linux-kernel - [PATCH] pinctrl: pinctrl-single: add debugfs pin h/w state info

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Date:	Wed, 26 Sep 2012 15:07:43 -0400
From:	Matt Porter <mporter@...com>
To:	Tony Lindgren <tony@...mide.com>
Cc:	Linus Walleij <linus.walleij@...aro.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>
Subject: [PATCH] pinctrl: pinctrl-single: add debugfs pin h/w state info

Adds support for displaying the individual pin h/w config state.

Signed-off-by: Matt Porter <mporter@...com>
Acked-by: Tony Lindgren <tony@...mide.com>
---
 drivers/pinctrl/pinctrl-single.c |   10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c
index aabecfa..726a729 100644
--- a/drivers/pinctrl/pinctrl-single.c
+++ b/drivers/pinctrl/pinctrl-single.c
@@ -246,7 +246,15 @@ static void pcs_pin_dbg_show(struct pinctrl_dev *pctldev,
 					struct seq_file *s,
 					unsigned offset)
 {
-	seq_printf(s, " " DRIVER_NAME);
+	struct pcs_device *pcs;
+	unsigned val;
+
+	pcs = pinctrl_dev_get_drvdata(pctldev);
+
+	val = pcs->read(pcs->base + offset);
+	val &= pcs->fmask;
+
+	seq_printf(s, "%08x %s " , val, DRIVER_NAME);
 }
 
 static void pcs_dt_free_map(struct pinctrl_dev *pctldev,
-- 
1.7.9.5

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