diff mbox

[RFC,1/3] libahci: save port map for forced port map

Message ID 1459257075-21393-2-git-send-email-srinivas.kandagatla@linaro.org
State Accepted
Commit 2fd0f46cb1b82587c7ae4a616d69057fb9bd0af7
Headers show

Commit Message

Srinivas Kandagatla March 29, 2016, 1:11 p.m. UTC
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 intial
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.

Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

---
 drivers/ata/libahci.c | 1 +
 1 file changed, 1 insertion(+)

-- 
2.5.0

Comments

Srinivas Kandagatla March 31, 2016, 4:51 p.m. UTC | #1
On 31/03/16 17:43, Tejun Heo wrote:
> Hello,

>

> On Thu, Mar 31, 2016 at 04:58:27PM +0100, Srinivas Kandagatla wrote:

>> Yes, that is the intention, I guess, This was done exactly in case where the

>> port number was fabricated too.

>>

>> Without this I could not get the sata working on my board with forced port

>> map option.

>

> I see.  Looks good to me then.  Can you please respin the patches with

> the updates for the review points in the second patch?  I'll apply

> them to libata/for-3.6-fixes.


Thanks, I will do it now.

--srini
>

> Thanks.

>
diff mbox

Patch

diff --git a/drivers/ata/libahci.c b/drivers/ata/libahci.c
index 3982054..a5d7c1c 100644
--- a/drivers/ata/libahci.c
+++ b/drivers/ata/libahci.c
@@ -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) {