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Pin control fixes for the v4.6 series: 

- Make the i.MX driver select REGMAP as a dependency
 - Fix up the Mediatek debounce time unit
 - Fix a real hairy ffs vs __ffs issue in the Single pinctrl driver
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Merge tag 'pinctrl-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Some pin control driver fixes came in.  One headed for stable and the
  other two are just ordinary merge window fixes.

   - Make the i.MX driver select REGMAP as a dependency
   - Fix up the Mediatek debounce time unit
   - Fix a real hairy ffs vs __ffs issue in the Single pinctrl driver"

* tag 'pinctrl-v4.6-3' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  pinctrl: single: Fix pcs_parse_bits_in_pinctrl_entry to use __ffs than ffs
  pinctrl: mediatek: correct debounce time unit in mtk_gpio_set_debounce
  pinctrl: imx: Kconfig: PINCTRL_IMX select REGMAP
This commit is contained in:
Linus Torvalds 2016-04-22 11:52:49 -07:00
parent ddce192106 56b367c0cd
commit 09502d9fff
3 changed files with 9 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
drivers/pinctrl/freescale/Kconfig
View File

@ -2,6 +2,7 @@ config PINCTRL_IMX
bool
select PINMUX
select PINCONF
select REGMAP
config PINCTRL_IMX1_CORE
bool

9
drivers/pinctrl/mediatek/pinctrl-mtk-common.c
View File

@ -1004,7 +1004,8 @@ static int mtk_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
struct mtk_pinctrl *pctl = dev_get_drvdata(chip->parent);
int eint_num, virq, eint_offset;
unsigned int set_offset, bit, clr_bit, clr_offset, rst, i, unmask, dbnc;
static const unsigned int dbnc_arr[] = {0 , 1, 16, 32, 64, 128, 256};
static const unsigned int debounce_time[] = {500, 1000, 16000, 32000, 64000,
128000, 256000};
const struct mtk_desc_pin *pin;
struct irq_data *d;
@ -1022,9 +1023,9 @@ static int mtk_gpio_set_debounce(struct gpio_chip *chip, unsigned offset,
if (!mtk_eint_can_en_debounce(pctl, eint_num))
return -ENOSYS;
dbnc = ARRAY_SIZE(dbnc_arr);
for (i = 0; i < ARRAY_SIZE(dbnc_arr); i++) {
if (debounce <= dbnc_arr[i]) {
dbnc = ARRAY_SIZE(debounce_time);
for (i = 0; i < ARRAY_SIZE(debounce_time); i++) {
if (debounce <= debounce_time[i]) {
dbnc = i;
break;
}

6
drivers/pinctrl/pinctrl-single.c
View File

@ -1280,9 +1280,9 @@ static int pcs_parse_bits_in_pinctrl_entry(struct pcs_device *pcs,
/* Parse pins in each row from LSB */
while (mask) {
bit_pos = ffs(mask);
bit_pos = __ffs(mask);
pin_num_from_lsb = bit_pos / pcs->bits_per_pin;
mask_pos = ((pcs->fmask) << (bit_pos - 1));
mask_pos = ((pcs->fmask) << bit_pos);
val_pos = val & mask_pos;
submask = mask & mask_pos;
@ -1852,7 +1852,7 @@ static int pcs_probe(struct platform_device *pdev)
ret = of_property_read_u32(np, "pinctrl-single,function-mask",
&pcs->fmask);
if (!ret) {
pcs->fshift = ffs(pcs->fmask) - 1;
pcs->fshift = __ffs(pcs->fmask);
pcs->fmax = pcs->fmask >> pcs->fshift;
} else {
/* If mask property doesn't exist, function mux is invalid. */