drivers/memory/of_memory.c

19  * of_get_min_tck() - extract min timing values for ddr
21  * @dev: device requesting for min timing values
26  * default min timings provided by JEDEC.
32 	struct lpddr2_min_tck	*min;
34 	min = devm_kzalloc(dev, sizeof(*min), GFP_KERNEL);
35 	if (!min)
38 	ret |= of_property_read_u32(np, "tRPab-min-tck", &min->tRPab);
39 	ret |= of_property_read_u32(np, "tRCD-min-tck", &min->tRCD);
40 	ret |= of_property_read_u32(np, "tWR-min-tck", &min->tWR);
41 	ret |= of_property_read_u32(np, "tRASmin-min-tck", &min->tRASmin);
42 	ret |= of_property_read_u32(np, "tRRD-min-tck", &min->tRRD);
43 	ret |= of_property_read_u32(np, "tWTR-min-tck", &min->tWTR);
44 	ret |= of_property_read_u32(np, "tXP-min-tck", &min->tXP);
45 	ret |= of_property_read_u32(np, "tRTP-min-tck", &min->tRTP);
46 	ret |= of_property_read_u32(np, "tCKE-min-tck", &min->tCKE);
47 	ret |= of_property_read_u32(np, "tCKESR-min-tck", &min->tCKESR);
48 	ret |= of_property_read_u32(np, "tFAW-min-tck", &min->tFAW);
51 		devm_kfree(dev, min);
55 	return min;
58 	dev_warn(dev, "Using default min-tck values\n");
69 	ret |= of_property_read_u32(np, "min-freq", &tim->min_freq);
73 	ret |= of_property_read_u32(np, "tRAS-min", &tim->tRAS_min);
157  * of_lpddr3_get_min_tck() - extract min timing values for lpddr3
159  * @dev: device requesting for min timing values
169 	struct lpddr3_min_tck	*min;
171 	min = devm_kzalloc(dev, sizeof(*min), GFP_KERNEL);
172 	if (!min)
175 	ret |= of_property_read_u32(np, "tRFC-min-tck", &min->tRFC);
176 	ret |= of_property_read_u32(np, "tRRD-min-tck", &min->tRRD);
177 	ret |= of_property_read_u32(np, "tRPab-min-tck", &min->tRPab);
178 	ret |= of_property_read_u32(np, "tRPpb-min-tck", &min->tRPpb);
179 	ret |= of_property_read_u32(np, "tRCD-min-tck", &min->tRCD);
180 	ret |= of_property_read_u32(np, "tRC-min-tck", &min->tRC);
181 	ret |= of_property_read_u32(np, "tRAS-min-tck", &min->tRAS);
182 	ret |= of_property_read_u32(np, "tWTR-min-tck", &min->tWTR);
183 	ret |= of_property_read_u32(np, "tWR-min-tck", &min->tWR);
184 	ret |= of_property_read_u32(np, "tRTP-min-tck", &min->tRTP);
185 	ret |= of_property_read_u32(np, "tW2W-C2C-min-tck", &min->tW2W_C2C);
186 	ret |= of_property_read_u32(np, "tR2R-C2C-min-tck", &min->tR2R_C2C);
187 	ret |= of_property_read_u32(np, "tWL-min-tck", &min->tWL);
188 	ret |= of_property_read_u32(np, "tDQSCK-min-tck", &min->tDQSCK);
189 	ret |= of_property_read_u32(np, "tRL-min-tck", &min->tRL);
190 	ret |= of_property_read_u32(np, "tFAW-min-tck", &min->tFAW);
191 	ret |= of_property_read_u32(np, "tXSR-min-tck", &min->tXSR);
192 	ret |= of_property_read_u32(np, "tXP-min-tck", &min->tXP);
193 	ret |= of_property_read_u32(np, "tCKE-min-tck", &min->tCKE);
194 	ret |= of_property_read_u32(np, "tCKESR-min-tck", &min->tCKESR);
195 	ret |= of_property_read_u32(np, "tMRD-min-tck", &min->tMRD);
198 		dev_warn(dev, "Errors while parsing min-tck values\n");
199 		devm_kfree(dev, min);
203 	return min;
206 	dev_warn(dev, "Using default min-tck values\n");
220 	ret |= of_property_read_u32(np, "min-freq", &tim->min_freq);