diff options
| author | Hans de Goede <hdegoede@redhat.com> | 2015-10-11 11:49:57 +0200 |
|---|---|---|
| committer | Thierry Reding <thierry.reding@gmail.com> | 2015-11-10 13:06:41 +0100 |
| commit | f6649f7ad8efbaf82679ab0ccdfe837a65bd58d8 (patch) | |
| tree | 4fefc43c86a21cd9d60ea5af16db917237219032 /drivers/pwm | |
| parent | pwm: Set enable state properly on failed call to enable (diff) | |
| download | linux-f6649f7ad8efbaf82679ab0ccdfe837a65bd58d8.tar.xz linux-f6649f7ad8efbaf82679ab0ccdfe837a65bd58d8.zip | |
pwm: sun4i: Add support for PWM controller on sun5i SoCs
The PWM controller on sun5i SoCs is identical to the one found on sun7i
SoCs. On the A13 package only one of the 2 pins is routed to the outside,
so only advertise one PWM channel there.
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Maxime Ripard <maxime.ripard@free-electrons.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Diffstat (limited to 'drivers/pwm')
| -rw-r--r-- | drivers/pwm/pwm-sun4i.c | 25 |
1 files changed, 23 insertions, 2 deletions
diff --git a/drivers/pwm/pwm-sun4i.c b/drivers/pwm/pwm-sun4i.c index cd9dde563018..b093cc55f799 100644 --- a/drivers/pwm/pwm-sun4i.c +++ b/drivers/pwm/pwm-sun4i.c @@ -68,6 +68,7 @@ static const u32 prescaler_table[] = { struct sun4i_pwm_data { bool has_prescaler_bypass; bool has_rdy; + unsigned int npwm; }; struct sun4i_pwm_chip { @@ -262,11 +263,25 @@ static const struct pwm_ops sun4i_pwm_ops = { static const struct sun4i_pwm_data sun4i_pwm_data_a10 = { .has_prescaler_bypass = false, .has_rdy = false, + .npwm = 2, +}; + +static const struct sun4i_pwm_data sun4i_pwm_data_a10s = { + .has_prescaler_bypass = true, + .has_rdy = true, + .npwm = 2, +}; + +static const struct sun4i_pwm_data sun4i_pwm_data_a13 = { + .has_prescaler_bypass = true, + .has_rdy = true, + .npwm = 1, }; static const struct sun4i_pwm_data sun4i_pwm_data_a20 = { .has_prescaler_bypass = true, .has_rdy = true, + .npwm = 2, }; static const struct of_device_id sun4i_pwm_dt_ids[] = { @@ -274,6 +289,12 @@ static const struct of_device_id sun4i_pwm_dt_ids[] = { .compatible = "allwinner,sun4i-a10-pwm", .data = &sun4i_pwm_data_a10, }, { + .compatible = "allwinner,sun5i-a10s-pwm", + .data = &sun4i_pwm_data_a10s, + }, { + .compatible = "allwinner,sun5i-a13-pwm", + .data = &sun4i_pwm_data_a13, + }, { .compatible = "allwinner,sun7i-a20-pwm", .data = &sun4i_pwm_data_a20, }, { @@ -305,14 +326,14 @@ static int sun4i_pwm_probe(struct platform_device *pdev) if (IS_ERR(pwm->clk)) return PTR_ERR(pwm->clk); + pwm->data = match->data; pwm->chip.dev = &pdev->dev; pwm->chip.ops = &sun4i_pwm_ops; pwm->chip.base = -1; - pwm->chip.npwm = 2; + pwm->chip.npwm = pwm->data->npwm; pwm->chip.can_sleep = true; pwm->chip.of_xlate = of_pwm_xlate_with_flags; pwm->chip.of_pwm_n_cells = 3; - pwm->data = match->data; spin_lock_init(&pwm->ctrl_lock); |