[PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Daniel Palmer]

Hi Linus and Bartosz,

As suggested by Linus I have dropped the DTS commits that were
in the series to add a usage of this code to a target.
If possible can you take the first 4 commits for the GPIO driver
for me? The final DTS commit will go via our tree.

Original blurb:

This is a little series to add a compatible string for the Sigmastar
SSD201 and SSD202D to the msc313 gpio driver, add the specific offsets
for the pins on these chips.

Changes since v2:
  - No code changes, dropped the UnitV2 DTS bits.
    I'll send a new series for that later.

Changes since v1:
  - Add a fix for the led binding to squash the warning about the
    activity trigger in the unitv2 dts.
  - Fix up the regulator node names so they pass dtb check

Daniel Palmer (5):
  dt-bindings: gpio: msc313: Add compatible for ssd20xd
  dt-bindings: gpio: msc313: Add offsets for ssd20xd
  gpio: msc313: Code clean ups
  gpio: msc313: Add support for SSD201 and SSD202D
  ARM: dts: mstar: Set gpio compatible for ssd20xd

 .../bindings/gpio/mstar,msc313-gpio.yaml      |   4 +-
 .../boot/dts/mstar-infinity2m-ssd20xd.dtsi    |   5 +
 drivers/gpio/gpio-msc313.c                    | 266 +++++++++++++++++-
 include/dt-bindings/gpio/msc313-gpio.h        |  71 +++++
 4 files changed, 341 insertions(+), 5 deletions(-)

-- 
2.34.1

[PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Daniel Palmer]

Hi Linus and Bartosz,

As suggested by Linus I have dropped the DTS commits that were
in the series to add a usage of this code to a target.
If possible can you take the first 4 commits for the GPIO driver
for me? The final DTS commit will go via our tree.

Original blurb:

This is a little series to add a compatible string for the Sigmastar
SSD201 and SSD202D to the msc313 gpio driver, add the specific offsets
for the pins on these chips.

Changes since v2:
  - No code changes, dropped the UnitV2 DTS bits.
    I'll send a new series for that later.

Changes since v1:
  - Add a fix for the led binding to squash the warning about the
    activity trigger in the unitv2 dts.
  - Fix up the regulator node names so they pass dtb check

Daniel Palmer (5):
  dt-bindings: gpio: msc313: Add compatible for ssd20xd
  dt-bindings: gpio: msc313: Add offsets for ssd20xd
  gpio: msc313: Code clean ups
  gpio: msc313: Add support for SSD201 and SSD202D
  ARM: dts: mstar: Set gpio compatible for ssd20xd

 .../bindings/gpio/mstar,msc313-gpio.yaml      |   4 +-
 .../boot/dts/mstar-infinity2m-ssd20xd.dtsi    |   5 +
 drivers/gpio/gpio-msc313.c                    | 266 +++++++++++++++++-
 include/dt-bindings/gpio/msc313-gpio.h        |  71 +++++
 4 files changed, 341 insertions(+), 5 deletions(-)

-- 
2.34.1


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[PATCH v3 1/5] dt-bindings: gpio: msc313: Add compatible for ssd20xd

[Daniel Palmer]

Add a compatible string for "ssd20xd" for the SigmaStar SSD201
and SSD202D chips. These chips are the same die with different
memory bonded so they don't need their own strings.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml b/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
index fe1e1c63ffe3..18fe90387b87 100644
--- a/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
@@ -14,7 +14,9 @@ properties:
     pattern: "^gpio@[0-9a-f]+$"
 
   compatible:
-    const: mstar,msc313-gpio
+    enum:
+      - mstar,msc313-gpio
+      - sstar,ssd20xd-gpio
 
   reg:
     maxItems: 1
-- 
2.34.1


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[PATCH v3 1/5] dt-bindings: gpio: msc313: Add compatible for ssd20xd

[Daniel Palmer]

Add a compatible string for "ssd20xd" for the SigmaStar SSD201
and SSD202D chips. These chips are the same die with different
memory bonded so they don't need their own strings.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml b/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
index fe1e1c63ffe3..18fe90387b87 100644
--- a/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
+++ b/Documentation/devicetree/bindings/gpio/mstar,msc313-gpio.yaml
@@ -14,7 +14,9 @@ properties:
     pattern: "^gpio@[0-9a-f]+$"
 
   compatible:
-    const: mstar,msc313-gpio
+    enum:
+      - mstar,msc313-gpio
+      - sstar,ssd20xd-gpio
 
   reg:
     maxItems: 1
-- 
2.34.1

[PATCH v3 2/5] dt-bindings: gpio: msc313: Add offsets for ssd20xd

[Daniel Palmer]

Add the gpio offsets for the SSD201 and SSD202D chips.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/dt-bindings/gpio/msc313-gpio.h | 71 ++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/include/dt-bindings/gpio/msc313-gpio.h b/include/dt-bindings/gpio/msc313-gpio.h
index 2dd56683d3c1..5458c6580a02 100644
--- a/include/dt-bindings/gpio/msc313-gpio.h
+++ b/include/dt-bindings/gpio/msc313-gpio.h
@@ -50,4 +50,75 @@
 #define MSC313_GPIO_SPI0_DI	(MSC313_GPIO_SPI0 + 2)
 #define MSC313_GPIO_SPI0_DO	(MSC313_GPIO_SPI0 + 3)
 
