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authorLinus Torvalds <torvalds@linux-foundation.org>2024-05-22 10:41:14 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2024-05-22 10:41:14 -0700
commita85629f435a4e724c414a6ae3e2f327272ab11af (patch)
treecc6279ca271f27e55b11a12860cd14cbfc9f15a5 /drivers/misc
parent0bfbc914d9433d8ac2763a9ce99ce7721ee5c8e0 (diff)
parent1482489b5196f4203576ae1dc2ba4ce3ada381c7 (diff)
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Merge tag 'mfd-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd
Pull MFD updates from Lee Jones: "New Device Support: - Add support for X-Powers AXP717 PMIC to AXP22X - Add support for Rockchip RK816 PMIC to RK8XX - Add support for TI TPS65224 PMIC to TPS6594 New Functionality: - Add Power Off functionality to Rohm BD71828 - Allow I2C SMBus access in Renesas RSMU Fix-ups: - Device Tree binding adaptions/conversions/creation - Shift Intel support over to MSI interrupts - Generify adding platform data away from being ACPI specific - Use device core supplied attribute to register sysfs entries - Replace hand-rolled functionality with generic APIs - Utilise centrally provided helpers and macros - Clean-up error handling - Remove superfluous/duplicated/unused sections - Trivial; spelling, whitespace, coding-style adaptions - More Maple Tree conversions" * tag 'mfd-next-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/lee/mfd: (44 commits) dt-bindings: mfd: Use full path to other schemas mfd: rsmu: support I2C SMBus access dt-bindings: mfd: Convert lp873x.txt to json-schema dt-bindings: mfd: aspeed: Drop 'oneOf' for pinctrl node dt-bindings: mfd: allwinner,sun6i-a31-prcm: Use hyphens in node names mfd: ssbi: Remove unused field 'slave' from 'struct ssbi' mfd: kempld: Remove custom DMI matching code mfd: cs42l43: Update patching revision check dt-bindings: mfd: qcom: pm8xxx: Add pm8901 compatible mfd: timberdale: Remove redundant assignment to variable err dt-bindings: mfd: qcom,spmi-pmic: Add pbs to SPMI device types dt-bindings: mfd: syscon: Add ti,am62p-cpsw-mac-efuse compatible dt-bindings: mfd: qcom,tcsr: Add compatible for SDX75 mfd: axp20x: Convert to use Maple Tree register cache mfd: bd71828: Remove commented code lines mfd: intel-m10-bmc: Change staging size to a variable dt-bindings: mfd: Add ROHM BD71879 mfd: Tidy Kconfig dependency's parentheses mfd: ocelot-spi: Use spi_sync_transfer() dt-bindings: mfd: syscon: Add missing simple syscon compatibles ...
Diffstat (limited to 'drivers/misc')
-rw-r--r--drivers/misc/tps6594-pfsm.c48
1 files changed, 35 insertions, 13 deletions
diff --git a/drivers/misc/tps6594-pfsm.c b/drivers/misc/tps6594-pfsm.c
index 88dcac814892..9bcca1856bfe 100644
--- a/drivers/misc/tps6594-pfsm.c
+++ b/drivers/misc/tps6594-pfsm.c
@@ -1,6 +1,6 @@
// SPDX-License-Identifier: GPL-2.0
/*
- * PFSM (Pre-configurable Finite State Machine) driver for TI TPS6594/TPS6593/LP8764 PMICs
+ * PFSM (Pre-configurable Finite State Machine) driver for TI TPS65224/TPS6594/TPS6593/LP8764 PMICs
*
* Copyright (C) 2023 BayLibre Incorporated - https://www.baylibre.com/
*/
@@ -39,10 +39,12 @@
*
* @miscdev: misc device infos
* @regmap: regmap for accessing the device registers
