[PATCH u-boot-marvell 3/3] arm64: a37xx: pinctrl: Improve description for pinmux command

[Pali Rohár]

In more cases group name consist of function name followed by function
number. So if function name is just prefix of group name, show group name.

So in 'pinmux status -a' command output would be visible also extended
function number, which is useful for debugging.

Signed-off-by: Pali Rohár <p...@kernel.org>
---
 drivers/pinctrl/mvebu/pinctrl-armada-37xx.c | 12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c 
b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
index 32b49f167c66..25fbe39abd19 100644
--- a/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
+++ b/drivers/pinctrl/mvebu/pinctrl-armada-37xx.c
@@ -406,7 +406,17 @@ static int armada_37xx_pmx_get_pin_muxing(struct udevice 
*dev, unsigned int sele
 
                        for (f = 0; f < NB_FUNCS && grp->funcs[f]; f++) {
                                if (grp->val[f] == val) {
-                                       strlcpy(buf, grp->funcs[f], size);
+                                       /*
+                                        * In more cases group name consist of
+                                        * function name followed by function
+                                        * number. So if function name is just
+                                        * prefix of group name, show group 
name.
+                                        */
+                                       if (strncmp(grp->name, grp->funcs[f],
+                                                   strlen(grp->funcs[f])) == 0)
+                                               strlcpy(buf, grp->name, size);
+                                       else
+                                               strlcpy(buf, grp->funcs[f], 
size);
                                        return 0;
                                }
                        }
-- 
2.20.1