+/* SSD20x */
+#define SSD20XD_GPIO_FUART	0
+#define SSD20XD_GPIO_FUART_RX	(SSD20XD_GPIO_FUART + 0)
+#define SSD20XD_GPIO_FUART_TX	(SSD20XD_GPIO_FUART + 1)
+#define SSD20XD_GPIO_FUART_CTS	(SSD20XD_GPIO_FUART + 2)
+#define SSD20XD_GPIO_FUART_RTS	(SSD20XD_GPIO_FUART + 3)
+
+#define SSD20XD_GPIO_SD		(SSD20XD_GPIO_FUART_RTS + 1)
+#define SSD20XD_GPIO_SD_CLK	(SSD20XD_GPIO_SD + 0)
+#define SSD20XD_GPIO_SD_CMD	(SSD20XD_GPIO_SD + 1)
+#define SSD20XD_GPIO_SD_D0	(SSD20XD_GPIO_SD + 2)
+#define SSD20XD_GPIO_SD_D1	(SSD20XD_GPIO_SD + 3)
+#define SSD20XD_GPIO_SD_D2	(SSD20XD_GPIO_SD + 4)
+#define SSD20XD_GPIO_SD_D3	(SSD20XD_GPIO_SD + 5)
+
+#define SSD20XD_GPIO_UART0	(SSD20XD_GPIO_SD_D3 + 1)
+#define SSD20XD_GPIO_UART0_RX	(SSD20XD_GPIO_UART0 + 0)
+#define SSD20XD_GPIO_UART0_TX	(SSD20XD_GPIO_UART0 + 1)
+
+#define SSD20XD_GPIO_UART1	(SSD20XD_GPIO_UART0_TX + 1)
+#define SSD20XD_GPIO_UART1_RX	(SSD20XD_GPIO_UART1 + 0)
+#define SSD20XD_GPIO_UART1_TX	(SSD20XD_GPIO_UART1 + 1)
+
+#define SSD20XD_GPIO_TTL	(SSD20XD_GPIO_UART1_TX + 1)
+#define SSD20XD_GPIO_TTL0	(SSD20XD_GPIO_TTL + 0)
+#define SSD20XD_GPIO_TTL1	(SSD20XD_GPIO_TTL + 1)
+#define SSD20XD_GPIO_TTL2	(SSD20XD_GPIO_TTL + 2)
+#define SSD20XD_GPIO_TTL3	(SSD20XD_GPIO_TTL + 3)
+#define SSD20XD_GPIO_TTL4	(SSD20XD_GPIO_TTL + 4)
+#define SSD20XD_GPIO_TTL5	(SSD20XD_GPIO_TTL + 5)
+#define SSD20XD_GPIO_TTL6	(SSD20XD_GPIO_TTL + 6)
+#define SSD20XD_GPIO_TTL7	(SSD20XD_GPIO_TTL + 7)
+#define SSD20XD_GPIO_TTL8	(SSD20XD_GPIO_TTL + 8)
+#define SSD20XD_GPIO_TTL9	(SSD20XD_GPIO_TTL + 9)
+#define SSD20XD_GPIO_TTL10	(SSD20XD_GPIO_TTL + 10)
+#define SSD20XD_GPIO_TTL11	(SSD20XD_GPIO_TTL + 11)
+#define SSD20XD_GPIO_TTL12	(SSD20XD_GPIO_TTL + 12)
+#define SSD20XD_GPIO_TTL13	(SSD20XD_GPIO_TTL + 13)
+#define SSD20XD_GPIO_TTL14	(SSD20XD_GPIO_TTL + 14)
+#define SSD20XD_GPIO_TTL15	(SSD20XD_GPIO_TTL + 15)
+#define SSD20XD_GPIO_TTL16	(SSD20XD_GPIO_TTL + 16)
+#define SSD20XD_GPIO_TTL17	(SSD20XD_GPIO_TTL + 17)
+#define SSD20XD_GPIO_TTL18	(SSD20XD_GPIO_TTL + 18)
+#define SSD20XD_GPIO_TTL19	(SSD20XD_GPIO_TTL + 19)
+#define SSD20XD_GPIO_TTL20	(SSD20XD_GPIO_TTL + 20)
+#define SSD20XD_GPIO_TTL21	(SSD20XD_GPIO_TTL + 21)
+#define SSD20XD_GPIO_TTL22	(SSD20XD_GPIO_TTL + 22)
+#define SSD20XD_GPIO_TTL23	(SSD20XD_GPIO_TTL + 23)
+#define SSD20XD_GPIO_TTL24	(SSD20XD_GPIO_TTL + 24)
+#define SSD20XD_GPIO_TTL25	(SSD20XD_GPIO_TTL + 25)
+#define SSD20XD_GPIO_TTL26	(SSD20XD_GPIO_TTL + 26)
+#define SSD20XD_GPIO_TTL27	(SSD20XD_GPIO_TTL + 27)
+
+#define SSD20XD_GPIO_GPIO	(SSD20XD_GPIO_TTL27 + 1)
+#define SSD20XD_GPIO_GPIO0	(SSD20XD_GPIO_GPIO + 0)
+#define SSD20XD_GPIO_GPIO1	(SSD20XD_GPIO_GPIO + 1)
+#define SSD20XD_GPIO_GPIO2	(SSD20XD_GPIO_GPIO + 2)
+#define SSD20XD_GPIO_GPIO3	(SSD20XD_GPIO_GPIO + 3)
+#define SSD20XD_GPIO_GPIO4	(SSD20XD_GPIO_GPIO + 4)
+#define SSD20XD_GPIO_GPIO5	(SSD20XD_GPIO_GPIO + 5)
+#define SSD20XD_GPIO_GPIO6	(SSD20XD_GPIO_GPIO + 6)
+#define SSD20XD_GPIO_GPIO7	(SSD20XD_GPIO_GPIO + 7)
+#define SSD20XD_GPIO_GPIO10	(SSD20XD_GPIO_GPIO + 8)
+#define SSD20XD_GPIO_GPIO11	(SSD20XD_GPIO_GPIO + 9)
+#define SSD20XD_GPIO_GPIO12	(SSD20XD_GPIO_GPIO + 10)
+#define SSD20XD_GPIO_GPIO13	(SSD20XD_GPIO_GPIO + 11)
+#define SSD20XD_GPIO_GPIO14	(SSD20XD_GPIO_GPIO + 12)
+#define SSD20XD_GPIO_GPIO85	(SSD20XD_GPIO_GPIO + 13)
+#define SSD20XD_GPIO_GPIO86	(SSD20XD_GPIO_GPIO + 14)
+#define SSD20XD_GPIO_GPIO90	(SSD20XD_GPIO_GPIO + 15)
+
 #endif /* _DT_BINDINGS_MSC313_GPIO_H */
-- 
2.34.1

[PATCH v3 2/5] dt-bindings: gpio: msc313: Add offsets for ssd20xd

[Daniel Palmer]

Add the gpio offsets for the SSD201 and SSD202D chips.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Acked-by: Rob Herring <robh@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 include/dt-bindings/gpio/msc313-gpio.h | 71 ++++++++++++++++++++++++++
 1 file changed, 71 insertions(+)

diff --git a/include/dt-bindings/gpio/msc313-gpio.h b/include/dt-bindings/gpio/msc313-gpio.h
index 2dd56683d3c1..5458c6580a02 100644
--- a/include/dt-bindings/gpio/msc313-gpio.h
+++ b/include/dt-bindings/gpio/msc313-gpio.h
@@ -50,4 +50,75 @@
 #define MSC313_GPIO_SPI0_DI	(MSC313_GPIO_SPI0 + 2)
 #define MSC313_GPIO_SPI0_DO	(MSC313_GPIO_SPI0 + 3)
 
+/* SSD20x */
+#define SSD20XD_GPIO_FUART	0
+#define SSD20XD_GPIO_FUART_RX	(SSD20XD_GPIO_FUART + 0)
+#define SSD20XD_GPIO_FUART_TX	(SSD20XD_GPIO_FUART + 1)
+#define SSD20XD_GPIO_FUART_CTS	(SSD20XD_GPIO_FUART + 2)
+#define SSD20XD_GPIO_FUART_RTS	(SSD20XD_GPIO_FUART + 3)
+
+#define SSD20XD_GPIO_SD		(SSD20XD_GPIO_FUART_RTS + 1)
+#define SSD20XD_GPIO_SD_CLK	(SSD20XD_GPIO_SD + 0)
+#define SSD20XD_GPIO_SD_CMD	(SSD20XD_GPIO_SD + 1)
+#define SSD20XD_GPIO_SD_D0	(SSD20XD_GPIO_SD + 2)
+#define SSD20XD_GPIO_SD_D1	(SSD20XD_GPIO_SD + 3)
+#define SSD20XD_GPIO_SD_D2	(SSD20XD_GPIO_SD + 4)
+#define SSD20XD_GPIO_SD_D3	(SSD20XD_GPIO_SD + 5)
+
+#define SSD20XD_GPIO_UART0	(SSD20XD_GPIO_SD_D3 + 1)
+#define SSD20XD_GPIO_UART0_RX	(SSD20XD_GPIO_UART0 + 0)
+#define SSD20XD_GPIO_UART0_TX	(SSD20XD_GPIO_UART0 + 1)
+
+#define SSD20XD_GPIO_UART1	(SSD20XD_GPIO_UART0_TX + 1)
+#define SSD20XD_GPIO_UART1_RX	(SSD20XD_GPIO_UART1 + 0)
+#define SSD20XD_GPIO_UART1_TX	(SSD20XD_GPIO_UART1 + 1)
+
+#define SSD20XD_GPIO_TTL	(SSD20XD_GPIO_UART1_TX + 1)
+#define SSD20XD_GPIO_TTL0	(SSD20XD_GPIO_TTL + 0)
+#define SSD20XD_GPIO_TTL1	(SSD20XD_GPIO_TTL + 1)
+#define SSD20XD_GPIO_TTL2	(SSD20XD_GPIO_TTL + 2)
+#define SSD20XD_GPIO_TTL3	(SSD20XD_GPIO_TTL + 3)
+#define SSD20XD_GPIO_TTL4	(SSD20XD_GPIO_TTL + 4)
+#define SSD20XD_GPIO_TTL5	(SSD20XD_GPIO_TTL + 5)
+#define SSD20XD_GPIO_TTL6	(SSD20XD_GPIO_TTL + 6)
+#define SSD20XD_GPIO_TTL7	(SSD20XD_GPIO_TTL + 7)
+#define SSD20XD_GPIO_TTL8	(SSD20XD_GPIO_TTL + 8)
+#define SSD20XD_GPIO_TTL9	(SSD20XD_GPIO_TTL + 9)
+#define SSD20XD_GPIO_TTL10	(SSD20XD_GPIO_TTL + 10)
+#define SSD20XD_GPIO_TTL11	(SSD20XD_GPIO_TTL + 11)
+#define SSD20XD_GPIO_TTL12	(SSD20XD_GPIO_TTL + 12)
+#define SSD20XD_GPIO_TTL13	(SSD20XD_GPIO_TTL + 13)
+#define SSD20XD_GPIO_TTL14	(SSD20XD_GPIO_TTL + 14)
+#define SSD20XD_GPIO_TTL15	(SSD20XD_GPIO_TTL + 15)
+#define SSD20XD_GPIO_TTL16	(SSD20XD_GPIO_TTL + 16)
+#define SSD20XD_GPIO_TTL17	(SSD20XD_GPIO_TTL + 17)
+#define SSD20XD_GPIO_TTL18	(SSD20XD_GPIO_TTL + 18)
+#define SSD20XD_GPIO_TTL19	(SSD20XD_GPIO_TTL + 19)
+#define SSD20XD_GPIO_TTL20	(SSD20XD_GPIO_TTL + 20)
+#define SSD20XD_GPIO_TTL21	(SSD20XD_GPIO_TTL + 21)
+#define SSD20XD_GPIO_TTL22	(SSD20XD_GPIO_TTL + 22)
+#define SSD20XD_GPIO_TTL23	(SSD20XD_GPIO_TTL + 23)
+#define SSD20XD_GPIO_TTL24	(SSD20XD_GPIO_TTL + 24)
+#define SSD20XD_GPIO_TTL25	(SSD20XD_GPIO_TTL + 25)
+#define SSD20XD_GPIO_TTL26	(SSD20XD_GPIO_TTL + 26)
+#define SSD20XD_GPIO_TTL27	(SSD20XD_GPIO_TTL + 27)
+
+#define SSD20XD_GPIO_GPIO	(SSD20XD_GPIO_TTL27 + 1)
+#define SSD20XD_GPIO_GPIO0	(SSD20XD_GPIO_GPIO + 0)
+#define SSD20XD_GPIO_GPIO1	(SSD20XD_GPIO_GPIO + 1)
+#define SSD20XD_GPIO_GPIO2	(SSD20XD_GPIO_GPIO + 2)
+#define SSD20XD_GPIO_GPIO3	(SSD20XD_GPIO_GPIO + 3)
+#define SSD20XD_GPIO_GPIO4	(SSD20XD_GPIO_GPIO + 4)
+#define SSD20XD_GPIO_GPIO5	(SSD20XD_GPIO_GPIO + 5)
+#define SSD20XD_GPIO_GPIO6	(SSD20XD_GPIO_GPIO + 6)
+#define SSD20XD_GPIO_GPIO7	(SSD20XD_GPIO_GPIO + 7)
+#define SSD20XD_GPIO_GPIO10	(SSD20XD_GPIO_GPIO + 8)
+#define SSD20XD_GPIO_GPIO11	(SSD20XD_GPIO_GPIO + 9)
+#define SSD20XD_GPIO_GPIO12	(SSD20XD_GPIO_GPIO + 10)
+#define SSD20XD_GPIO_GPIO13	(SSD20XD_GPIO_GPIO + 11)
+#define SSD20XD_GPIO_GPIO14	(SSD20XD_GPIO_GPIO + 12)
+#define SSD20XD_GPIO_GPIO85	(SSD20XD_GPIO_GPIO + 13)
+#define SSD20XD_GPIO_GPIO86	(SSD20XD_GPIO_GPIO + 14)
+#define SSD20XD_GPIO_GPIO90	(SSD20XD_GPIO_GPIO + 15)
+
 #endif /* _DT_BINDINGS_MSC313_GPIO_H */
-- 
2.34.1


