e9665959ed
Now that the console system itself will clearly differentiate loglevels,
it is no longer necessary to explicitly add "ERROR: " in front of every
BIOS_ERR message to help it stand out more (and allow automated tooling
to grep for it). Removing all these extra .rodata characters should save
us a nice little amount of binary size.
This patch was created by running
find src/ -type f -exec perl -0777 -pi -e 's/printk\(\s*BIOS_ERR,\s*"ERROR: /printk\(BIOS_ERR, "/gi' '{}' ';'
and doing some cursory review/cleanup on the result. Then doing the same
thing for BIOS_WARN with
's/printk\(\s*BIOS_WARNING,\s*"WARN(ING)?: /printk\(BIOS_WARNING, "/gi'
Signed-off-by: Julius Werner <jwerner@chromium.org>
Change-Id: I3d0573acb23d2df53db6813cb1a5fc31b5357db8
Reviewed-on: https://review.coreboot.org/c/coreboot/+/61309
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: HAOUAS Elyes <ehaouas@noos.fr>
Reviewed-by: Lance Zhao
Reviewed-by: Jason Glenesk <jason.glenesk@gmail.com>
74 lines
1.7 KiB
C
74 lines
1.7 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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#include <console/console.h>
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#include <device/i2c_simple.h>
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#include <soc/mt6691.h>
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#define MT6691_MIN_VOLTAGE 300000
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#define MT6691_MAX_VOLTAGE 1300000
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#define MT6691_STEP_UV 5000
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enum {
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MT6691_SLAVE_ADDR = 0x51,
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};
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int mt6691_set_voltage(uint8_t i2c_num, unsigned int volt_uv)
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{
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uint8_t selector;
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if (volt_uv > MT6691_MAX_VOLTAGE || volt_uv < MT6691_MIN_VOLTAGE) {
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printk(BIOS_ERR, "%s: voltage out of range\n", __func__);
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return -1;
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}
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selector = DIV_ROUND_UP(volt_uv - MT6691_MIN_VOLTAGE, MT6691_STEP_UV);
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return i2c_write_field(i2c_num, MT6691_SLAVE_ADDR,
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MT6691_VSEL0, selector, 0xFF, 0);
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}
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int mt6691_get_voltage(uint8_t i2c_num)
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{
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uint8_t selector = 0;
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unsigned int volt;
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if (i2c_read_field(i2c_num, MT6691_SLAVE_ADDR, MT6691_VSEL0,
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&selector, 0xFF, 0) < 0) {
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printk(BIOS_ERR, "%s: failed to get voltage from i2c\n", __func__);
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return -1;
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}
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volt = (selector * MT6691_STEP_UV) + MT6691_MIN_VOLTAGE;
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if (volt > MT6691_MAX_VOLTAGE) {
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printk(BIOS_ERR, "%s: voltage out of range\n", __func__);
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return -1;
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}
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return volt;
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}
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static uint8_t get_mt6691_chip_id(uint8_t i2c_num)
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{
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uint8_t id;
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if (i2c_read_field(i2c_num, MT6691_SLAVE_ADDR, MT6691_MONITOR,
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&id, 0x1, MT6691_PGOOD_SHIFT) < 0) {
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printk(BIOS_ERR, "%s: failed to read from i2c", __func__);
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return 0;
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}
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return id;
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}
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void mt6691_probe(uint8_t i2c_num)
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{
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/* Check device ID is MT6691 */
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if (!get_mt6691_chip_id(i2c_num)) {
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printk(BIOS_ERR, "unknown MT6691 chip_id\n");
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return;
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}
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/* Slew rate 12mV */
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i2c_write_field(i2c_num, MT6691_SLAVE_ADDR, MT6691_CTRL2, 0x1,
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MT6691_DN_SR_MASK, MT6691_DN_SR_SHIFT);
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}
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