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pwm: Simplify all drivers with explicit of_pwm_n_cells = 3

Browse Source 
With the previous commit there is no need for the lowlevel driver any
more to specify it it uses two or three cells. So simplify accordingly.

The only non-trival change affects the pwm-rockchip driver: It used to only
support three cells if the hardware supports polarity. Now the default
number depends on the device tree which has to match hardware anyhow
(and if it doesn't the error is just a bit delayed as a PWM handle with
an inverted setting is catched when pwm_apply_state() is called).

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Uwe Kleine-König 2021-05-10 16:06:40 +02:00 committed by Thierry Reding
parent 69230cfac3
commit e9fdf122cf
26 changed files with 0 additions and 57 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/pwm/pwm-atmel-hlcdc.c
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@ -266,8 +266,6 @@ static int atmel_hlcdc_pwm_probe(struct platform_device *pdev)
chip->chip.ops = &atmel_hlcdc_pwm_ops;
chip->chip.dev = dev;
chip->chip.npwm = 1;
chip->chip.of_xlate = of_pwm_xlate_with_flags;
chip->chip.of_pwm_n_cells = 3;
ret = pwmchip_add(&chip->chip);
if (ret) {

2
drivers/pwm/pwm-atmel-tcb.c
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@ -469,8 +469,6 @@ static int atmel_tcb_pwm_probe(struct platform_device *pdev)
tcbpwm->chip.dev = &pdev->dev;
tcbpwm->chip.ops = &atmel_tcb_pwm_ops;
tcbpwm->chip.of_xlate = of_pwm_xlate_with_flags;
tcbpwm->chip.of_pwm_n_cells = 3;
tcbpwm->chip.npwm = NPWM;
tcbpwm->channel = channel;
tcbpwm->regmap = regmap;

2
drivers/pwm/pwm-atmel.c
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@ -436,8 +436,6 @@ static int atmel_pwm_probe(struct platform_device *pdev)
atmel_pwm->chip.dev = &pdev->dev;
atmel_pwm->chip.ops = &atmel_pwm_ops;
atmel_pwm->chip.of_xlate = of_pwm_xlate_with_flags;
atmel_pwm->chip.of_pwm_n_cells = 3;
atmel_pwm->chip.npwm = 4;
ret = pwmchip_add(&atmel_pwm->chip);

2
drivers/pwm/pwm-bcm-iproc.c
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@ -210,8 +210,6 @@ static int iproc_pwmc_probe(struct platform_device *pdev)
ip->chip.dev = &pdev->dev;
ip->chip.ops = &iproc_pwm_ops;
ip->chip.npwm = 4;
ip->chip.of_xlate = of_pwm_xlate_with_flags;
ip->chip.of_pwm_n_cells = 3;
ip->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(ip->base))

2
drivers/pwm/pwm-bcm-kona.c
View File

@ -272,8 +272,6 @@ static int kona_pwmc_probe(struct platform_device *pdev)
kp->chip.dev = &pdev->dev;
kp->chip.ops = &kona_pwm_ops;
kp->chip.npwm = 6;
kp->chip.of_xlate = of_pwm_xlate_with_flags;
kp->chip.of_pwm_n_cells = 3;
kp->base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(kp->base))

2
drivers/pwm/pwm-bcm2835.c
View File

@ -159,8 +159,6 @@ static int bcm2835_pwm_probe(struct platform_device *pdev)
pc->chip.dev = &pdev->dev;
pc->chip.ops = &bcm2835_pwm_ops;
pc->chip.npwm = 2;
pc->chip.of_xlate = of_pwm_xlate_with_flags;
pc->chip.of_pwm_n_cells = 3;
platform_set_drvdata(pdev, pc);

2
drivers/pwm/pwm-berlin.c
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@ -207,8 +207,6 @@ static int berlin_pwm_probe(struct platform_device *pdev)
pwm->chip.dev = &pdev->dev;
pwm->chip.ops = &berlin_pwm_ops;
pwm->chip.npwm = 4;
pwm->chip.of_xlate = of_pwm_xlate_with_flags;
pwm->chip.of_pwm_n_cells = 3;
ret = pwmchip_add(&pwm->chip);
if (ret < 0) {

2
drivers/pwm/pwm-fsl-ftm.c
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@ -451,8 +451,6 @@ static int fsl_pwm_probe(struct platform_device *pdev)
fpc->chip.ops = &fsl_pwm_ops;
fpc->chip.of_xlate = of_pwm_xlate_with_flags;
fpc->chip.of_pwm_n_cells = 3;
fpc->chip.npwm = 8;
ret = pwmchip_add(&fpc->chip);