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[PATCH v3 3/5] gpio: msc313: Code clean ups

[Daniel Palmer]

- Remove the unneeded assignment of ret before returning it.
- Remove an unneeded blank line

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-msc313.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-msc313.c b/drivers/gpio/gpio-msc313.c
index da31a5ff7a2b..a894bafbd4c3 100644
--- a/drivers/gpio/gpio-msc313.c
+++ b/drivers/gpio/gpio-msc313.c
@@ -344,7 +344,6 @@ static int msc313_gpio_probe(struct platform_device *pdev)
 	struct irq_domain *parent_domain;
 	struct device_node *parent_node;
 	struct device *dev = &pdev->dev;
-	int ret;
 
 	match_data = of_device_get_match_data(dev);
 	if (!match_data)
@@ -399,8 +398,7 @@ static int msc313_gpio_probe(struct platform_device *pdev)
 	gpioirqchip->handler = handle_bad_irq;
 	gpioirqchip->default_type = IRQ_TYPE_NONE;
 
-	ret = devm_gpiochip_add_data(dev, gpiochip, gpio);
-	return ret;
+	return devm_gpiochip_add_data(dev, gpiochip, gpio);
 }
 
 static int msc313_gpio_remove(struct platform_device *pdev)
@@ -456,5 +454,4 @@ static struct platform_driver msc313_gpio_driver = {
 	.probe = msc313_gpio_probe,
 	.remove = msc313_gpio_remove,
 };
-
 builtin_platform_driver(msc313_gpio_driver);
-- 
2.34.1

[PATCH v3 3/5] gpio: msc313: Code clean ups

[Daniel Palmer]

- Remove the unneeded assignment of ret before returning it.
- Remove an unneeded blank line

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-msc313.c | 5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

diff --git a/drivers/gpio/gpio-msc313.c b/drivers/gpio/gpio-msc313.c
index da31a5ff7a2b..a894bafbd4c3 100644
--- a/drivers/gpio/gpio-msc313.c
+++ b/drivers/gpio/gpio-msc313.c
@@ -344,7 +344,6 @@ static int msc313_gpio_probe(struct platform_device *pdev)
 	struct irq_domain *parent_domain;
 	struct device_node *parent_node;
 	struct device *dev = &pdev->dev;
-	int ret;
 
 	match_data = of_device_get_match_data(dev);
 	if (!match_data)
@@ -399,8 +398,7 @@ static int msc313_gpio_probe(struct platform_device *pdev)
 	gpioirqchip->handler = handle_bad_irq;
 	gpioirqchip->default_type = IRQ_TYPE_NONE;
 
-	ret = devm_gpiochip_add_data(dev, gpiochip, gpio);
-	return ret;
+	return devm_gpiochip_add_data(dev, gpiochip, gpio);
 }
 
 static int msc313_gpio_remove(struct platform_device *pdev)
@@ -456,5 +454,4 @@ static struct platform_driver msc313_gpio_driver = {
 	.probe = msc313_gpio_probe,
 	.remove = msc313_gpio_remove,
 };
-
 builtin_platform_driver(msc313_gpio_driver);
-- 
2.34.1


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[PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Daniel Palmer]

This adds GPIO support for the SSD201 and SSD202D chips.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-msc313.c | 261 +++++++++++++++++++++++++++++++++++++
 1 file changed, 261 insertions(+)

diff --git a/drivers/gpio/gpio-msc313.c b/drivers/gpio/gpio-msc313.c
index a894bafbd4c3..b2c90bdd39d0 100644
--- a/drivers/gpio/gpio-msc313.c
+++ b/drivers/gpio/gpio-msc313.c
@@ -221,6 +221,263 @@ static const unsigned int msc313_offsets[] = {
 };
 
