scsi: ufs: use an enum for host capabilities (c2014682) · Commits · 戴 / test

drivers/scsi/ufs/ufshcd.h

+37 −28

Original line number	Diff line number	Diff line
		@@ -512,6 +512,43 @@ enum ufshcd_quirks {
		UFSHCD_QUIRK_BROKEN_UFS_HCI_VERSION = 1 << 5,
		};

		enum ufshcd_caps {
		/* Allow dynamic clk gating */
		UFSHCD_CAP_CLK_GATING = 1 << 0,

		/* Allow hiberb8 with clk gating */
		UFSHCD_CAP_HIBERN8_WITH_CLK_GATING = 1 << 1,

		/* Allow dynamic clk scaling */
		UFSHCD_CAP_CLK_SCALING = 1 << 2,

		/* Allow auto bkops to enabled during runtime suspend */
		UFSHCD_CAP_AUTO_BKOPS_SUSPEND = 1 << 3,

		/*
		* This capability allows host controller driver to use the UFS HCI's
		* interrupt aggregation capability.
		* CAUTION: Enabling this might reduce overall UFS throughput.
		*/
		UFSHCD_CAP_INTR_AGGR = 1 << 4,

		/*
		* This capability allows the device auto-bkops to be always enabled
		* except during suspend (both runtime and suspend).
		* Enabling this capability means that device will always be allowed
		* to do background operation when it's active but it might degrade
		* the performance of ongoing read/write operations.
		*/
		UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND = 1 << 5,

		/*
		* This capability allows host controller driver to automatically
		* enable runtime power management by itself instead of waiting
		* for userspace to control the power management.
		*/
		UFSHCD_CAP_RPM_AUTOSUSPEND = 1 << 6,
		};

		/**
		* struct ufs_hba - per adapter private structure
		* @mmio_base: UFSHCI base register address
		@@ -669,34 +706,6 @@ struct ufs_hba {
		struct ufs_clk_gating clk_gating;
		/* Control to enable/disable host capabilities */
		u32 caps;
		/* Allow dynamic clk gating */
		#define UFSHCD_CAP_CLK_GATING (1 << 0)
		/* Allow hiberb8 with clk gating */
		#define UFSHCD_CAP_HIBERN8_WITH_CLK_GATING (1 << 1)
		/* Allow dynamic clk scaling */
		#define UFSHCD_CAP_CLK_SCALING (1 << 2)
		/* Allow auto bkops to enabled during runtime suspend */
		#define UFSHCD_CAP_AUTO_BKOPS_SUSPEND (1 << 3)
		/*
		* This capability allows host controller driver to use the UFS HCI's
		* interrupt aggregation capability.
		* CAUTION: Enabling this might reduce overall UFS throughput.
		*/
		#define UFSHCD_CAP_INTR_AGGR (1 << 4)
		/*
		* This capability allows the device auto-bkops to be always enabled
		* except during suspend (both runtime and suspend).
		* Enabling this capability means that device will always be allowed
		* to do background operation when it's active but it might degrade
		* the performance of ongoing read/write operations.
		*/
		#define UFSHCD_CAP_KEEP_AUTO_BKOPS_ENABLED_EXCEPT_SUSPEND (1 << 5)
		/*
		* This capability allows host controller driver to automatically
		* enable runtime power management by itself instead of waiting
		* for userspace to control the power management.
		*/
		#define UFSHCD_CAP_RPM_AUTOSUSPEND (1 << 6)

		struct devfreq *devfreq;
		struct ufs_clk_scaling clk_scaling;

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