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scsi: ufs: use an enum for host capabilities 

Use an enum to specify the host capabilities instead of #defines inside the
structure definition.

Link: https://lore.kernel.org/r/20200318104016.28049-3-stanley.chu@mediatek.com
Reviewed-by: Avri Altman <avri.altman@wdc.com>
Reviewed-by: Can Guo <cang@codeaurora.org>
Reviewed-by: Bean Huo <beanhuo@micron.com>
Reviewed-by: Asutosh Das <asutoshd@codeaurora.org>
Signed-off-by: Stanley Chu <stanley.chu@mediatek.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
This commit is contained in:
Stanley Chu 2020-03-18 18:40:11 +08:00 committed by Martin K. Petersen
parent ba0320fbb8
commit c2014682d0
1 changed files with 37 additions and 28 deletions
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65
drivers/scsi/ufs/ufshcd.h
View File

@ -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;