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@gmail.com>
Cc: Rob Herring <robh+dt@kernel.org>
Cc: Maxime Ripard <maxime.ripard@free-electrons.com>
Cc: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Cc: Chen-Yu Tsai <wens@csie.org>
Cc: linux-pwm@vger.kernel.org
Cc: devicetree@vger.kernel.org
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@vger.kernel.org
Signed-off-by: Milo Kim <woogyom.kim@gmail.com>
Acked-by: Chen-Yu Tsai <wens@csie.org>
Reviewed-by: Alexandre Belloni <alexandre.belloni@free-electrons.com>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>

2 files changed, 10 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt b/Documentation/devicetree/bindings/pwm/pwm-sun4i.txt
index cf6068b8e974..f1cbeefb3087 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 03a99a53c39e..b0803f6c64d9 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 */
         },
 };