43 static void slic_write(struct spi_device *spi, u16 addr,  in slic_write()  argument
55 	spi_write(spi, &temp[0], SLIC_THREE_LEN);  in slic_write()
58 static u8 slic_read(struct spi_device *spi, u16 addr)  in slic_read()  argument
67 	spi_write_then_read(spi, &temp[0], SLIC_TWO_LEN, &data,  in slic_read()
74 static bool get_slic_product_code(struct spi_device *spi)  in get_slic_product_code()  argument
78 	device_id = slic_read(spi, DS26522_IDR_ADDR);  in get_slic_product_code()
85 static void ds26522_e1_spec_config(struct spi_device *spi)  in ds26522_e1_spec_config()  argument
88 	slic_write(spi, DS26522_RMMR_ADDR, DS26522_RMMR_E1);  in ds26522_e1_spec_config()
91 	slic_write(spi, DS26522_TMMR_ADDR, DS26522_TMMR_E1);  in ds26522_e1_spec_config()
94 	slic_write(spi, DS26522_RMMR_ADDR,  in ds26522_e1_spec_config()
95 		   slic_read(spi, DS26522_RMMR_ADDR) | DS26522_RMMR_FRM_EN);  in ds26522_e1_spec_config()
98 	slic_write(spi, DS26522_TMMR_ADDR,  in ds26522_e1_spec_config()
99 		   slic_read(spi, DS26522_TMMR_ADDR) | DS26522_TMMR_FRM_EN);  in ds26522_e1_spec_config()
102 	slic_write(spi, DS26522_RCR1_ADDR,  in ds26522_e1_spec_config()
106 	slic_write(spi, DS26522_RIOCR_ADDR,  in ds26522_e1_spec_config()
110 	slic_write(spi, DS26522_TCR1_ADDR, DS26522_TCR1_TB8ZS);  in ds26522_e1_spec_config()
113 	slic_write(spi, DS26522_TIOCR_ADDR,  in ds26522_e1_spec_config()
117 	slic_write(spi, DS26522_E1TAF_ADDR, DS26522_E1TAF_DEFAULT);  in ds26522_e1_spec_config()
120 	slic_write(spi, DS26522_E1TNAF_ADDR, DS26522_E1TNAF_DEFAULT);  in ds26522_e1_spec_config()
123 	slic_write(spi, DS26522_RMMR_ADDR, slic_read(spi, DS26522_RMMR_ADDR) |  in ds26522_e1_spec_config()
127 	slic_write(spi, DS26522_TMMR_ADDR, slic_read(spi, DS26522_TMMR_ADDR) |  in ds26522_e1_spec_config()
131 	slic_write(spi, DS26522_LTRCR_ADDR, DS26522_LTRCR_E1);  in ds26522_e1_spec_config()
134 	slic_write(spi, DS26522_LTITSR_ADDR,  in ds26522_e1_spec_config()
138 	slic_write(spi, DS26522_LRISMR_ADDR,  in ds26522_e1_spec_config()
142 	slic_write(spi, DS26522_LMCR_ADDR, DS26522_LMCR_TE);  in ds26522_e1_spec_config()
145 static int slic_ds26522_init_configure(struct spi_device *spi)  in slic_ds26522_init_configure()  argument
150 	slic_write(spi, DS26522_GTCCR_ADDR, DS26522_GTCCR_BPREFSEL_REFCLKIN |  in slic_ds26522_init_configure()
153 	slic_write(spi, DS26522_GTCR2_ADDR, DS26522_GTCR2_TSSYNCOUT);  in slic_ds26522_init_configure()
154 	slic_write(spi, DS26522_GFCR_ADDR, DS26522_GFCR_BPCLK_2048KHZ);  in slic_ds26522_init_configure()
157 	slic_write(spi, DS26522_GTCR1_ADDR, DS26522_GTCR1);  in slic_ds26522_init_configure()
160 	slic_write(spi, DS26522_GLSRR_ADDR, DS26522_GLSRR_RESET);  in slic_ds26522_init_configure()
163 	slic_write(spi, DS26522_GFSRR_ADDR, DS26522_GFSRR_RESET);  in slic_ds26522_init_configure()
167 	slic_write(spi, DS26522_GLSRR_ADDR, DS26522_GLSRR_NORMAL);  in slic_ds26522_init_configure()
168 	slic_write(spi, DS26522_GFSRR_ADDR, DS26522_GFSRR_NORMAL);  in slic_ds26522_init_configure()
171 	slic_write(spi, DS26522_RMMR_ADDR, DS26522_RMMR_SFTRST);  in slic_ds26522_init_configure()
174 	slic_write(spi, DS26522_TMMR_ADDR, DS26522_TMMR_SFTRST);  in slic_ds26522_init_configure()
181 		slic_write(spi, addr, 0);  in slic_ds26522_init_configure()
185 		slic_write(spi, addr, 0);  in slic_ds26522_init_configure()
189 		slic_write(spi, addr, 0);  in slic_ds26522_init_configure()
193 		slic_write(spi, addr, 0);  in slic_ds26522_init_configure()
196 	ds26522_e1_spec_config(spi);  in slic_ds26522_init_configure()
198 	slic_write(spi, DS26522_GTCR1_ADDR, 0x00);  in slic_ds26522_init_configure()
203 static int slic_ds26522_remove(struct spi_device *spi)  in slic_ds26522_remove()  argument
209 static int slic_ds26522_probe(struct spi_device *spi)  in slic_ds26522_probe()  argument
213 	g_spi = spi;  in slic_ds26522_probe()
214 	spi->bits_per_word = 8;  in slic_ds26522_probe()
216 	if (!get_slic_product_code(spi))  in slic_ds26522_probe()
219 	ret = slic_ds26522_init_configure(spi);  in slic_ds26522_probe()
221 		pr_info("DS26522 cs%d configured\n", spi->chip_select);  in slic_ds26522_probe()
230 MODULE_DEVICE_TABLE(spi, slic_ds26522_id);