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pinctrl: mediatek: add mtk_pctrl_spec_pull_set_samereg common code

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Several mediatek soc use similar pull setting procedure as mt8173,
the pupd enable and resistance setting are in the same register.
Add common code mtk_pctrl_spec_pull_set_samereg out of spec_pull_set
in mt8173 to handle this case, so future soc driver can use it.

Signed-off-by: Yingjoe Chen <yingjoe.chen@mediatek.com>
Signed-off-by: Hongzhou Yang <hongzhou.yang@mediatek.com>
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
This commit is contained in:
Yingjoe Chen 2015-05-18 23:11:15 -07:00 committed by Linus Walleij
parent 4b9b526846
commit e73fe2713f
3 changed files with 136 additions and 121 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

166
drivers/pinctrl/mediatek/pinctrl-mt8173.c
View File

@ -47,130 +47,54 @@ struct mtk_pin_ies_smt_set {
.offset = _offset, \
}
/**
* struct mtk_pin_spec_pupd_set - For special pins' pull up/down setting.
* @pin: The pin number.
* @offset: The offset of special pull up/down setting register.
* @pupd_bit: The pull up/down bit in this register.
* @r0_bit: The r0 bit of pull resistor.
* @r1_bit: The r1 bit of pull resistor.
*/
struct mtk_pin_spec_pupd_set {
unsigned int pin;
unsigned int offset;
unsigned char pupd_bit;
unsigned char r1_bit;
unsigned char r0_bit;
static const struct mtk_pin_spec_pupd_set_samereg mt8173_spec_pupd[] = {
MTK_PIN_PUPD_SPEC_SR(119, 0xe00, 2, 1, 0), /* KROW0 */
MTK_PIN_PUPD_SPEC_SR(120, 0xe00, 6, 5, 4), /* KROW1 */
MTK_PIN_PUPD_SPEC_SR(121, 0xe00, 10, 9, 8), /* KROW2 */
MTK_PIN_PUPD_SPEC_SR(122, 0xe10, 2, 1, 0), /* KCOL0 */
MTK_PIN_PUPD_SPEC_SR(123, 0xe10, 6, 5, 4), /* KCOL1 */
MTK_PIN_PUPD_SPEC_SR(124, 0xe10, 10, 9, 8), /* KCOL2 */
MTK_PIN_PUPD_SPEC_SR(67, 0xd10, 2, 1, 0), /* ms0 DS */
MTK_PIN_PUPD_SPEC_SR(68, 0xd00, 2, 1, 0), /* ms0 RST */
MTK_PIN_PUPD_SPEC_SR(66, 0xc10, 2, 1, 0), /* ms0 cmd */
MTK_PIN_PUPD_SPEC_SR(65, 0xc00, 2, 1, 0), /* ms0 clk */
MTK_PIN_PUPD_SPEC_SR(57, 0xc20, 2, 1, 0), /* ms0 data0 */
MTK_PIN_PUPD_SPEC_SR(58, 0xc20, 2, 1, 0), /* ms0 data1 */
MTK_PIN_PUPD_SPEC_SR(59, 0xc20, 2, 1, 0), /* ms0 data2 */
MTK_PIN_PUPD_SPEC_SR(60, 0xc20, 2, 1, 0), /* ms0 data3 */
MTK_PIN_PUPD_SPEC_SR(61, 0xc20, 2, 1, 0), /* ms0 data4 */
MTK_PIN_PUPD_SPEC_SR(62, 0xc20, 2, 1, 0), /* ms0 data5 */
MTK_PIN_PUPD_SPEC_SR(63, 0xc20, 2, 1, 0), /* ms0 data6 */
MTK_PIN_PUPD_SPEC_SR(64, 0xc20, 2, 1, 0), /* ms0 data7 */
MTK_PIN_PUPD_SPEC_SR(78, 0xc50, 2, 1, 0), /* ms1 cmd */
