Merge "mmc: sdhci: Vote for new IRQ specific QoS request" (2049a6cf) · Commits · e / devices / android_kernel_sony_msm8994

drivers/mmc/host/sdhci.c

+22 −0

Original line number	Diff line number	Diff line
		@@ -3401,6 +3401,27 @@ static int sdhci_is_adma2_64bit(struct sdhci_host *host)
		}
		#endif

		#ifdef CONFIG_SMP
		static void sdhci_set_pmqos_req_type(struct sdhci_host *host)
		{

		/*
		* The default request type PM_QOS_REQ_ALL_CORES is
		* applicable to all CPU cores that are online and
		* this would have a power impact when there are more
		* number of CPUs. This new PM_QOS_REQ_AFFINE_IRQ request
		* type shall update/apply the vote only to that CPU to
		* which this IRQ's affinity is set to.
		*/
		host->pm_qos_req_dma.type = PM_QOS_REQ_AFFINE_IRQ;
		host->pm_qos_req_dma.irq = host->irq;
		}
		#else
		static void sdhci_set_pmqos_req_type(struct sdhci_host *host)
		{
		}
		#endif

		int sdhci_add_host(struct sdhci_host *host)
		{
		struct mmc_host *mmc;
		@@ -3924,6 +3945,7 @@ int sdhci_add_host(struct sdhci_host *host)

		if (host->cpu_dma_latency_us) {
		host->pm_qos_timeout_us = 10000; /* default value */
		sdhci_set_pmqos_req_type(host);
		pm_qos_add_request(&host->pm_qos_req_dma,
		PM_QOS_CPU_DMA_LATENCY, PM_QOS_DEFAULT_VALUE);