 MSC313_GPIO_CHIPDATA(msc313);
+
+/*
+ * Unlike the msc313(e) the ssd20xd have a bunch of pins
+ * that are actually called gpio probably because they
+ * have no dedicated function.
+ */
+#define SSD20XD_PINNAME_GPIO0		"gpio0"
+#define SSD20XD_PINNAME_GPIO1		"gpio1"
+#define SSD20XD_PINNAME_GPIO2		"gpio2"
+#define SSD20XD_PINNAME_GPIO3		"gpio3"
+#define SSD20XD_PINNAME_GPIO4		"gpio4"
+#define SSD20XD_PINNAME_GPIO5		"gpio5"
+#define SSD20XD_PINNAME_GPIO6		"gpio6"
+#define SSD20XD_PINNAME_GPIO7		"gpio7"
+#define SSD20XD_PINNAME_GPIO10		"gpio10"
+#define SSD20XD_PINNAME_GPIO11		"gpio11"
+#define SSD20XD_PINNAME_GPIO12		"gpio12"
+#define SSD20XD_PINNAME_GPIO13		"gpio13"
+#define SSD20XD_PINNAME_GPIO14		"gpio14"
+#define SSD20XD_PINNAME_GPIO85		"gpio85"
+#define SSD20XD_PINNAME_GPIO86		"gpio86"
+#define SSD20XD_PINNAME_GPIO90		"gpio90"
+
+#define SSD20XD_GPIO_NAMES SSD20XD_PINNAME_GPIO0,  \
+			   SSD20XD_PINNAME_GPIO1,  \
+			   SSD20XD_PINNAME_GPIO2,  \
+			   SSD20XD_PINNAME_GPIO3,  \
+			   SSD20XD_PINNAME_GPIO4,  \
+			   SSD20XD_PINNAME_GPIO5,  \
+			   SSD20XD_PINNAME_GPIO6,  \
+			   SSD20XD_PINNAME_GPIO7,  \
+			   SSD20XD_PINNAME_GPIO10, \
+			   SSD20XD_PINNAME_GPIO11, \
+			   SSD20XD_PINNAME_GPIO12, \
+			   SSD20XD_PINNAME_GPIO13, \
+			   SSD20XD_PINNAME_GPIO14, \
+			   SSD20XD_PINNAME_GPIO85, \
+			   SSD20XD_PINNAME_GPIO86, \
+			   SSD20XD_PINNAME_GPIO90
+
+#define SSD20XD_GPIO_OFF_GPIO0 0x0
+#define SSD20XD_GPIO_OFF_GPIO1 0x4
+#define SSD20XD_GPIO_OFF_GPIO2 0x8
+#define SSD20XD_GPIO_OFF_GPIO3 0xc
+#define SSD20XD_GPIO_OFF_GPIO4 0x10
+#define SSD20XD_GPIO_OFF_GPIO5 0x14
+#define SSD20XD_GPIO_OFF_GPIO6 0x18
+#define SSD20XD_GPIO_OFF_GPIO7 0x1c
+#define SSD20XD_GPIO_OFF_GPIO10 0x28
+#define SSD20XD_GPIO_OFF_GPIO11 0x2c
+#define SSD20XD_GPIO_OFF_GPIO12 0x30
+#define SSD20XD_GPIO_OFF_GPIO13 0x34
+#define SSD20XD_GPIO_OFF_GPIO14 0x38
+#define SSD20XD_GPIO_OFF_GPIO85 0x100
+#define SSD20XD_GPIO_OFF_GPIO86 0x104
+#define SSD20XD_GPIO_OFF_GPIO90 0x114
+
+#define SSD20XD_GPIO_OFFSETS SSD20XD_GPIO_OFF_GPIO0,  \
+			     SSD20XD_GPIO_OFF_GPIO1,  \
+			     SSD20XD_GPIO_OFF_GPIO2,  \
+			     SSD20XD_GPIO_OFF_GPIO3,  \
+			     SSD20XD_GPIO_OFF_GPIO4,  \
+			     SSD20XD_GPIO_OFF_GPIO5,  \
+			     SSD20XD_GPIO_OFF_GPIO6,  \
+			     SSD20XD_GPIO_OFF_GPIO7,  \
+			     SSD20XD_GPIO_OFF_GPIO10, \
+			     SSD20XD_GPIO_OFF_GPIO11, \
+			     SSD20XD_GPIO_OFF_GPIO12, \
+			     SSD20XD_GPIO_OFF_GPIO13, \
+			     SSD20XD_GPIO_OFF_GPIO14, \
+			     SSD20XD_GPIO_OFF_GPIO85, \
+			     SSD20XD_GPIO_OFF_GPIO86, \
+			     SSD20XD_GPIO_OFF_GPIO90
+
+/* "ttl" pins lcd interface pins */
+#define SSD20XD_PINNAME_TTL0	"ttl0"
+#define SSD20XD_PINNAME_TTL1	"ttl1"
+#define SSD20XD_PINNAME_TTL2	"ttl2"
+#define SSD20XD_PINNAME_TTL3	"ttl3"
+#define SSD20XD_PINNAME_TTL4	"ttl4"
+#define SSD20XD_PINNAME_TTL5	"ttl5"
+#define SSD20XD_PINNAME_TTL6	"ttl6"
+#define SSD20XD_PINNAME_TTL7	"ttl7"
+#define SSD20XD_PINNAME_TTL8	"ttl8"
+#define SSD20XD_PINNAME_TTL9	"ttl9"
+#define SSD20XD_PINNAME_TTL10	"ttl10"
+#define SSD20XD_PINNAME_TTL11	"ttl11"
+#define SSD20XD_PINNAME_TTL12	"ttl12"
+#define SSD20XD_PINNAME_TTL13	"ttl13"
+#define SSD20XD_PINNAME_TTL14	"ttl14"
+#define SSD20XD_PINNAME_TTL15	"ttl15"
+#define SSD20XD_PINNAME_TTL16	"ttl16"
+#define SSD20XD_PINNAME_TTL17	"ttl17"
+#define SSD20XD_PINNAME_TTL18	"ttl18"
+#define SSD20XD_PINNAME_TTL19	"ttl19"
+#define SSD20XD_PINNAME_TTL20	"ttl20"
+#define SSD20XD_PINNAME_TTL21	"ttl21"
+#define SSD20XD_PINNAME_TTL22	"ttl22"
+#define SSD20XD_PINNAME_TTL23	"ttl23"
+#define SSD20XD_PINNAME_TTL24	"ttl24"
+#define SSD20XD_PINNAME_TTL25	"ttl25"
+#define SSD20XD_PINNAME_TTL26	"ttl26"
+#define SSD20XD_PINNAME_TTL27	"ttl27"
+
+#define SSD20XD_TTL_PINNAMES SSD20XD_PINNAME_TTL0,  \
+			     SSD20XD_PINNAME_TTL1,  \
+			     SSD20XD_PINNAME_TTL2,  \
+			     SSD20XD_PINNAME_TTL3,  \
+			     SSD20XD_PINNAME_TTL4,  \
+			     SSD20XD_PINNAME_TTL5,  \
+			     SSD20XD_PINNAME_TTL6,  \
+			     SSD20XD_PINNAME_TTL7,  \
+			     SSD20XD_PINNAME_TTL8,  \
+			     SSD20XD_PINNAME_TTL9,  \
+			     SSD20XD_PINNAME_TTL10, \
+			     SSD20XD_PINNAME_TTL11, \
+			     SSD20XD_PINNAME_TTL12, \
+			     SSD20XD_PINNAME_TTL13, \
+			     SSD20XD_PINNAME_TTL14, \
+			     SSD20XD_PINNAME_TTL15, \
+			     SSD20XD_PINNAME_TTL16, \
+			     SSD20XD_PINNAME_TTL17, \
+			     SSD20XD_PINNAME_TTL18, \
+			     SSD20XD_PINNAME_TTL19, \
+			     SSD20XD_PINNAME_TTL20, \
+			     SSD20XD_PINNAME_TTL21, \
+			     SSD20XD_PINNAME_TTL22, \
+			     SSD20XD_PINNAME_TTL23, \
+			     SSD20XD_PINNAME_TTL24, \
+			     SSD20XD_PINNAME_TTL25, \
+			     SSD20XD_PINNAME_TTL26, \
+			     SSD20XD_PINNAME_TTL27
+
+#define SSD20XD_TTL_OFFSET_TTL0		0x80
+#define SSD20XD_TTL_OFFSET_TTL1		0x84
+#define SSD20XD_TTL_OFFSET_TTL2		0x88
+#define SSD20XD_TTL_OFFSET_TTL3		0x8c
+#define SSD20XD_TTL_OFFSET_TTL4		0x90
+#define SSD20XD_TTL_OFFSET_TTL5		0x94
+#define SSD20XD_TTL_OFFSET_TTL6		0x98
+#define SSD20XD_TTL_OFFSET_TTL7		0x9c
+#define SSD20XD_TTL_OFFSET_TTL8		0xa0
+#define SSD20XD_TTL_OFFSET_TTL9		0xa4
+#define SSD20XD_TTL_OFFSET_TTL10	0xa8
+#define SSD20XD_TTL_OFFSET_TTL11	0xac
+#define SSD20XD_TTL_OFFSET_TTL12	0xb0
+#define SSD20XD_TTL_OFFSET_TTL13	0xb4
+#define SSD20XD_TTL_OFFSET_TTL14	0xb8
+#define SSD20XD_TTL_OFFSET_TTL15	0xbc
+#define SSD20XD_TTL_OFFSET_TTL16	0xc0
+#define SSD20XD_TTL_OFFSET_TTL17	0xc4
+#define SSD20XD_TTL_OFFSET_TTL18	0xc8
+#define SSD20XD_TTL_OFFSET_TTL19	0xcc
+#define SSD20XD_TTL_OFFSET_TTL20	0xd0
+#define SSD20XD_TTL_OFFSET_TTL21	0xd4
+#define SSD20XD_TTL_OFFSET_TTL22	0xd8
+#define SSD20XD_TTL_OFFSET_TTL23	0xdc
+#define SSD20XD_TTL_OFFSET_TTL24	0xe0
+#define SSD20XD_TTL_OFFSET_TTL25	0xe4
+#define SSD20XD_TTL_OFFSET_TTL26	0xe8
+#define SSD20XD_TTL_OFFSET_TTL27	0xec
+
+#define SSD20XD_TTL_OFFSETS SSD20XD_TTL_OFFSET_TTL0,  \
+			    SSD20XD_TTL_OFFSET_TTL1,  \
+			    SSD20XD_TTL_OFFSET_TTL2,  \
+			    SSD20XD_TTL_OFFSET_TTL3,  \
+			    SSD20XD_TTL_OFFSET_TTL4,  \
+			    SSD20XD_TTL_OFFSET_TTL5,  \
+			    SSD20XD_TTL_OFFSET_TTL6,  \
+			    SSD20XD_TTL_OFFSET_TTL7,  \
+			    SSD20XD_TTL_OFFSET_TTL8,  \
+			    SSD20XD_TTL_OFFSET_TTL9,  \
+			    SSD20XD_TTL_OFFSET_TTL10, \
+			    SSD20XD_TTL_OFFSET_TTL11, \
+			    SSD20XD_TTL_OFFSET_TTL12, \
+			    SSD20XD_TTL_OFFSET_TTL13, \
+			    SSD20XD_TTL_OFFSET_TTL14, \
+			    SSD20XD_TTL_OFFSET_TTL15, \
+			    SSD20XD_TTL_OFFSET_TTL16, \
+			    SSD20XD_TTL_OFFSET_TTL17, \
+			    SSD20XD_TTL_OFFSET_TTL18, \
+			    SSD20XD_TTL_OFFSET_TTL19, \
+			    SSD20XD_TTL_OFFSET_TTL20, \
+			    SSD20XD_TTL_OFFSET_TTL21, \
+			    SSD20XD_TTL_OFFSET_TTL22, \
+			    SSD20XD_TTL_OFFSET_TTL23, \
+			    SSD20XD_TTL_OFFSET_TTL24, \
+			    SSD20XD_TTL_OFFSET_TTL25, \
+			    SSD20XD_TTL_OFFSET_TTL26, \
+			    SSD20XD_TTL_OFFSET_TTL27
+
+/* On the ssd20xd the two normal uarts have dedicated pins */
+#define SSD20XD_PINNAME_UART0_RX	"uart0_rx"
+#define SSD20XD_PINNAME_UART0_TX	"uart0_tx"
+
+#define SSD20XD_UART0_NAMES	  \
+	SSD20XD_PINNAME_UART0_RX, \
+	SSD20XD_PINNAME_UART0_TX
+
+#define SSD20XD_PINNAME_UART1_RX	"uart1_rx"
+#define SSD20XD_PINNAME_UART1_TX	"uart1_tx"
+
+#define SSD20XD_UART1_NAMES	  \
+	SSD20XD_PINNAME_UART1_RX, \
+	SSD20XD_PINNAME_UART1_TX
+
+#define SSD20XD_OFF_UART0_RX	0x60
+#define SSD20XD_OFF_UART0_TX	0x64
+
+#define SSD20XD_UART0_OFFSETS \
+	SSD20XD_OFF_UART0_RX, \
+	SSD20XD_OFF_UART0_TX
+
+#define SSD20XD_OFF_UART1_RX	0x68
+#define SSD20XD_OFF_UART1_TX	0x6c
+
+#define SSD20XD_UART1_OFFSETS \
+	SSD20XD_OFF_UART1_RX, \
+	SSD20XD_OFF_UART1_TX
+
+/*
+ * ssd20x has the same pin names but different ordering
+ * of the registers that control the gpio.
+ */
+#define SSD20XD_OFF_SD_D0	0x140
+#define SSD20XD_OFF_SD_D1	0x144
+#define SSD20XD_OFF_SD_D2	0x148
+#define SSD20XD_OFF_SD_D3	0x14c
+#define SSD20XD_OFF_SD_CMD	0x150
+#define SSD20XD_OFF_SD_CLK	0x154
+
+#define SSD20XD_SD_OFFSETS	SSD20XD_OFF_SD_CLK, \
+				SSD20XD_OFF_SD_CMD, \
+				SSD20XD_OFF_SD_D0,  \
+				SSD20XD_OFF_SD_D1,  \
+				SSD20XD_OFF_SD_D2,  \
+				SSD20XD_OFF_SD_D3
+
+static const char * const ssd20xd_names[] = {
+	FUART_NAMES,
+	SD_NAMES,
+	SSD20XD_UART0_NAMES,
+	SSD20XD_UART1_NAMES,
+	SSD20XD_TTL_PINNAMES,
+	SSD20XD_GPIO_NAMES,
+};
+
+static const unsigned int ssd20xd_offsets[] = {
+	FUART_OFFSETS,
+	SSD20XD_SD_OFFSETS,
+	SSD20XD_UART0_OFFSETS,
+	SSD20XD_UART1_OFFSETS,
+	SSD20XD_TTL_OFFSETS,
+	SSD20XD_GPIO_OFFSETS,
+};
+
+MSC313_GPIO_CHIPDATA(ssd20xd);
 #endif
 
