diff options
Diffstat (limited to 'drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c')
| -rw-r--r-- | drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c | 81 |
1 files changed, 54 insertions, 27 deletions
diff --git a/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c b/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c index 73ffa8fde3df..dd2d66090d23 100644 --- a/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c +++ b/drivers/gpu/drm/amd/amdgpu/smu_v11_0_i2c.c @@ -26,6 +26,7 @@ #include "smu_v11_0_i2c.h" #include "amdgpu.h" +#include "amdgpu_dpm.h" #include "soc15_common.h" #include <drm/drm_fixed.h> #include <drm/drm_drv.h> @@ -43,11 +44,10 @@ #define I2C_X_RESTART BIT(31) -#define to_amdgpu_device(x) (container_of(x, struct amdgpu_device, pm.smu_i2c)) - static void smu_v11_0_i2c_set_clock_gating(struct i2c_adapter *control, bool en) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; uint32_t reg = RREG32_SOC15(SMUIO, 0, mmSMUIO_PWRMGT); reg = REG_SET_FIELD(reg, SMUIO_PWRMGT, i2c_clk_gate_en, en ? 1 : 0); @@ -75,7 +75,8 @@ static void smu_v11_0_i2c_set_clock_gating(struct i2c_adapter *control, bool en) static int smu_v11_0_i2c_enable(struct i2c_adapter *control, bool enable) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; WREG32_SOC15(SMUIO, 0, mmCKSVII2C_IC_ENABLE, enable ? 1 : 0); @@ -100,7 +101,8 @@ static int smu_v11_0_i2c_enable(struct i2c_adapter *control, bool enable) static void smu_v11_0_i2c_clear_status(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; /* do */ { RREG32_SOC15(SMUIO, 0, mmCKSVII2C_IC_CLR_INTR); @@ -110,7 +112,8 @@ static void smu_v11_0_i2c_clear_status(struct i2c_adapter *control) static void smu_v11_0_i2c_configure(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; uint32_t reg = 0; reg = REG_SET_FIELD(reg, CKSVII2C_IC_CON, IC_SLAVE_DISABLE, 1); @@ -131,7 +134,8 @@ static void smu_v11_0_i2c_configure(struct i2c_adapter *control) static void smu_v11_0_i2c_set_clock(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; /* * Standard mode speed, These values are taken from SMUIO MAS, @@ -154,7 +158,8 @@ static void smu_v11_0_i2c_set_clock(struct i2c_adapter *control) static void smu_v11_0_i2c_set_address(struct i2c_adapter *control, u16 address) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; /* The IC_TAR::IC_TAR field is 10-bits wide. * It takes a 7-bit or 10-bit addresses as an address, @@ -165,7 +170,8 @@ static void smu_v11_0_i2c_set_address(struct i2c_adapter *control, u16 address) static uint32_t smu_v11_0_i2c_poll_tx_status(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; uint32_t ret = I2C_OK; uint32_t reg, reg_c_tx_abrt_source; @@ -216,7 +222,8 @@ static uint32_t smu_v11_0_i2c_poll_tx_status(struct i2c_adapter *control) static uint32_t smu_v11_0_i2c_poll_rx_status(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; uint32_t ret = I2C_OK; uint32_t reg_ic_status, reg_c_tx_abrt_source; @@ -262,7 +269,8 @@ static uint32_t smu_v11_0_i2c_transmit(struct i2c_adapter *control, u16 address, u8 *data, u32 numbytes, u32 i2c_flag) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; u32 bytes_sent, reg, ret = I2C_OK; unsigned long timeout_counter; @@ -360,7 +368,8 @@ static uint32_t smu_v11_0_i2c_receive(struct i2c_adapter *control, u16 address, u8 *data, u32 numbytes, u32 i2c_flag) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; uint32_t bytes_received, ret = I2C_OK; bytes_received = 0; @@ -431,7 +440,8 @@ static uint32_t smu_v11_0_i2c_receive(struct i2c_adapter *control, static void smu_v11_0_i2c_abort(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; uint32_t reg = 0; /* Enable I2C engine; */ @@ -447,7 +457,8 @@ static void smu_v11_0_i2c_abort(struct i2c_adapter *control) static bool smu_v11_0_i2c_activity_done(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; const uint32_t IDLE_TIMEOUT = 1024; uint32_t timeout_count = 0; @@ -508,7 +519,8 @@ static void smu_v11_0_i2c_init(struct i2c_adapter *control) static void smu_v11_0_i2c_fini(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; u32 status, enable, en_stat; int res; @@ -543,7 +555,8 @@ static void smu_v11_0_i2c_fini(struct i2c_adapter *control) static bool smu_v11_0_i2c_bus_lock(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; /* Send PPSMC_MSG_RequestI2CBus */ if (!amdgpu_dpm_smu_i2c_bus_access(adev, true)) @@ -554,7 +567,8 @@ static bool smu_v11_0_i2c_bus_lock(struct i2c_adapter *control) static bool smu_v11_0_i2c_bus_unlock(struct i2c_adapter *control) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(control); + struct amdgpu_device *adev = smu_i2c->adev; /* Send PPSMC_MSG_ReleaseI2CBus */ if (!amdgpu_dpm_smu_i2c_bus_access(adev, false)) @@ -587,16 +601,17 @@ static uint32_t smu_v11_0_i2c_write_data(struct i2c_adapter *control, if (ret != I2C_OK) DRM_ERROR("WriteI2CData() - I2C error occurred :%x", ret); - + return ret; } static void lock_bus(struct i2c_adapter *i2c, unsigned int flags) { - struct amdgpu_device *adev = to_amdgpu_device(i2c); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(i2c); + struct amdgpu_device *adev = smu_i2c->adev; - mutex_lock(&adev->pm.smu_i2c_mutex); + mutex_lock(&smu_i2c->mutex); if (!smu_v11_0_i2c_bus_lock(i2c)) DRM_ERROR("Failed to lock the bus from SMU"); else @@ -611,13 +626,14 @@ static int trylock_bus(struct i2c_adapter *i2c, unsigned int flags) static void unlock_bus(struct i2c_adapter *i2c, unsigned int flags) { - struct amdgpu_device *adev = to_amdgpu_device(i2c); + struct amdgpu_smu_i2c_bus *smu_i2c = i2c_get_adapdata(i2c); + struct amdgpu_device *adev = smu_i2c->adev; if (!smu_v11_0_i2c_bus_unlock(i2c)) DRM_ERROR("Failed to unlock the bus from SMU"); else adev->pm.bus_locked = false; - mutex_unlock(&adev->pm.smu_i2c_mutex); + mutex_unlock(&smu_i2c->mutex); } static const struct i2c_lock_operations smu_v11_0_i2c_i2c_lock_ops = { @@ -706,19 +722,26 @@ static const struct i2c_adapter_quirks smu_v11_0_i2c_control_quirks = { .flags = I2C_AQ_NO_ZERO_LEN, }; -int smu_v11_0_i2c_control_init(struct i2c_adapter *control) +int smu_v11_0_i2c_control_init(struct amdgpu_device *adev) { - struct amdgpu_device *adev = to_amdgpu_device(control); + struct amdgpu_smu_i2c_bus *smu_i2c = &adev->pm.smu_i2c[0]; + struct i2c_adapter *control = &smu_i2c->adapter; int res; - mutex_init(&adev->pm.smu_i2c_mutex); + smu_i2c->adev = adev; + smu_i2c->port = 0; + mutex_init(&smu_i2c->mutex); control->owner = THIS_MODULE; control->class = I2C_CLASS_HWMON; control->dev.parent = &adev->pdev->dev; control->algo = &smu_v11_0_i2c_algo; - snprintf(control->name, sizeof(control->name), "AMDGPU SMU"); + snprintf(control->name, sizeof(control->name), "AMDGPU SMU 0"); control->lock_ops = &smu_v11_0_i2c_i2c_lock_ops; control->quirks = &smu_v11_0_i2c_control_quirks; + i2c_set_adapdata(control, smu_i2c); + + adev->pm.ras_eeprom_i2c_bus = &adev->pm.smu_i2c[0].adapter; + adev->pm.fru_eeprom_i2c_bus = &adev->pm.smu_i2c[0].adapter; res = i2c_add_adapter(control); if (res) @@ -727,9 +750,13 @@ int smu_v11_0_i2c_control_init(struct i2c_adapter *control) return res; } -void smu_v11_0_i2c_control_fini(struct i2c_adapter *control) +void smu_v11_0_i2c_control_fini(struct amdgpu_device *adev) { + struct i2c_adapter *control = adev->pm.ras_eeprom_i2c_bus; + i2c_del_adapter(control); + adev->pm.ras_eeprom_i2c_bus = NULL; + adev->pm.fru_eeprom_i2c_bus = NULL; } /* |