From 25d76b21b1b959b37520931fb6c4b8319a021705 Mon Sep 17 00:00:00 2001 From: Hongzhou Yang Date: Mon, 18 May 2015 23:11:16 -0700 Subject: [PATCH] pinctrl: mediatek: add ies/smt control to common code. Input enable and smt setting have different register, modify code to fix it. Several mediatek soc use similar input enable/smt setting procedure as mt8173, some soc use generic input enable/smt setting, some soc has no input enable/smt setting. Adding common code to handle all those cases, so future soc driver can use it. Signed-off-by: Hongzhou Yang Signed-off-by: Linus Walleij --- drivers/pinctrl/mediatek/pinctrl-mt8173.c | 201 ++++++++++-------- drivers/pinctrl/mediatek/pinctrl-mtk-common.c | 82 +++++-- drivers/pinctrl/mediatek/pinctrl-mtk-common.h | 31 ++- 3 files changed, 198 insertions(+), 116 deletions(-) diff --git a/drivers/pinctrl/mediatek/pinctrl-mt8173.c b/drivers/pinctrl/mediatek/pinctrl-mt8173.c index cc44b2766bfc..a7e5b2410944 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mt8173.c +++ b/drivers/pinctrl/mediatek/pinctrl-mt8173.c @@ -18,6 +18,7 @@ #include #include #include +#include #include #include "pinctrl-mtk-common.h" @@ -25,28 +26,6 @@ #define DRV_BASE 0xb00 -/** - * struct mtk_pin_ies_smt_set - For special pins' ies and smt setting. - * @start: The start pin number of those special pins. - * @end: The end pin number of those special pins. - * @offset: The offset of special setting register. - * @bit: The bit of special setting register. - */ -struct mtk_pin_ies_smt_set { - unsigned int start; - unsigned int end; - unsigned int offset; - unsigned char bit; -}; - -#define MTK_PIN_IES_SMT_SET(_start, _end, _offset, _bit) \ - { \ - .start = _start, \ - .end = _end, \ - .bit = _bit, \ - .offset = _offset, \ - } - 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 */ @@ -97,80 +76,114 @@ static int mt8173_spec_pull_set(struct regmap *regmap, unsigned int pin, ARRAY_SIZE(mt8173_spec_pupd), pin, align, isup, r1r0); } -static const struct mtk_pin_ies_smt_set mt8173_ies_smt_set[] = { - MTK_PIN_IES_SMT_SET(0, 4, 0x930, 1), - MTK_PIN_IES_SMT_SET(5, 9, 0x930, 2), - MTK_PIN_IES_SMT_SET(10, 13, 0x930, 10), - MTK_PIN_IES_SMT_SET(14, 15, 0x940, 10), - MTK_PIN_IES_SMT_SET(16, 16, 0x930, 0), - MTK_PIN_IES_SMT_SET(17, 17, 0x950, 2), - MTK_PIN_IES_SMT_SET(18, 21, 0x940, 3), - MTK_PIN_IES_SMT_SET(29, 32, 0x930, 3), - MTK_PIN_IES_SMT_SET(33, 33, 0x930, 4), - MTK_PIN_IES_SMT_SET(34, 36, 0x930, 5), - MTK_PIN_IES_SMT_SET(37, 38, 0x930, 6), - MTK_PIN_IES_SMT_SET(39, 39, 0x930, 7), - MTK_PIN_IES_SMT_SET(40, 41, 0x930, 9), - MTK_PIN_IES_SMT_SET(42, 42, 0x940, 0), - MTK_PIN_IES_SMT_SET(43, 44, 0x930, 11), - MTK_PIN_IES_SMT_SET(45, 46, 0x930, 