37 static inline int m41t93_set_reg(struct spi_device *spi, u8 addr, u8 data)  in m41t93_set_reg()  argument
45 	return spi_write(spi, buf, sizeof(buf));  in m41t93_set_reg()
50 	struct spi_device *spi = to_spi_device(dev);  in m41t93_set_time()  local
62 		dev_warn(&spi->dev, "unsupported date (before 2000-01-01).\n");  in m41t93_set_time()
66 	tmp = spi_w8r8(spi, M41T93_REG_FLAGS);  in m41t93_set_time()
71 		dev_warn(&spi->dev, "OF bit is set, resetting.\n");  in m41t93_set_time()
72 		m41t93_set_reg(spi, M41T93_REG_FLAGS, tmp & ~M41T93_FLAG_OF);  in m41t93_set_time()
74 		tmp = spi_w8r8(spi, M41T93_REG_FLAGS);  in m41t93_set_time()
82 			dev_warn(&spi->dev,  in m41t93_set_time()
84 			m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);  in m41t93_set_time()
86 			m41t93_set_reg(spi, M41T93_REG_ST_SEC, reset_osc);  in m41t93_set_time()
100 	return spi_write(spi, buf, sizeof(buf));  in m41t93_set_time()
106 	struct spi_device *spi = to_spi_device(dev);  in m41t93_get_time()  local
119 	tmp = spi_w8r8(spi, M41T93_REG_ALM_HOUR_HT);  in m41t93_get_time()
124 		dev_dbg(&spi->dev, "HT bit is set, reenable clock update.\n");  in m41t93_get_time()
125 		m41t93_set_reg(spi, M41T93_REG_ALM_HOUR_HT,  in m41t93_get_time()
129 	tmp = spi_w8r8(spi, M41T93_REG_FLAGS);  in m41t93_get_time()
135 		dev_warn(&spi->dev, "OF bit is set, write time to restart.\n");  in m41t93_get_time()
139 		dev_warn(&spi->dev, "BL bit is set, replace battery.\n");  in m41t93_get_time()
142 	tmp = spi_write_then_read(spi, &start_addr, 1, buf, sizeof(buf));  in m41t93_get_time()
173 static int m41t93_probe(struct spi_device *spi)  in m41t93_probe()  argument
178 	spi->bits_per_word = 8;  in m41t93_probe()
179 	spi_setup(spi);  in m41t93_probe()
181 	res = spi_w8r8(spi, M41T93_REG_WDAY);  in m41t93_probe()
183 		dev_err(&spi->dev, "not found 0x%x.\n", res);  in m41t93_probe()
187 	rtc = devm_rtc_device_register(&spi->dev, m41t93_driver.driver.name,  in m41t93_probe()
192 	spi_set_drvdata(spi, rtc);  in m41t93_probe()