59 static int gdsc_check_status(struct gdsc *sc, enum gdsc_status status)  in gdsc_check_status()  argument
65 	if (sc->flags & POLL_CFG_GDSCR)  in gdsc_check_status()
66 		reg = sc->gdscr + CFG_GDSCR_OFFSET;  in gdsc_check_status()
67 	else if (sc->gds_hw_ctrl)  in gdsc_check_status()
68 		reg = sc->gds_hw_ctrl;  in gdsc_check_status()
70 		reg = sc->gdscr;  in gdsc_check_status()
72 	ret = regmap_read(sc->regmap, reg, &val);  in gdsc_check_status()
76 	if (sc->flags & POLL_CFG_GDSCR) {  in gdsc_check_status()
95 static int gdsc_hwctrl(struct gdsc *sc, bool en)  in gdsc_hwctrl()  argument
99 	return regmap_update_bits(sc->regmap, sc->gdscr, HW_CONTROL_MASK, val);  in gdsc_hwctrl()
102 static int gdsc_poll_status(struct gdsc *sc, enum gdsc_status status)  in gdsc_poll_status()  argument
108 		if (gdsc_check_status(sc, status))  in gdsc_poll_status()
112 	if (gdsc_check_status(sc, status))  in gdsc_poll_status()
118 static int gdsc_toggle_logic(struct gdsc *sc, enum gdsc_status status)  in gdsc_toggle_logic()  argument
123 	if (status == GDSC_ON && sc->rsupply) {  in gdsc_toggle_logic()
124 		ret = regulator_enable(sc->rsupply);  in gdsc_toggle_logic()
129 	ret = regmap_update_bits(sc->regmap, sc->gdscr, SW_COLLAPSE_MASK, val);  in gdsc_toggle_logic()
134 	if ((sc->flags & VOTABLE) && status == GDSC_OFF) {  in gdsc_toggle_logic()
144 	if (sc->gds_hw_ctrl) {  in gdsc_toggle_logic()
158 	ret = gdsc_poll_status(sc, status);  in gdsc_toggle_logic()
159 	WARN(ret, "%s status stuck at 'o%s'", sc->pd.name, status ? "ff" : "n");  in gdsc_toggle_logic()
161 	if (!ret && status == GDSC_OFF && sc->rsupply) {  in gdsc_toggle_logic()
162 		ret = regulator_disable(sc->rsupply);  in gdsc_toggle_logic()
170 static inline int gdsc_deassert_reset(struct gdsc *sc)  in gdsc_deassert_reset()  argument
174 	for (i = 0; i < sc->reset_count; i++)  in gdsc_deassert_reset()
175 		sc->rcdev->ops->deassert(sc->rcdev, sc->resets[i]);  in gdsc_deassert_reset()
179 static inline int gdsc_assert_reset(struct gdsc *sc)  in gdsc_assert_reset()  argument
183 	for (i = 0; i < sc->reset_count; i++)  in gdsc_assert_reset()
184 		sc->rcdev->ops->assert(sc->rcdev, sc->resets[i]);  in gdsc_assert_reset()
188 static inline void gdsc_force_mem_on(struct gdsc *sc)  in gdsc_force_mem_on()  argument
193 	if (!(sc->flags & NO_RET_PERIPH))  in gdsc_force_mem_on()
196 	for (i = 0; i < sc->cxc_count; i++)  in gdsc_force_mem_on()
197 		regmap_update_bits(sc->regmap, sc->cxcs[i], mask, mask);  in gdsc_force_mem_on()
200 static inline void gdsc_clear_mem_on(struct gdsc *sc)  in gdsc_clear_mem_on()  argument
205 	if (!(sc->flags & NO_RET_PERIPH))  in gdsc_clear_mem_on()
208 	for (i = 0; i < sc->cxc_count; i++)  in gdsc_clear_mem_on()
209 		regmap_update_bits(sc->regmap, sc->cxcs[i], mask, 0);  in gdsc_clear_mem_on()
212 static inline void gdsc_deassert_clamp_io(struct gdsc *sc)  in gdsc_deassert_clamp_io()  argument
214 	regmap_update_bits(sc->regmap, sc->clamp_io_ctrl,  in gdsc_deassert_clamp_io()
218 static inline void gdsc_assert_clamp_io(struct gdsc *sc)  in gdsc_assert_clamp_io()  argument
220 	regmap_update_bits(sc->regmap, sc->clamp_io_ctrl,  in gdsc_assert_clamp_io()
224 static inline void gdsc_assert_reset_aon(struct gdsc *sc)  in gdsc_assert_reset_aon()  argument
226 	regmap_update_bits(sc->regmap, sc->clamp_io_ctrl,  in gdsc_assert_reset_aon()
229 	regmap_update_bits(sc->regmap, sc->clamp_io_ctrl,  in gdsc_assert_reset_aon()
233 static void gdsc_retain_ff_on(struct gdsc *sc)  in gdsc_retain_ff_on()  argument
