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Diffstat (limited to 'sound/soc/codecs/cs35l41-lib.c')
-rw-r--r--sound/soc/codecs/cs35l41-lib.c190
1 files changed, 181 insertions, 9 deletions
diff --git a/sound/soc/codecs/cs35l41-lib.c b/sound/soc/codecs/cs35l41-lib.c
index e5a56bcbb223..491616c7c5c7 100644
--- a/sound/soc/codecs/cs35l41-lib.c
+++ b/sound/soc/codecs/cs35l41-lib.c
@@ -954,9 +954,8 @@ static const unsigned char cs35l41_bst_slope_table[4] = {
0x75, 0x6B, 0x3B, 0x28
};
-
-int cs35l41_boost_config(struct device *dev, struct regmap *regmap, int boost_ind, int boost_cap,
- int boost_ipk)
+static int cs35l41_boost_config(struct device *dev, struct regmap *regmap, int boost_ind,
+ int boost_cap, int boost_ipk)
{
unsigned char bst_lbst_val, bst_cbst_range, bst_ipk_scaled;
int ret;
@@ -992,10 +991,20 @@ int cs35l41_boost_config(struct device *dev, struct regmap *regmap, int boost_in
case 101 ... 200:
bst_cbst_range = 3;
break;
- default: /* 201 uF and greater */
+ default:
+ if (boost_cap < 0) {
+ dev_err(dev, "Invalid boost capacitor value: %d nH\n", boost_cap);
+ return -EINVAL;
+ }
+ /* 201 uF and greater */
bst_cbst_range = 4;
}
+ if (boost_ipk < 1600 || boost_ipk > 4500) {
+ dev_err(dev, "Invalid boost inductor peak current: %d mA\n", boost_ipk);
+ return -EINVAL;
+ }
+
ret = regmap_update_bits(regmap, CS35L41_BSTCVRT_COEFF,
CS35L41_BST_K1_MASK | CS35L41_BST_K2_MASK,
cs35l41_bst_k1_table[bst_lbst_val][bst_cbst_range]
@@ -1017,10 +1026,6 @@ int cs35l41_boost_config(struct device *dev, struct regmap *regmap, int boost_in
return ret;
}
- if (boost_ipk < 1600 || boost_ipk > 4500) {
- dev_err(dev, "Invalid boost inductor peak current: %d mA\n", boost_ipk);
- return -EINVAL;
- }
bst_ipk_scaled = ((boost_ipk - 1600) / 50) + 0x10;
ret = regmap_update_bits(regmap, CS35L41_BSTCVRT_PEAK_CUR, CS35L41_BST_IPK_MASK,
@@ -1030,9 +1035,176 @@ int cs35l41_boost_config(struct device *dev, struct regmap *regmap, int boost_in
return ret;
}
+ regmap_update_bits(regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK,
+ CS35L41_BST_EN_DEFAULT << CS35L41_BST_EN_SHIFT);
+
return 0;
}
-EXPORT_SYMBOL_GPL(cs35l41_boost_config);
+
+static const struct reg_sequence cs35l41_safe_to_reset[] = {
+ { 0x00000040, 0x00000055 },
+ { 0x00000040, 0x000000AA },
+ { 0x0000393C, 0x000000C0, 6000},
+ { 0x0000393C, 0x00000000 },
+ { 0x00007414, 0x00C82222 },
+ { 0x0000742C, 0x00000000 },
+ { 0x00000040, 0x000000CC },
+ { 0x00000040, 0x00000033 },
+};
+
+static const struct reg_sequence cs35l41_active_to_safe[] = {
+ { 0x00000040, 0x00000055 },
+ { 0x00000040, 0x000000AA },
+ { 0x00007438, 0x00585941 },
+ { CS35L41_PWR_CTRL1, 0x00000000 },
+ { 0x0000742C, 0x00000009, 3000 },
+ { 0x00007438, 0x00580941 },
+ { 0x00000040, 0x000000CC },
+ { 0x00000040, 0x00000033 },
+};
+
+static const struct reg_sequence cs35l41_safe_to_active[] = {
+ { 0x00000040, 0x00000055 },
+ { 0x00000040, 0x000000AA },
+ { 0x0000742C, 0x0000000F },
+ { 0x0000742C, 0x00000079 },
+ { 0x00007438, 0x00585941 },
+ { CS35L41_PWR_CTRL1, 0x00000001, 3000 }, // GLOBAL_EN = 1
+ { 0x0000742C, 0x000000F9 },
+ { 0x00007438, 0x00580941 },
+ { 0x00000040, 0x000000CC },
+ { 0x00000040, 0x00000033 },
+};
+
+static const struct reg_sequence cs35l41_reset_to_safe[] = {
+ { 0x00000040, 0x00000055 },
+ { 0x00000040, 0x000000AA },
+ { 0x00007438, 0x00585941 },
+ { 0x00007414, 0x08C82222 },
+ { 0x0000742C, 0x00000009 },
+ { 0x00000040, 0x000000CC },
+ { 0x00000040, 0x00000033 },
+};
+
+int cs35l41_init_boost(struct device *dev, struct regmap *regmap,
+ struct cs35l41_hw_cfg *hw_cfg)
+{
+ int ret;
+
+ switch (hw_cfg->bst_type) {
+ case CS35L41_INT_BOOST:
+ ret = cs35l41_boost_config(dev, regmap, hw_cfg->bst_ind,
+ hw_cfg->bst_cap, hw_cfg->bst_ipk);
+ if (ret)
+ dev_err(dev, "Error in Boost DT config: %d\n", ret);
+ break;
+ case CS35L41_EXT_BOOST:
+ case CS35L41_EXT_BOOST_NO_VSPK_SWITCH:
+ /* Only CLSA0100 doesn't use GPIO as VSPK switch, but even on that laptop we can
+ * toggle GPIO1 as is not connected to anything.
