Merge tag 'ata-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata

Pull ata updates from Damien Le Moal:

 - Add support for the .remove_new callback to the ata_platform code to
   simplify device removal interface (Uwe)

 - Code simplification in ata_dev_revalidate() (Yahu)

 - Fix code indentation and coding style in the pata_parport protocol
   modules to avoid warnings from static code analyzers (me)

 - Clarify ata_eh_qc_retry() behavior with better comments (Niklas)

 - Simplify and improve ata_change_queue_depth() behavior to have a
   consistent behavior between libsas managed devices and libata managed
   devices (e.g. AHCI connected devices) (me)

 - Cleanup libata-scsi and libata-eh code to use the ata_ncq_enabled()
   and ata_ncq_supported() helpers instead of open coding flags tests
   (me)

 - Cleanup ahci_reset_controller() code (me)

 - Change the pata_octeon_cf and sata_svw drivers to use
   of_property_read_reg() to simplify the code (Rob, me)

 - Remove unnecessary include files from ahci_octeon driver (me)

 - Modify the DesignWare ahci dt bindings to add support for the
   Rockchip RK3588 AHCI (Sebastian)

* tag 'ata-6.5-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/libata: (29 commits)
  dt-bindings: phy: rockchip: rk3588 has two reset lines
  dt-bindings: ata: dwc-ahci: add Rockchip RK3588
  dt-bindings: ata: dwc-ahci: add PHY clocks
  ata: ahci_octeon: Remove unnecessary include
  ata: pata_octeon_cf: Add missing header include
  ata: ahci: Cleanup ahci_reset_controller()
  ata: Use of_property_read_reg() to parse "reg"
  ata: libata-scsi: Use ata_ncq_supported in ata_scsi_dev_config()
  ata: libata-eh: Use ata_ncq_enabled() in ata_eh_speed_down()
  ata: libata-sata: Improve ata_change_queue_depth()
  ata: libata-sata: Simplify ata_change_queue_depth()
  ata: libata-eh: Clarify ata_eh_qc_retry() behavior at call site
  ata: pata_parport: Fix on26 module code indentation and style
  ata: pata_parport: Fix on20 module code indentation and style
  ata: pata_parport: Fix ktti module code indentation and style
  ata: pata_parport: Fix kbic module code indentation and style
  ata: pata_parport: Fix friq module code indentation and style
  ata: pata_parport: Fix fit3 module code indentation and style
  ata: pata_parport: Fix fit2 module code indentation and style
  ata: pata_parport: Fix epia module code indentation and style
  ...

1 files changed, 30 insertions, 31 deletions

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 9c2cb6cbea76..06aec35f88f2 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -975,44 +975,43 @@ int ahci_reset_controller(struct ata_host *host)
 	void __iomem *mmio = hpriv->mmio;
 	u32 tmp;
 
-	/* we must be in AHCI mode, before using anything
-	 * AHCI-specific, such as HOST_RESET.
+	/*
+	 * We must be in AHCI mode, before using anything AHCI-specific, such
+	 * as HOST_RESET.
 	 */
 	ahci_enable_ahci(mmio);
 
-	/* global controller reset */
-	if (!ahci_skip_host_reset) {
-		tmp = readl(mmio + HOST_CTL);
-		if ((tmp & HOST_RESET) == 0) {
-			writel(tmp | HOST_RESET, mmio + HOST_CTL);
-			readl(mmio + HOST_CTL); /* flush */
-		}
+	/* Global controller reset */
+	if (ahci_skip_host_reset) {
+		dev_info(host->dev, "Skipping global host reset\n");
+		return 0;
+	}
 
-		/*
-		 * to perform host reset, OS should set HOST_RESET
-		 * and poll until this bit is read to be "0".
-		 * reset must complete within 1 second, or
-		 * the hardware should be considered fried.
-		 */
-		tmp = ata_wait_register(NULL, mmio + HOST_CTL, HOST_RESET,
-					HOST_RESET, 10, 1000);
+	tmp = readl(mmio + HOST_CTL);
+	if (!(tmp & HOST_RESET)) {
+		writel(tmp | HOST_RESET, mmio + HOST_CTL);
+		readl(mmio + HOST_CTL); /* flush */
+	}
 
-		if (tmp & HOST_RESET) {
-			dev_err(host->dev, "controller reset failed (0x%x)\n",
-				tmp);
-			return -EIO;
-		}
+	/*
+	 * To perform host reset, OS should set HOST_RESET and poll until this
+	 * bit is read to be "0". Reset must complete within 1 second, or the
+	 * hardware should be considered fried.
+	 */
+	tmp = ata_wait_register(NULL, mmio + HOST_CTL, HOST_RESET,
+				HOST_RESET, 10, 1000);
+	if (tmp & HOST_RESET) {
+		dev_err(host->dev, "Controller reset failed (0x%x)\n",
+			tmp);
+		return -EIO;
+	}
 
-		/* turn on AHCI mode */
-		ahci_enable_ahci(mmio);
+	/* Turn on AHCI mode */
+	ahci_enable_ahci(mmio);
 
-		/* Some registers might be cleared on reset.  Restore
-		 * initial values.
-		 */
-		if (!(hpriv->flags & AHCI_HFLAG_NO_WRITE_TO_RO))
-			ahci_restore_initial_config(host);
-	} else
-		dev_info(host->dev, "skipping global host reset\n");
+	/* Some registers might be cleared on reset. Restore initial values. */
+	if (!(hpriv->flags & AHCI_HFLAG_NO_WRITE_TO_RO))
+		ahci_restore_initial_config(host);
 
 	return 0;
 }