[PATCH 38/40] drm/amd/pm/swsmu/smu11/navi10_ppt: Remove unused 'struct i2c_algorithm navi10_i2c_algo'
Lee Jones
lee.jones at linaro.org
Tue Nov 24 19:38:22 UTC 2020
Fixes the following W=1 kernel build warning(s):
Cc: Alex Deucher <alexander.deucher at amd.com>
Cc: "Christian König" <christian.koenig at amd.com>
Cc: David Airlie <airlied at linux.ie>
Cc: Daniel Vetter <daniel at ffwll.ch>
Cc: Evan Quan <evan.quan at amd.com>
Cc: amd-gfx at lists.freedesktop.org
Cc: dri-devel at lists.freedesktop.org
Signed-off-by: Lee Jones <lee.jones at linaro.org>
---
.../gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c | 204 ------------------
1 file changed, 204 deletions(-)
diff --git a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
index ef1a62e86a0ee..59bd7cd3ca8df 100644
--- a/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu11/navi10_ppt.c
@@ -2325,210 +2325,6 @@ static int navi10_run_umc_cdr_workaround(struct smu_context *smu)
return 0;
}
-static void navi10_fill_i2c_req(SwI2cRequest_t *req, bool write,
- uint8_t address, uint32_t numbytes,
- uint8_t *data)
-{
- int i;
-
- req->I2CcontrollerPort = 0;
- req->I2CSpeed = 2;
- req->SlaveAddress = address;
- req->NumCmds = numbytes;
-
- for (i = 0; i < numbytes; i++) {
- SwI2cCmd_t *cmd = &req->SwI2cCmds[i];
-
- /* First 2 bytes are always write for lower 2b EEPROM address */
- if (i < 2)
- cmd->Cmd = 1;
- else
- cmd->Cmd = write;
-
-
- /* Add RESTART for read after address filled */
- cmd->CmdConfig |= (i == 2 && !write) ? CMDCONFIG_RESTART_MASK : 0;
-
- /* Add STOP in the end */
- cmd->CmdConfig |= (i == (numbytes - 1)) ? CMDCONFIG_STOP_MASK : 0;
-
- /* Fill with data regardless if read or write to simplify code */
- cmd->RegisterAddr = data[i];
- }
-}
-
-static int navi10_i2c_read_data(struct i2c_adapter *control,
- uint8_t address,
- uint8_t *data,
- uint32_t numbytes)
-{
- uint32_t i, ret = 0;
- SwI2cRequest_t req;
- struct amdgpu_device *adev = to_amdgpu_device(control);
- struct smu_table_context *smu_table = &adev->smu.smu_table;
- struct smu_table *table = &smu_table->driver_table;
-
- if (numbytes > MAX_SW_I2C_COMMANDS) {
- dev_err(adev->dev, "numbytes requested %d is over max allowed %d\n",
- numbytes, MAX_SW_I2C_COMMANDS);
- return -EINVAL;
- }
-
- memset(&req, 0, sizeof(req));
- navi10_fill_i2c_req(&req, false, address, numbytes, data);
-
- mutex_lock(&adev->smu.mutex);
- /* Now read data starting with that address */
- ret = smu_cmn_update_table(&adev->smu, SMU_TABLE_I2C_COMMANDS, 0, &req,
- true);
- mutex_unlock(&adev->smu.mutex);
-
- if (!ret) {
- SwI2cRequest_t *res = (SwI2cRequest_t *)table->cpu_addr;
-
- /* Assume SMU fills res.SwI2cCmds[i].Data with read bytes */
- for (i = 0; i < numbytes; i++)
- data[i] = res->SwI2cCmds[i].Data;
-
- dev_dbg(adev->dev, "navi10_i2c_read_data, address = %x, bytes = %d, data :",
- (uint16_t)address, numbytes);
-
- print_hex_dump(KERN_DEBUG, "data: ", DUMP_PREFIX_NONE,
- 8, 1, data, numbytes, false);
- } else
- dev_err(adev->dev, "navi10_i2c_read_data - error occurred :%x", ret);
-
- return ret;
-}
-
-static int navi10_i2c_write_data(struct i2c_adapter *control,
- uint8_t address,
- uint8_t *data,
- uint32_t numbytes)
-{
- uint32_t ret;
- SwI2cRequest_t req;
- struct amdgpu_device *adev = to_amdgpu_device(control);
-
- if (numbytes > MAX_SW_I2C_COMMANDS) {
- dev_err(adev->dev, "numbytes requested %d is over max allowed %d\n",
- numbytes, MAX_SW_I2C_COMMANDS);
- return -EINVAL;
- }
-
- memset(&req, 0, sizeof(req));
- navi10_fill_i2c_req(&req, true, address, numbytes, data);
-
- mutex_lock(&adev->smu.mutex);
- ret = smu_cmn_update_table(&adev->smu, SMU_TABLE_I2C_COMMANDS, 0, &req, true);
- mutex_unlock(&adev->smu.mutex);
-
- if (!ret) {
- dev_dbg(adev->dev, "navi10_i2c_write(), address = %x, bytes = %d , data: ",
- (uint16_t)address, numbytes);
-
- print_hex_dump(KERN_DEBUG, "data: ", DUMP_PREFIX_NONE,
- 8, 1, data, numbytes, false);
- /*
- * According to EEPROM spec there is a MAX of 10 ms required for
- * EEPROM to flush internal RX buffer after STOP was issued at the
- * end of write transaction. During this time the EEPROM will not be
- * responsive to any more commands - so wait a bit more.
