linux-kernel - [PATCH 3/4] Input: pmic8xxx-keypad - add support keypad found in pm8941

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Date:	Tue,  7 Oct 2014 12:50:47 +0300
From:	"Ivan T. Ivanov" <iivanov@...sol.com>
To:	Rob Herring <robh+dt@...nel.org>, Pawel Moll <pawel.moll@....com>,
	Mark Rutland <mark.rutland@....com>,
	Ian Campbell <ijc+devicetree@...lion.org.uk>,
	Kumar Gala <galak@...eaurora.org>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>
Cc:	"Ivan T. Ivanov" <iivanov@...sol.com>,
	Stephen Boyd <sboyd@...eaurora.org>,
	linux-input@...r.kernel.org, devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: [PATCH 3/4] Input: pmic8xxx-keypad - add support keypad found in pm8941

Controller seems to be the same. Just access to it is over SPMI bus
and registers and bits are reshuffled. Hopefully this is nicely
abstracted by regmap helpers.

Signed-off-by: Ivan T. Ivanov <iivanov@...sol.com>
---
 .../bindings/input/qcom,pm8xxx-keypad.txt          |  1 +
 drivers/input/keyboard/pmic8xxx-keypad.c           | 27 ++++++++++++++++++++++
 2 files changed, 28 insertions(+)

diff --git a/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt b/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
index 7d8cb92..2b60f8a 100644
--- a/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
+++ b/Documentation/devicetree/bindings/input/qcom,pm8xxx-keypad.txt
@@ -8,6 +8,7 @@ PROPERTIES
 	Definition: must be one of:
 		    "qcom,pm8058-keypad"
 		    "qcom,pm8921-keypad"
+		    "qcom,pm8941-keypad"
 
 - reg:
 	Usage: required
diff --git a/drivers/input/keyboard/pmic8xxx-keypad.c b/drivers/input/keyboard/pmic8xxx-keypad.c
index b82d161..2d4fa07 100644
--- a/drivers/input/keyboard/pmic8xxx-keypad.c
+++ b/drivers/input/keyboard/pmic8xxx-keypad.c
@@ -136,6 +136,32 @@ static const struct pmic8xxx_kp_info ssbi_kp = {
 	.row_hold	= REG_FIELD(0x149, 6, 7),
 };
 
+static const struct pmic8xxx_kp_info spmi_kp = {
+	.max_rows	= 10,
+	.min_rows	= 2,
+	.max_cols	= 8,
+	.min_cols	= 1,
+
+	.rows_select = {
+		1, 2, 3, 4, 5, 6, 7,
+		8, 9, 10
+	},
+
+	.recent_data	= 0xa87c,
+	.old_data	= 0xa85c,
+	.read_stride	= 2,
+
+	.events		= REG_FIELD(0xa808, 0, 1),
+	.scan_rows	= REG_FIELD(0xa840, 0, 3),
+	.scan_cols	= REG_FIELD(0xa840, 4, 6),
+	.enable		= REG_FIELD(0xa846, 7, 7),
+
+	.read_state	= REG_FIELD(0xa844, 0, 0),
+	.dbonce		= REG_FIELD(0xa842, 0, 1),
+	.pause		= REG_FIELD(0xa842, 3, 5),
+	.row_hold	= REG_FIELD(0xa842, 6, 7),
+};
+
 static u8 pmic8xxx_col_state(struct pmic8xxx_kp *kp, u8 col)
 {
 	/* all keys pressed on that particular row? */
@@ -715,6 +741,7 @@ static SIMPLE_DEV_PM_OPS(pm8xxx_kp_pm_ops,
 static const struct of_device_id pm8xxx_match_table[] = {
 	{ .compatible = "qcom,pm8058-keypad", .data = (void *)&ssbi_kp },
 	{ .compatible = "qcom,pm8921-keypad", .data = (void *)&ssbi_kp },
+	{ .compatible = "qcom,pm8941-keypad", .data = (void *)&spmi_kp },
 	{ }
 };
 MODULE_DEVICE_TABLE(of, pm8xxx_match_table);
-- 
1.9.1

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