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17 commits

Author SHA1 Message Date
ChiYuan Huang
5f4f94e9f2 mfd: mt6360: Add bounds checking in Regmap read/write call-backs 
Fix the potential risk of OOB read if bank index is over the maximum.

Refer to the discussion list for the experiment result on mt6370.
https://lore.kernel.org/all/20220914013345.GA5802@cyhuang-hp-elitebook-840-g3.rt/
If not to check the bound, there is the same issue on mt6360.

Cc: stable@vger.kernel.org
Fixes: 3b0850440a (mfd: mt6360: Merge different sub-devices I2C read/write)
Signed-off-by: ChiYuan Huang <cy_huang@richtek.com>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/1664416817-31590-1-git-send-email-u0084500@gmail.com
 2022-12-07 13:28:08 +00:00
Fei Shao
84742a98a9 mfd: mt6360: Sort regulator resources 
Reorder the regulator resources.

Signed-off-by: Fei Shao <fshao@chromium.org>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-07-16 09:00:45 +01:00
Gene Chen
3b0850440a mfd: mt6360: Merge different sub-devices I2C read/write 
Merge different sub-devices I2C read/write functions into one Regmap,
because PMIC and LDO part need CRC bits for access protection.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:02 +01:00
Gene Chen
b042c085de mfd: mt6360: Merge header file into driver and remove unuse register define 
Merge header file into driver and remove unuse register define

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:02 +01:00
Gene Chen
e847029406 mfd: mt6360: Fix flow which is used to check ic exist 
Fix flow which is used to check ic exist.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:02 +01:00
Gene Chen
a75a2d56dc mfd: mt6360: Remove handle_post_irq callback function 
Remove handle_post_irq which is used to retrigger IRQ.
Set IRQ level low trigger in dtsi to keep IRQ always be handled.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:02 +01:00
Gene Chen
60a90b3579 mfd: mt6360: Rename mt6360_pmu by mt6360 
Rename mt6360_pmu by mt6360, because of including
not only PMU part, but also entire MT6360 IC

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:01 +01:00
Gene Chen
e63ce9a5b3 mfd: mt6360: Rename mt6360_pmu_data by mt6360_ddata 
Rename mt6360_pmu_data by mt6360_ddata because of including
not only PMU part, but also entire MT6360 IC.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:01 +01:00
Gene Chen
4ee06e10dd mfd: mt6360: Combine mt6360 pmic/ldo resources into mt6360 regulator resources 
Combine mt6360 pmic/ldo resources into mt6360 regulator resources
to simplify the similar resources object.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:01 +01:00
Gene Chen
12f3f13194 mfd: mt6360: Indicate sub-dev compatible name by using "-" 
Indicate sub-dev compatible name by using "-".

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:01 +01:00
Gene Chen
50e89312e3 mfd: mt6360: Remove redundant brackets around raw numbers 
Remove redundant brackets around raw numbers.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:01 +01:00
Gene Chen
137871bce2 mfd: mt6360: Rearrange include file 
Rearrange include file without sorting by alphabet.

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-06-02 10:50:01 +01:00
Lee Jones
db783e769a mfd: Standardise MFD_CELL_* helper names 
Start all helpers with "MFD_CELL_".

Cc: Gene Chen <gene_chen@richtek.com>
Cc: linux-mediatek@lists.infradead.org
Signed-off-by: Lee Jones <lee.jones@linaro.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2021-02-08 13:54:12 +00:00
YueHaibing
d38eac2991 mfd: mt6360: Remove unused include <linux/version.h> 
This file does not make use of it.

Reported-by: Hulk Robot <hulkci@huawei.com>
Signed-off-by: YueHaibing <yuehaibing@huawei.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2020-09-30 16:25:22 +01:00
Gene Chen
bf6b694a6a mfd: mt6360: Fix register driver NULL pointer by adding driver name 
The driver name was accidentally removed when .probe() by was replaced
by .probe_new() during an early patch review.

[  121.243012] EAX: c2a8bc64 EBX: 00000000 ECX: 00000000 EDX: 00000000
[  121.243012] ESI: c2a8bc79 EDI: 00000000 EBP: e54bdea8 ESP: e54bdea0
[  121.243012] DS: 007b ES: 007b FS: 0000 GS: 0000 SS: 0068 EFLAGS: 00010286
[  121.243012] CR0: 80050033 CR2: 00000000 CR3: 02ec3000 CR4: 000006b0
[  121.243012] Call Trace:
[  121.243012]  kset_find_obj+0x3d/0xc0
[  121.243012]  driver_find+0x16/0x40
[  121.243012]  driver_register+0x49/0x100
[  121.243012]  ? i2c_for_each_dev+0x39/0x50
[  121.243012]  ? __process_new_adapter+0x20/0x20
[  121.243012]  ? cht_wc_driver_init+0x11/0x11
[  121.243012]  i2c_register_driver+0x30/0x80
[  121.243012]  ? intel_lpss_pci_driver_init+0x16/0x16
[  121.243012]  mt6360_pmu_driver_init+0xf/0x11
[  121.243012]  do_one_initcall+0x33/0x1a0
[  121.243012]  ? parse_args+0x1eb/0x3d0
[  121.243012]  ? __might_sleep+0x31/0x90
[  121.243012]  ? kernel_init_freeable+0x10a/0x17f
[  121.243012]  kernel_init_freeable+0x12c/0x17f
[  121.243012]  ? rest_init+0x110/0x110
[  121.243012]  kernel_init+0xb/0x100
[  121.243012]  ? schedule_tail_wrapper+0x9/0xc
[  121.243012]  ret_from_fork+0x19/0x24
[  121.243012] Modules linked in:
[  121.243012] CR2: 0000000000000000
[  121.243012] random: get_random_bytes called from init_oops_id+0x3a/0x40 with crng_init=0
[  121.243012] ---[ end trace 38a803400f1a2bee ]---
[  121.243012] EIP: strcmp+0x11/0x30

Fixes: 7edd363421 ("mfd: Add support for PMIC MT6360")
Signed-off-by: Gene Chen <gene_chen@richtek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@kernel.org>
[Lee: Taking the opportunity to fix the compatible string too 's/_/-/']
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2020-06-16 09:32:43 +01:00
Lee Jones
098c4adf24 mfd: mt6360: Remove duplicate REGMAP_IRQ_REG_LINE() entry 
Fixes the following build warning:

  >> drivers/mfd/mt6360-core.c:148:2: warning: initializer overrides prior initialization of this subobject [-Winitializer-overrides]
  REGMAP_IRQ_REG_LINE(MT6360_CHG_TREG_EVT, 8),
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  include/linux/regmap.h:1191:10: note: expanded from macro 'REGMAP_IRQ_REG_LINE'
  [_id] = {                                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  drivers/mfd/mt6360-core.c:124:2: note: previous initialization is here
  REGMAP_IRQ_REG_LINE(MT6360_CHG_TREG_EVT, 8),
  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  include/linux/regmap.h:1191:10: note: expanded from macro 'REGMAP_IRQ_REG_LINE'
  [_id] = {                                                  ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
  1 warning generated.

Reported-by: kbuild test robot <lkp@intel.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2020-06-01 08:56:44 +01:00
Gene Chen
7edd363421 mfd: Add support for PMIC MT6360 
Add MFD driver for mt6360 pmic chip include Battery Charger/
USB_PD/Flash, LED/RGB and LED/LDO/Buck

Signed-off-by: Gene Chen <gene_chen@richtek.com>
Signed-off-by: Lee Jones <lee.jones@linaro.org>
 2020-05-27 07:46:18 +01:00