- */
- msleep(10);
-
- } else
- dev_err(adev->dev, "navi10_i2c_write- error occurred :%x", ret);
-
- return ret;
-}
-
-static int navi10_i2c_xfer(struct i2c_adapter *i2c_adap,
- struct i2c_msg *msgs, int num)
-{
- uint32_t i, j, ret, data_size, data_chunk_size, next_eeprom_addr = 0;
- uint8_t *data_ptr, data_chunk[MAX_SW_I2C_COMMANDS] = { 0 };
-
- for (i = 0; i < num; i++) {
- /*
- * SMU interface allows at most MAX_SW_I2C_COMMANDS bytes of data at
- * once and hence the data needs to be spliced into chunks and sent each
- * chunk separately
- */
- data_size = msgs[i].len - 2;
- data_chunk_size = MAX_SW_I2C_COMMANDS - 2;
- next_eeprom_addr = (msgs[i].buf[0] << 8 & 0xff00) | (msgs[i].buf[1] & 0xff);
- data_ptr = msgs[i].buf + 2;
-
- for (j = 0; j < data_size / data_chunk_size; j++) {
- /* Insert the EEPROM dest addess, bits 0-15 */
- data_chunk[0] = ((next_eeprom_addr >> 8) & 0xff);
- data_chunk[1] = (next_eeprom_addr & 0xff);
-
- if (msgs[i].flags & I2C_M_RD) {
- ret = navi10_i2c_read_data(i2c_adap,
- (uint8_t)msgs[i].addr,
- data_chunk, MAX_SW_I2C_COMMANDS);
-
- memcpy(data_ptr, data_chunk + 2, data_chunk_size);
- } else {
-
- memcpy(data_chunk + 2, data_ptr, data_chunk_size);
-
- ret = navi10_i2c_write_data(i2c_adap,
- (uint8_t)msgs[i].addr,
- data_chunk, MAX_SW_I2C_COMMANDS);
- }
-
- if (ret) {
- num = -EIO;
- goto fail;
- }
-
- next_eeprom_addr += data_chunk_size;
- data_ptr += data_chunk_size;
- }
-
- if (data_size % data_chunk_size) {
- data_chunk[0] = ((next_eeprom_addr >> 8) & 0xff);
- data_chunk[1] = (next_eeprom_addr & 0xff);
-
- if (msgs[i].flags & I2C_M_RD) {
- ret = navi10_i2c_read_data(i2c_adap,
- (uint8_t)msgs[i].addr,
- data_chunk, (data_size % data_chunk_size) + 2);
-
- memcpy(data_ptr, data_chunk + 2, data_size % data_chunk_size);
- } else {
- memcpy(data_chunk + 2, data_ptr, data_size % data_chunk_size);
-
- ret = navi10_i2c_write_data(i2c_adap,
- (uint8_t)msgs[i].addr,
- data_chunk, (data_size % data_chunk_size) + 2);
- }
-
- if (ret) {
- num = -EIO;
- goto fail;
- }
- }
- }
-
-fail:
- return num;
-}
-
-static u32 navi10_i2c_func(struct i2c_adapter *adap)
-{
- return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
-}
-
-
-static const struct i2c_algorithm navi10_i2c_algo = {
- .master_xfer = navi10_i2c_xfer,
- .functionality = navi10_i2c_func,
-};
-
static ssize_t navi10_get_gpu_metrics(struct smu_context *smu,
void **table)
{
--
2.25.1
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