12), - MTK_PIN_IES_SMT_SET(57, 64, 0xc20, 13), - MTK_PIN_IES_SMT_SET(65, 65, 0xc10, 13), - MTK_PIN_IES_SMT_SET(66, 66, 0xc00, 13), - MTK_PIN_IES_SMT_SET(67, 67, 0xd10, 13), - MTK_PIN_IES_SMT_SET(68, 68, 0xd00, 13), - MTK_PIN_IES_SMT_SET(69, 72, 0x940, 14), - MTK_PIN_IES_SMT_SET(73, 76, 0xc60, 13), - MTK_PIN_IES_SMT_SET(77, 77, 0xc40, 13), - MTK_PIN_IES_SMT_SET(78, 78, 0xc50, 13), - MTK_PIN_IES_SMT_SET(79, 82, 0x940, 15), - MTK_PIN_IES_SMT_SET(83, 83, 0x950, 0), - MTK_PIN_IES_SMT_SET(84, 85, 0x950, 1), - MTK_PIN_IES_SMT_SET(86, 91, 0x950, 2), - MTK_PIN_IES_SMT_SET(92, 92, 0x930, 13), - MTK_PIN_IES_SMT_SET(93, 95, 0x930, 14), - MTK_PIN_IES_SMT_SET(96, 99, 0x930, 15), - MTK_PIN_IES_SMT_SET(100, 103, 0xca0, 13), - MTK_PIN_IES_SMT_SET(104, 104, 0xc80, 13), - MTK_PIN_IES_SMT_SET(105, 105, 0xc90, 13), - MTK_PIN_IES_SMT_SET(106, 107, 0x940, 4), - MTK_PIN_IES_SMT_SET(108, 112, 0x940, 1), - MTK_PIN_IES_SMT_SET(113, 116, 0x940, 2), - MTK_PIN_IES_SMT_SET(117, 118, 0x940, 5), - MTK_PIN_IES_SMT_SET(119, 124, 0x940, 6), - MTK_PIN_IES_SMT_SET(125, 126, 0x940, 7), - MTK_PIN_IES_SMT_SET(127, 127, 0x940, 0), - MTK_PIN_IES_SMT_SET(128, 128, 0x950, 8), - MTK_PIN_IES_SMT_SET(129, 130, 0x950, 9), - MTK_PIN_IES_SMT_SET(131, 132, 0x950, 8), - MTK_PIN_IES_SMT_SET(133, 134, 0x910, 8) +static const struct mtk_pin_ies_smt_set mt8173_smt_set[] = { + MTK_PIN_IES_SMT_SPEC(0, 4, 0x930, 1), + MTK_PIN_IES_SMT_SPEC(5, 9, 0x930, 2), + MTK_PIN_IES_SMT_SPEC(10, 13, 0x930, 10), + MTK_PIN_IES_SMT_SPEC(14, 15, 0x940, 10), + MTK_PIN_IES_SMT_SPEC(16, 16, 0x930, 0), + MTK_PIN_IES_SMT_SPEC(17, 17, 0x950, 2), + MTK_PIN_IES_SMT_SPEC(18, 21, 0x940, 3), + MTK_PIN_IES_SMT_SPEC(29, 32, 0x930, 3), + MTK_PIN_IES_SMT_SPEC(33, 33, 0x930, 4), + MTK_PIN_IES_SMT_SPEC(34, 36, 0x930, 5), + MTK_PIN_IES_SMT_SPEC(37, 38, 0x930, 6), + MTK_PIN_IES_SMT_SPEC(39, 39, 0x930, 7), + MTK_PIN_IES_SMT_SPEC(40, 41, 0x930, 9), + MTK_PIN_IES_SMT_SPEC(42, 42, 0x940, 0), + MTK_PIN_IES_SMT_SPEC(43, 44, 0x930, 11), + MTK_PIN_IES_SMT_SPEC(45, 46, 0x930, 12), + MTK_PIN_IES_SMT_SPEC(57, 64, 0xc20, 13), + MTK_PIN_IES_SMT_SPEC(65, 65, 0xc10, 13), + MTK_PIN_IES_SMT_SPEC(66, 66, 0xc00, 13), + MTK_PIN_IES_SMT_SPEC(67, 67, 0xd10, 13), + MTK_PIN_IES_SMT_SPEC(68, 68, 0xd00, 13), + MTK_PIN_IES_SMT_SPEC(69, 72, 0x940, 14), + MTK_PIN_IES_SMT_SPEC(73, 76, 0xc60, 13), + MTK_PIN_IES_SMT_SPEC(77, 77, 0xc40, 13), + MTK_PIN_IES_SMT_SPEC(78, 78, 0xc50, 13), + MTK_PIN_IES_SMT_SPEC(79, 82, 0x940, 15), + MTK_PIN_IES_SMT_SPEC(83, 83, 0x950, 0), + MTK_PIN_IES_SMT_SPEC(84, 85, 0x950, 1), + MTK_PIN_IES_SMT_SPEC(86, 91, 0x950, 2), + MTK_PIN_IES_SMT_SPEC(92, 92, 0x930, 13), + MTK_PIN_IES_SMT_SPEC(93, 95, 0x930, 14), + MTK_PIN_IES_SMT_SPEC(96, 99, 0x930, 15), + MTK_PIN_IES_SMT_SPEC(100, 