Merge tag 'for-5.13/libata-2021-04-27' of git://git.kernel.dk/linux-block

Pull libata updates from Jens Axboe:
 "Mostly cleanups this time, but also a few additions:

   - kernel-doc cleanups and sanitization (Lee)

   - Spelling fix (Bhaskar)

   - Fix ata_qc_from_tag() return value check in dwc_460ex (Dinghao)

   - Fall-through warning fix (Gustavo)

   - IRQ registration fixes (Sergey)

   - Add AHCI support for Tegra186 (Sowjanya)

   - Add xiling phy support for AHCI (Piyush)

   - SXS disable fix for AHCI for Hisilicon Kunpeng920 (Xingui)

   - pata legacy probe mask support (Maciej)"

* tag 'for-5.13/libata-2021-04-27' of git://git.kernel.dk/linux-block: (54 commits)
  libata: Fix fall-through warnings for Clang
  pata_ipx4xx_cf: Fix unsigned comparison with less than zero
  ata: ahci_tegra: call tegra_powergate_power_off only when PM domain is not present
  ata: ahci_tegra: Add AHCI support for Tegra186
  dt-binding: ata: tegra: Add dt-binding documentation for Tegra186
  dt-bindings: ata: tegra: Convert binding documentation to YAML
  pata_legacy: Add `probe_mask' parameter like with ide-generic
  pata_platform: Document `pio_mask' module parameter
  pata_legacy: Properly document module parameters
  ata: ahci: ceva: Updated code by using dev_err_probe()
  ata: ahci: Disable SXS for Hisilicon Kunpeng920
  ata: libahci_platform: fix IRQ check
  sata_mv: add IRQ checks
  ata: pata_acpi: Fix some incorrect function param descriptions
  ata: libata-acpi: Fix function name and provide description for 'prev_gtf'
  ata: sata_mv: Fix misnaming of 'mv_bmdma_stop()'
  ata: pata_cs5530: Fix misspelling of 'cs5530_init_one()'s 'pdev' param
  ata: pata_legacy: Repair a couple kernel-doc problems
  ata: ata_generic: Fix misspelling of 'ata_generic_init_one()'
  ata: pata_opti: Fix spelling issue of 'val' in 'opti_write_reg()'
  ...

1 files changed, 11 insertions, 7 deletions

diff --git a/drivers/ata/sata_mv.c b/drivers/ata/sata_mv.c
index 664ef658a955..c8867c12c0b8 100644
--- a/drivers/ata/sata_mv.c
+++ b/drivers/ata/sata_mv.c
@@ -1146,9 +1146,8 @@ static void mv_set_irq_coalescing(struct ata_host *host,
 	spin_unlock_irqrestore(&host->lock, flags);
 }
 
-/**
+/*
  *      mv_start_edma - Enable eDMA engine
- *      @base: port base address
  *      @pp: port private data
  *
  *      Verify the local cache of the eDMA state is accurate with a
@@ -1519,7 +1518,7 @@ static void mv_60x1_errata_sata25(struct ata_port *ap, int want_ncq)
 		writel(new, hpriv->base + GPIO_PORT_CTL);
 }
 
-/**
+/*
  *	mv_bmdma_enable - set a magic bit on GEN_IIE to allow bmdma
  *	@ap: Port being initialized
  *
@@ -1918,8 +1917,8 @@ static void mv_bmdma_start(struct ata_queued_cmd *qc)
 }
 
 /**
- *	mv_bmdma_stop - Stop BMDMA transfer
- *	@qc: queued command to stop DMA on.
+ *	mv_bmdma_stop_ap - Stop BMDMA transfer
+ *	@ap: port to stop
  *
  *	Clears the ATA_DMA_START flag in the bmdma control register
  *
@@ -2221,6 +2220,7 @@ static u8 mv_sff_check_status(struct ata_port *ap)
 
 /**
  *	mv_send_fis - Send a FIS, using the "Vendor-Unique FIS" register
+ *	@ap: ATA port to send a FIS
  *	@fis: fis to be sent
  *	@nwords: number of 32-bit words in the fis
  */
@@ -3249,7 +3249,7 @@ static void mv6_reset_flash(struct mv_host_priv *hpriv, void __iomem *mmio)
 	writel(tmp, mmio + GPIO_PORT_CTL);
 }
 
-/**
+/*
  *      mv6_reset_hc - Perform the 6xxx global soft reset
  *      @mmio: base address of the HBA
  *
@@ -3530,7 +3530,7 @@ static void mv_soc_65n_phy_errata(struct mv_host_priv *hpriv,
 	writel(reg, port_mmio + PHY_MODE9_GEN1);
 }
 
-/**
+/*
  *	soc_is_65 - check if the soc is 65 nano device
  *
  *	Detect the type of the SoC, this is done by reading the PHYCFG_OFS
@@ -4097,6 +4097,10 @@ static int mv_platform_probe(struct platform_device *pdev)
 		n_ports = mv_platform_data->n_ports;
 		irq = platform_get_irq(pdev, 0);
 	}
+	if (irq < 0)
+		return irq;
+	if (!irq)
+		return -EINVAL;
 
 	host = ata_host_alloc_pinfo(&pdev->dev, ppi, n_ports);
 	hpriv = devm_kzalloc(&pdev->dev, sizeof(*hpriv), GFP_KERNEL);