + iowrite32(~sataintstat & priv->sataint_mask, base + SATAINTSTAT_REG); ap = host->ports[0]; @@ -808,7 +811,7 @@ static void sata_rcar_init_module(struct sata_rcar_priv *priv) /* ack and mask */ iowrite32(0, base + SATAINTSTAT_REG); - iowrite32(0x7ff, base + SATAINTMASK_REG); + iowrite32(priv->sataint_mask, base + SATAINTMASK_REG); /* enable interrupts */ iowrite32(ATAPI_INT_ENABLE_SATAINT, base + ATAPI_INT_ENABLE_REG); @@ -818,9 +821,12 @@ static void sata_rcar_init_controller(struct ata_host *host) { struct sata_rcar_priv *priv = host->private_data; + priv->sataint_mask = SATAINTMASK_ALL_GEN2; + /* reset and setup phy */ switch (priv->type) { case RCAR_GEN1_SATA: + priv->sataint_mask = SATAINTMASK_ALL_GEN1; sata_rcar_gen1_phy_init(priv); break; case RCAR_GEN2_SATA: @@ -948,7 +954,7 @@ static int sata_rcar_remove(struct platform_device *pdev) iowrite32(0, base + ATAPI_INT_ENABLE_REG); /* ack and mask */ iowrite32(0, base + SATAINTSTAT_REG); - iowrite32(0x7ff, base + SATAINTMASK_REG); + iowrite32(priv->sataint_mask, base + SATAINTMASK_REG); pm_runtime_put(&pdev->dev); pm_runtime_disable(&pdev->dev); @@ -969,7 +975,7 @@ static int sata_rcar_suspend(struct device *dev) /* disable interrupts */ iowrite32(0, base + ATAPI_INT_ENABLE_REG); /* mask */ - iowrite32(0x7ff, base + SATAINTMASK_REG); + iowrite32(priv->sataint_mask, base + SATAINTMASK_REG); pm_runtime_put(dev); } @@ -994,7 +1000,7 @@ static int sata_rcar_resume(struct device *dev) } else { /* ack and mask */ iowrite32(0, base + SATAINTSTAT_REG); - iowrite32(0x7ff, base + SATAINTMASK_REG); + iowrite32(priv->sataint_mask, base + SATAINTMASK_REG); /* enable interrupts */ iowrite32(ATAPI_INT_ENABLE_SATAINT, |