6.12-stable review patch. If anyone has any objections, please let me know.
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From: Peter Griffin peter.griffin@linaro.org
[ Upstream commit 68f5ef7eebf0f41df4d38ea55a54c2462af1e3d6 ]
gs101 I/O coherency shareability bits differ from exynosauto SoC. To support both SoCs move this info the SoC drvdata.
Currently both the value and mask are the same for both gs101 and exynosauto, thus we use the same value.
Signed-off-by: Peter Griffin peter.griffin@linaro.org Link: https://lore.kernel.org/r/20250319-exynos-ufs-stability-fixes-v2-2-96722cc2b... Fixes: d11e0a318df8 ("scsi: ufs: exynos: Add support for Tensor gs101 SoC") Cc: stable@vger.kernel.org Reviewed-by: Bart Van Assche bvanassche@acm.org Signed-off-by: Martin K. Petersen martin.petersen@oracle.com Signed-off-by: Sasha Levin sashal@kernel.org --- drivers/ufs/host/ufs-exynos.c | 20 ++++++++++++++------ drivers/ufs/host/ufs-exynos.h | 2 ++ 2 files changed, 16 insertions(+), 6 deletions(-)
diff --git a/drivers/ufs/host/ufs-exynos.c b/drivers/ufs/host/ufs-exynos.c index 149c8127cf556..453f1dee103c8 100644 --- a/drivers/ufs/host/ufs-exynos.c +++ b/drivers/ufs/host/ufs-exynos.c @@ -86,11 +86,16 @@ UIC_TRANSPORT_NO_CONNECTION_RX |\ UIC_TRANSPORT_BAD_TC)
-/* FSYS UFS Shareability */ -#define UFS_WR_SHARABLE BIT(2) -#define UFS_RD_SHARABLE BIT(1) -#define UFS_SHARABLE (UFS_WR_SHARABLE | UFS_RD_SHARABLE) -#define UFS_SHAREABILITY_OFFSET 0x710 +/* UFS Shareability */ +#define UFS_EXYNOSAUTO_WR_SHARABLE BIT(2) +#define UFS_EXYNOSAUTO_RD_SHARABLE BIT(1) +#define UFS_EXYNOSAUTO_SHARABLE (UFS_EXYNOSAUTO_WR_SHARABLE | \ + UFS_EXYNOSAUTO_RD_SHARABLE) +#define UFS_GS101_WR_SHARABLE BIT(1) +#define UFS_GS101_RD_SHARABLE BIT(0) +#define UFS_GS101_SHARABLE (UFS_GS101_WR_SHARABLE | \ + UFS_GS101_RD_SHARABLE) +#define UFS_SHAREABILITY_OFFSET 0x710
/* Multi-host registers */ #define MHCTRL 0xC4 @@ -206,7 +211,7 @@ static int exynos_ufs_shareability(struct exynos_ufs *ufs) if (ufs->sysreg) { return regmap_update_bits(ufs->sysreg, ufs->shareability_reg_offset, - UFS_SHARABLE, UFS_SHARABLE); + ufs->iocc_mask, ufs->iocc_mask); }
attr->tx_dif_p_nsec = 3200000; @@ -1148,6 +1153,7 @@ static int exynos_ufs_parse_dt(struct device *dev, struct exynos_ufs *ufs) } }
+ ufs->iocc_mask = ufs->drv_data->iocc_mask; ufs->pclk_avail_min = PCLK_AVAIL_MIN; ufs->pclk_avail_max = PCLK_AVAIL_MAX;
@@ -2021,6 +2027,7 @@ static const struct exynos_ufs_drv_data exynosauto_ufs_drvs = { .opts = EXYNOS_UFS_OPT_BROKEN_AUTO_CLK_CTRL | EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR | EXYNOS_UFS_OPT_BROKEN_RX_SEL_IDX, + .iocc_mask = UFS_EXYNOSAUTO_SHARABLE, .drv_init = exynosauto_ufs_drv_init, .post_hce_enable = exynosauto_ufs_post_hce_enable, .pre_link = exynosauto_ufs_pre_link, @@ -2143,6 +2150,7 @@ static const struct exynos_ufs_drv_data gs101_ufs_drvs = { EXYNOS_UFS_OPT_SKIP_CONFIG_PHY_ATTR | EXYNOS_UFS_OPT_UFSPR_SECURE | EXYNOS_UFS_OPT_TIMER_TICK_SELECT, + .iocc_mask = UFS_GS101_SHARABLE, .drv_init = gs101_ufs_drv_init, .pre_link = gs101_ufs_pre_link, .post_link = gs101_ufs_post_link, diff --git a/drivers/ufs/host/ufs-exynos.h b/drivers/ufs/host/ufs-exynos.h index 9670dc138d1e4..ad49d9cdd5c12 100644 --- a/drivers/ufs/host/ufs-exynos.h +++ b/drivers/ufs/host/ufs-exynos.h @@ -181,6 +181,7 @@ struct exynos_ufs_drv_data { struct exynos_ufs_uic_attr *uic_attr; unsigned int quirks; unsigned int opts; + u32 iocc_mask; /* SoC's specific operations */ int (*drv_init)(struct exynos_ufs *ufs); int (*pre_link)(struct exynos_ufs *ufs); @@ -231,6 +232,7 @@ struct exynos_ufs { const struct exynos_ufs_drv_data *drv_data; struct regmap *sysreg; u32 shareability_reg_offset; + u32 iocc_mask;
u32 opts; #define EXYNOS_UFS_OPT_HAS_APB_CLK_CTRL BIT(0)