diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-14 10:32:58 +0100 |
|---|---|---|
| committer | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2024-02-22 14:39:26 +0100 |
| commit | 7550ebf04c05de66e504c17dc7c6ac5cf8802d8d (patch) | |
| tree | ed6cb75c14e5d6bafb6c75b3e8ecb20dfb6652d8 /drivers/pwm/pwm-tegra.c | |
| parent | pwm: tegra: Prepare removing pwm_chip from driver data (diff) | |
| download | linux-7550ebf04c05de66e504c17dc7c6ac5cf8802d8d.tar.xz linux-7550ebf04c05de66e504c17dc7c6ac5cf8802d8d.zip | |
pwm: tegra: Make use of devm_pwmchip_alloc() function
This prepares the pwm-tegra driver to further changes of the pwm core
outlined in the commit introducing devm_pwmchip_alloc(). There is no
intended semantical change and the driver should behave as before.
Link: https://lore.kernel.org/r/8719be3d57b0b5cf575b312e5ff41fe0717e3a43.1707900770.git.u.kleine-koenig@pengutronix.de
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Diffstat (limited to 'drivers/pwm/pwm-tegra.c')
| -rw-r--r-- | drivers/pwm/pwm-tegra.c | 19 |
1 files changed, 9 insertions, 10 deletions
diff --git a/drivers/pwm/pwm-tegra.c b/drivers/pwm/pwm-tegra.c index f61c24376523..a3d69976148f 100644 --- a/drivers/pwm/pwm-tegra.c +++ b/drivers/pwm/pwm-tegra.c @@ -65,8 +65,6 @@ struct tegra_pwm_soc { }; struct tegra_pwm_chip { - struct pwm_chip chip; - struct clk *clk; struct reset_control*rst; @@ -80,7 +78,7 @@ struct tegra_pwm_chip { static inline struct tegra_pwm_chip *to_tegra_pwm_chip(struct pwm_chip *chip) { - return container_of(chip, struct tegra_pwm_chip, chip); + return pwmchip_get_drvdata(chip); } static inline u32 pwm_readl(struct tegra_pwm_chip *pc, unsigned int offset) @@ -273,14 +271,17 @@ static int tegra_pwm_probe(struct platform_device *pdev) { struct pwm_chip *chip; struct tegra_pwm_chip *pc; + const struct tegra_pwm_soc *soc; int ret; - pc = devm_kzalloc(&pdev->dev, sizeof(*pc), GFP_KERNEL); - if (!pc) - return -ENOMEM; - chip = &pc->chip; + soc = of_device_get_match_data(&pdev->dev); + + chip = devm_pwmchip_alloc(&pdev->dev, soc->num_channels, sizeof(*pc)); + if (IS_ERR(chip)) + return PTR_ERR(chip); + pc = to_tegra_pwm_chip(chip); - pc->soc = of_device_get_match_data(&pdev->dev); + pc->soc = soc; pc->regs = devm_platform_ioremap_resource(pdev, 0); if (IS_ERR(pc->regs)) @@ -328,9 +329,7 @@ static int tegra_pwm_probe(struct platform_device *pdev) reset_control_deassert(pc->rst); - chip->dev = &pdev->dev; chip->ops = &tegra_pwm_ops; - chip->npwm = pc->soc->num_channels; ret = pwmchip_add(chip); if (ret < 0) { |