Re: [PATCH v1 3/3] pinctrl: th1520: Factor out casts

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Op 11-10-2024 om 16:48 schreef Emil Renner Berthing:
Limit the casts to get the mux data and flags from the driver data
pointer with each pin to two inline functions as requested by Andy
during review.

Signed-off-by: Emil Renner Berthing <emil.renner.berthing@xxxxxxxxxxxxx>
---
  drivers/pinctrl/pinctrl-th1520.c | 22 +++++++++++++++++-----
  1 file changed, 17 insertions(+), 5 deletions(-)

diff --git a/drivers/pinctrl/pinctrl-th1520.c b/drivers/pinctrl/pinctrl-th1520.c
index 8bd40cb2f013..7474d8da32f9 100644
--- a/drivers/pinctrl/pinctrl-th1520.c
+++ b/drivers/pinctrl/pinctrl-th1520.c
@@ -152,6 +152,16 @@ static enum th1520_muxtype th1520_muxtype_get(const char *str)
  		(TH1520_MUX_##m0 <<  0) | (TH1520_MUX_##m1 <<  5) | (TH1520_MUX_##m2 << 10) | \
  		(TH1520_MUX_##m3 << 15) | (TH1520_MUX_##m4 << 20) | (TH1520_MUX_##m5 << 25)) }
+static unsigned long th1520_pad_muxdata(void *drv_data)
+{
+	return (uintptr_t)drv_data & TH1520_PAD_MUXDATA;
+}
+
+static bool th1520_pad_no_padcfg(void *drv_data)
+{
+	return (uintptr_t)drv_data & TH1520_PAD_NO_PADCFG;
+}
+
  static const struct pinctrl_pin_desc th1520_group1_pins[] = {
  	TH1520_PAD(0,  OSC_CLK_IN,    ____, ____, ____, ____, ____, ____, TH1520_PAD_NO_PADCFG),
  	TH1520_PAD(1,  OSC_CLK_OUT,   ____, ____, ____, ____, ____, ____, TH1520_PAD_NO_PADCFG),
@@ -590,7 +600,7 @@ static int th1520_pinconf_get(struct pinctrl_dev *pctldev,
  	u32 value;
  	u32 arg;
- if ((uintptr_t)desc->drv_data & TH1520_PAD_NO_PADCFG)
+	if (th1520_pad_no_padcfg(desc->drv_data))
  		return -ENOTSUPP;
value = readl_relaxed(th1520_padcfg(thp, pin));
@@ -660,7 +670,7 @@ static int th1520_pinconf_set(struct pinctrl_dev *pctldev, unsigned int pin,
  	unsigned int i;
  	u16 mask, value;
- if ((uintptr_t)desc->drv_data & TH1520_PAD_NO_PADCFG)
+	if (th1520_pad_no_padcfg(desc->drv_data))
  		return -ENOTSUPP;
mask = 0;
@@ -793,12 +803,14 @@ static int th1520_pinmux_set_mux(struct pinctrl_dev *pctldev,
  {
  	struct th1520_pinctrl *thp = pinctrl_dev_get_drvdata(pctldev);
  	const struct function_desc *func = pinmux_generic_get_function(pctldev, fsel);
+	enum th1520_muxtype muxtype = (uintptr_t)func->data;
You cannot use func before checking for NULL (see if statement below)
if (!func)
  		return -EINVAL;
+
  	return th1520_pinmux_set(thp, thp->desc.pins[gsel].number,
-				 (uintptr_t)thp->desc.pins[gsel].drv_data & TH1520_PAD_MUXDATA,
-				 (uintptr_t)func->data);
+				 th1520_pad_muxdata(thp->desc.pins[gsel].drv_data),
+				 muxtype);
  }
static int th1520_gpio_request_enable(struct pinctrl_dev *pctldev,
@@ -809,7 +821,7 @@ static int th1520_gpio_request_enable(struct pinctrl_dev *pctldev,
  	const struct pin_desc *desc = pin_desc_get(pctldev, offset);
return th1520_pinmux_set(thp, offset,
-				 (uintptr_t)desc->drv_data & TH1520_PAD_MUXDATA,
+				 th1520_pad_muxdata(desc->drv_data),
  				 TH1520_MUX_GPIO);
  }





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