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118 lines
3.9 KiB
Diff
118 lines
3.9 KiB
Diff
From 5295f4c122258a11fb6012b7e043248e681db5a2 Mon Sep 17 00:00:00 2001
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From: Claudiu Beznea <claudiu.beznea@microchip.com>
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Date: Fri, 13 Nov 2020 17:21:08 +0200
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Subject: [PATCH 124/247] regulator: mcp16502: adapt for get/set on other
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registers
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MCP16502 have multiple registers for each regulator (as described
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in enum mcp16502_reg). Adapt the code to be able to get/set all these
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registers. This is necessary for the following commits.
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Signed-off-by: Claudiu Beznea <claudiu.beznea@microchip.com>
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Link: https://lore.kernel.org/r/1605280870-32432-5-git-send-email-claudiu.beznea@microchip.com
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Signed-off-by: Mark Brown <broonie@kernel.org>
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---
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drivers/regulator/mcp16502.c | 43 ++++++++++++++++++++++--------------
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1 file changed, 27 insertions(+), 16 deletions(-)
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--- a/drivers/regulator/mcp16502.c
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+++ b/drivers/regulator/mcp16502.c
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@@ -54,13 +54,9 @@
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* This function is useful for iterating over all regulators and accessing their
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* registers in a generic way or accessing a regulator device by its id.
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*/
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-#define MCP16502_BASE(i) (((i) + 1) << 4)
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+#define MCP16502_REG_BASE(i, r) ((((i) + 1) << 4) + MCP16502_REG_##r)
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#define MCP16502_STAT_BASE(i) ((i) + 5)
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-#define MCP16502_OFFSET_MODE_A 0
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-#define MCP16502_OFFSET_MODE_LPM 1
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-#define MCP16502_OFFSET_MODE_HIB 2
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-
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#define MCP16502_OPMODE_ACTIVE REGULATOR_MODE_NORMAL
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#define MCP16502_OPMODE_LPM REGULATOR_MODE_IDLE
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#define MCP16502_OPMODE_HIB REGULATOR_MODE_STANDBY
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@@ -75,6 +71,23 @@
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#define MCP16502_MIN_REG 0x0
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#define MCP16502_MAX_REG 0x65
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+/**
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+ * enum mcp16502_reg - MCP16502 regulators's registers
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+ * @MCP16502_REG_A: active state register
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+ * @MCP16502_REG_LPM: low power mode state register
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+ * @MCP16502_REG_HIB: hibernate state register
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+ * @MCP16502_REG_SEQ: startup sequence register
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+ * @MCP16502_REG_CFG: configuration register
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+ */
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+enum mcp16502_reg {
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+ MCP16502_REG_A,
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+ MCP16502_REG_LPM,
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+ MCP16502_REG_HIB,
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+ MCP16502_REG_HPM,
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+ MCP16502_REG_SEQ,
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+ MCP16502_REG_CFG,
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+};
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+
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static unsigned int mcp16502_of_map_mode(unsigned int mode)
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{
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if (mode == REGULATOR_MODE_NORMAL || mode == REGULATOR_MODE_IDLE)
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@@ -144,22 +157,20 @@ static void mcp16502_gpio_set_mode(struc
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}
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/*
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- * mcp16502_get_reg() - get the PMIC's configuration register for opmode
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+ * mcp16502_get_reg() - get the PMIC's state configuration register for opmode
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*
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* @rdev: the regulator whose register we are searching
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* @opmode: the PMIC's operating mode ACTIVE, Low-power, Hibernate
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*/
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-static int mcp16502_get_reg(struct regulator_dev *rdev, int opmode)
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+static int mcp16502_get_state_reg(struct regulator_dev *rdev, int opmode)
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{
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- int reg = MCP16502_BASE(rdev_get_id(rdev));
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-
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switch (opmode) {
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case MCP16502_OPMODE_ACTIVE:
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- return reg + MCP16502_OFFSET_MODE_A;
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+ return MCP16502_REG_BASE(rdev_get_id(rdev), A);
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case MCP16502_OPMODE_LPM:
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- return reg + MCP16502_OFFSET_MODE_LPM;
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+ return MCP16502_REG_BASE(rdev_get_id(rdev), LPM);
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case MCP16502_OPMODE_HIB:
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- return reg + MCP16502_OFFSET_MODE_HIB;
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+ return MCP16502_REG_BASE(rdev_get_id(rdev), HIB);
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default:
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return -EINVAL;
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}
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@@ -179,7 +190,7 @@ static unsigned int mcp16502_get_mode(st
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unsigned int val;
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int ret, reg;
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- reg = mcp16502_get_reg(rdev, MCP16502_OPMODE_ACTIVE);
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+ reg = mcp16502_get_state_reg(rdev, MCP16502_OPMODE_ACTIVE);
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if (reg < 0)
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return reg;
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@@ -210,7 +221,7 @@ static int _mcp16502_set_mode(struct reg
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int val;
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int reg;
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- reg = mcp16502_get_reg(rdev, op_mode);
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+ reg = mcp16502_get_state_reg(rdev, op_mode);
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if (reg < 0)
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return reg;
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@@ -269,10 +280,10 @@ static int mcp16502_suspend_get_target_r
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{
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switch (pm_suspend_target_state) {
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case PM_SUSPEND_STANDBY:
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- return mcp16502_get_reg(rdev, MCP16502_OPMODE_LPM);
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+ return mcp16502_get_state_reg(rdev, MCP16502_OPMODE_LPM);
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case PM_SUSPEND_ON:
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case PM_SUSPEND_MEM:
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- return mcp16502_get_reg(rdev, MCP16502_OPMODE_HIB);
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+ return mcp16502_get_state_reg(rdev, MCP16502_OPMODE_HIB);
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default:
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dev_err(&rdev->dev, "invalid suspend target: %d\n",
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pm_suspend_target_state);
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