 struct msc313_gpio {
@@ -412,6 +669,10 @@ static const struct of_device_id msc313_gpio_of_match[] = {
 		.compatible = "mstar,msc313-gpio",
 		.data = &msc313_data,
 	},
+	{
+		.compatible = "sstar,ssd20xd-gpio",
+		.data = &ssd20xd_data,
+	},
 #endif
 	{ }
 };
-- 
2.34.1

[PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Daniel Palmer]

This adds GPIO support for the SSD201 and SSD202D chips.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 drivers/gpio/gpio-msc313.c | 261 +++++++++++++++++++++++++++++++++++++
 1 file changed, 261 insertions(+)

diff --git a/drivers/gpio/gpio-msc313.c b/drivers/gpio/gpio-msc313.c
index a894bafbd4c3..b2c90bdd39d0 100644
--- a/drivers/gpio/gpio-msc313.c
+++ b/drivers/gpio/gpio-msc313.c
@@ -221,6 +221,263 @@ static const unsigned int msc313_offsets[] = {
 };
 
 MSC313_GPIO_CHIPDATA(msc313);
+
+/*
+ * Unlike the msc313(e) the ssd20xd have a bunch of pins
+ * that are actually called gpio probably because they
+ * have no dedicated function.
+ */
+#define SSD20XD_PINNAME_GPIO0		"gpio0"
+#define SSD20XD_PINNAME_GPIO1		"gpio1"
+#define SSD20XD_PINNAME_GPIO2		"gpio2"
+#define SSD20XD_PINNAME_GPIO3		"gpio3"
+#define SSD20XD_PINNAME_GPIO4		"gpio4"
+#define SSD20XD_PINNAME_GPIO5		"gpio5"
+#define SSD20XD_PINNAME_GPIO6		"gpio6"
+#define SSD20XD_PINNAME_GPIO7		"gpio7"
+#define SSD20XD_PINNAME_GPIO10		"gpio10"
+#define SSD20XD_PINNAME_GPIO11		"gpio11"
+#define SSD20XD_PINNAME_GPIO12		"gpio12"
+#define SSD20XD_PINNAME_GPIO13		"gpio13"
+#define SSD20XD_PINNAME_GPIO14		"gpio14"
+#define SSD20XD_PINNAME_GPIO85		"gpio85"
+#define SSD20XD_PINNAME_GPIO86		"gpio86"
+#define SSD20XD_PINNAME_GPIO90		"gpio90"
+
+#define SSD20XD_GPIO_NAMES SSD20XD_PINNAME_GPIO0,  \
+			   SSD20XD_PINNAME_GPIO1,  \
+			   SSD20XD_PINNAME_GPIO2,  \
+			   SSD20XD_PINNAME_GPIO3,  \
+			   SSD20XD_PINNAME_GPIO4,  \
+			   SSD20XD_PINNAME_GPIO5,  \
+			   SSD20XD_PINNAME_GPIO6,  \
+			   SSD20XD_PINNAME_GPIO7,  \
+			   SSD20XD_PINNAME_GPIO10, \
+			   SSD20XD_PINNAME_GPIO11, \
+			   SSD20XD_PINNAME_GPIO12, \
+			   SSD20XD_PINNAME_GPIO13, \
+			   SSD20XD_PINNAME_GPIO14, \
+			   SSD20XD_PINNAME_GPIO85, \
+			   SSD20XD_PINNAME_GPIO86, \
+			   SSD20XD_PINNAME_GPIO90
+
+#define SSD20XD_GPIO_OFF_GPIO0 0x0
+#define SSD20XD_GPIO_OFF_GPIO1 0x4
+#define SSD20XD_GPIO_OFF_GPIO2 0x8
+#define SSD20XD_GPIO_OFF_GPIO3 0xc
+#define SSD20XD_GPIO_OFF_GPIO4 0x10
+#define SSD20XD_GPIO_OFF_GPIO5 0x14
+#define SSD20XD_GPIO_OFF_GPIO6 0x18
+#define SSD20XD_GPIO_OFF_GPIO7 0x1c
+#define SSD20XD_GPIO_OFF_GPIO10 0x28
+#define SSD20XD_GPIO_OFF_GPIO11 0x2c
+#define SSD20XD_GPIO_OFF_GPIO12 0x30
+#define SSD20XD_GPIO_OFF_GPIO13 0x34
+#define SSD20XD_GPIO_OFF_GPIO14 0x38
+#define SSD20XD_GPIO_OFF_GPIO85 0x100
+#define SSD20XD_GPIO_OFF_GPIO86 0x104
+#define SSD20XD_GPIO_OFF_GPIO90 0x114
+
+#define SSD20XD_GPIO_OFFSETS SSD20XD_GPIO_OFF_GPIO0,  \
+			     SSD20XD_GPIO_OFF_GPIO1,  \
+			     SSD20XD_GPIO_OFF_GPIO2,  \
+			     SSD20XD_GPIO_OFF_GPIO3,  \
+			     SSD20XD_GPIO_OFF_GPIO4,  \
+			     SSD20XD_GPIO_OFF_GPIO5,  \
+			     SSD20XD_GPIO_OFF_GPIO6,  \
+			     SSD20XD_GPIO_OFF_GPIO7,  \
+			     SSD20XD_GPIO_OFF_GPIO10, \
+			     SSD20XD_GPIO_OFF_GPIO11, \
+			     SSD20XD_GPIO_OFF_GPIO12, \
+			     SSD20XD_GPIO_OFF_GPIO13, \
+			     SSD20XD_GPIO_OFF_GPIO14, \
+			     SSD20XD_GPIO_OFF_GPIO85, \
+			     SSD20XD_GPIO_OFF_GPIO86, \
+			     SSD20XD_GPIO_OFF_GPIO90
+
+/* "ttl" pins lcd interface pins */
+#define SSD20XD_PINNAME_TTL0	"ttl0"
+#define SSD20XD_PINNAME_TTL1	"ttl1"
+#define SSD20XD_PINNAME_TTL2	"ttl2"
+#define SSD20XD_PINNAME_TTL3	"ttl3"
+#define SSD20XD_PINNAME_TTL4	"ttl4"
+#define SSD20XD_PINNAME_TTL5	"ttl5"
+#define SSD20XD_PINNAME_TTL6	"ttl6"
+#define SSD20XD_PINNAME_TTL7	"ttl7"
+#define SSD20XD_PINNAME_TTL8	"ttl8"
+#define SSD20XD_PINNAME_TTL9	"ttl9"
+#define SSD20XD_PINNAME_TTL10	"ttl10"
+#define SSD20XD_PINNAME_TTL11	"ttl11"
+#define SSD20XD_PINNAME_TTL12	"ttl12"
+#define SSD20XD_PINNAME_TTL13	"ttl13"
+#define SSD20XD_PINNAME_TTL14	"ttl14"
+#define SSD20XD_PINNAME_TTL15	"ttl15"
+#define SSD20XD_PINNAME_TTL16	"ttl16"
+#define SSD20XD_PINNAME_TTL17	"ttl17"
+#define SSD20XD_PINNAME_TTL18	"ttl18"
+#define SSD20XD_PINNAME_TTL19	"ttl19"
+#define SSD20XD_PINNAME_TTL20	"ttl20"
+#define SSD20XD_PINNAME_TTL21	"ttl21"
+#define SSD20XD_PINNAME_TTL22	"ttl22"
+#define SSD20XD_PINNAME_TTL23	"ttl23"
+#define SSD20XD_PINNAME_TTL24	"ttl24"
+#define SSD20XD_PINNAME_TTL25	"ttl25"
+#define SSD20XD_PINNAME_TTL26	"ttl26"
+#define SSD20XD_PINNAME_TTL27	"ttl27"
+
+#define SSD20XD_TTL_PINNAMES SSD20XD_PINNAME_TTL0,  \
+			     SSD20XD_PINNAME_TTL1,  \
+			     SSD20XD_PINNAME_TTL2,  \
