Lines Matching defs:ftm
9 #include <linux/fsl/ftm.h>
18 #define FTM_FIELD_UPDATE(ftm, offset, mask, val) \
21 ftm_read(ftm, offset, &flags); \
24 ftm_write(ftm, offset, flags); \
35 static void ftm_read(struct ftm_quaddec *ftm, uint32_t offset, uint32_t *data)
37 if (ftm->big_endian)
38 *data = ioread32be(ftm->ftm_base + offset);
40 *data = ioread32(ftm->ftm_base + offset);
43 static void ftm_write(struct ftm_quaddec *ftm, uint32_t offset, uint32_t data)
45 if (ftm->big_endian)
46 iowrite32be(data, ftm->ftm_base + offset);
48 iowrite32(data, ftm->ftm_base + offset);
52 static void ftm_clear_write_protection(struct ftm_quaddec *ftm)
57 ftm_read(ftm, FTM_FMS, &flag);
60 FTM_FIELD_UPDATE(ftm, FTM_MODE, FTM_MODE_WPDIS, 1);
63 static void ftm_set_write_protection(struct ftm_quaddec *ftm)
65 FTM_FIELD_UPDATE(ftm, FTM_FMS, FTM_FMS_WPEN, 1);
68 static void ftm_reset_counter(struct ftm_quaddec *ftm)
71 ftm_write(ftm, FTM_CNT, 0x0);
74 static void ftm_quaddec_init(struct ftm_quaddec *ftm)
76 ftm_clear_write_protection(ftm);
83 ftm_write(ftm, FTM_MODE, FTM_MODE_FTMEN);
84 ftm_write(ftm, FTM_CNTIN, 0x0000);
85 ftm_write(ftm, FTM_MOD, 0xffff);
86 ftm_write(ftm, FTM_CNT, 0x0);
88 ftm_write(ftm, FTM_SC, FTM_SC_PS_1);
91 ftm_write(ftm, FTM_QDCTRL, FTM_QDCTRL_QUADEN);
94 ftm_write(ftm, FTM_POL, 0x0);
95 ftm_write(ftm, FTM_FLTCTRL, 0x0);
96 ftm_write(ftm, FTM_SYNCONF, 0x0);
97 ftm_write(ftm, FTM_SYNC, 0xffff);
100 ftm_set_write_protection(ftm);
103 static void ftm_quaddec_disable(void *ftm)
105 struct ftm_quaddec *ftm_qua = ftm;
121 struct ftm_quaddec *ftm = counter->priv;
124 ftm_read(ftm, FTM_SC, &scflags);
135 struct ftm_quaddec *ftm = counter->priv;
137 mutex_lock(&ftm->ftm_quaddec_mutex);
139 ftm_clear_write_protection(ftm);
140 FTM_FIELD_UPDATE(ftm, FTM_SC, FTM_SC_PS_MASK, cnt_mode);
141 ftm_set_write_protection(ftm);
144 ftm_reset_counter(ftm);
146 mutex_unlock(&ftm->ftm_quaddec_mutex);
183 struct ftm_quaddec *const ftm = counter->priv;
186 ftm_read(ftm, FTM_CNT, &cntval);
197 struct ftm_quaddec *const ftm = counter->priv;
200 dev_warn(&ftm->pdev->dev, "Can only accept '0' as new counter value\n");
204 ftm_reset_counter(ftm);
277 struct ftm_quaddec *ftm;
283 ftm = devm_kzalloc(&pdev->dev, sizeof(*ftm), GFP_KERNEL);
284 if (!ftm)
287 platform_set_drvdata(pdev, ftm);
295 ftm->pdev = pdev;
296 ftm->big_endian = of_property_read_bool(node, "big-endian");
297 ftm->ftm_base = devm_ioremap(&pdev->dev, io->start, resource_size(io));
299 if (!ftm->ftm_base) {
303 ftm->counter.name = dev_name(&pdev->dev);
304 ftm->counter.parent = &pdev->dev;
305 ftm->counter.ops = &ftm_quaddec_cnt_ops;
306 ftm->counter.counts = &ftm_quaddec_counts;
307 ftm->counter.num_counts = 1;
308 ftm->counter.signals = ftm_quaddec_signals;
309 ftm->counter.num_signals = ARRAY_SIZE(ftm_quaddec_signals);
310 ftm->counter.priv = ftm;
312 mutex_init(&ftm->ftm_quaddec_mutex);
314 ftm_quaddec_init(ftm);
316 ret = devm_add_action_or_reset(&pdev->dev, ftm_quaddec_disable, ftm);
320 ret = devm_counter_register(&pdev->dev, &ftm->counter);
328 { .compatible = "fsl,ftm-quaddec" },
334 .name = "ftm-quaddec",