ata: sata_rcar: Disable DIPM mode for r8a7790 ES1

Unlike other SATA R-Car r8a7790 controllers the r8a7790 ES1 SATA R-Car
controller needs to be run with DIPM disabled.

Signed-off-by: Simon Horman <horms+renesas@verge.net.au>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org

1 files changed, 10 insertions, 0 deletions

diff --git a/drivers/ata/sata_rcar.c b/drivers/ata/sata_rcar.c
index 61eb6d77dac7..8732e42db3a9 100644
--- a/drivers/ata/sata_rcar.c
+++ b/drivers/ata/sata_rcar.c
@@ -146,6 +146,7 @@
 enum sata_rcar_type {
         RCAR_GEN1_SATA,
         RCAR_GEN2_SATA,
+        RCAR_R8A7790_ES1_SATA,
 };
 
 struct sata_rcar_priv {
@@ -763,6 +764,9 @@ static void sata_rcar_setup_port(struct ata_host *host)
         ap->udma_mask   = ATA_UDMA6;
         ap->flags       |= ATA_FLAG_SATA;
 
+        if (priv->type == RCAR_R8A7790_ES1_SATA)
+                ap->flags       |= ATA_FLAG_NO_DIPM;
+
         ioaddr->cmd_addr = base + SDATA_REG;
         ioaddr->ctl_addr = base + SSDEVCON_REG;
         ioaddr->scr_addr = base + SCRSSTS_REG;
@@ -792,6 +796,7 @@ static void sata_rcar_init_controller(struct ata_host *host)
                 sata_rcar_gen1_phy_init(priv);
                 break;
         case RCAR_GEN2_SATA:
+        case RCAR_R8A7790_ES1_SATA:
                 sata_rcar_gen2_phy_init(priv);
                 break;
         default:
@@ -838,6 +843,10 @@ static struct of_device_id sata_rcar_match[] = {
                 .data = (void *)RCAR_GEN2_SATA
         },
         {
+                .compatible = "renesas,sata-r8a7790-es1",
+                .data = (void *)RCAR_R8A7790_ES1_SATA
+        },
+        {
                 .compatible = "renesas,sata-r8a7791",
                 .data = (void *)RCAR_GEN2_SATA
         },
@@ -849,6 +858,7 @@ static const struct platform_device_id sata_rcar_id_table[] = {
         { "sata_rcar", RCAR_GEN1_SATA }, /* Deprecated by "sata-r8a7779" */
         { "sata-r8a7779", RCAR_GEN1_SATA },
         { "sata-r8a7790", RCAR_GEN2_SATA },
+        { "sata-r8a7790-es1", RCAR_R8A7790_ES1_SATA },
         { "sata-r8a7791", RCAR_GEN2_SATA },
         { },
 };