+			     SSD20XD_PINNAME_TTL3,  \
+			     SSD20XD_PINNAME_TTL4,  \
+			     SSD20XD_PINNAME_TTL5,  \
+			     SSD20XD_PINNAME_TTL6,  \
+			     SSD20XD_PINNAME_TTL7,  \
+			     SSD20XD_PINNAME_TTL8,  \
+			     SSD20XD_PINNAME_TTL9,  \
+			     SSD20XD_PINNAME_TTL10, \
+			     SSD20XD_PINNAME_TTL11, \
+			     SSD20XD_PINNAME_TTL12, \
+			     SSD20XD_PINNAME_TTL13, \
+			     SSD20XD_PINNAME_TTL14, \
+			     SSD20XD_PINNAME_TTL15, \
+			     SSD20XD_PINNAME_TTL16, \
+			     SSD20XD_PINNAME_TTL17, \
+			     SSD20XD_PINNAME_TTL18, \
+			     SSD20XD_PINNAME_TTL19, \
+			     SSD20XD_PINNAME_TTL20, \
+			     SSD20XD_PINNAME_TTL21, \
+			     SSD20XD_PINNAME_TTL22, \
+			     SSD20XD_PINNAME_TTL23, \
+			     SSD20XD_PINNAME_TTL24, \
+			     SSD20XD_PINNAME_TTL25, \
+			     SSD20XD_PINNAME_TTL26, \
+			     SSD20XD_PINNAME_TTL27
+
+#define SSD20XD_TTL_OFFSET_TTL0		0x80
+#define SSD20XD_TTL_OFFSET_TTL1		0x84
+#define SSD20XD_TTL_OFFSET_TTL2		0x88
+#define SSD20XD_TTL_OFFSET_TTL3		0x8c
+#define SSD20XD_TTL_OFFSET_TTL4		0x90
+#define SSD20XD_TTL_OFFSET_TTL5		0x94
+#define SSD20XD_TTL_OFFSET_TTL6		0x98
+#define SSD20XD_TTL_OFFSET_TTL7		0x9c
+#define SSD20XD_TTL_OFFSET_TTL8		0xa0
+#define SSD20XD_TTL_OFFSET_TTL9		0xa4
+#define SSD20XD_TTL_OFFSET_TTL10	0xa8
+#define SSD20XD_TTL_OFFSET_TTL11	0xac
+#define SSD20XD_TTL_OFFSET_TTL12	0xb0
+#define SSD20XD_TTL_OFFSET_TTL13	0xb4
+#define SSD20XD_TTL_OFFSET_TTL14	0xb8
+#define SSD20XD_TTL_OFFSET_TTL15	0xbc
+#define SSD20XD_TTL_OFFSET_TTL16	0xc0
+#define SSD20XD_TTL_OFFSET_TTL17	0xc4
+#define SSD20XD_TTL_OFFSET_TTL18	0xc8
+#define SSD20XD_TTL_OFFSET_TTL19	0xcc
+#define SSD20XD_TTL_OFFSET_TTL20	0xd0
+#define SSD20XD_TTL_OFFSET_TTL21	0xd4
+#define SSD20XD_TTL_OFFSET_TTL22	0xd8
+#define SSD20XD_TTL_OFFSET_TTL23	0xdc
+#define SSD20XD_TTL_OFFSET_TTL24	0xe0
+#define SSD20XD_TTL_OFFSET_TTL25	0xe4
+#define SSD20XD_TTL_OFFSET_TTL26	0xe8
+#define SSD20XD_TTL_OFFSET_TTL27	0xec
+
+#define SSD20XD_TTL_OFFSETS SSD20XD_TTL_OFFSET_TTL0,  \
+			    SSD20XD_TTL_OFFSET_TTL1,  \
+			    SSD20XD_TTL_OFFSET_TTL2,  \
+			    SSD20XD_TTL_OFFSET_TTL3,  \
+			    SSD20XD_TTL_OFFSET_TTL4,  \
+			    SSD20XD_TTL_OFFSET_TTL5,  \
+			    SSD20XD_TTL_OFFSET_TTL6,  \
+			    SSD20XD_TTL_OFFSET_TTL7,  \
+			    SSD20XD_TTL_OFFSET_TTL8,  \
+			    SSD20XD_TTL_OFFSET_TTL9,  \
+			    SSD20XD_TTL_OFFSET_TTL10, \
+			    SSD20XD_TTL_OFFSET_TTL11, \
+			    SSD20XD_TTL_OFFSET_TTL12, \
+			    SSD20XD_TTL_OFFSET_TTL13, \
+			    SSD20XD_TTL_OFFSET_TTL14, \
+			    SSD20XD_TTL_OFFSET_TTL15, \
+			    SSD20XD_TTL_OFFSET_TTL16, \
+			    SSD20XD_TTL_OFFSET_TTL17, \
+			    SSD20XD_TTL_OFFSET_TTL18, \
+			    SSD20XD_TTL_OFFSET_TTL19, \
+			    SSD20XD_TTL_OFFSET_TTL20, \
+			    SSD20XD_TTL_OFFSET_TTL21, \
+			    SSD20XD_TTL_OFFSET_TTL22, \
+			    SSD20XD_TTL_OFFSET_TTL23, \
+			    SSD20XD_TTL_OFFSET_TTL24, \
+			    SSD20XD_TTL_OFFSET_TTL25, \
+			    SSD20XD_TTL_OFFSET_TTL26, \
+			    SSD20XD_TTL_OFFSET_TTL27
+
+/* On the ssd20xd the two normal uarts have dedicated pins */
+#define SSD20XD_PINNAME_UART0_RX	"uart0_rx"
+#define SSD20XD_PINNAME_UART0_TX	"uart0_tx"
+
+#define SSD20XD_UART0_NAMES	  \
+	SSD20XD_PINNAME_UART0_RX, \
+	SSD20XD_PINNAME_UART0_TX
+
+#define SSD20XD_PINNAME_UART1_RX	"uart1_rx"
+#define SSD20XD_PINNAME_UART1_TX	"uart1_tx"
+
+#define SSD20XD_UART1_NAMES	  \
+	SSD20XD_PINNAME_UART1_RX, \
+	SSD20XD_PINNAME_UART1_TX
+
+#define SSD20XD_OFF_UART0_RX	0x60
+#define SSD20XD_OFF_UART0_TX	0x64
+
+#define SSD20XD_UART0_OFFSETS \
+	SSD20XD_OFF_UART0_RX, \
+	SSD20XD_OFF_UART0_TX
+
+#define SSD20XD_OFF_UART1_RX	0x68
+#define SSD20XD_OFF_UART1_TX	0x6c
+
+#define SSD20XD_UART1_OFFSETS \
+	SSD20XD_OFF_UART1_RX, \
+	SSD20XD_OFF_UART1_TX
+
+/*
+ * ssd20x has the same pin names but different ordering
+ * of the registers that control the gpio.
+ */
+#define SSD20XD_OFF_SD_D0	0x140
+#define SSD20XD_OFF_SD_D1	0x144
+#define SSD20XD_OFF_SD_D2	0x148
+#define SSD20XD_OFF_SD_D3	0x14c
+#define SSD20XD_OFF_SD_CMD	0x150
+#define SSD20XD_OFF_SD_CLK	0x154
+
+#define SSD20XD_SD_OFFSETS	SSD20XD_OFF_SD_CLK, \
+				SSD20XD_OFF_SD_CMD, \
+				SSD20XD_OFF_SD_D0,  \
+				SSD20XD_OFF_SD_D1,  \
+				SSD20XD_OFF_SD_D2,  \
+				SSD20XD_OFF_SD_D3
+
+static const char * const ssd20xd_names[] = {
+	FUART_NAMES,
+	SD_NAMES,
+	SSD20XD_UART0_NAMES,
+	SSD20XD_UART1_NAMES,
+	SSD20XD_TTL_PINNAMES,
+	SSD20XD_GPIO_NAMES,
+};
+
+static const unsigned int ssd20xd_offsets[] = {
+	FUART_OFFSETS,
+	SSD20XD_SD_OFFSETS,
+	SSD20XD_UART0_OFFSETS,
+	SSD20XD_UART1_OFFSETS,
+	SSD20XD_TTL_OFFSETS,
+	SSD20XD_GPIO_OFFSETS,
+};
+
+MSC313_GPIO_CHIPDATA(ssd20xd);
 #endif
 
