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| author | Krzysztof Kozlowski <k.kozlowski@samsung.com> | 2014-12-11 16:40:21 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2014-12-12 16:04:39 +0300 |
| commit | 1222d8fe578cd28a6c7f5e4e6c6b664c56abfdc0 (patch) | |
| tree | 66732c12ba096693cdeed313c615d94d7e42de34 /drivers/gpu/host1x/hw/cdma_hw.c | |
| parent | b2776bf7149bddd1f4161f14f79520f17fc1d71d (diff) | |
| download | linux-1222d8fe578cd28a6c7f5e4e6c6b664c56abfdc0.tar.xz | |
regulator: s2mps11: Fix dw_mmc failure on Gear 2
Invalid buck4 configuration for linear mapping of voltage in S2MPS14
regulators caused boot failure on Gear 2 (dw_mmc-exynos):
[ 3.569137] EXT4-fs (mmcblk0p15): mounted filesystem with ordered data mode. Opts: (null)
[ 3.571716] VFS: Mounted root (ext4 filesystem) readonly on device 179:15.
[ 3.629842] mmcblk0: error -110 sending status command, retrying
[ 3.630244] mmcblk0: error -110 sending status command, retrying
[ 3.636292] mmcblk0: error -110 sending status command, aborting
Buck4 voltage regulator has different minimal voltage value than other
bucks. Commit merging multiple regulator description macros caused to
use linear_min_sel from buck[1235] regulators as value for buck4. This
lead to lower voltage of buck4 than required.
Output of the buck4 is used internally as power source for
LDO{3,4,7,11,19,20,21,23}. On Gear 2 board LDO11 is used as MMC
regulator (V_EMMC_1.8V).
Fixes: 5a867cf28893 ("regulator: s2mps11: Optimize the regulator description macro")
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@samsung.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: <stable@vger.kernel.org>
Diffstat (limited to 'drivers/gpu/host1x/hw/cdma_hw.c')
0 files changed, 0 insertions, 0 deletions