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Date: Thu, 11 Dec 2014 13:39:11 +0100
From: Krzysztof Kozlowski <k.kozlowski@...sung.com>
To: Sangbeom Kim <sbkim73@...sung.com>,
Liam Girdwood <lgirdwood@...il.com>,
Mark Brown <broonie@...nel.org>, linux-kernel@...r.kernel.org
Cc: Krzysztof Kozlowski <k.kozlowski@...sung.com>,
stable@...r.kernel.org
Subject: [PATCH] regulator: s2mps11: Fix dwmmc failure on Gear 2
Invalid buck4 configuration in S2MPS14 regulators caused boot failure on
Gear 2 (dwmmc_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.
[ 3.580836] devtmpfs: mounted
[ 3.582033] Freeing unused kernel memory: 284K (c05b4000 - c05fb000)
[ 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
[ 3.642279] end_request: I/O error, dev mmcblk0, sector 7302680
[ 3.648128] end_request: I/O error, dev mmcblk0, sector 7302688
[ 3.654025] end_request: I/O error, dev mmcblk0, sector 7302696
[ 3.659927] end_request: I/O error, dev mmcblk0, sector 7302704
[ 3.665829] end_request: I/O error, dev mmcblk0, sector 7302712
[ 3.671731] end_request: I/O error, dev mmcblk0, sector 7302720
[ 3.677635] end_request: I/O error, dev mmcblk0, sector 7302728
[ 3.683536] end_request: I/O error, dev mmcblk0, sector 7302736
[ 3.689438] end_request: I/O error, dev mmcblk0, sector 7302744
[ 3.695339] end_request: I/O error, dev mmcblk0, sector 7302752
[ 3.701445] mmcblk0: error -110 sending status command, retrying
[ 3.707262] mmcblk0: error -110 sending status command, retrying
[ 3.713248] mmcblk0: error -110 sending status command, aborting
[ 3.727704] Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
[ 3.727704]
[ 3.731205] CPU: 0 PID: 1 Comm: init Not tainted 3.17.0-rc1-00003-g5a867cf28893 #1183
[ 3.739042] [<c0013b04>] (unwind_backtrace) from [<c0010dcc>] (show_stack+0x10/0x14)
[ 3.746750] [<c0010dcc>] (show_stack) from [<c0414aa0>] (dump_stack+0x70/0xbc)
[ 3.753952] [<c0414aa0>] (dump_stack) from [<c04122d4>] (panic+0x90/0x1fc)
[ 3.760810] [<c04122d4>] (panic) from [<c0022f68>] (do_exit+0x834/0x8b0)
[ 3.767492] [<c0022f68>] (do_exit) from [<c00230d0>] (do_group_exit+0x3c/0xb0)
[ 3.774698] [<c00230d0>] (do_group_exit) from [<c002b734>] (get_signal+0x1dc/0x57c)
[ 3.782333] [<c002b734>] (get_signal) from [<c0411d70>] (do_signal+0x84/0x3a4)
[ 3.789537] [<c0411d70>] (do_signal) from [<c001093c>] (do_work_pending+0x84/0xc4)
[ 3.797089] [<c001093c>] (do_work_pending) from [<c000e660>] (work_pending+0xc/0x20)
[ 3.804812] ---[ end Kernel panic - not syncing: Attempted to kill init! exitcode=0x00000007
Signed-off-by: Krzysztof Kozlowski <k.kozlowski@...sung.com>
Fixes: 5a867cf28893 ("regulator: s2mps11: Optimize the regulator description macro")
Cc: <stable@...r.kernel.org>
---
drivers/regulator/s2mps11.c | 19 ++++++++++++-------
1 file changed, 12 insertions(+), 7 deletions(-)
diff --git a/drivers/regulator/s2mps11.c b/drivers/regulator/s2mps11.c
index c1444c3d84c2..9051ce6629d3 100644
--- a/drivers/regulator/s2mps11.c
+++ b/drivers/regulator/s2mps11.c
@@ -570,7 +570,7 @@ static struct regulator_ops s2mps14_reg_ops = {
.enable_mask = S2MPS14_ENABLE_MASK \
}
-#define regulator_desc_s2mps14_buck(num, min, step) { \
+#define regulator_desc_s2mps14_buck(num, min, step, min_sel) { \
.name = "BUCK"#num, \
.id = S2MPS14_BUCK##num, \
.ops = &s2mps14_reg_ops, \
@@ -579,7 +579,7 @@ static struct regulator_ops s2mps14_reg_ops = {
.min_uV = min, \
.uV_step = step, \
.n_voltages = S2MPS14_BUCK_N_VOLTAGES, \
- .linear_min_sel = S2MPS14_BUCK1235_START_SEL, \
+ .linear_min_sel = min_sel, \
.ramp_delay = S2MPS14_BUCK_RAMP_DELAY, \
.vsel_reg = S2MPS14_REG_B1CTRL2 + (num - 1) * 2, \
.vsel_mask = S2MPS14_BUCK_VSEL_MASK, \
@@ -613,11 +613,16 @@ static const struct regulator_desc s2mps14_regulators[] = {
regulator_desc_s2mps14_ldo(23, MIN_800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(24, MIN_1800_MV, STEP_25_MV),
regulator_desc_s2mps14_ldo(25, MIN_1800_MV, STEP_25_MV),
- regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV),
- regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV),
- regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV),
- regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV),
- regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV),
+ regulator_desc_s2mps14_buck(1, MIN_600_MV, STEP_6_25_MV,
+ S2MPS14_BUCK1235_START_SEL),
+ regulator_desc_s2mps14_buck(2, MIN_600_MV, STEP_6_25_MV,
+ S2MPS14_BUCK1235_START_SEL),
+ regulator_desc_s2mps14_buck(3, MIN_600_MV, STEP_6_25_MV,
+ S2MPS14_BUCK1235_START_SEL),
+ regulator_desc_s2mps14_buck(4, MIN_1400_MV, STEP_12_5_MV,
+ S2MPS14_BUCK4_START_SEL),
+ regulator_desc_s2mps14_buck(5, MIN_600_MV, STEP_6_25_MV,
+ S2MPS14_BUCK1235_START_SEL),
};
static int s2mps14_pmic_enable_ext_control(struct s2mps11_info *s2mps11,
--
1.9.1
--
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