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Diffstat (limited to 'driver/temp_sensor/amd_r19me4070.c')
-rw-r--r--driver/temp_sensor/amd_r19me4070.c90
1 files changed, 0 insertions, 90 deletions
diff --git a/driver/temp_sensor/amd_r19me4070.c b/driver/temp_sensor/amd_r19me4070.c
deleted file mode 100644
index b331a1a3eb..0000000000
--- a/driver/temp_sensor/amd_r19me4070.c
+++ /dev/null
@@ -1,90 +0,0 @@
-/* Copyright 2020 The Chromium OS Authors. All rights reserved.
- * Use of this source code is governed by a BSD-style license that can be
- * found in the LICENSE file.
- */
-
-/* R19ME4070 temperature sensor module for Chrome EC */
-
-#include "chipset.h"
-#include "common.h"
-#include "console.h"
-#include "hooks.h"
-#include "i2c.h"
-#include "amd_r19me4070.h"
-#include "power.h"
-
-#define CPRINTS(format, args...) cprints(CC_USBCHARGE, format, ## args)
-#define CPRINTF(format, args...) cprintf(CC_USBCHARGE, format, ## args)
-
-/* GPU I2C address */
-#define GPU_ADDR_FLAGS 0x0041
-
-#define GPU_INIT_OFFSET 0x01
-#define GPU_TEMPERATURE_OFFSET 0x03
-
-static int initialized;
-/*
- * Tell SMBus we want to read 4 Byte from register offset(0x01665A)
- */
-static const uint8_t gpu_init_write_value[5] = {
- 0x04, 0x0F, 0x01, 0x66, 0x5A,
-};
-
-static void gpu_init_temp_sensor(void)
-{
- int rv;
- rv = i2c_write_block(I2C_PORT_GPU, GPU_ADDR_FLAGS, GPU_INIT_OFFSET,
- gpu_init_write_value,
- ARRAY_SIZE(gpu_init_write_value));
- if (rv == EC_SUCCESS) {
- initialized = 1;
- return;
- }
- CPRINTS("init GPU fail");
-}
-
-/* INIT GPU first before read the GPU's die tmeperature. */
-int get_temp_R19ME4070(int idx, int *temp_ptr)
-{
- uint8_t reg[5];
- int rv;
-
- /*
- * We shouldn't read the GPU temperature when the state
- * is not in S0, because GPU is enabled in S0.
- */
- if ((power_get_state()) != POWER_S0) {
- *temp_ptr = C_TO_K(0);
- return EC_ERROR_BUSY;
- }
- /* if no INIT GPU, must init it first and wait 1 sec. */
- if (!initialized) {
- gpu_init_temp_sensor();
- *temp_ptr = C_TO_K(0);
- return EC_ERROR_BUSY;
- }
- rv = i2c_read_block(I2C_PORT_GPU, GPU_ADDR_FLAGS,
- GPU_TEMPERATURE_OFFSET, reg, ARRAY_SIZE(reg));
- if (rv) {
- CPRINTS("read GPU Temperature fail");
- *temp_ptr = C_TO_K(0);
- return rv;
- }
- /*
- * The register is four bytes, bit[17:9] represents the GPU temperature.
- * 0x000 : 0 ゚C
- * 0x001 : 1 ゚C
- * 0x002 : 2 ゚C
- * ...
- * 0x1FF : 511 ゚C
- * -------------------------------
- * reg[4] = bit0 - bit7
- * reg[3] = bit8 - bit15
- * reg[2] = bit16 - bit23
- * reg[1] = bit24 - bit31
- * reg[0] = 0x04
- */
- *temp_ptr = C_TO_K(reg[3] >> 1);
-
- return EC_SUCCESS;
-}