2
drivers/pwm/pwm-hibvt.c
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@ -206,8 +206,6 @@ static int hibvt_pwm_probe(struct platform_device *pdev)
pwm_chip->chip.ops = &hibvt_pwm_ops;
pwm_chip->chip.dev = &pdev->dev;
pwm_chip->chip.npwm = soc->num_pwms;
pwm_chip->chip.of_xlate = of_pwm_xlate_with_flags;
pwm_chip->chip.of_pwm_n_cells = 3;
pwm_chip->soc = soc;
pwm_chip->base = devm_platform_ioremap_resource(pdev, 0);

2
drivers/pwm/pwm-imx-tpm.c
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@ -363,8 +363,6 @@ static int pwm_imx_tpm_probe(struct platform_device *pdev)
tpm->chip.dev = &pdev->dev;
tpm->chip.ops = &imx_tpm_pwm_ops;
tpm->chip.of_xlate = of_pwm_xlate_with_flags;
tpm->chip.of_pwm_n_cells = 3;
/* get number of channels */
val = readl(tpm->base + PWM_IMX_TPM_PARAM);

3
drivers/pwm/pwm-imx27.c
View File

@ -329,9 +329,6 @@ static int pwm_imx27_probe(struct platform_device *pdev)
imx->chip.dev = &pdev->dev;
imx->chip.npwm = 1;
imx->chip.of_xlate = of_pwm_xlate_with_flags;
imx->chip.of_pwm_n_cells = 3;
imx->mmio_base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(imx->mmio_base))
return PTR_ERR(imx->mmio_base);

2
drivers/pwm/pwm-jz4740.c
View File

@ -244,8 +244,6 @@ static int jz4740_pwm_probe(struct platform_device *pdev)
jz4740->chip.dev = dev;
jz4740->chip.ops = &jz4740_pwm_ops;
jz4740->chip.npwm = info->num_pwms;
jz4740->chip.of_xlate = of_pwm_xlate_with_flags;
jz4740->chip.of_pwm_n_cells = 3;
platform_set_drvdata(pdev, jz4740);

2
drivers/pwm/pwm-lpc18xx-sct.c
View File

@ -371,8 +371,6 @@ static int lpc18xx_pwm_probe(struct platform_device *pdev)
lpc18xx_pwm->chip.dev = &pdev->dev;
lpc18xx_pwm->chip.ops = &lpc18xx_pwm_ops;
lpc18xx_pwm->chip.npwm = 16;
lpc18xx_pwm->chip.of_xlate = of_pwm_xlate_with_flags;
lpc18xx_pwm->chip.of_pwm_n_cells = 3;
/* SCT counter must be in unify (32 bit) mode */
lpc18xx_pwm_writel(lpc18xx_pwm, LPC18XX_PWM_CONFIG,

2
drivers/pwm/pwm-meson.c
View File

@ -551,8 +551,6 @@ static int meson_pwm_probe(struct platform_device *pdev)
meson->chip.dev = &pdev->dev;
meson->chip.ops = &meson_pwm_ops;
meson->chip.npwm = MESON_NUM_PWMS;
meson->chip.of_xlate = of_pwm_xlate_with_flags;
meson->chip.of_pwm_n_cells = 3;
meson->data = of_device_get_match_data(&pdev->dev);

2
drivers/pwm/pwm-mxs.c
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@ -138,8 +138,6 @@ static int mxs_pwm_probe(struct platform_device *pdev)
mxs->chip.dev = &pdev->dev;
mxs->chip.ops = &mxs_pwm_ops;
mxs->chip.of_xlate = of_pwm_xlate_with_flags;
mxs->chip.of_pwm_n_cells = 3;
ret = of_property_read_u32(np, "fsl,pwm-number", &mxs->chip.npwm);
if (ret < 0) {

2
drivers/pwm/pwm-omap-dmtimer.c
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@ -404,8 +404,6 @@ static int pwm_omap_dmtimer_probe(struct platform_device *pdev)
omap->chip.dev = &pdev->dev;
omap->chip.ops = &pwm_omap_dmtimer_ops;
omap->chip.npwm = 1;
omap->chip.of_xlate = of_pwm_xlate_with_flags;
omap->chip.of_pwm_n_cells = 3;
mutex_init(&omap->mutex);

2
drivers/pwm/pwm-renesas-tpu.c
View File

@ -408,8 +408,6 @@ static int tpu_probe(struct platform_device *pdev)
tpu->chip.dev = &pdev->dev;
tpu->chip.ops = &tpu_pwm_ops;
tpu->chip.of_xlate = of_pwm_xlate_with_flags;
tpu->chip.of_pwm_n_cells = 3;
tpu->chip.npwm = TPU_CHANNEL_MAX;
pm_runtime_enable(&pdev->dev);

