diff options
Diffstat (limited to 'drivers/pwm/pwm-meson.c')
| -rw-r--r-- | drivers/pwm/pwm-meson.c | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c index b2f97dfb01bb..98e6c1533312 100644 --- a/drivers/pwm/pwm-meson.c +++ b/drivers/pwm/pwm-meson.c @@ -460,6 +460,37 @@ static int meson_pwm_init_channels_meson8b_v2(struct pwm_chip *chip) return meson_pwm_init_clocks_meson8b(chip, mux_parent_data); } +static void meson_pwm_s4_put_clk(void *data) +{ + struct clk *clk = data; + + clk_put(clk); +} + +static int meson_pwm_init_channels_s4(struct pwm_chip *chip) +{ + struct device *dev = pwmchip_parent(chip); + struct device_node *np = dev->of_node; + struct meson_pwm *meson = to_meson_pwm(chip); + int i, ret; + + for (i = 0; i < MESON_NUM_PWMS; i++) { + meson->channels[i].clk = of_clk_get(np, i); + if (IS_ERR(meson->channels[i].clk)) + return dev_err_probe(dev, + PTR_ERR(meson->channels[i].clk), + "Failed to get clk\n"); + + ret = devm_add_action_or_reset(dev, meson_pwm_s4_put_clk, + meson->channels[i].clk); + if (ret) + return dev_err_probe(dev, ret, + "Failed to add clk_put action\n"); + } + + return 0; +} + static const struct meson_pwm_data pwm_meson8b_data = { .parent_names = { "xtal", NULL, "fclk_div4", "fclk_div3" }, .channels_init = meson_pwm_init_channels_meson8b_legacy, @@ -498,6 +529,10 @@ static const struct meson_pwm_data pwm_meson8_v2_data = { .channels_init = meson_pwm_init_channels_meson8b_v2, }; +static const struct meson_pwm_data pwm_s4_data = { + .channels_init = meson_pwm_init_channels_s4, +}; + static const struct of_device_id meson_pwm_matches[] = { { .compatible = "amlogic,meson8-pwm-v2", @@ -536,6 +571,10 @@ static const struct of_device_id meson_pwm_matches[] = { .compatible = "amlogic,meson-g12a-ao-pwm-cd", .data = &pwm_g12a_ao_cd_data }, + { + .compatible = "amlogic,meson-s4-pwm", + .data = &pwm_s4_data + }, {}, }; MODULE_DEVICE_TABLE(of, meson_pwm_matches); |