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author | Max Krummenacher <max.krummenacher@toradex.com> | 2021-11-04 16:45:40 +0100 |
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committer | Max Krummenacher <max.krummenacher@toradex.com> | 2021-11-04 16:45:40 +0100 |
commit | 4a0abd7dd466276ee3fdf79b54f05f845f7d8844 (patch) | |
tree | fc43c16f111b65876c05e227fbd76e76604acf33 /drivers/mmc/host/dw_mmc-exynos.c | |
parent | f8e718054f4421d11638e370b933ccc6c77466ed (diff) | |
parent | e0018f4c9325b36ae75a591d54879bf9a9f41a26 (diff) |
Merge tag 'v4.4.291' into toradex_vf_4.4-nexttoradex_vf_4.4-nexttoradex_vf_4.4
This is the 4.4.291 stable release
Signed-off-by: Max Krummenacher <max.krummenacher@toradex.com>
Diffstat (limited to 'drivers/mmc/host/dw_mmc-exynos.c')
-rw-r--r-- | drivers/mmc/host/dw_mmc-exynos.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/mmc/host/dw_mmc-exynos.c b/drivers/mmc/host/dw_mmc-exynos.c index 3a7e835a0033..4ebd9c8e5a47 100644 --- a/drivers/mmc/host/dw_mmc-exynos.c +++ b/drivers/mmc/host/dw_mmc-exynos.c @@ -442,6 +442,18 @@ static s8 dw_mci_exynos_get_best_clksmpl(u8 candiates) } } + /* + * If there is no cadiates value, then it needs to return -EIO. + * If there are candiates values and don't find bset clk sample value, + * then use a first candiates clock sample value. + */ + for (i = 0; i < iter; i++) { + __c = ror8(candiates, i); + if ((__c & 0x1) == 0x1) { + loc = i; + goto out; + } + } out: return loc; } @@ -472,6 +484,8 @@ static int dw_mci_exynos_execute_tuning(struct dw_mci_slot *slot, u32 opcode) priv->tuned_sample = found; } else { ret = -EIO; + dev_warn(&mmc->class_dev, + "There is no candiates value about clksmpl!\n"); } return ret; |