/*!
******************************************************************************
@Function EnableSystemClocks
@Description Setup up the clocks for the graphics device to work.
@Return PVRSRV_ERROR
******************************************************************************/
PVRSRV_ERROR EnableSystemClocks(SYS_DATA *psSysData)
{
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
#if !defined(PM_RUNTIME_SUPPORT)
struct clk *psCLK;
#endif
PVR_TRACE(("EnableSystemClocks: Enabling System Clocks"));
if (!psSysSpecData->bSysClocksOneTimeInit)
{
mutex_init(&psSysSpecData->sPowerLock);
atomic_set(&psSysSpecData->sSGXClocksEnabled, 0);
psSysSpecData->bSysClocksOneTimeInit = IMG_TRUE;
#if !defined(PM_RUNTIME_SUPPORT)
psCLK = clk_get(NULL, "sgx_ck");
if (IS_ERR(psCLK))
{
PVR_DPF((PVR_DBG_ERROR, "EnableSsystemClocks: Couldn't get SGX Functional Clock"));
return PVRSRV_ERROR_UNABLE_TO_GET_CLOCK;
}
psSysSpecData->psSGX_FCK = psCLK;
#endif
}
return AcquireGPTimer(psSysSpecData);
}
/*!
******************************************************************************
@Function EnableSystemClocks
@Description Setup up the clocks for the graphics device to work.
@Return PVRSRV_ERROR
******************************************************************************/
PVRSRV_ERROR EnableSystemClocks(SYS_DATA *psSysData)
{
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
#if !defined(PM_RUNTIME_SUPPORT)
struct clk *psCLK;
IMG_INT res;
#endif
PVR_TRACE(("EnableSystemClocks: Enabling System Clocks"));
if (!psSysSpecData->bSysClocksOneTimeInit)
{
mutex_init(&psSysSpecData->sPowerLock);
atomic_set(&psSysSpecData->sSGXClocksEnabled, 0);
psCLK = clk_get(NULL, SGX_PARENT_CLOCK);
if (IS_ERR(psCLK))
{
PVR_DPF((PVR_DBG_ERROR, "EnableSsystemClocks: Couldn't get Core Clock"));
return PVRSRV_ERROR_UNABLE_TO_GET_PARENT_CLOCK;
}
psSysSpecData->psCORE_CK = psCLK;
// psSysSpecData->bSysClocksOneTimeInit = IMG_TRUE;
#if !defined(PM_RUNTIME_SUPPORT)
psCLK = clk_get(NULL, "sgx_fck");
if (IS_ERR(psCLK))
{
PVR_DPF((PVR_DBG_ERROR, "EnableSsystemClocks: Couldn't get SGX Functional Clock"));
return PVRSRV_ERROR_UNABLE_TO_GET_CLOCK;
}
psSysSpecData->psSGX_FCK = psCLK;
psCLK = clk_get(NULL, "sgx_ick");
if (IS_ERR(psCLK))
{
PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't get SGX Interface Clock"));
return PVRSRV_ERROR_UNABLE_TO_GET_CLOCK;
}
psSysSpecData->psSGX_ICK = psCLK;
res = clk_set_parent(psSysSpecData->psSGX_FCK, psSysSpecData->psCORE_CK);
if (res < 0)
{
PVR_DPF((PVR_DBG_ERROR, "EnableSystemClocks: Couldn't set SGX parent clock (%d)", res));
return PVRSRV_ERROR_UNABLE_TO_GET_PARENT_CLOCK;
}
psSysSpecData->bSysClocksOneTimeInit = IMG_TRUE;
#endif
}
return AcquireGPTimer(psSysSpecData);
}
/*!
******************************************************************************
@Function EnableSystemClocks
@Description Setup up the clocks for the graphics device to work.
@Return PVRSRV_ERROR
******************************************************************************/
PVRSRV_ERROR EnableSystemClocks(SYS_DATA *psSysData)
{
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
PVR_TRACE(("EnableSystemClocks: Enabling System Clocks"));
if (!psSysSpecData->bSysClocksOneTimeInit)
{
mutex_init(&psSysSpecData->sPowerLock);
atomic_set(&psSysSpecData->sSGXClocksEnabled, 0);
psSysSpecData->bSysClocksOneTimeInit = IMG_TRUE;
}
return AcquireGPTimer(psSysSpecData);
}
PVRSRV_ERROR EnableSystemClocks(SYS_DATA *psSysData)
{
SYS_SPECIFIC_DATA *psSysSpecData = (SYS_SPECIFIC_DATA *) psSysData->pvSysSpecificData;
PVR_TRACE(("EnableSystemClocks: Enabling System Clocks"));
if (!psSysSpecData->bSysClocksOneTimeInit)
{
struct clk *sgx_clk, *parent_clk;
int res;
sgx_clk = clk_get(&gpsPVRLDMDev->dev, "gpu_fck");
if (IS_ERR_OR_NULL(sgx_clk)) {
/* try another name that the sgx clock might be known as.. */
sgx_clk = clk_get(&gpsPVRLDMDev->dev, "sgx_clk_mux_ck");
}
if (IS_ERR_OR_NULL(sgx_clk)) {
PVR_DPF((PVR_DBG_ERROR, "EnableSGXClocks: could not get clock (%ld)", -PTR_ERR(sgx_clk)));
return PVRSRV_ERROR_UNABLE_TO_ENABLE_CLOCK;
}
parent_clk = clk_get(&gpsPVRLDMDev->dev, "dpll_per_m7x2_ck");
if (IS_ERR_OR_NULL(parent_clk)) {
PVR_DPF((PVR_DBG_ERROR, "EnableSGXClocks: could not get clock (%ld)", -PTR_ERR(parent_clk)));
clk_put(sgx_clk);
return PVRSRV_ERROR_UNABLE_TO_ENABLE_CLOCK;
}
res = clk_set_parent(sgx_clk, parent_clk);
if (IS_ERR_VALUE(res)) {
PVR_DPF((PVR_DBG_ERROR, "EnableSGXClocks: could not set clock (%d)", -res));
clk_put(sgx_clk);
clk_put(parent_clk);
return PVRSRV_ERROR_UNABLE_TO_ENABLE_CLOCK;
}
mutex_init(&psSysSpecData->sPowerLock);
atomic_set(&psSysSpecData->sSGXClocksEnabled, 0);
psSysSpecData->bSysClocksOneTimeInit = IMG_TRUE;
}
return AcquireGPTimer(psSysSpecData);
}