regulator: mt6358: Add missing regulators for MT6366

When support for the MT6366 PMIC regulators was added, it was assumed
that it had the same functionality as MT6358. In reality there are
differences. A few regulators have different ranges, or were renamed
and repurposed, or removed altogether.

Add the 3 regulators that were missing from the original submission.
These are added for completeness. VSRAM_CORE is not used in existing
projects. VM18 and VMDDR feed DRAM related consumers, and are not used
in-kernel.

Signed-off-by: Chen-Yu Tsai <wenst@chromium.org>
Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Acked-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230928085537.3246669-11-wenst@chromium.org
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c
index 9301491..54a4028 100644 (file)
--- a/drivers/regulator/mt6358-regulator.c
+++ b/drivers/regulator/mt6358-regulator.c
@@ -325,6 +325,20 @@ static const struct linear_range vldo28_ranges[] = {
        REGULATOR_LINEAR_RANGE(3000000, 0, 10, 10000),
 };
 
+static const unsigned int mt6366_vmddr_selectors[] = { 0, 1, 2, 3, 4, 5, 6, 7, 9, 12 };
+static const struct linear_range mt6366_vmddr_ranges[] = {
+       REGULATOR_LINEAR_RANGE(600000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(700000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(800000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(900000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(1000000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(1100000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(1200000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(1300000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(1500000, 0, 10, 10000),
+       REGULATOR_LINEAR_RANGE(1800000, 0, 10, 10000),
+};
+
 static const unsigned int mt6366_vcn18_vm18_selectors[] = {
        0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 };
 static const struct linear_range mt6366_vcn18_vm18_ranges[] = {
@@ -602,6 +616,10 @@ static const struct mt6358_regulator_info mt6366_regulators[] = {
                   MT6358_LDO_VSIM2_CON0, 0, MT6358_VSIM2_ANA_CON0, 0xf00),
        MT6366_LDO("vcn18", VCN18, mt6366_vcn18_vm18,
                   MT6358_LDO_VCN18_CON0, 0, MT6358_VCN18_ANA_CON0, 0xf00),
+       MT6366_LDO("vm18", VM18, mt6366_vcn18_vm18,
+                  MT6358_LDO_VM18_CON0, 0, MT6358_VM18_ANA_CON0, 0xf00),
+       MT6366_LDO("vmddr", VMDDR, mt6366_vmddr,
+                  MT6358_LDO_VMDDR_CON0, 0, MT6358_VMDDR_ANA_CON0, 0xf00),
        MT6366_LDO1("vsram-proc11", VSRAM_PROC11, 500000, 1293750, 6250,
                    MT6358_LDO_VSRAM_PROC11_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON0, 0x7f),
        MT6366_LDO1("vsram-others", VSRAM_OTHERS, 500000, 1293750, 6250,
@@ -610,6 +628,8 @@ static const struct mt6358_regulator_info mt6366_regulators[] = {
                    MT6358_LDO_VSRAM_GPU_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON3, 0x7f),
        MT6366_LDO1("vsram-proc12", VSRAM_PROC12, 500000, 1293750, 6250,
                    MT6358_LDO_VSRAM_PROC12_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON1, 0x7f),
+       MT6366_LDO1("vsram-core", VSRAM_CORE, 500000, 1293750, 6250,
+                   MT6358_LDO_VSRAM_CORE_DBG0, 0x7f00, MT6358_LDO_VSRAM_CON5, 0x7f),
 };
 
 static int mt6358_sync_vcn33_setting(struct device *dev)

diff --git a/include/linux/mfd/mt6358/registers.h b/include/linux/mfd/mt6358/registers.h
index 5ea2590..d83e872 100644 (file)
--- a/include/linux/mfd/mt6358/registers.h
+++ b/include/linux/mfd/mt6358/registers.h
@@ -294,4 +294,21 @@
 #define MT6358_AUD_TOP_INT_CON0               0x2228
 #define MT6358_AUD_TOP_INT_STATUS0            0x2234
 
+/*
+ * MT6366 has no VCAM*, but has other regulators in its place. The names
+ * keep the MT6358 prefix for ease of use in the regulator driver.
+ */
+#define MT6358_LDO_VSRAM_CON5                 0x1bf8
+#define MT6358_LDO_VM18_CON0                  MT6358_LDO_VCAMA1_CON0
+#define MT6358_LDO_VM18_CON1                  MT6358_LDO_VCAMA1_CON1
+#define MT6358_LDO_VM18_CON2                  MT6358_LDO_VCAMA1_CON2
+#define MT6358_LDO_VMDDR_CON0                 MT6358_LDO_VCAMA2_CON0
+#define MT6358_LDO_VMDDR_CON1                 MT6358_LDO_VCAMA2_CON1
+#define MT6358_LDO_VMDDR_CON2                 MT6358_LDO_VCAMA2_CON2
+#define MT6358_LDO_VSRAM_CORE_CON0            MT6358_LDO_VCAMD_CON0
+#define MT6358_LDO_VSRAM_CORE_DBG0            0x1cb6
+#define MT6358_LDO_VSRAM_CORE_DBG1            0x1cb8
+#define MT6358_VM18_ANA_CON0                  MT6358_VCAMA1_ANA_CON0
+#define MT6358_VMDDR_ANA_CON0                 MT6358_VCAMD_ANA_CON0
+
 #endif /* __MFD_MT6358_REGISTERS_H__ */

diff --git a/include/linux/regulator/mt6358-regulator.h b/include/linux/regulator/mt6358-regulator.h
index c71a6a9..562386f 100644 (file)
--- a/include/linux/regulator/mt6358-regulator.h
+++ b/include/linux/regulator/mt6358-regulator.h
@@ -86,6 +86,9 @@ enum {
        MT6366_ID_VMC,
        MT6366_ID_VAUD28,
        MT6366_ID_VSIM2,
+       MT6366_ID_VM18,
+       MT6366_ID_VMDDR,
+       MT6366_ID_VSRAM_CORE,
        MT6366_ID_RG_MAX,
 };