103, 0xca0, 13), + MTK_PIN_IES_SMT_SPEC(104, 104, 0xc80, 13), + MTK_PIN_IES_SMT_SPEC(105, 105, 0xc90, 13), + MTK_PIN_IES_SMT_SPEC(106, 107, 0x940, 4), + MTK_PIN_IES_SMT_SPEC(108, 112, 0x940, 1), + MTK_PIN_IES_SMT_SPEC(113, 116, 0x940, 2), + MTK_PIN_IES_SMT_SPEC(117, 118, 0x940, 5), + MTK_PIN_IES_SMT_SPEC(119, 124, 0x940, 6), + MTK_PIN_IES_SMT_SPEC(125, 126, 0x940, 7), + MTK_PIN_IES_SMT_SPEC(127, 127, 0x940, 0), + MTK_PIN_IES_SMT_SPEC(128, 128, 0x950, 8), + MTK_PIN_IES_SMT_SPEC(129, 130, 0x950, 9), + MTK_PIN_IES_SMT_SPEC(131, 132, 0x950, 8), + MTK_PIN_IES_SMT_SPEC(133, 134, 0x910, 8) }; -static int spec_ies_smt_set(struct regmap *regmap, unsigned int pin, - unsigned char align, int value) -{ - unsigned int i, reg_addr, bit; - bool find = false; - - for (i = 0; i < ARRAY_SIZE(mt8173_ies_smt_set); i++) { - if (pin >= mt8173_ies_smt_set[i].start && - pin <= mt8173_ies_smt_set[i].end) { - find = true; - break; - } - } - - if (!find) - return -EINVAL; - - if (value) - reg_addr = mt8173_ies_smt_set[i].offset + align; - else - reg_addr = mt8173_ies_smt_set[i].offset + (align << 1); +static const struct mtk_pin_ies_smt_set mt8173_ies_set[] = { + MTK_PIN_IES_SMT_SPEC(0, 4, 0x900, 1), + MTK_PIN_IES_SMT_SPEC(5, 9, 0x900, 2), + MTK_PIN_IES_SMT_SPEC(10, 13, 0x900, 10), + MTK_PIN_IES_SMT_SPEC(14, 15, 0x910, 10), + MTK_PIN_IES_SMT_SPEC(16, 16, 0x900, 0), + MTK_PIN_IES_SMT_SPEC(17, 17, 0x920, 2), + MTK_PIN_IES_SMT_SPEC(18, 21, 0x910, 3), + MTK_PIN_IES_SMT_SPEC(29, 32, 0x900, 3), + MTK_PIN_IES_SMT_SPEC(33, 33, 0x900, 4), + MTK_PIN_IES_SMT_SPEC(34, 36, 0x900, 5), + MTK_PIN_IES_SMT_SPEC(37, 38, 0x900, 6), + MTK_PIN_IES_SMT_SPEC(39, 39, 0x900, 7), + MTK_PIN_IES_SMT_SPEC(40, 41, 0x900, 9), + MTK_PIN_IES_SMT_SPEC(42, 42, 0x910, 0), + MTK_PIN_IES_SMT_SPEC(43, 44, 0x900, 11), + MTK_PIN_IES_SMT_SPEC(45, 46, 0x900, 12), + MTK_PIN_IES_SMT_SPEC(57, 64, 0xc20, 14), + MTK_PIN_IES_SMT_SPEC(65, 65, 0xc10, 14), + MTK_PIN_IES_SMT_SPEC(66, 66, 0xc00, 14), + MTK_PIN_IES_SMT_SPEC(67, 67, 0xd10, 14), + MTK_PIN_IES_SMT_SPEC(68, 68, 0xd00, 14), + MTK_PIN_IES_SMT_SPEC(69, 72, 0x910, 14), + MTK_PIN_IES_SMT_SPEC(73, 76, 0xc60, 14), + MTK_PIN_IES_SMT_SPEC(77, 77, 0xc40, 14), + MTK_PIN_IES_SMT_SPEC(78, 78, 0xc50, 14), + MTK_PIN_IES_SMT_SPEC(79, 82, 0x910, 15), + MTK_PIN_IES_SMT_SPEC(83, 83, 0x920, 0), + MTK_PIN_IES_SMT_SPEC(84, 85, 0x920, 1), + MTK_PIN_IES_SMT_SPEC(86, 91, 0x920, 2), + MTK_PIN_IES_SMT_SPEC(92, 92, 0x900, 13), + MTK_PIN_IES_SMT_SPEC(93, 95, 0x900, 14), + MTK_PIN_IES_SMT_SPEC(96, 99, 0x900, 15), + MTK_PIN_IES_SMT_SPEC(100, 103, 0xca0, 14), + MTK_PIN_IES_SMT_SPEC(104, 104, 0xc80, 14), + MTK_PIN_IES_SMT_SPEC(105, 105, 0xc90, 14), + MTK_PIN_IES_SMT_SPEC(106, 107, 0x91, 