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Message-ID: <20241025131442.112862-1-peter.griffin@linaro.org>
Date: Fri, 25 Oct 2024 14:14:31 +0100
From: Peter Griffin <peter.griffin@...aro.org>
To: alim.akhtar@...sung.com,
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martin.petersen@...cle.com,
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Cc: tudor.ambarus@...aro.org,
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ebiggers@...nel.org,
Peter Griffin <peter.griffin@...aro.org>
Subject: [PATCH v2 00/11] UFS cleanups and enhancements to ufs-exynos for gs101
Hi folks,
This series provides a few cleanups, bug fixes and feature enhancements for
the ufs-exynos driver, particularly for gs101 SoC.
Regarding cleanup we remove some unused phy attribute data that isn't
required when EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR is not set.
Regarding bug fixes the check for EXYNOS_UFS_OPT_UFSPR_SECURE is moved
inside exynos_ufs_config_smu() which fixes a Serror in the resume path
for gs101.
Regarding feature enhancements:
* Gear 4 is enabled which has higher speeds and better power management.
* WriteBooster capability is enabled for gs101 which increases write
performance.
In v2 of this series additionally I've added following patches 8-11 which
add
* Clock gating and hibern8 capabilities are enabled for gs101. This leads
to a significantly cooler phone when running the upstream kernel on
Pixel 6.
Approximately 10 degrees cooler after 20 minutes at a shell prompt.
* AXI bus on gs101 is correctly configured for write line unique transactions
* ACG is set to be controlled by UFS_ACG_DISABLE for gs101
In v1 I mentioned the phy hibern8 series in [1] that is still under discussion
however further testing reveals hibern8 feature still works without the additional
UFS phy register writes done in [1]. So this series can be merged as is.
[1] https://lore.kernel.org/linux-arm-kernel/20241002201555.3332138-3-peter.griffin@linaro.org/T/
regards,
Peter
Changes since v1:
- Remove superfluous struct device parameter to exynos_ufs_shareability() (Peter)
- Add patches 8-11 (hibern8 fixes, WLU support etc)
Peter Griffin (11):
scsi: ufs: exynos: Allow UFS Gear 4
scsi: ufs: exynos: add check inside exynos_ufs_config_smu()
scsi: ufs: exynos: gs101: remove EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL
scsi: ufs: exynos: Add EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR check
scsi: ufs: exynos: gs101: remove unused phy attribute fields
scsi: ufs: exynos: remove tx_dif_p_nsec from exynosauto_ufs_drv_init()
scsi: ufs: exynos: add gs101_ufs_drv_init() hook and enable
WriteBooster
scsi: ufs: exynos: enable write line unique transactions on gs101
scsi: ufs: exynos: set ACG to be controlled by UFS_ACG_DISABLE
scsi: ufs: exynos: fix hibern8 notify callbacks
scsi: ufs: exynos: gs101: enable clock gating with hibern8
drivers/ufs/host/ufs-exynos.c | 126 +++++++++++++++++++---------------
1 file changed, 70 insertions(+), 56 deletions(-)
--
2.47.0.163.g1226f6d8fa-goog
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