linux-kernel - [PATCH v2 4/4] pwm: sunxi: Add H3 support

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Date:   Wed, 31 Aug 2016 17:25:20 +0900
From:   Milo Kim <woogyom.kim@...il.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Maxime Ripard <maxime.ripard@...e-electrons.com>,
        Chen-Yu Tsai <wens@...e.org>,
        Linus Walleij <linus.walleij@...aro.org>,
        Thierry Reding <thierry.reding@...il.com>
Cc:     devicetree@...r.kernel.org, linux-gpio@...r.kernel.org,
        linux-pwm@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
        linux-kernel@...r.kernel.org, Milo Kim <woogyom.kim@...il.com>,
        Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Subject: [PATCH v2 4/4] pwm: sunxi: Add H3 support

H3 PWM controller has same register layout as sun4i driver, so it works
by adding H3 specific data.

Cc: Thierry Reding <thierry.reding@...il.com>
Cc: Rob Herring <robh+dt@...nel.org>
Cc: Maxime Ripard <maxime.ripard@...e-electrons.com>
Cc: Alexandre Belloni <alexandre.belloni@...e-electrons.com>
Cc: Chen-Yu Tsai <wens@...e.org>
Cc: linux-pwm@...r.kernel.org
Cc: devicetree@...r.kernel.org
Cc: linux-arm-kernel@...ts.infradead.org
Cc: linux-kernel@...r.kernel.org
Signed-off-by: Milo Kim <woogyom.kim@...il.com>
---
 Documentation/devicetree/bindings/pwm/pwm-sun4i.txt | 1 +
 drivers/pwm/pwm-sun4i.c                             | 9 +++++++++
 2 files changed, 10 insertions(+)

diff --git a/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt b/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt
index cf6068b..f1cbeef 100644
--- a/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt
+++ b/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt
@@ -6,6 +6,7 @@ Required properties:
     - "allwinner,sun5i-a10s-pwm"
     - "allwinner,sun5i-a13-pwm"
     - "allwinner,sun7i-a20-pwm"
+    - "allwinner,sun8i-h3-pwm"
   - reg: physical base address and length of the controller's registers
   - #pwm-cells: should be 3. See pwm.txt in this directory for a description of
     the cells format.
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c
index 03a99a5..b0803f6 100644
--- a/drivers/pwm/pwm-sun4i.c
+++ b/drivers/pwm/pwm-sun4i.c
@@ -284,6 +284,12 @@ static const struct sun4i_pwm_data sun4i_pwm_data_a20 = {
 	.npwm = 2,
 };
 
+static const struct sun4i_pwm_data sun4i_pwm_data_h3 = {
+	.has_prescaler_bypass = true,
+	.has_rdy = true,
+	.npwm = 1,
+};
+
 static const struct of_device_id sun4i_pwm_dt_ids[] = {
 	{
 		.compatible = "allwinner,sun4i-a10-pwm",
@@ -298,6 +304,9 @@ static const struct of_device_id sun4i_pwm_dt_ids[] = {
 		.compatible = "allwinner,sun7i-a20-pwm",
 		.data = &sun4i_pwm_data_a20,
 	}, {
+		.compatible = "allwinner,sun8i-h3-pwm",
+		.data = &sun4i_pwm_data_h3,
+	}, {
 		/* sentinel */
 	},
 };
-- 
2.9.3