+ * @chip_id: chip identifier of the device
*/
struct tps6594_pfsm {
struct miscdevice miscdev;
struct regmap *regmap;
+ unsigned long chip_id;
};
static ssize_t tps6594_pfsm_read(struct file *f, char __user *buf,
@@ -133,21 +135,29 @@ static long tps6594_pfsm_ioctl(struct file *f, unsigned int cmd, unsigned long a
struct tps6594_pfsm *pfsm = TPS6594_FILE_TO_PFSM(f);
struct pmic_state_opt state_opt;
void __user *argp = (void __user *)arg;
+ unsigned int regmap_reg, mask;
int ret = -ENOIOCTLCMD;
switch (cmd) {
case PMIC_GOTO_STANDBY:
- /* Disable LP mode */
- ret = regmap_clear_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
- TPS6594_BIT_LP_STANDBY_SEL);
- if (ret)
- return ret;
+ /* Disable LP mode on TPS6594 Family PMIC */
+ if (pfsm->chip_id != TPS65224) {
+ ret = regmap_clear_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
+ TPS6594_BIT_LP_STANDBY_SEL);
+
+ if (ret)
+ return ret;
+ }
/* Force trigger */
ret = regmap_write_bits(pfsm->regmap, TPS6594_REG_FSM_I2C_TRIGGERS,
TPS6594_BIT_TRIGGER_I2C(0), TPS6594_BIT_TRIGGER_I2C(0));
break;
case PMIC_GOTO_LP_STANDBY:
+ /* TPS65224 does not support LP STANDBY */
+ if (pfsm->chip_id == TPS65224)
+ return ret;
+
/* Enable LP mode */
ret = regmap_set_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
TPS6594_BIT_LP_STANDBY_SEL);
@@ -169,6 +179,10 @@ static long tps6594_pfsm_ioctl(struct file *f, unsigned int cmd, unsigned long a
TPS6594_BIT_NSLEEP1B | TPS6594_BIT_NSLEEP2B);
break;
case PMIC_SET_MCU_ONLY_STATE:
+ /* TPS65224 does not support MCU_ONLY_STATE */
+ if (pfsm->chip_id == TPS65224)
+ return ret;
+
if (copy_from_user(&state_opt, argp, sizeof(state_opt)))
return -EFAULT;
@@ -192,14 +206,20 @@ static long tps6594_pfsm_ioctl(struct file *f, unsigned int cmd, unsigned long a
return -EFAULT;
/* Configure wake-up destination */
+ if (pfsm->chip_id == TPS65224) {
+ regmap_reg = TPS65224_REG_STARTUP_CTRL;
+ mask = TPS65224_MASK_STARTUP_DEST;
+ } else {
+ regmap_reg = TPS6594_REG_RTC_CTRL_2;
+ mask = TPS6594_MASK_STARTUP_DEST;
+ }
+
if (state_opt.mcu_only_startup_dest)
- ret = regmap_write_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
- TPS6594_MASK_STARTUP_DEST,
- TPS6594_STARTUP_DEST_MCU_ONLY);
+ ret = regmap_write_bits(pfsm->regmap, regmap_reg,
+ mask, TPS6594_STARTUP_DEST_MCU_ONLY);
else
- ret = regmap_write_bits(pfsm->regmap, TPS6594_REG_RTC_CTRL_2,
- TPS6594_MASK_STARTUP_DEST,
- TPS6594_STARTUP_DEST_ACTIVE);
+ ret = regmap_write_bits(pfsm->regmap, regmap_reg,
+ mask, TPS6594_STARTUP_DEST_ACTIVE);
if (ret)
return ret;
@@ -211,7 +231,8 @@ static long tps6594_pfsm_ioctl(struct file *f, unsigned int cmd, unsigned long a
/* Modify NSLEEP1-2 bits */
ret = regmap_clear_bits(pfsm->regmap, TPS6594_REG_FSM_NSLEEP_TRIGGERS,
- TPS6594_BIT_NSLEEP2B);
+ pfsm->chip_id == TPS65224 ?
+ TPS6594_BIT_NSLEEP1B : TPS6594_BIT_NSLEEP2B);
break;
}
@@ -262,6 +283,7 @@ static int tps6594_pfsm_probe(struct platform_device *pdev)
tps->chip_id, tps->reg);
pfsm->miscdev.fops = &tps6594_pfsm_fops;
pfsm->miscdev.parent = dev->parent;
+ pfsm->chip_id = tps->chip_id;
for (i = 0 ; i < pdev->num_resources ; i++) {
irq = platform_get_irq_byname(pdev, pdev->resource[i].name);