MTK_PIN_PUPD_SPEC_SR(73, 0xd20, 2, 1, 0), /* ms1 dat0 */
MTK_PIN_PUPD_SPEC_SR(74, 0xd20, 6, 5, 4), /* ms1 dat1 */
MTK_PIN_PUPD_SPEC_SR(75, 0xd20, 10, 9, 8), /* ms1 dat2 */
MTK_PIN_PUPD_SPEC_SR(76, 0xd20, 14, 13, 12), /* ms1 dat3 */
MTK_PIN_PUPD_SPEC_SR(77, 0xc40, 2, 1, 0), /* ms1 clk */
MTK_PIN_PUPD_SPEC_SR(100, 0xd40, 2, 1, 0), /* ms2 dat0 */
MTK_PIN_PUPD_SPEC_SR(101, 0xd40, 6, 5, 4), /* ms2 dat1 */
MTK_PIN_PUPD_SPEC_SR(102, 0xd40, 10, 9, 8), /* ms2 dat2 */
MTK_PIN_PUPD_SPEC_SR(103, 0xd40, 14, 13, 12), /* ms2 dat3 */
MTK_PIN_PUPD_SPEC_SR(104, 0xc80, 2, 1, 0), /* ms2 clk */
MTK_PIN_PUPD_SPEC_SR(105, 0xc90, 2, 1, 0), /* ms2 cmd */
MTK_PIN_PUPD_SPEC_SR(22, 0xd60, 2, 1, 0), /* ms3 dat0 */
MTK_PIN_PUPD_SPEC_SR(23, 0xd60, 6, 5, 4), /* ms3 dat1 */
MTK_PIN_PUPD_SPEC_SR(24, 0xd60, 10, 9, 8), /* ms3 dat2 */
MTK_PIN_PUPD_SPEC_SR(25, 0xd60, 14, 13, 12), /* ms3 dat3 */
MTK_PIN_PUPD_SPEC_SR(26, 0xcc0, 2, 1, 0), /* ms3 clk */
MTK_PIN_PUPD_SPEC_SR(27, 0xcd0, 2, 1, 0) /* ms3 cmd */
};
#define MTK_PIN_PUPD_SPEC(_pin, _offset, _pupd, _r1, _r0) \
{ \
.pin = _pin, \
.offset = _offset, \
.pupd_bit = _pupd, \
.r1_bit = _r1, \
.r0_bit = _r0, \
}
static const struct mtk_pin_spec_pupd_set mt8173_spec_pupd[] = {
MTK_PIN_PUPD_SPEC(119, 0xe00, 2, 1, 0), /* KROW0 */
MTK_PIN_PUPD_SPEC(120, 0xe00, 6, 5, 4), /* KROW1 */
MTK_PIN_PUPD_SPEC(121, 0xe00, 10, 9, 8), /* KROW2 */
MTK_PIN_PUPD_SPEC(122, 0xe10, 2, 1, 0), /* KCOL0 */
MTK_PIN_PUPD_SPEC(123, 0xe10, 6, 5, 4), /* KCOL1 */
MTK_PIN_PUPD_SPEC(124, 0xe10, 10, 9, 8), /* KCOL2 */
MTK_PIN_PUPD_SPEC(67, 0xd10, 2, 1, 0), /* ms0 DS */
MTK_PIN_PUPD_SPEC(68, 0xd00, 2, 1, 0), /* ms0 RST */
MTK_PIN_PUPD_SPEC(66, 0xc10, 2, 1, 0), /* ms0 cmd */
MTK_PIN_PUPD_SPEC(65, 0xc00, 2, 1, 0), /* ms0 clk */
MTK_PIN_PUPD_SPEC(57, 0xc20, 2, 1, 0), /* ms0 data0 */
MTK_PIN_PUPD_SPEC(58, 0xc20, 2, 1, 0), /* ms0 data1 */
MTK_PIN_PUPD_SPEC(59, 0xc20, 2, 1, 0), /* ms0 data2 */
MTK_PIN_PUPD_SPEC(60, 0xc20, 2, 1, 0), /* ms0 data3 */
MTK_PIN_PUPD_SPEC(61, 0xc20, 2, 1, 0), /* ms0 data4 */
MTK_PIN_PUPD_SPEC(62, 0xc20, 2, 1, 0), /* ms0 data5 */
MTK_PIN_PUPD_SPEC(63, 0xc20, 2, 1, 0), /* ms0 data6 */
MTK_PIN_PUPD_SPEC(64, 0xc20, 2, 1, 0), /* ms0 data7 */
MTK_PIN_PUPD_SPEC(78, 0xc50, 2, 1, 0), /* ms1 cmd */
MTK_PIN_PUPD_SPEC(73, 0xd20, 2, 1, 0), /* ms1 dat0 */
MTK_PIN_PUPD_SPEC(74, 0xd20, 6, 5, 4), /* ms1 dat1 */
MTK_PIN_PUPD_SPEC(75, 0xd20, 10, 9, 8), /* ms1 dat2 */
MTK_PIN_PUPD_SPEC(76, 0xd20, 14, 13, 12), /* ms1 dat3 */
MTK_PIN_PUPD_SPEC(77, 0xc40, 2, 1, 0), /* ms1 clk */