4), + MTK_PIN_IES_SMT_SPEC(108, 112, 0x910, 1), + MTK_PIN_IES_SMT_SPEC(113, 116, 0x910, 2), + MTK_PIN_IES_SMT_SPEC(117, 118, 0x910, 5), + MTK_PIN_IES_SMT_SPEC(119, 124, 0x910, 6), + MTK_PIN_IES_SMT_SPEC(125, 126, 0x910, 7), + MTK_PIN_IES_SMT_SPEC(127, 127, 0x910, 0), + MTK_PIN_IES_SMT_SPEC(128, 128, 0x920, 8), + MTK_PIN_IES_SMT_SPEC(129, 130, 0x920, 9), + MTK_PIN_IES_SMT_SPEC(131, 132, 0x920, 8), + MTK_PIN_IES_SMT_SPEC(133, 134, 0x910, 8) +}; - bit = BIT(mt8173_ies_smt_set[i].bit); - regmap_write(regmap, reg_addr, bit); - return 0; +static int mt8173_ies_smt_set(struct regmap *regmap, unsigned int pin, + unsigned char align, int value, enum pin_config_param arg) +{ + if (arg == PIN_CONFIG_INPUT_ENABLE) + return mtk_pconf_spec_set_ies_smt_range(regmap, mt8173_ies_set, + ARRAY_SIZE(mt8173_ies_set), pin, align, value); + else if (arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE) + return mtk_pconf_spec_set_ies_smt_range(regmap, mt8173_smt_set, + ARRAY_SIZE(mt8173_smt_set), pin, align, value); + return -EINVAL; } static const struct mtk_drv_group_desc mt8173_drv_grp[] = { @@ -307,7 +320,7 @@ static const struct mtk_pinctrl_devdata mt8173_pinctrl_data = { .pin_drv_grp = mt8173_pin_drv, .n_pin_drv_grps = ARRAY_SIZE(mt8173_pin_drv), .spec_pull_set = mt8173_spec_pull_set, - .spec_ies_smt_set = spec_ies_smt_set, + .spec_ies_smt_set = mt8173_ies_smt_set, .dir_offset = 0x0000, .pullen_offset = 0x0100, .pullsel_offset = 0x0200, diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c index 0aee6bc4a484..36f89207d277 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.c +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.c @@ -107,28 +107,38 @@ static void mtk_gpio_set(struct gpio_chip *chip, unsigned offset, int value) regmap_write(mtk_get_regmap(pctl, offset), reg_addr, bit); } -static void mtk_pconf_set_ies_smt(struct mtk_pinctrl *pctl, unsigned pin, - int value, enum pin_config_param param) +static int mtk_pconf_set_ies_smt(struct mtk_pinctrl *pctl, unsigned pin, + int value, enum pin_config_param arg) { unsigned int reg_addr, offset; unsigned int bit; - int ret; + + /** + * Due to some soc are not support ies/smt config, add this special + * control to handle it. + */ + if (!pctl->devdata->spec_ies_smt_set && + pctl->devdata->ies_offset == MTK_PINCTRL_NOT_SUPPORT && + arg == PIN_CONFIG_INPUT_ENABLE) + return -EINVAL; + + if (!pctl->devdata->spec_ies_smt_set && + pctl->devdata->smt_offset == MTK_PINCTRL_NOT_SUPPORT && + arg == PIN_CONFIG_INPUT_SCHMITT_ENABLE) + return -EINVAL; /* * Due to some pins are irregular, their input enable and smt - * control register are discontinuous, but they are mapping together. - * So we need this special handle. + * control