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pinctrl: exynos: Extract pin parsing code into a separate function

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Next commits are going to re-design the pin_to_bank_base() function and
its usage in a way that the pin parsing code will be called separately.
Extract it into a separate function first, as a refactoring commit.

No functional change.

Signed-off-by: Sam Protsenko <semen.protsenko@linaro.org>
Signed-off-by: Minkyu Kang <mk7.kang@samsung.com>
This commit is contained in:
Sam Protsenko 2023-11-30 14:13:47 -06:00 • committed by Tom Rini
parent 7b34206e3f
commit 58e84bf3d7
1 changed files with 17 additions and 10 deletions
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27
drivers/pinctrl/exynos/pinctrl-exynos.c
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@ -34,6 +34,22 @@ void exynos_pinctrl_setup_peri(struct exynos_pinctrl_config_data *conf,
}
}
static void parse_pin(const char *pin_name, u32 *pin, char *bank_name)
{
u32 idx = 0;
/*
* The format of the pin name is <bank_name name>-<pin_number>.
* Example: gpa0-4 (gpa0 is the bank_name name and 4 is the pin number.
*/
while (pin_name[idx] != '-') {
bank_name[idx] = pin_name[idx];
idx++;
}
bank_name[idx] = '\0';
*pin = pin_name[++idx] - '0';
}
/* given a pin-name, return the address of pin config registers */
static unsigned long pin_to_bank_base(struct udevice *dev, const char *pin_name,
u32 *pin)
@ -44,16 +60,7 @@ static unsigned long pin_to_bank_base(struct udevice *dev, const char *pin_name,
u32 nr_banks, pin_ctrl_idx = 0, idx = 0, bank_base;
char bank[10];
/*
* The format of the pin name is <bank name>-<pin_number>.
* Example: gpa0-4 (gpa0 is the bank name and 4 is the pin number.
*/
while (pin_name[idx] != '-') {
bank[idx] = pin_name[idx];
idx++;
}
bank[idx] = '\0';
*pin = pin_name[++idx] - '0';
parse_pin(pin_name, pin, bank);
/* lookup the pin bank data using the pin bank name */
while (true) {