From 2957e9a7ea070524508a846205689431cb5c101f Mon Sep 17 00:00:00 2001 From: Daniel Baumann Date: Mon, 1 Jul 2024 19:13:54 +0200 Subject: Adding upstream version 6.9.7. Signed-off-by: Daniel Baumann --- drivers/pwm/pwm-meson.c | 15 ++++++++------- drivers/pwm/pwm-sti.c | 39 +++------------------------------------ 2 files changed, 11 insertions(+), 43 deletions(-) (limited to 'drivers/pwm') diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c index a02fdbc612..e12b6ff70b 100644 --- a/drivers/pwm/pwm-meson.c +++ b/drivers/pwm/pwm-meson.c @@ -147,7 +147,7 @@ static int meson_pwm_calc(struct pwm_chip *chip, struct pwm_device *pwm, struct meson_pwm *meson = to_meson_pwm(chip); struct meson_pwm_channel *channel = &meson->channels[pwm->hwpwm]; unsigned int cnt, duty_cnt; - unsigned long fin_freq; + long fin_freq; u64 duty, period, freq; duty = state->duty_cycle; @@ -167,14 +167,15 @@ static int meson_pwm_calc(struct pwm_chip *chip, struct pwm_device *pwm, freq = ULONG_MAX; fin_freq = clk_round_rate(channel->clk, freq); - if (fin_freq == 0) { - dev_err(pwmchip_parent(chip), "invalid source clock frequency\n"); - return -EINVAL; + if (fin_freq <= 0) { + dev_err(pwmchip_parent(chip), + "invalid source clock frequency %llu\n", freq); + return fin_freq ? fin_freq : -EINVAL; } - dev_dbg(pwmchip_parent(chip), "fin_freq: %lu Hz\n", fin_freq); + dev_dbg(pwmchip_parent(chip), "fin_freq: %ld Hz\n", fin_freq); - cnt = div_u64(fin_freq * period, NSEC_PER_SEC); + cnt = mul_u64_u64_div_u64(fin_freq, period, NSEC_PER_SEC); if (cnt > 0xffff) { dev_err(pwmchip_parent(chip), "unable to get period cnt\n"); return -EINVAL; @@ -189,7 +190,7 @@ static int meson_pwm_calc(struct pwm_chip *chip, struct pwm_device *pwm, channel->hi = 0; channel->lo = cnt; } else { - duty_cnt = div_u64(fin_freq * duty, NSEC_PER_SEC); + duty_cnt = mul_u64_u64_div_u64(fin_freq, duty, NSEC_PER_SEC); dev_dbg(pwmchip_parent(chip), "duty=%llu duty_cnt=%u\n", duty, duty_cnt); diff --git a/drivers/pwm/pwm-sti.c b/drivers/pwm/pwm-sti.c index 39d80da0e1..f07b1126e7 100644 --- a/drivers/pwm/pwm-sti.c +++ b/drivers/pwm/pwm-sti.c @@ -624,32 +624,20 @@ static int sti_pwm_probe(struct platform_device *pdev) return ret; if (cdata->pwm_num_devs) { - pc->pwm_clk = of_clk_get_by_name(dev->of_node, "pwm"); + pc->pwm_clk = devm_clk_get_prepared(dev, "pwm"); if (IS_ERR(pc->pwm_clk)) { dev_err(dev, "failed to get PWM clock\n"); return PTR_ERR(pc->pwm_clk); } - - ret = clk_prepare(pc->pwm_clk); - if (ret) { - dev_err(dev, "failed to prepare clock\n"); - return ret; - } } if (cdata->cpt_num_devs) { - pc->cpt_clk = of_clk_get_by_name(dev->of_node, "capture"); + pc->cpt_clk = devm_clk_get_prepared(dev, "capture"); if (IS_ERR(pc->cpt_clk)) { dev_err(dev, "failed to get PWM capture clock\n"); return PTR_ERR(pc->cpt_clk); } - ret = clk_prepare(pc->cpt_clk); - if (ret) { - dev_err(dev, "failed to prepare clock\n"); - return ret; - } - cdata->ddata = devm_kzalloc(dev, cdata->cpt_num_devs * sizeof(*cdata->ddata), GFP_KERNEL); if (!cdata->ddata) return -ENOMEM; @@ -664,27 +652,7 @@ static int sti_pwm_probe(struct platform_device *pdev) mutex_init(&ddata->lock); } - ret = pwmchip_add(chip); - if (ret < 0) { - clk_unprepare(pc->pwm_clk); - clk_unprepare(pc->cpt_clk); - return ret; - } - - platform_set_drvdata(pdev, chip); - - return 0; -} - -static void sti_pwm_remove(struct platform_device *pdev) -{ - struct pwm_chip *chip = platform_get_drvdata(pdev); - struct sti_pwm_chip *pc = to_sti_pwmchip(chip); - - pwmchip_remove(chip); - - clk_unprepare(pc->pwm_clk); - clk_unprepare(pc->cpt_clk); + return devm_pwmchip_add(dev, chip); } static const struct of_device_id sti_pwm_of_match[] = { @@ -699,7 +667,6 @@ static struct platform_driver sti_pwm_driver = { .of_match_table = sti_pwm_of_match, }, .probe = sti_pwm_probe, - .remove_new = sti_pwm_remove, }; module_platform_driver(sti_pwm_driver); -- cgit v1.2.3