Lines Matching refs:ddata
63 struct pwm_sifive_ddata *ddata = pwm_sifive_chip_to_ddata(chip); in pwm_sifive_request() local
65 mutex_lock(&ddata->lock); in pwm_sifive_request()
66 ddata->user_count++; in pwm_sifive_request()
67 mutex_unlock(&ddata->lock); in pwm_sifive_request()
74 struct pwm_sifive_ddata *ddata = pwm_sifive_chip_to_ddata(chip); in pwm_sifive_free() local
76 mutex_lock(&ddata->lock); in pwm_sifive_free()
77 ddata->user_count--; in pwm_sifive_free()
78 mutex_unlock(&ddata->lock); in pwm_sifive_free()
81 static void pwm_sifive_update_clock(struct pwm_sifive_ddata *ddata, in pwm_sifive_update_clock() argument
95 scale_pow = div64_ul(ddata->approx_period * (u64)rate, NSEC_PER_SEC); in pwm_sifive_update_clock()
100 writel(val, ddata->regs + PWM_SIFIVE_PWMCFG); in pwm_sifive_update_clock()
104 ddata->real_period = div64_ul(num, rate); in pwm_sifive_update_clock()
105 dev_dbg(ddata->chip.dev, in pwm_sifive_update_clock()
106 "New real_period = %u ns\n", ddata->real_period); in pwm_sifive_update_clock()
112 struct pwm_sifive_ddata *ddata = pwm_sifive_chip_to_ddata(chip); in pwm_sifive_get_state() local
115 duty = readl(ddata->regs + PWM_SIFIVE_PWMCMP0 + in pwm_sifive_get_state()
120 val = readl(ddata->regs + PWM_SIFIVE_PWMCFG); in pwm_sifive_get_state()
124 state->period = ddata->real_period; in pwm_sifive_get_state()
126 (u64)duty * ddata->real_period >> PWM_SIFIVE_CMPWIDTH; in pwm_sifive_get_state()
132 struct pwm_sifive_ddata *ddata = pwm_sifive_chip_to_ddata(chip); in pwm_sifive_enable() local
136 ret = clk_enable(ddata->clk); in pwm_sifive_enable()
138 dev_err(ddata->chip.dev, "Enable clk failed\n"); in pwm_sifive_enable()
144 clk_disable(ddata->clk); in pwm_sifive_enable()
152 struct pwm_sifive_ddata *ddata = pwm_sifive_chip_to_ddata(chip); in pwm_sifive_apply() local
163 ret = clk_enable(ddata->clk); in pwm_sifive_apply()
165 dev_err(ddata->chip.dev, "Enable clk failed\n"); in pwm_sifive_apply()
169 mutex_lock(&ddata->lock); in pwm_sifive_apply()
188 if (state->period != ddata->approx_period) { in pwm_sifive_apply()
189 if (ddata->user_count != 1) { in pwm_sifive_apply()
193 ddata->approx_period = state->period; in pwm_sifive_apply()
194 pwm_sifive_update_clock(ddata, clk_get_rate(ddata->clk)); in pwm_sifive_apply()
197 writel(frac, ddata->regs + PWM_SIFIVE_PWMCMP0 + in pwm_sifive_apply()
204 clk_disable(ddata->clk); in pwm_sifive_apply()
205 mutex_unlock(&ddata->lock); in pwm_sifive_apply()
221 struct pwm_sifive_ddata *ddata = in pwm_sifive_clock_notifier() local
225 pwm_sifive_update_clock(ddata, ndata->new_rate); in pwm_sifive_clock_notifier()
233 struct pwm_sifive_ddata *ddata; in pwm_sifive_probe() local
237 ddata = devm_kzalloc(dev, sizeof(*ddata), GFP_KERNEL); in pwm_sifive_probe()
238 if (!ddata) in pwm_sifive_probe()
241 mutex_init(&ddata->lock); in pwm_sifive_probe()
242 chip = &ddata->chip; in pwm_sifive_probe()
247 ddata->regs = devm_platform_ioremap_resource(pdev, 0); in pwm_sifive_probe()
248 if (IS_ERR(ddata->regs)) in pwm_sifive_probe()
249 return PTR_ERR(ddata->regs); in pwm_sifive_probe()
251 ddata->clk = devm_clk_get(dev, NULL); in pwm_sifive_probe()
252 if (IS_ERR(ddata->clk)) in pwm_sifive_probe()
253 return dev_err_probe(dev, PTR_ERR(ddata->clk), in pwm_sifive_probe()
256 ret = clk_prepare_enable(ddata->clk); in pwm_sifive_probe()
263 ddata->notifier.notifier_call = pwm_sifive_clock_notifier; in pwm_sifive_probe()
264 ret = clk_notifier_register(ddata->clk, &ddata->notifier); in pwm_sifive_probe()
276 platform_set_drvdata(pdev, ddata); in pwm_sifive_probe()
282 clk_notifier_unregister(ddata->clk, &ddata->notifier); in pwm_sifive_probe()
284 clk_disable_unprepare(ddata->clk); in pwm_sifive_probe()
291 struct pwm_sifive_ddata *ddata = platform_get_drvdata(dev); in pwm_sifive_remove() local
296 for (ch = 0; ch < ddata->chip.npwm; ch++) { in pwm_sifive_remove()
297 pwm = &ddata->chip.pwms[ch]; in pwm_sifive_remove()
304 clk_disable(ddata->clk); in pwm_sifive_remove()
306 clk_disable_unprepare(ddata->clk); in pwm_sifive_remove()
307 pwmchip_remove(&ddata->chip); in pwm_sifive_remove()
308 clk_notifier_unregister(ddata->clk, &ddata->notifier); in pwm_sifive_remove()