Messages in this thread Patch in this message |  | | From | Florian Fainelli <> | Subject | [PATCH v3 3/3] ata: ahci_brcm: BCM7216 reset is self de-asserting | Date | Tue, 7 Jan 2020 10:30:22 -0800 |
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The BCM7216 reset controller line is self-deasserting, unlike other platforms, so make use of reset_control_reset() instead of reset_control_deassert().
Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> --- drivers/ata/ahci_brcm.c | 18 ++++++++++++++---- 1 file changed, 14 insertions(+), 4 deletions(-)
diff --git a/drivers/ata/ahci_brcm.c b/drivers/ata/ahci_brcm.c index c229fea39a47..62c948e56beb 100644 --- a/drivers/ata/ahci_brcm.c +++ b/drivers/ata/ahci_brcm.c @@ -352,7 +352,10 @@ static int brcm_ahci_suspend(struct device *dev) if (ret) return ret; - return reset_control_assert(priv->rcdev); + if (priv->version != BRCM_SATA_BCM7216) + ret = reset_control_assert(priv->rcdev); + + return ret; } static int brcm_ahci_resume(struct device *dev) @@ -362,7 +365,10 @@ static int brcm_ahci_resume(struct device *dev) struct brcm_ahci_priv *priv = hpriv->plat_data; int ret = 0; - ret = reset_control_deassert(priv->rcdev); + if (priv->version == BRCM_SATA_BCM7216) + ret = reset_control_reset(priv->rcdev); + else + ret = reset_control_deassert(priv->rcdev); if (ret) return ret; @@ -475,7 +481,10 @@ static int brcm_ahci_probe(struct platform_device *pdev) break; } - ret = reset_control_deassert(priv->rcdev); + if (priv->version == BRCM_SATA_BCM7216) + ret = reset_control_reset(priv->rcdev); + else + ret = reset_control_deassert(priv->rcdev); if (ret) return ret; @@ -520,7 +529,8 @@ static int brcm_ahci_probe(struct platform_device *pdev) out_disable_clks: ahci_platform_disable_clks(hpriv); out_reset: - reset_control_assert(priv->rcdev); + if (priv->version != BRCM_SATA_BCM7216) + reset_control_assert(priv->rcdev); return ret; } -- 2.17.1
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