MTK_PIN_PUPD_SPEC(100, 0xd40, 2, 1, 0), /* ms2 dat0 */
MTK_PIN_PUPD_SPEC(101, 0xd40, 6, 5, 4), /* ms2 dat1 */
MTK_PIN_PUPD_SPEC(102, 0xd40, 10, 9, 8), /* ms2 dat2 */
MTK_PIN_PUPD_SPEC(103, 0xd40, 14, 13, 12), /* ms2 dat3 */
MTK_PIN_PUPD_SPEC(104, 0xc80, 2, 1, 0), /* ms2 clk */
MTK_PIN_PUPD_SPEC(105, 0xc90, 2, 1, 0), /* ms2 cmd */
MTK_PIN_PUPD_SPEC(22, 0xd60, 2, 1, 0), /* ms3 dat0 */
MTK_PIN_PUPD_SPEC(23, 0xd60, 6, 5, 4), /* ms3 dat1 */
MTK_PIN_PUPD_SPEC(24, 0xd60, 10, 9, 8), /* ms3 dat2 */
MTK_PIN_PUPD_SPEC(25, 0xd60, 14, 13, 12), /* ms3 dat3 */
MTK_PIN_PUPD_SPEC(26, 0xcc0, 2, 1, 0), /* ms3 clk */
MTK_PIN_PUPD_SPEC(27, 0xcd0, 2, 1, 0) /* ms3 cmd */
};
static int spec_pull_set(struct regmap *regmap, unsigned int pin,
static int mt8173_spec_pull_set(struct regmap *regmap, unsigned int pin,
unsigned char align, bool isup, unsigned int r1r0)
{
unsigned int i;
unsigned int reg_pupd, reg_set, reg_rst;
unsigned int bit_pupd, bit_r0, bit_r1;
const struct mtk_pin_spec_pupd_set *spec_pupd_pin;
bool find = false;
for (i = 0; i < ARRAY_SIZE(mt8173_spec_pupd); i++) {
if (pin == mt8173_spec_pupd[i].pin) {
find = true;
break;
}
}
if (!find)
return -EINVAL;
spec_pupd_pin = mt8173_spec_pupd + i;
reg_set = spec_pupd_pin->offset + align;
reg_rst = spec_pupd_pin->offset + (align << 1);
if (isup)
reg_pupd = reg_rst;
else
reg_pupd = reg_set;
bit_pupd = BIT(spec_pupd_pin->pupd_bit);
regmap_write(regmap, reg_pupd, bit_pupd);
bit_r0 = BIT(spec_pupd_pin->r0_bit);
bit_r1 = BIT(spec_pupd_pin->r1_bit);
switch (r1r0) {
case MTK_PUPD_SET_R1R0_00:
regmap_write(regmap, reg_rst, bit_r0);
regmap_write(regmap, reg_rst, bit_r1);
break;
case MTK_PUPD_SET_R1R0_01:
regmap_write(regmap, reg_set, bit_r0);
regmap_write(regmap, reg_rst, bit_r1);
break;
case MTK_PUPD_SET_R1R0_10:
regmap_write(regmap, reg_rst, bit_r0);
regmap_write(regmap, reg_set, bit_r1);
break;
case MTK_PUPD_SET_R1R0_11:
regmap_write(regmap, reg_set, bit_r0);
regmap_write(regmap, reg_set, bit_r1);
break;
default:
return -EINVAL;
}
return 0;
return mtk_pctrl_spec_pull_set_samereg(regmap, mt8173_spec_pupd,
ARRAY_SIZE(mt8173_spec_pupd), pin, align, isup, r1r0);
}
static const struct mtk_pin_ies_smt_set mt8173_ies_smt_set[] = {
@ -382,7 +306,7 @@ static const struct mtk_pinctrl_devdata mt8173_pinctrl_data = {
.n_grp_cls = ARRAY_SIZE(mt8173_drv_grp),
.pin_drv_grp = mt8173_pin_drv,
.n_pin_drv_grps = ARRAY_SIZE(mt8173_pin_drv),
.spec_pull_set = spec_pull_set,
.spec_pull_set = mt8173_spec_pull_set,
.spec_ies_smt_set = spec_ies_smt_set,
.dir_offset = 0x0000,
.pullen_offset = 0x0100,

