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libahci: save port map for forced port map 

In usecases where force_port_map is used saved_port_map is never set,
resulting in not programming the PORTS_IMPL register as part of initial
config. This patch fixes this by setting it to port_map even in case
where force_port_map is used, making it more inline with other parts of
the code.

Fixes: 566d1827df ("libata: disable forced PORTS_IMPL for >= AHCI 1.3")
Cc: stable@vger.kernel.org # v4.5+
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Acked-by: Tejun Heo <tj@kernel.org>
Reviewed-by: Andy Gross <andy.gross@linaro.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
hifive-unleashed-5.1
Srinivas Kandagatla 2016-04-01 08:52:56 +01:00 committed by Tejun Heo
parent f55532a0c0
commit 2fd0f46cb1
1 changed files with 1 additions and 0 deletions
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drivers/ata/libahci.c
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@ -507,6 +507,7 @@ void ahci_save_initial_config(struct device *dev, struct ahci_host_priv *hpriv)
dev_info(dev, "forcing port_map 0x%x -> 0x%x\n",
port_map, hpriv->force_port_map);
port_map = hpriv->force_port_map;
hpriv->saved_port_map = port_map;
}
if (hpriv->mask_port_map) {