register are discontinuous, so we need this special handle. */ if (pctl->devdata->spec_ies_smt_set) { - ret = pctl->devdata->spec_ies_smt_set(mtk_get_regmap(pctl, pin), - pin, pctl->devdata->port_align, value); - if (!ret) - return; + return pctl->devdata->spec_ies_smt_set(mtk_get_regmap(pctl, pin), + pin, pctl->devdata->port_align, value, arg); } bit = BIT(pin & 0xf); - if (param == PIN_CONFIG_INPUT_ENABLE) + if (arg == PIN_CONFIG_INPUT_ENABLE) offset = pctl->devdata->ies_offset; else offset = pctl->devdata->smt_offset; @@ -139,6 +149,33 @@ static void mtk_pconf_set_ies_smt(struct mtk_pinctrl *pctl, unsigned pin, reg_addr = CLR_ADDR(mtk_get_port(pctl, pin) + offset, pctl); regmap_write(mtk_get_regmap(pctl, pin), reg_addr, bit); + return 0; +} + +int mtk_pconf_spec_set_ies_smt_range(struct regmap *regmap, + const struct mtk_pin_ies_smt_set *ies_smt_infos, unsigned int info_num, + unsigned int pin, unsigned char align, int value) +{ + unsigned int i, reg_addr, bit; + + for (i = 0; i < info_num; i++) { + if (pin >= ies_smt_infos[i].start && + pin <= ies_smt_infos[i].end) { + break; + } + } + + if (i == info_num) + return -EINVAL; + + if (value) + reg_addr = ies_smt_infos[i].offset + align; + else + reg_addr = ies_smt_infos[i].offset + (align << 1); + + bit = BIT(ies_smt_infos[i].bit); + regmap_write(regmap, reg_addr, bit); + return 0; } static const struct mtk_pin_drv_grp *mtk_find_pin_drv_grp_by_pin( @@ -295,36 +332,37 @@ static int mtk_pconf_parse_conf(struct pinctrl_dev *pctldev, unsigned int pin, enum pin_config_param param, enum pin_config_param arg) { + int ret = 0; struct mtk_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); switch (param) { case PIN_CONFIG_BIAS_DISABLE: - mtk_pconf_set_pull_select(pctl, pin, false, false, arg); + ret = mtk_pconf_set_pull_select(pctl, pin, false, false, arg); break; case PIN_CONFIG_BIAS_PULL_UP: - mtk_pconf_set_pull_select(pctl, pin, true, true, arg); + ret = mtk_pconf_set_pull_select(pctl, pin, true, true, arg); break; case PIN_CONFIG_BIAS_PULL_DOWN: - mtk_pconf_set_pull_select(pctl, pin, true, false, arg); + ret = mtk_pconf_set_pull_select(pctl, pin, true, false, arg); break; case PIN_CONFIG_INPUT_ENABLE: - mtk_pconf_set_ies_smt(pctl, pin, arg, param); + ret = mtk_pconf_set_ies_smt(pctl, pin, arg, param); break; case PIN_CONFIG_OUTPUT: mtk_gpio_set(pctl->chip, pin, arg); - mtk_pmx_gpio_set_direction(pctldev, NULL, pin, false); + ret = mtk_pmx_gpio_set_direction(pctldev, NULL, pin, false); break; case PIN_CONFIG_INPUT_SCHMITT_ENABLE: - mtk_pconf_set_ies_smt(pctl, pin, arg, param); + ret = mtk_pconf_set_ies_smt(pctl, pin, arg, param); break; case PIN_CONFIG_DRIVE_STRENGTH: - mtk_pconf_set_driving(pctl, pin, arg); + ret = mtk_pconf_set_driving(pctl, pin, arg); break; default: - return -EINVAL; + ret = -EINVAL; } - return 0; + return ret; } static int mtk_pconf_group_get(struct pinctrl_dev *pctldev, @@ -343,12 +381,14 @@ static int mtk_pconf_group_set(struct pinctrl_dev *pctldev, unsigned group, { struct mtk_pinctrl *pctl = pinctrl_dev_get_drvdata(pctldev); struct mtk_pinctrl_group *g = &pctl->groups[group]; - int i; + int i, ret; for (i = 0; i < num_configs; i++) { - mtk_pconf_parse_conf(pctldev, g->pin, + ret = mtk_pconf_parse_conf(pctldev, g->pin, pinconf_to_config_param(configs[i]), pinconf_to_config_argument(configs[i])); + if (ret < 0) + return ret; g->config = configs[i]; } diff --git a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h index 2a4b7bee4564..c703e7d09025 100644 --- a/drivers/pinctrl/mediatek/pinctrl-mtk-common.h +++ b/drivers/pinctrl/mediatek/pinctrl-mtk-common.h @@ -17,6 +17,7 @@ #include #include +#include #define NO_EINT_SUPPORT 255 #define MT_EDGE_SENSITIVE 0 @@ -25,6 +26,8 @@ #define EINT_DBNC_RST_BIT (0x1 << 1) #define EINT_DBNC_SET_EN (0x1 << 0) +#define MTK_PINCTRL_NOT_SUPPORT (0xffff) + struct mtk_desc_function { const char *name; unsigned char muxval; @@ -143,6 +146,28 @@ struct mtk_pin_spec_pupd_set_samereg { .r0_bit = _r0, \ } +/** + * struct mtk_pin_ies_set - For special pins' ies and smt setting. + * @start: The start pin number of those special pins. + * @end: The end pin number of those special pins. + * @offset: The offset of special setting register. + * @bit: The bit of special setting register. + */ +struct mtk_pin_ies_smt_set { + unsigned short start; + unsigned short end; + unsigned short offset; + unsigned char bit; +}; + +#define MTK_PIN_IES_SMT_SPEC(_start, _end, _offset, _bit) \ + { \ + .start = _start, \ + .end = _end, \ + .bit = _bit, \ + .offset = _offset, \ + } + struct mtk_eint_offsets { const char *name; unsigned int stat; @@ -208,7 +233,7 @@ struct mtk_pinctrl_devdata { int (*spec_pull_set)(struct regmap *reg, unsigned int pin, unsigned char align, bool isup, unsigned int arg); int (*spec_ies_smt_set)(struct regmap *reg, unsigned int pin, - unsigned char align, int value); + unsigned char align, int value, enum pin_config_param arg); unsigned int dir_offset; unsigned int ies_offset; unsigned int smt_offset; @@ -251,4 +276,8 @@ int mtk_pctrl_spec_pull_set_samereg(struct regmap *regmap, unsigned int info_num, unsigned int pin, unsigned char align, bool isup, unsigned int r1r0); +int mtk_pconf_spec_set_ies_smt_range(struct regmap *regmap, + const struct mtk_pin_ies_smt_set *ies_smt_infos, unsigned int info_num, + unsigned int pin, unsigned char align, int value); + #endif /* __PINCTRL_MTK_COMMON_H */ -- 2.30.2