diff options
| author | Tomasz Figa <t.figa@samsung.com> | 2012-10-11 10:11:09 +0200 |
|---|---|---|
| committer | Linus Walleij <linus.walleij@linaro.org> | 2012-10-15 09:10:11 +0200 |
| commit | 40ba6227aeb3712b0cea0c4f9c3e355cf801f4c4 (patch) | |
| tree | 1c253f6caa545c065c0bfc3c31cbdcf128501016 /drivers/pinctrl/pinctrl-samsung.c | |
| parent | pinctrl: samsung: Do not pass gpio_chip to pin_to_reg_bank (diff) | |
| download | linux-40ba6227aeb3712b0cea0c4f9c3e355cf801f4c4.tar.xz linux-40ba6227aeb3712b0cea0c4f9c3e355cf801f4c4.zip | |
pinctrl: samsung: Assing pin numbers dynamically
This patch modifies the pinctrl-samsung driver to assign numbers to pins
dynamically instead of static enumerations.
Thanks to this change the amount of code requried to support a SoC can
be greatly reduced and the code made more readable.
Signed-off-by: Tomasz Figa <t.figa@samsung.com>
Reviewed-by: Kyungmin Park <kyungmin.park@samsung.com>
Acked-by: Thomas Abraham <thomas.abraham@linaro.org>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
Diffstat (limited to 'drivers/pinctrl/pinctrl-samsung.c')
| -rw-r--r-- | drivers/pinctrl/pinctrl-samsung.c | 22 |
1 files changed, 21 insertions, 1 deletions
diff --git a/drivers/pinctrl/pinctrl-samsung.c b/drivers/pinctrl/pinctrl-samsung.c index aa42d54e89c6..f219bb6779ef 100644 --- a/drivers/pinctrl/pinctrl-samsung.c +++ b/drivers/pinctrl/pinctrl-samsung.c @@ -46,6 +46,8 @@ struct pin_config { { "samsung,pin-pud-pdn", PINCFG_TYPE_PUD_PDN }, }; +static unsigned int pin_base = 0; + /* check if the selector is a valid pin group selector */ static int samsung_get_group_count(struct pinctrl_dev *pctldev) { @@ -792,6 +794,9 @@ static struct samsung_pin_ctrl *samsung_pinctrl_get_soc_data( int id; const struct of_device_id *match; const struct device_node *node = pdev->dev.of_node; + struct samsung_pin_ctrl *ctrl; + struct samsung_pin_bank *bank; + int i; id = of_alias_get_id(pdev->dev.of_node, "pinctrl"); if (id < 0) { @@ -799,7 +804,22 @@ static struct samsung_pin_ctrl *samsung_pinctrl_get_soc_data( return NULL; } match = of_match_node(samsung_pinctrl_dt_match, node); - return (struct samsung_pin_ctrl *)match->data + id; + ctrl = (struct samsung_pin_ctrl *)match->data + id; + + bank = ctrl->pin_banks; + for (i = 0; i < ctrl->nr_banks; ++i, ++bank) { + bank->pin_base = ctrl->nr_pins; + ctrl->nr_pins += bank->nr_pins; + if (bank->eint_type == EINT_TYPE_GPIO) { + bank->irq_base = ctrl->nr_gint; + ctrl->nr_gint += bank->nr_pins; + } + } + + ctrl->base = pin_base; + pin_base += ctrl->nr_pins; + + return ctrl; } static int __devinit samsung_pinctrl_probe(struct platform_device *pdev) |