+ * There will be no other device without VSPK switch.
+ */
+ regmap_write(regmap, CS35L41_GPIO1_CTRL1, 0x00000001);
+ regmap_multi_reg_write(regmap, cs35l41_reset_to_safe,
+ ARRAY_SIZE(cs35l41_reset_to_safe));
+ ret = regmap_update_bits(regmap, CS35L41_PWR_CTRL2, CS35L41_BST_EN_MASK,
+ CS35L41_BST_DIS_FET_OFF << CS35L41_BST_EN_SHIFT);
+ break;
+ default:
+ dev_err(dev, "Boost type %d not supported\n", hw_cfg->bst_type);
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cs35l41_init_boost);
+
+bool cs35l41_safe_reset(struct regmap *regmap, enum cs35l41_boost_type b_type)
+{
+ switch (b_type) {
+ /* There is only one laptop that doesn't have VSPK switch. */
+ case CS35L41_EXT_BOOST_NO_VSPK_SWITCH:
+ return false;
+ case CS35L41_EXT_BOOST:
+ regmap_write(regmap, CS35L41_GPIO1_CTRL1, 0x00000001);
+ regmap_multi_reg_write(regmap, cs35l41_safe_to_reset,
+ ARRAY_SIZE(cs35l41_safe_to_reset));
+ return true;
+ default:
+ return true;
+ }
+}
+EXPORT_SYMBOL_GPL(cs35l41_safe_reset);
+
+int cs35l41_global_enable(struct regmap *regmap, enum cs35l41_boost_type b_type, int enable)
+{
+ int ret;
+
+ switch (b_type) {
+ case CS35L41_INT_BOOST:
+ ret = regmap_update_bits(regmap, CS35L41_PWR_CTRL1, CS35L41_GLOBAL_EN_MASK,
+ enable << CS35L41_GLOBAL_EN_SHIFT);
+ usleep_range(3000, 3100);
+ break;
+ case CS35L41_EXT_BOOST:
+ case CS35L41_EXT_BOOST_NO_VSPK_SWITCH:
+ if (enable)
+ ret = regmap_multi_reg_write(regmap, cs35l41_safe_to_active,
+ ARRAY_SIZE(cs35l41_safe_to_active));
+ else
+ ret = regmap_multi_reg_write(regmap, cs35l41_active_to_safe,
+ ARRAY_SIZE(cs35l41_active_to_safe));
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+EXPORT_SYMBOL_GPL(cs35l41_global_enable);
+
+int cs35l41_gpio_config(struct regmap *regmap, struct cs35l41_hw_cfg *hw_cfg)
+{
+ struct cs35l41_gpio_cfg *gpio1 = &hw_cfg->gpio1;
+ struct cs35l41_gpio_cfg *gpio2 = &hw_cfg->gpio2;
+ int irq_pol = IRQF_TRIGGER_NONE;
+
+ regmap_update_bits(regmap, CS35L41_GPIO1_CTRL1,
+ CS35L41_GPIO_POL_MASK | CS35L41_GPIO_DIR_MASK,
+ gpio1->pol_inv << CS35L41_GPIO_POL_SHIFT |
+ !gpio1->out_en << CS35L41_GPIO_DIR_SHIFT);
+
+ regmap_update_bits(regmap, CS35L41_GPIO2_CTRL1,
+ CS35L41_GPIO_POL_MASK | CS35L41_GPIO_DIR_MASK,
+ gpio2->pol_inv << CS35L41_GPIO_POL_SHIFT |
+ !gpio2->out_en << CS35L41_GPIO_DIR_SHIFT);
+
+ if (gpio1->valid)
+ regmap_update_bits(regmap, CS35L41_GPIO_PAD_CONTROL, CS35L41_GPIO1_CTRL_MASK,
+ gpio1->func << CS35L41_GPIO1_CTRL_SHIFT);
+
+ if (gpio2->valid) {
+ regmap_update_bits(regmap, CS35L41_GPIO_PAD_CONTROL, CS35L41_GPIO2_CTRL_MASK,
+ gpio2->func << CS35L41_GPIO2_CTRL_SHIFT);
+
+ switch (gpio2->func) {
+ case CS35L41_GPIO2_INT_PUSH_PULL_LOW:
+ case CS35L41_GPIO2_INT_OPEN_DRAIN:
+ irq_pol = IRQF_TRIGGER_LOW;
+ break;
+ case CS35L41_GPIO2_INT_PUSH_PULL_HIGH:
+ irq_pol = IRQF_TRIGGER_HIGH;
+ break;
+ default:
+ break;
+ }
+ }
+
+ return irq_pol;
+}
+EXPORT_SYMBOL_GPL(cs35l41_gpio_config);
MODULE_DESCRIPTION("CS35L41 library");
MODULE_AUTHOR("David Rhodes, Cirrus Logic Inc, <david.rhodes@cirrus.com>");
generated by cgit v1.2.3 (git 2.39.0) at 2024-07-25 14:36:58 +0300