60
drivers/pinctrl/mediatek/pinctrl-mtk-common.c
View File

@ -186,6 +186,66 @@ static int mtk_pconf_set_driving(struct mtk_pinctrl *pctl,
return -EINVAL;
}
int mtk_pctrl_spec_pull_set_samereg(struct regmap *regmap,
const struct mtk_pin_spec_pupd_set_samereg *pupd_infos,
unsigned int info_num, unsigned int pin,
unsigned char align, bool isup, unsigned int r1r0)
{
unsigned int i;
unsigned int reg_pupd, reg_set, reg_rst;
unsigned int bit_pupd, bit_r0, bit_r1;
const struct mtk_pin_spec_pupd_set_samereg *spec_pupd_pin;
bool find = false;
for (i = 0; i < info_num; i++) {
if (pin == pupd_infos[i].pin) {
find = true;
break;
}
}
if (!find)
return -EINVAL;
spec_pupd_pin = pupd_infos + i;
reg_set = spec_pupd_pin->offset + align;
reg_rst = spec_pupd_pin->offset + (align << 1);
if (isup)
reg_pupd = reg_rst;
else
reg_pupd = reg_set;
bit_pupd = BIT(spec_pupd_pin->pupd_bit);
regmap_write(regmap, reg_pupd, bit_pupd);
bit_r0 = BIT(spec_pupd_pin->r0_bit);
bit_r1 = BIT(spec_pupd_pin->r1_bit);
switch (r1r0) {
case MTK_PUPD_SET_R1R0_00:
regmap_write(regmap, reg_rst, bit_r0);
regmap_write(regmap, reg_rst, bit_r1);
break;
case MTK_PUPD_SET_R1R0_01:
regmap_write(regmap, reg_set, bit_r0);
regmap_write(regmap, reg_rst, bit_r1);
break;
case MTK_PUPD_SET_R1R0_10:
regmap_write(regmap, reg_rst, bit_r0);
regmap_write(regmap, reg_set, bit_r1);
break;
case MTK_PUPD_SET_R1R0_11:
regmap_write(regmap, reg_set, bit_r0);
regmap_write(regmap, reg_set, bit_r1);
break;
default:
return -EINVAL;
}
return 0;
}
static int mtk_pconf_set_pull_select(struct mtk_pinctrl *pctl,
unsigned int pin, bool enable, bool isup, unsigned int arg)
{

31
drivers/pinctrl/mediatek/pinctrl-mtk-common.h
View File

@ -117,6 +117,32 @@ struct mtk_pin_drv_grp {
.grp = _grp, \
}
/**
* struct mtk_pin_spec_pupd_set_samereg
* - For special pins' pull up/down setting which resides in same register
* @pin: The pin number.
* @offset: The offset of special pull up/down setting register.
* @pupd_bit: The pull up/down bit in this register.
* @r0_bit: The r0 bit of pull resistor.
* @r1_bit: The r1 bit of pull resistor.
*/
struct mtk_pin_spec_pupd_set_samereg {
unsigned short pin;
unsigned short offset;
unsigned char pupd_bit;
unsigned char r1_bit;
unsigned char r0_bit;
};
#define MTK_PIN_PUPD_SPEC_SR(_pin, _offset, _pupd, _r1, _r0) \
{ \
.pin = _pin, \
.offset = _offset, \
.pupd_bit = _pupd, \
.r1_bit = _r1, \
.r0_bit = _r0, \
}
struct mtk_eint_offsets {
const char *name;
unsigned int stat;
@ -220,4 +246,9 @@ struct mtk_pinctrl {
int mtk_pctrl_init(struct platform_device *pdev,
const struct mtk_pinctrl_devdata *data);
int mtk_pctrl_spec_pull_set_samereg(struct regmap *regmap,
const struct mtk_pin_spec_pupd_set_samereg *pupd_infos,
unsigned int info_num, unsigned int pin,
unsigned char align, bool isup, unsigned int r1r0);
#endif /* __PINCTRL_MTK_COMMON_H */