[PATCH RFC 1/5] ata: ahci_imx: warn when disabling ahci link
From: Russell King <hidden>
Date: 2014-04-16 08:43:25
Also in:
linux-ide
Subsystem:
libata subsystem (serial and parallel ata drivers), the rest · Maintainers:
Damien Le Moal, Niklas Cassel, Linus Torvalds
When the AHCI link is disabled, it can't be re-enabled except by resetting the entire SoC. Rather than doing this silently print some kernel messages to inform the user, along with how to avoid this. Signed-off-by: Russell King <redacted> --- drivers/ata/ahci_imx.c | 4 ++++ 1 file changed, 4 insertions(+)
diff --git a/drivers/ata/ahci_imx.c b/drivers/ata/ahci_imx.c
index 497c7abe1c7d..6a56a561a80b 100644
--- a/drivers/ata/ahci_imx.c
+++ b/drivers/ata/ahci_imx.c@@ -160,6 +160,10 @@ static void ahci_imx_error_handler(struct ata_port *ap) writel(reg_val | PORT_PHY_CTL_PDDQ_LOC, mmio + PORT_PHY_CTL); imx_sata_disable(hpriv); imxpriv->no_device = true; + + dev_info(ap->dev, "no device found, disabling link.\n"); + dev_info(ap->dev, "pass " MODULE_PARAM_PREFIX + ".hotplug=1 to enable hotplug\n"); } static int ahci_imx_softreset(struct ata_link *link, unsigned int *class,
--
1.8.3.1