diff mbox series

[7/9] regulator: mt6358: Add missing regulators for MT6366

Message ID 20230803074249.3065586-8-wenst@chromium.org
State New
Headers
Series regulator: mt6366: Split out of MT6358 and cleanup |

Commit Message

Chen-Yu Tsai Aug. 3, 2023, 7:42 a.m. UTC 
  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>
---
 drivers/regulator/mt6358-regulator.c       | 20 ++++++++++++++++++++
 include/linux/regulator/mt6358-regulator.h |  3 +++
 2 files changed, 23 insertions(+)

Comments

AngeloGioacchino Del Regno Aug. 3, 2023, 9:01 a.m. UTC | #1 
Il 03/08/23 09:42, Chen-Yu Tsai ha scritto:
> 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>

VM18/VMDDR: not used in kernel, but even though writing a new vsel is something
to completely avoid (on said devices), we can still read the voltage, which may
be good for particular debugging usecases, so...

Reviewed-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
diff mbox series

Patch

diff --git a/drivers/regulator/mt6358-regulator.c b/drivers/regulator/mt6358-regulator.c
index f8cdfa992c23..c9fd5904d13f 100644
--- a/drivers/regulator/mt6358-regulator.c
+++ b/drivers/regulator/mt6358-regulator.c
@@ -324,6 +324,20 @@  static const struct linear_range vldo28_ranges[] = {
 	REGULATOR_LINEAR_RANGE(3000000, 11, 21, 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, 11, 21, 10000),
+	REGULATOR_LINEAR_RANGE(800000, 22, 32, 10000),
+	REGULATOR_LINEAR_RANGE(900000, 33, 43, 10000),
+	REGULATOR_LINEAR_RANGE(1000000, 44, 54, 10000),
+	REGULATOR_LINEAR_RANGE(1100000, 55, 65, 10000),
+	REGULATOR_LINEAR_RANGE(1200000, 66, 76, 10000),
+	REGULATOR_LINEAR_RANGE(1300000, 77, 87, 10000),
+	REGULATOR_LINEAR_RANGE(1500000, 88, 98, 10000),
+	REGULATOR_LINEAR_RANGE(1800000, 99, 109, 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[] = {
@@ -613,6 +627,10 @@  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,
@@ -621,6 +639,8 @@  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/regulator/mt6358-regulator.h b/include/linux/regulator/mt6358-regulator.h
index c71a6a9fce7a..562386f9b80e 100644
--- 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,
 };