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pwm: lpss: Move resource mapping to the glue drivers

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Move resource mapping to the glue drivers which helps
to transform pwm_lpss_probe() to pure library function
that may be used by others without need of specific
resource management.

Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
This commit is contained in:
Andy Shevchenko 2022-09-27 19:24:17 +03:00 committed by Thierry Reding
parent a3682d2fe3
commit 68af6fb00f
4 changed files with 14 additions and 10 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/pwm/pwm-lpss-pci.c
View File

@ -25,8 +25,12 @@ static int pwm_lpss_probe_pci(struct pci_dev *pdev,
if (err < 0)
return err;
err = pcim_iomap_regions(pdev, BIT(0), pci_name(pdev));
if (err)
return err;
info = (struct pwm_lpss_boardinfo *)id->driver_data;
lpwm = pwm_lpss_probe(&pdev->dev, &pdev->resource[0], info);
lpwm = pwm_lpss_probe(&pdev->dev, pcim_iomap_table(pdev)[0], info);
if (IS_ERR(lpwm))
return PTR_ERR(lpwm);

9
drivers/pwm/pwm-lpss-platform.c
View File

@ -21,16 +21,19 @@ static int pwm_lpss_probe_platform(struct platform_device *pdev)
const struct pwm_lpss_boardinfo *info;
const struct acpi_device_id *id;
struct pwm_lpss_chip *lpwm;
struct resource *r;
void __iomem *base;
id = acpi_match_device(pdev->dev.driver->acpi_match_table, &pdev->dev);
if (!id)
return -ENODEV;
info = (const struct pwm_lpss_boardinfo *)id->driver_data;
r = platform_get_resource(pdev, IORESOURCE_MEM, 0);
lpwm = pwm_lpss_probe(&pdev->dev, r, info);
base = devm_platform_ioremap_resource(pdev, 0);
if (IS_ERR(base))
return PTR_ERR(base);
lpwm = pwm_lpss_probe(&pdev->dev, base, info);
if (IS_ERR(lpwm))
return PTR_ERR(lpwm);

7
drivers/pwm/pwm-lpss.c
View File

@ -243,7 +243,7 @@ static const struct pwm_ops pwm_lpss_ops = {
.owner = THIS_MODULE,
};
struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, void __iomem *base,
const struct pwm_lpss_boardinfo *info)
{
struct pwm_lpss_chip *lpwm;
@ -258,10 +258,7 @@ struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
if (!lpwm)
return ERR_PTR(-ENOMEM);
lpwm->regs = devm_ioremap_resource(dev, r);
if (IS_ERR(lpwm->regs))
return ERR_CAST(lpwm->regs);
lpwm->regs = base;
lpwm->info = info;
c = lpwm->info->clk_rate;

2
drivers/pwm/pwm-lpss.h
View File

@ -38,7 +38,7 @@ extern const struct pwm_lpss_boardinfo pwm_lpss_bsw_info;
extern const struct pwm_lpss_boardinfo pwm_lpss_bxt_info;
extern const struct pwm_lpss_boardinfo pwm_lpss_tng_info;
struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, struct resource *r,
struct pwm_lpss_chip *pwm_lpss_probe(struct device *dev, void __iomem *base,
const struct pwm_lpss_boardinfo *info);
#endif /* __PWM_LPSS_H */