@@ -65,7 +65,6 @@ struct tegra_pwm_soc {
};
struct tegra_pwm_chip {
- struct pwm_chip chip;
struct device *dev;
struct clk *clk;
@@ -81,7 +80,7 @@ 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)
@@ -272,14 +271,19 @@ static const struct pwm_ops tegra_pwm_ops = {
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;
+ soc = of_device_get_match_data(&pdev->dev);
- pc->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 = soc;
pc->dev = &pdev->dev;
pc->regs = devm_platform_ioremap_resource(pdev, 0);
@@ -328,11 +332,9 @@ static int tegra_pwm_probe(struct platform_device *pdev)
reset_control_deassert(pc->rst);
- pc->chip.dev = &pdev->dev;
- pc->chip.ops = &tegra_pwm_ops;
- pc->chip.npwm = pc->soc->num_channels;
+ chip->ops = &tegra_pwm_ops;
- ret = pwmchip_add(&pc->chip);
+ ret = pwmchip_add(chip);
if (ret < 0) {
dev_err(&pdev->dev, "pwmchip_add() failed: %d\n", ret);
reset_control_assert(pc->rst);
@@ -350,9 +352,10 @@ static int tegra_pwm_probe(struct platform_device *pdev)
static void tegra_pwm_remove(struct platform_device *pdev)
{
- struct tegra_pwm_chip *pc = platform_get_drvdata(pdev);
+ struct pwm_chip *chip = platform_get_drvdata(pdev);
+ struct tegra_pwm_chip *pc = to_tegra_pwm_chip(chip);
- pwmchip_remove(&pc->chip);
+ pwmchip_remove(chip);
reset_control_assert(pc->rst);
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. Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> --- drivers/pwm/pwm-tegra.c | 27 +++++++++++++++------------ 1 file changed, 15 insertions(+), 12 deletions(-)