 struct msc313_gpio {
@@ -412,6 +669,10 @@ static const struct of_device_id msc313_gpio_of_match[] = {
 		.compatible = "mstar,msc313-gpio",
 		.data = &msc313_data,
 	},
+	{
+		.compatible = "sstar,ssd20xd-gpio",
+		.data = &ssd20xd_data,
+	},
 #endif
 	{ }
 };
-- 
2.34.1


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[PATCH v3 5/5] ARM: dts: mstar: Set gpio compatible for ssd20xd

[Daniel Palmer]

Now there is gpio support for ssd20xd set the right compatible in the gpio node.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Romain Perier <romain.perier@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi b/arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi
index 7a5e28b33f96..6f067da61ba3 100644
--- a/arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi
+++ b/arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi
@@ -6,6 +6,11 @@
 
 #include "mstar-infinity2m.dtsi"
 
+&gpio {
+	compatible = "sstar,ssd20xd-gpio";
+	status = "okay";
+};
+
 &smpctrl {
 	compatible = "sstar,ssd201-smpctrl", "mstar,smpctrl";
 	status = "okay";
-- 
2.34.1

[PATCH v3 5/5] ARM: dts: mstar: Set gpio compatible for ssd20xd

[Daniel Palmer]

Now there is gpio support for ssd20xd set the right compatible in the gpio node.

Signed-off-by: Daniel Palmer <daniel@0x0f.com>
Reviewed-by: Romain Perier <romain.perier@gmail.com>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
---
 arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi b/arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi
index 7a5e28b33f96..6f067da61ba3 100644
--- a/arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi
+++ b/arch/arm/boot/dts/mstar-infinity2m-ssd20xd.dtsi
@@ -6,6 +6,11 @@
 
 #include "mstar-infinity2m.dtsi"
 
+&gpio {
+	compatible = "sstar,ssd20xd-gpio";
+	status = "okay";
+};
+
 &smpctrl {
 	compatible = "sstar,ssd201-smpctrl", "mstar,smpctrl";
 	status = "okay";
-- 
2.34.1


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Re: [PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Linus Walleij]

On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:

> As suggested by Linus I have dropped the DTS commits that were
> in the series to add a usage of this code to a target.
> If possible can you take the first 4 commits for the GPIO driver
> for me? The final DTS commit will go via our tree.

Looks to me like patches 1-4 are good to go, but Bartosz
must decide if he wants to merge this late in the development
cycle.

Yours,
Linus Walleij

Re: [PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Linus Walleij]

On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:

> As suggested by Linus I have dropped the DTS commits that were
> in the series to add a usage of this code to a target.
> If possible can you take the first 4 commits for the GPIO driver
> for me? The final DTS commit will go via our tree.

Looks to me like patches 1-4 are good to go, but Bartosz
must decide if he wants to merge this late in the development
cycle.

Yours,
Linus Walleij

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Re: [PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Daniel Palmer]

Hi Linus,

On Thu, 16 Dec 2021 at 11:52, Linus Walleij <linus.walleij@linaro.org> wrote:
>
> On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
>
> > As suggested by Linus I have dropped the DTS commits that were
> > in the series to add a usage of this code to a target.
> > If possible can you take the first 4 commits for the GPIO driver
> > for me? The final DTS commit will go via our tree.
>
> Looks to me like patches 1-4 are good to go, but Bartosz
> must decide if he wants to merge this late in the development
> cycle.

I'd like them in 5.17 as we have a ton of DTS updates that use this
stuff to wire up LEDs and buttons,
but if that doesn't happen it's not a major problem.
Some response from Bartosz to say if he wants anything done before
taking them would be nice.

Thanks,

Daniel

Re: [PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Daniel Palmer]

Hi Linus,

On Thu, 16 Dec 2021 at 11:52, Linus Walleij <linus.walleij@linaro.org> wrote:
>
> On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
>
> > As suggested by Linus I have dropped the DTS commits that were
> > in the series to add a usage of this code to a target.
> > If possible can you take the first 4 commits for the GPIO driver
> > for me? The final DTS commit will go via our tree.
>
> Looks to me like patches 1-4 are good to go, but Bartosz
> must decide if he wants to merge this late in the development
> cycle.

I'd like them in 5.17 as we have a ton of DTS updates that use this
stuff to wire up LEDs and buttons,
but if that doesn't happen it's not a major problem.
Some response from Bartosz to say if he wants anything done before
taking them would be nice.