237 	regmap_update_bits(sc->regmap, sc->gdscr, mask, mask);  in gdsc_retain_ff_on()
242 	struct gdsc *sc = domain_to_gdsc(domain);  in gdsc_enable()  local
245 	if (sc->pwrsts == PWRSTS_ON)  in gdsc_enable()
246 		return gdsc_deassert_reset(sc);  in gdsc_enable()
248 	if (sc->flags & SW_RESET) {  in gdsc_enable()
249 		gdsc_assert_reset(sc);  in gdsc_enable()
251 		gdsc_deassert_reset(sc);  in gdsc_enable()
254 	if (sc->flags & CLAMP_IO) {  in gdsc_enable()
255 		if (sc->flags & AON_RESET)  in gdsc_enable()
256 			gdsc_assert_reset_aon(sc);  in gdsc_enable()
257 		gdsc_deassert_clamp_io(sc);  in gdsc_enable()
260 	ret = gdsc_toggle_logic(sc, GDSC_ON);  in gdsc_enable()
264 	if (sc->pwrsts & PWRSTS_OFF)  in gdsc_enable()
265 		gdsc_force_mem_on(sc);  in gdsc_enable()
277 	if (sc->flags & HW_CTRL) {  in gdsc_enable()
278 		ret = gdsc_hwctrl(sc, true);  in gdsc_enable()
292 	if (sc->flags & RETAIN_FF_ENABLE)  in gdsc_enable()
293 		gdsc_retain_ff_on(sc);  in gdsc_enable()
300 	struct gdsc *sc = domain_to_gdsc(domain);  in gdsc_disable()  local
303 	if (sc->pwrsts == PWRSTS_ON)  in gdsc_disable()
304 		return gdsc_assert_reset(sc);  in gdsc_disable()
307 	if (sc->flags & HW_CTRL) {  in gdsc_disable()
308 		ret = gdsc_hwctrl(sc, false);  in gdsc_disable()
319 		ret = gdsc_poll_status(sc, GDSC_ON);  in gdsc_disable()
324 	if (sc->pwrsts & PWRSTS_OFF)  in gdsc_disable()
325 		gdsc_clear_mem_on(sc);  in gdsc_disable()
327 	ret = gdsc_toggle_logic(sc, GDSC_OFF);  in gdsc_disable()
331 	if (sc->flags & CLAMP_IO)  in gdsc_disable()
332 		gdsc_assert_clamp_io(sc);  in gdsc_disable()
337 static int gdsc_init(struct gdsc *sc)  in gdsc_init()  argument
350 	if (!sc->en_rest_wait_val)  in gdsc_init()
351 		sc->en_rest_wait_val = EN_REST_WAIT_VAL;  in gdsc_init()
352 	if (!sc->en_few_wait_val)  in gdsc_init()
353 		sc->en_few_wait_val = EN_FEW_WAIT_VAL;  in gdsc_init()
354 	if (!sc->clk_dis_wait_val)  in gdsc_init()
355 		sc->clk_dis_wait_val = CLK_DIS_WAIT_VAL;  in gdsc_init()
357 	val = sc->en_rest_wait_val << EN_REST_WAIT_SHIFT |  in gdsc_init()
358 		sc->en_few_wait_val << EN_FEW_WAIT_SHIFT |  in gdsc_init()
359 		sc->clk_dis_wait_val << CLK_DIS_WAIT_SHIFT;  in gdsc_init()
361 	ret = regmap_update_bits(sc->regmap, sc->gdscr, mask, val);  in gdsc_init()
366 	if (sc->pwrsts == PWRSTS_ON) {  in gdsc_init()
367 		ret = gdsc_toggle_logic(sc, GDSC_ON);  in gdsc_init()
372 	on = gdsc_check_status(sc, GDSC_ON);  in gdsc_init()
378 		if (sc->rsupply) {  in gdsc_init()
379 			ret = regulator_enable(sc->rsupply);  in gdsc_init()
388 		if (sc->flags & VOTABLE) {  in gdsc_init()
389 			ret = regmap_update_bits(sc->regmap, sc->gdscr,  in gdsc_init()
396 		if (sc->flags & HW_CTRL) {  in gdsc_init()
397 			ret = gdsc_hwctrl(sc, true);  in gdsc_init()
407 		if (sc->flags & RETAIN_FF_ENABLE)  in gdsc_init()
408 			gdsc_retain_ff_on(sc);  in gdsc_init()
409 	} else if (sc->flags & ALWAYS_ON) {  in gdsc_init()
411 		gdsc_enable(&sc->pd);  in gdsc_init()
415 	if (on || (sc->pwrsts & PWRSTS_RET))  in gdsc_init()
416 		gdsc_force_mem_on(sc);  in gdsc_init()
418 		gdsc_clear_mem_on(sc);  in gdsc_init()
420 	if (sc->flags & ALWAYS_ON)  in gdsc_init()
421 		sc->pd.flags |= GENPD_FLAG_ALWAYS_ON;  in gdsc_init()
422 	if (!sc->pd.power_off)  in gdsc_init()
423 		sc->pd.power_off = gdsc_disable;  in gdsc_init()
424 	if (!sc->pd.power_on)  in gdsc_init()
425 		sc->pd.power_on = gdsc_enable;  in gdsc_init()
426 	pm_genpd_init(&sc->pd, NULL, !on);  in gdsc_init()