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pinctrl: samsung: Explicitly cast pointer returned by of_iomap() to iomem

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For S5Pv210 retention control, the driver stores the iomem pointer from
of_iomap() under a void pointer member.  This makes sparse unhappy:

    drivers/pinctrl/samsung/pinctrl-exynos.c:664:36: warning: incorrect type in argument 1 (different address spaces)
    drivers/pinctrl/samsung/pinctrl-exynos.c:664:36:    expected void const volatile [noderef] <asn:2>*addr
    drivers/pinctrl/samsung/pinctrl-exynos.c:664:36:    got void *

The iomem pointer is used safely (stored under priv by
s5pv210_retention_init(), used by s5pv210_retention_disable()) thus we
can add explicit casts to iomem to silence the warning.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
This commit is contained in:
Krzysztof Kozlowski 2017-05-23 20:36:53 +02:00
parent a1ea9a400f
commit a453f3693f
1 changed files with 3 additions and 3 deletions
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6
drivers/pinctrl/samsung/pinctrl-exynos-arm.c
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@ -47,7 +47,7 @@ static const struct samsung_pin_bank_type bank_type_alive = {
static void s5pv210_retention_disable(struct samsung_pinctrl_drv_data *drvdata)
{
void *clk_base = drvdata->retention_ctrl->priv;
void __iomem *clk_base = (void __iomem *)drvdata->retention_ctrl->priv;
u32 tmp;
tmp = __raw_readl(clk_base + S5P_OTHERS);
@ -62,7 +62,7 @@ s5pv210_retention_init(struct samsung_pinctrl_drv_data *drvdata,
{
struct samsung_retention_ctrl *ctrl;
struct device_node *np;
void *clk_base;
void __iomem *clk_base;
ctrl = devm_kzalloc(drvdata->dev, sizeof(*ctrl), GFP_KERNEL);
if (!ctrl)
@ -81,7 +81,7 @@ s5pv210_retention_init(struct samsung_pinctrl_drv_data *drvdata,
return ERR_PTR(-EINVAL);
}
ctrl->priv = clk_base;
ctrl->priv = (void __force *)clk_base;
ctrl->disable = s5pv210_retention_disable;
return ctrl;