Marek VasutandTom Rini
d504639843
Set the acpi_ops structure as static const where applicable. The The structure is not accessible from outside of drivers and is not going to be modified at runtime. The structure may be unused in a couple of drivers depending on their configuration, mark those sites with __maybe_unused . Signed-off-by: Marek Vasut <marek.vasut+renesas@mailbox.org> Reviewed-by: Simon Glass <sjg@chromium.org>
114 lines
2.5 KiB
C
114 lines
2.5 KiB
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2015 Google, Inc
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* Written by Simon Glass <sjg@chromium.org>
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*/
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#include <dm.h>
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#include <i2c.h>
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#include <rtc.h>
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#include <asm/rtc.h>
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#include <dm/acpi.h>
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#define REG_COUNT 0x80
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static int sandbox_rtc_get(struct udevice *dev, struct rtc_time *time)
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{
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u8 buf[7];
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int ret;
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ret = dm_i2c_read(dev, REG_SEC, buf, sizeof(buf));
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if (ret < 0)
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return ret;
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time->tm_sec = buf[REG_SEC - REG_SEC];
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time->tm_min = buf[REG_MIN - REG_SEC];
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time->tm_hour = buf[REG_HOUR - REG_SEC];
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time->tm_mday = buf[REG_MDAY - REG_SEC];
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time->tm_mon = buf[REG_MON - REG_SEC];
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time->tm_year = buf[REG_YEAR - REG_SEC] + 1900;
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time->tm_wday = buf[REG_WDAY - REG_SEC];
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return 0;
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}
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static int sandbox_rtc_set(struct udevice *dev, const struct rtc_time *time)
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{
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u8 buf[7];
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int ret;
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buf[REG_SEC - REG_SEC] = time->tm_sec;
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buf[REG_MIN - REG_SEC] = time->tm_min;
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buf[REG_HOUR - REG_SEC] = time->tm_hour;
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buf[REG_MDAY - REG_SEC] = time->tm_mday;
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buf[REG_MON - REG_SEC] = time->tm_mon;
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buf[REG_YEAR - REG_SEC] = time->tm_year - 1900;
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buf[REG_WDAY - REG_SEC] = time->tm_wday;
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ret = dm_i2c_write(dev, REG_SEC, buf, sizeof(buf));
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if (ret < 0)
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return ret;
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return 0;
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}
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static int sandbox_rtc_reset(struct udevice *dev)
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{
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return dm_i2c_reg_write(dev, REG_RESET, 0);
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}
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static int sandbox_rtc_read8(struct udevice *dev, unsigned int reg)
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{
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return dm_i2c_reg_read(dev, reg);
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}
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static int sandbox_rtc_write8(struct udevice *dev, unsigned int reg, int val)
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{
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return dm_i2c_reg_write(dev, reg, val);
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}
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#if CONFIG_IS_ENABLED(ACPIGEN)
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static int sandbox_rtc_get_name(const struct udevice *dev, char *out_name)
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{
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return acpi_copy_name(out_name, "RTCC");
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}
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static const struct acpi_ops sandbox_rtc_acpi_ops = {
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.get_name = sandbox_rtc_get_name,
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};
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#endif
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static int sandbox_rtc_bind(struct udevice *dev)
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{
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#if CONFIG_IS_ENABLED(PLATDATA)
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struct sandbox_i2c_rtc_plat_data *plat = dev_get_plat(dev);
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/* Set up the emul_idx for i2c_emul_find() */
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i2c_emul_set_idx(dev, plat->dtplat.sandbox_emul->idx);
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#endif
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return 0;
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}
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static const struct rtc_ops sandbox_rtc_ops = {
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.get = sandbox_rtc_get,
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.set = sandbox_rtc_set,
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.reset = sandbox_rtc_reset,
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.read8 = sandbox_rtc_read8,
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.write8 = sandbox_rtc_write8,
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};
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static const struct udevice_id sandbox_rtc_ids[] = {
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{ .compatible = "sandbox-rtc" },
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{ }
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};
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U_BOOT_DRIVER(sandbox_rtc) = {
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.name = "sandbox_rtc",
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.id = UCLASS_RTC,
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.of_match = sandbox_rtc_ids,
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.ops = &sandbox_rtc_ops,
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.bind = sandbox_rtc_bind,
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ACPI_OPS_PTR(&sandbox_rtc_acpi_ops)
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};
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