diff options
Diffstat (limited to 'drivers/pinctrl/pinctrl-single.c')
-rw-r--r-- | drivers/pinctrl/pinctrl-single.c | 79 |
1 files changed, 2 insertions, 77 deletions
diff --git a/drivers/pinctrl/pinctrl-single.c b/drivers/pinctrl/pinctrl-single.c index f6a360b86eb6..5c32e880bcb2 100644 --- a/drivers/pinctrl/pinctrl-single.c +++ b/drivers/pinctrl/pinctrl-single.c | |||
@@ -30,7 +30,6 @@ | |||
30 | #define PCS_MUX_BITS_NAME "pinctrl-single,bits" | 30 | #define PCS_MUX_BITS_NAME "pinctrl-single,bits" |
31 | #define PCS_REG_NAME_LEN ((sizeof(unsigned long) * 2) + 1) | 31 | #define PCS_REG_NAME_LEN ((sizeof(unsigned long) * 2) + 1) |
32 | #define PCS_OFF_DISABLED ~0U | 32 | #define PCS_OFF_DISABLED ~0U |
33 | #define PCS_MAX_GPIO_VALUES 2 | ||
34 | 33 | ||
35 | /** | 34 | /** |
36 | * struct pcs_pingroup - pingroups for a function | 35 | * struct pcs_pingroup - pingroups for a function |
@@ -78,16 +77,6 @@ struct pcs_function { | |||
78 | }; | 77 | }; |
79 | 78 | ||
80 | /** | 79 | /** |
81 | * struct pcs_gpio_range - pinctrl gpio range | ||
82 | * @range: subrange of the GPIO number space | ||
83 | * @gpio_func: gpio function value in the pinmux register | ||
84 | */ | ||
85 | struct pcs_gpio_range { | ||
86 | struct pinctrl_gpio_range range; | ||
87 | int gpio_func; | ||
88 | }; | ||
89 | |||
90 | /** | ||
91 | * struct pcs_data - wrapper for data needed by pinctrl framework | 80 | * struct pcs_data - wrapper for data needed by pinctrl framework |
92 | * @pa: pindesc array | 81 | * @pa: pindesc array |
93 | * @cur: index to current element | 82 | * @cur: index to current element |
@@ -414,26 +403,9 @@ static void pcs_disable(struct pinctrl_dev *pctldev, unsigned fselector, | |||
414 | } | 403 | } |
415 | 404 | ||
416 | static int pcs_request_gpio(struct pinctrl_dev *pctldev, | 405 | static int pcs_request_gpio(struct pinctrl_dev *pctldev, |
417 | struct pinctrl_gpio_range *range, unsigned pin) | 406 | struct pinctrl_gpio_range *range, unsigned offset) |
418 | { | 407 | { |
419 | struct pcs_device *pcs = pinctrl_dev_get_drvdata(pctldev); | 408 | return -ENOTSUPP; |
420 | struct pcs_gpio_range *gpio = NULL; | ||
421 | int end, mux_bytes; | ||
422 | unsigned data; | ||
423 | |||
424 | gpio = container_of(range, struct pcs_gpio_range, range); | ||
425 | end = range->pin_base + range->npins - 1; | ||
426 | if (pin < range->pin_base || pin > end) { | ||
427 | dev_err(pctldev->dev, | ||
428 | "pin %d isn't in the range of %d to %d\n", | ||
429 | pin, range->pin_base, end); | ||
430 | return -EINVAL; | ||
431 | } | ||
432 | mux_bytes = pcs->width / BITS_PER_BYTE; | ||
433 | data = pcs->read(pcs->base + pin * mux_bytes) & ~pcs->fmask; | ||
434 | data |= gpio->gpio_func; | ||
435 | pcs->write(data, pcs->base + pin * mux_bytes); | ||
436 | return 0; | ||
437 | } | 409 | } |
438 | 410 | ||
439 | static struct pinmux_ops pcs_pinmux_ops = { | 411 | static struct pinmux_ops pcs_pinmux_ops = { |
@@ -907,49 +879,6 @@ static void pcs_free_resources(struct pcs_device *pcs) | |||
907 | 879 | ||
908 | static struct of_device_id pcs_of_match[]; | 880 | static struct of_device_id pcs_of_match[]; |
909 | 881 | ||
910 | static int pcs_add_gpio_range(struct device_node *node, struct pcs_device *pcs) | ||
911 | { | ||
912 | struct pcs_gpio_range *gpio; | ||
913 | struct device_node *child; | ||
914 | struct resource r; | ||
915 | const char name[] = "pinctrl-single"; | ||
916 | u32 gpiores[PCS_MAX_GPIO_VALUES]; | ||
917 | int ret, i = 0, mux_bytes = 0; | ||
918 | |||
919 | for_each_child_of_node(node, child) { | ||
920 | ret = of_address_to_resource(child, 0, &r); | ||
921 | if (ret < 0) | ||
922 | continue; | ||
923 | memset(gpiores, 0, sizeof(u32) * PCS_MAX_GPIO_VALUES); | ||
924 | ret = of_property_read_u32_array(child, "pinctrl-single,gpio", | ||
925 | gpiores, PCS_MAX_GPIO_VALUES); | ||
926 | if (ret < 0) | ||
927 | continue; | ||
928 | gpio = devm_kzalloc(pcs->dev, sizeof(*gpio), GFP_KERNEL); | ||
929 | if (!gpio) { | ||
930 | dev_err(pcs->dev, "failed to allocate pcs gpio\n"); | ||
931 | return -ENOMEM; | ||
932 | } | ||
933 | gpio->range.name = devm_kzalloc(pcs->dev, sizeof(name), | ||
934 | GFP_KERNEL); | ||
935 | if (!gpio->range.name) { | ||
936 | dev_err(pcs->dev, "failed to allocate range name\n"); | ||
937 | return -ENOMEM; | ||
938 | } | ||
939 | memcpy((char *)gpio->range.name, name, sizeof(name)); | ||
940 | |||
941 | gpio->range.id = i++; | ||
942 | gpio->range.base = gpiores[0]; | ||
943 | gpio->gpio_func = gpiores[1]; | ||
944 | mux_bytes = pcs->width / BITS_PER_BYTE; | ||
945 | gpio->range.pin_base = (r.start - pcs->res->start) / mux_bytes; | ||
946 | gpio->range.npins = (r.end - r.start) / mux_bytes + 1; | ||
947 | |||
948 | pinctrl_add_gpio_range(pcs->pctl, &gpio->range); | ||
949 | } | ||
950 | return 0; | ||
951 | } | ||
952 | |||
953 | static int pcs_probe(struct platform_device *pdev) | 882 | static int pcs_probe(struct platform_device *pdev) |
954 | { | 883 | { |
955 | struct device_node *np = pdev->dev.of_node; | 884 | struct device_node *np = pdev->dev.of_node; |
@@ -1046,10 +975,6 @@ static int pcs_probe(struct platform_device *pdev) | |||
1046 | goto free; | 975 | goto free; |
1047 | } | 976 | } |
1048 | 977 | ||
1049 | ret = pcs_add_gpio_range(np, pcs); | ||
1050 | if (ret < 0) | ||
1051 | goto free; | ||
1052 | |||
1053 | dev_info(pcs->dev, "%i pins at pa %p size %u\n", | 978 | dev_info(pcs->dev, "%i pins at pa %p size %u\n", |
1054 | pcs->desc.npins, pcs->base, pcs->size); | 979 | pcs->desc.npins, pcs->base, pcs->size); |
1055 | 980 | ||