[PATCH v3 0/2] i2c: i2c-mt65xx: add support for MT7981

[PATCH v3 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 commit 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 v2:
 * bindings come before patches using them
 * remove reduntant word 'bindings' from dt-bindings commit

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

Daniel Golle (2):
  dt-bindings: i2c: i2c-mt65xx: add MediaTek MT7981 SoC
  i2c: mediatek: add support 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 v3 1/2] dt-bindings: i2c: i2c-mt65xx: add MediaTek MT7981 SoC

[Daniel Golle]

Add compatible string 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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[PATCH v3 2/2] 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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Re: [PATCH v3 1/2] dt-bindings: i2c: i2c-mt65xx: add MediaTek MT7981 SoC

[Krzysztof Kozlowski]

On 10/04/2023 18:19, Daniel Golle wrote:
> Add compatible string for the I2C controllers found in the MediaTek
> MT7981 SoC.
> 
> Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

Best regards,
Krzysztof


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Re: [PATCH v3 2/2] i2c: mediatek: add support for MT7981 SoC

[AngeloGioacchino Del Regno]

Il 10/04/23 18:19, Daniel Golle ha scritto:
> 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>

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


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Re: [PATCH v3 1/2] dt-bindings: i2c: i2c-mt65xx: add MediaTek MT7981 SoC

[AngeloGioacchino Del Regno]

Il 10/04/23 18:19, Daniel Golle ha scritto:
> Add compatible string for the I2C controllers found in the MediaTek
> MT7981 SoC.
> 
> Signed-off-by: Daniel Golle <daniel@makrotopia.org>

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



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Re: [PATCH v3 2/2] i2c: mediatek: add support for MT7981 SoC

[Alexandre Mergnat]

On 10/04/2023 18:19, Daniel Golle wrote:
> 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).

Reviewed-by: Alexandre Mergnat <amergnat@baylibre.com>

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Re: [PATCH v3 1/2] dt-bindings: i2c: i2c-mt65xx: add MediaTek MT7981 SoC

[Wolfram Sang]

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On Mon, Apr 10, 2023 at 05:19:21PM +0100, Daniel Golle wrote:
> Add compatible string for the I2C controllers found in the MediaTek
> MT7981 SoC.
> 
> Signed-off-by: Daniel Golle <daniel@makrotopia.org>

Applied to for-next, thanks!


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Re: [PATCH v3 2/2] i2c: mediatek: add support for MT7981 SoC

[Wolfram Sang]

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On Mon, Apr 10, 2023 at 05:19:38PM +0100, Daniel Golle wrote:
> 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>

Applied to for-next, thanks!


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