[PATCH 0/2] i2c: i2c-mt65xx: add support for MT7981

[PATCH 0/2] i2c: i2c-mt65xx: add support for MT7981

[Daniel Golle]

Add support for the I2C units found in the MT7981 SoC.

Daniel Golle (2):
  i2c: mediatek: add support for MT7981 SoC
  dt-bindings: i2c: i2c-mt65xx: add binding for MT7981 SoC

 .../devicetree/bindings/i2c/i2c-mt65xx.yaml         |  1 +
 drivers/i2c/busses/i2c-mt65xx.c                     | 13 +++++++++++++
 2 files changed, 14 insertions(+)


base-commit: 24469a0e5052ba01a35a15f104717a82b7a4798b
-- 
2.39.2


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[PATCH 0/2] i2c: i2c-mt65xx: add support for MT7981

[Daniel Golle]

Add support for the I2C units found in the MediaTek MT7981 and MT7988
SoCs. Just like other recent MediaTek I2C units that also uses v3
register offsets (which differ from v2 only by OFFSET_SLAVE_ADDR being
0x94 instead of 0x4).

Corresponding patch in MediaTek's SDK:
https://git01.mediatek.com/plugins/gitiles/openwrt/feeds/mtk-openwrt-feeds/+/472dc5cf11d4359cb3e3f80577dba22df0696e43/target/linux/mediatek/patches-5.4/0901-i2c-busses-add-mt7981-support.patch

Changes since v1:
 * add missing commit description
 * add link to patch in MediaTek's SDK to cover letter

Daniel Golle (2):
  i2c: mediatek: add support for MT7981 SoC
  dt-bindings: i2c: i2c-mt65xx: add binding for MT7981 SoC

 .../devicetree/bindings/i2c/i2c-mt65xx.yaml         |  1 +
 drivers/i2c/busses/i2c-mt65xx.c                     | 13 +++++++++++++
 2 files changed, 14 insertions(+)


base-commit: e134c93f788fb93fd6a3ec3af9af850a2048c7e6
-- 
2.40.0


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[PATCH 1/2] i2c: mediatek: add support for MT7981 SoC

[Daniel Golle]

Add support for the I2C units found in the MediaTek MT7981 and MT7988
SoCs. Just like other recent MediaTek I2C units that also uses v3
register offsets (which differ from v2 only by OFFSET_SLAVE_ADDR being
0x94 instead of 0x4).

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 drivers/i2c/busses/i2c-mt65xx.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/i2c/busses/i2c-mt65xx.c b/drivers/i2c/busses/i2c-mt65xx.c
index 59eaefe999b11..a43c4d77739ab 100644
--- a/drivers/i2c/busses/i2c-mt65xx.c
+++ b/drivers/i2c/busses/i2c-mt65xx.c
@@ -431,6 +431,18 @@ static const struct mtk_i2c_compatible mt8168_compat = {
 	.max_dma_support = 33,
 };
 
+static const struct mtk_i2c_compatible mt7981_compat = {
+	.regs = mt_i2c_regs_v3,
+	.pmic_i2c = 0,
+	.dcm = 0,
+	.auto_restart = 1,
+	.aux_len_reg = 1,
+	.timing_adjust = 1,
+	.dma_sync = 1,
+	.ltiming_adjust = 1,
+	.max_dma_support = 33
+};
+
 static const struct mtk_i2c_compatible mt7986_compat = {
 	.quirks = &mt7622_i2c_quirks,
 	.regs = mt_i2c_regs_v1,
@@ -516,6 +528,7 @@ static const struct of_device_id mtk_i2c_of_match[] = {
 	{ .compatible = "mediatek,mt6577-i2c", .data = &mt6577_compat },
 	{ .compatible = "mediatek,mt6589-i2c", .data = &mt6589_compat },
 	{ .compatible = "mediatek,mt7622-i2c", .data = &mt7622_compat },
+	{ .compatible = "mediatek,mt7981-i2c", .data = &mt7981_compat },
 	{ .compatible = "mediatek,mt7986-i2c", .data = &mt7986_compat },
 	{ .compatible = "mediatek,mt8168-i2c", .data = &mt8168_compat },
 	{ .compatible = "mediatek,mt8173-i2c", .data = &mt8173_compat },
-- 
2.40.0


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[PATCH 2/2] dt-bindings: i2c: i2c-mt65xx: add binding for MT7981 SoC

[Daniel Golle]

Add binding documentation for the I2C controllers found in the
MediaTek MT7981 SoC.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
---
 Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml | 1 +
 1 file changed, 1 insertion(+)

diff --git a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
index 685da4df688d6..fda0467cdd954 100644
--- a/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
+++ b/Documentation/devicetree/bindings/i2c/i2c-mt65xx.yaml
@@ -23,6 +23,7 @@ properties:
       - const: mediatek,mt6577-i2c
       - const: mediatek,mt6589-i2c
       - const: mediatek,mt7622-i2c
+      - const: mediatek,mt7981-i2c
       - const: mediatek,mt7986-i2c
       - const: mediatek,mt8168-i2c
       - const: mediatek,mt8173-i2c
-- 
2.40.0


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Re: [PATCH 2/2] dt-bindings: i2c: i2c-mt65xx: add binding for MT7981 SoC

[Krzysztof Kozlowski]

On 06/04/2023 23:41, Daniel Golle wrote:
> Add binding documentation for the I2C controllers found in the
> MediaTek MT7981 SoC.

Subject: drop second/last, redundant "binding". The "dt-bindings" prefix
is already stating that these are bindings.

Bindings come before patches using them.

BTW, I did not get previous patch at all, but your cover letter suggests
these are compatible.

Best regards,
Krzysztof


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