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Subject[PATCH v1 3/9] pwm: lpss: Move resource mapping to the glue drivers
Date
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>
---
drivers/pwm/pwm-lpss-pci.c | 6 +++++-
drivers/pwm/pwm-lpss-platform.c | 9 ++++++---
drivers/pwm/pwm-lpss.c | 7 ++-----
drivers/pwm/pwm-lpss.h | 2 +-
4 files changed, 14 insertions(+), 10 deletions(-)

diff --git a/drivers/pwm/pwm-lpss-pci.c b/drivers/pwm/pwm-lpss-pci.c
index 9f2c666b95ec..f3367e844e61 100644
--- a/drivers/pwm/pwm-lpss-pci.c
+++ b/drivers/pwm/pwm-lpss-pci.c
@@ -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);

diff --git a/drivers/pwm/pwm-lpss-platform.c b/drivers/pwm/pwm-lpss-platform.c
index 96fde1b2b967..af57472f3ddc 100644
--- a/drivers/pwm/pwm-lpss-platform.c
+++ b/drivers/pwm/pwm-lpss-platform.c
@@ -20,16 +20,19 @@ 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);

diff --git a/drivers/pwm/pwm-lpss.c b/drivers/pwm/pwm-lpss.c
index a82a57eb2482..44f9bb80611d 100644
--- a/drivers/pwm/pwm-lpss.c
+++ b/drivers/pwm/pwm-lpss.c
@@ -207,7 +207,7 @@ 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;
@@ -222,10 +222,7 @@ 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;
diff --git a/drivers/pwm/pwm-lpss.h b/drivers/pwm/pwm-lpss.h
index 3864f32c2487..5995b6b750a8 100644
--- a/drivers/pwm/pwm-lpss.h
+++ b/drivers/pwm/pwm-lpss.h
@@ -63,7 +63,7 @@ static __maybe_unused const struct pwm_lpss_boardinfo pwm_lpss_tng_info = {
.base_unit_bits = 22,
};

-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 */
--
2.35.1
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