5
drivers/pwm/pwm-rockchip.c
View File

@ -354,11 +354,6 @@ static int rockchip_pwm_probe(struct platform_device *pdev)
pc->chip.ops = &rockchip_pwm_ops;
pc->chip.npwm = 1;
if (pc->data->supports_polarity) {
pc->chip.of_xlate = of_pwm_xlate_with_flags;
pc->chip.of_pwm_n_cells = 3;
}
enable_conf = pc->data->enable_conf;
ctrl = readl_relaxed(pc->base + pc->data->regs.ctrl);
enabled = (ctrl & enable_conf) == enable_conf;

3
drivers/pwm/pwm-samsung.c
View File

@ -526,9 +526,6 @@ static int pwm_samsung_probe(struct platform_device *pdev)
ret = pwm_samsung_parse_dt(chip);
if (ret)
return ret;
chip->chip.of_xlate = of_pwm_xlate_with_flags;
chip->chip.of_pwm_n_cells = 3;
} else {
if (!pdev->dev.platform_data) {
dev_err(&pdev->dev, "no platform data specified\n");

2
drivers/pwm/pwm-sifive.c
View File

@ -242,8 +242,6 @@ static int pwm_sifive_probe(struct platform_device *pdev)
chip = &ddata->chip;
chip->dev = dev;
chip->ops = &pwm_sifive_ops;
chip->of_xlate = of_pwm_xlate_with_flags;
chip->of_pwm_n_cells = 3;
chip->npwm = 4;
ddata->regs = devm_platform_ioremap_resource(pdev, 0);

2
drivers/pwm/pwm-stm32-lp.c
View File

@ -208,8 +208,6 @@ static int stm32_pwm_lp_probe(struct platform_device *pdev)
priv->chip.dev = &pdev->dev;
priv->chip.ops = &stm32_pwm_lp_ops;
priv->chip.npwm = 1;
priv->chip.of_xlate = of_pwm_xlate_with_flags;
priv->chip.of_pwm_n_cells = 3;
ret = pwmchip_add(&priv->chip);
if (ret < 0)

2
drivers/pwm/pwm-stm32.c
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@ -621,8 +621,6 @@ static int stm32_pwm_probe(struct platform_device *pdev)
priv->regmap = ddata->regmap;
priv->clk = ddata->clk;
priv->max_arr = ddata->max_arr;
priv->chip.of_xlate = of_pwm_xlate_with_flags;
priv->chip.of_pwm_n_cells = 3;
if (!priv->regmap || !priv->clk)
return -EINVAL;

2
drivers/pwm/pwm-sun4i.c
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@ -460,8 +460,6 @@ static int sun4i_pwm_probe(struct platform_device *pdev)
pwm->chip.dev = &pdev->dev;
pwm->chip.ops = &sun4i_pwm_ops;
pwm->chip.npwm = pwm->data->npwm;
pwm->chip.of_xlate = of_pwm_xlate_with_flags;
pwm->chip.of_pwm_n_cells = 3;
spin_lock_init(&pwm->ctrl_lock);

2
drivers/pwm/pwm-tiecap.c
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@ -224,8 +224,6 @@ static int ecap_pwm_probe(struct platform_device *pdev)
pc->chip.dev = &pdev->dev;
pc->chip.ops = &ecap_pwm_ops;
pc->chip.of_xlate = of_pwm_xlate_with_flags;
pc->chip.of_pwm_n_cells = 3;
pc->chip.npwm = 1;
pc->mmio_base = devm_platform_ioremap_resource(pdev, 0);

2
drivers/pwm/pwm-tiehrpwm.c
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@ -447,8 +447,6 @@ static int ehrpwm_pwm_probe(struct platform_device *pdev)
pc->chip.dev = &pdev->dev;
pc->chip.ops = &ehrpwm_pwm_ops;
pc->chip.of_xlate = of_pwm_xlate_with_flags;
pc->chip.of_pwm_n_cells = 3;
pc->chip.npwm = NUM_PWM_CHANNEL;
pc->mmio_base = devm_platform_ioremap_resource(pdev, 0);

2
drivers/pwm/pwm-vt8500.c
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@ -207,8 +207,6 @@ static int vt8500_pwm_probe(struct platform_device *pdev)
chip->chip.dev = &pdev->dev;
chip->chip.ops = &vt8500_pwm_ops;
chip->chip.of_xlate = of_pwm_xlate_with_flags;
chip->chip.of_pwm_n_cells = 3;
chip->chip.npwm = VT8500_NR_PWMS;
chip->clk = devm_clk_get(&pdev->dev, NULL);