Thanks,

Daniel

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Re: [PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Andy Shevchenko]

On Thu, Dec 16, 2021 at 11:05 AM Linus Walleij <linus.walleij@linaro.org> wrote:
> On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
>
> > As suggested by Linus I have dropped the DTS commits that were
> > in the series to add a usage of this code to a target.
> > If possible can you take the first 4 commits for the GPIO driver
> > for me? The final DTS commit will go via our tree.
>
> Looks to me like patches 1-4 are good to go, but Bartosz
> must decide if he wants to merge this late in the development
> cycle.

JFYI, it will be rc8.

-- 
With Best Regards,
Andy Shevchenko

Re: [PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Andy Shevchenko]

On Thu, Dec 16, 2021 at 11:05 AM Linus Walleij <linus.walleij@linaro.org> wrote:
> On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
>
> > As suggested by Linus I have dropped the DTS commits that were
> > in the series to add a usage of this code to a target.
> > If possible can you take the first 4 commits for the GPIO driver
> > for me? The final DTS commit will go via our tree.
>
> Looks to me like patches 1-4 are good to go, but Bartosz
> must decide if he wants to merge this late in the development
> cycle.

JFYI, it will be rc8.

-- 
With Best Regards,
Andy Shevchenko

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Re: [PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Bartosz Golaszewski]

On Mon, Dec 20, 2021 at 2:38 PM Andy Shevchenko
<andy.shevchenko@gmail.com> wrote:
>
> On Thu, Dec 16, 2021 at 11:05 AM Linus Walleij <linus.walleij@linaro.org> wrote:
> > On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
> >
> > > As suggested by Linus I have dropped the DTS commits that were
> > > in the series to add a usage of this code to a target.
> > > If possible can you take the first 4 commits for the GPIO driver
> > > for me? The final DTS commit will go via our tree.
> >
> > Looks to me like patches 1-4 are good to go, but Bartosz
> > must decide if he wants to merge this late in the development
> > cycle.
>
> JFYI, it will be rc8.
>
> --
> With Best Regards,
> Andy Shevchenko

Yep. I'll take those and let them bake in next over Christmas.

Bart

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Re: [PATCH v3 0/5] gpio: msc313: Add gpio support for ssd20xd

[Bartosz Golaszewski]

On Mon, Dec 20, 2021 at 2:38 PM Andy Shevchenko
<andy.shevchenko@gmail.com> wrote:
>
> On Thu, Dec 16, 2021 at 11:05 AM Linus Walleij <linus.walleij@linaro.org> wrote:
> > On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
> >
> > > As suggested by Linus I have dropped the DTS commits that were
> > > in the series to add a usage of this code to a target.
> > > If possible can you take the first 4 commits for the GPIO driver
> > > for me? The final DTS commit will go via our tree.
> >
> > Looks to me like patches 1-4 are good to go, but Bartosz
> > must decide if he wants to merge this late in the development
> > cycle.
>
> JFYI, it will be rc8.
>
> --
> With Best Regards,
> Andy Shevchenko

Yep. I'll take those and let them bake in next over Christmas.

Bart

Re: [PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Bartosz Golaszewski]

On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
>
> This adds GPIO support for the SSD201 and SSD202D chips.
>
> Signed-off-by: Daniel Palmer <daniel@0x0f.com>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> ---

I applied patches 1-3. This triggers a bunch of checkpatch errors.
Please address them and resend this single patch.

Bart

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Re: [PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Bartosz Golaszewski]

On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
>
> This adds GPIO support for the SSD201 and SSD202D chips.
>
> Signed-off-by: Daniel Palmer <daniel@0x0f.com>
> Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> ---

I applied patches 1-3. This triggers a bunch of checkpatch errors.
Please address them and resend this single patch.

Bart

Re: [PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Daniel Palmer]

Hi Bartosz,

On Mon, 20 Dec 2021 at 23:50, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>
> On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
> >
> > This adds GPIO support for the SSD201 and SSD202D chips.
> >
> > Signed-off-by: Daniel Palmer <daniel@0x0f.com>
> > Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> > ---
>
> I applied patches 1-3. This triggers a bunch of checkpatch errors.
> Please address them and resend this single patch.

The warnings about complex macros being wrapped in parentheses when
the things it's complaining about are defined lists not macros?
Not going to say I know better than checkpatch but I think the errors
there are wrong. Putting parentheses around the lists would break the
arrays they get put into.

Cheers,

Daniel

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Re: [PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Daniel Palmer]

Hi Bartosz,

On Mon, 20 Dec 2021 at 23:50, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
>
> On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
> >
> > This adds GPIO support for the SSD201 and SSD202D chips.
> >
> > Signed-off-by: Daniel Palmer <daniel@0x0f.com>
> > Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> > ---
>
> I applied patches 1-3. This triggers a bunch of checkpatch errors.
> Please address them and resend this single patch.

The warnings about complex macros being wrapped in parentheses when
the things it's complaining about are defined lists not macros?
Not going to say I know better than checkpatch but I think the errors
there are wrong. Putting parentheses around the lists would break the
arrays they get put into.

Cheers,

Daniel

Re: [PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Bartosz Golaszewski]

On Mon, Dec 20, 2021 at 3:58 PM Daniel Palmer <daniel@0x0f.com> wrote:
>
> Hi Bartosz,
>
> On Mon, 20 Dec 2021 at 23:50, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> >
> > On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
> > >
> > > This adds GPIO support for the SSD201 and SSD202D chips.
> > >
> > > Signed-off-by: Daniel Palmer <daniel@0x0f.com>
> > > Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> > > ---
> >
> > I applied patches 1-3. This triggers a bunch of checkpatch errors.
> > Please address them and resend this single patch.
>
> The warnings about complex macros being wrapped in parentheses when
> the things it's complaining about are defined lists not macros?
> Not going to say I know better than checkpatch but I think the errors
> there are wrong. Putting parentheses around the lists would break the
> arrays they get put into.
>
> Cheers,
>
> Daniel

I took a closer look now and it got even worse. This is some major
obfuscation with those names being defined as macros defining partial
lists...

Anyway, it was already there when you got there so I guess we can
address it separately. Queued for v5.17.

Bart

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Re: [PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Bartosz Golaszewski]

On Mon, Dec 20, 2021 at 3:58 PM Daniel Palmer <daniel@0x0f.com> wrote:
>
> Hi Bartosz,
>
> On Mon, 20 Dec 2021 at 23:50, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> >
> > On Mon, Dec 13, 2021 at 10:40 AM Daniel Palmer <daniel@0x0f.com> wrote:
> > >
> > > This adds GPIO support for the SSD201 and SSD202D chips.
> > >
> > > Signed-off-by: Daniel Palmer <daniel@0x0f.com>
> > > Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
> > > ---
> >
> > I applied patches 1-3. This triggers a bunch of checkpatch errors.
> > Please address them and resend this single patch.
>
> The warnings about complex macros being wrapped in parentheses when
> the things it's complaining about are defined lists not macros?
> Not going to say I know better than checkpatch but I think the errors
> there are wrong. Putting parentheses around the lists would break the
> arrays they get put into.
>
> Cheers,
>
> Daniel

I took a closer look now and it got even worse. This is some major
obfuscation with those names being defined as macros defining partial
lists...

Anyway, it was already there when you got there so I guess we can
address it separately. Queued for v5.17.

Bart

Re: [PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Daniel Palmer]

Hi Bartosz,

On Tue, 21 Dec 2021 at 00:07, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> I took a closer look now and it got even worse. This is some major
> obfuscation with those names being defined as macros defining partial
> lists...

A bit of background because I guess we'll hit this again when I push
the next part of this (interrupt support):

There are lists of pin names and offsets that are put into arrays
because these chips have different mixes of the same sets of pins
with, mostly, the same register offsets for those pins. So it's easier
to create the composite array for a specific chip if the sets of pins
are defined as lists.
It's not possible to have a linear range of gpios based on register
offset and ignore the offsets that don't matter because someone
thought it would be nice to put some clock registers, boot control
registers etc in the unused registers in the gpio block. Hence the
offset arrays to map out the registers that are actually GPIOs.
This driver might need to be changed to use a syscon at some point...

If anyone has any ideas to make it nicer I'll do that change as the
first patch for the next series for this driver.

> Anyway, it was already there when you got there so I guess we can
> address it separately. Queued for v5.17.

Thank you!

Cheers,

Daniel

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Re: [PATCH v3 4/5] gpio: msc313: Add support for SSD201 and SSD202D

[Daniel Palmer]

Hi Bartosz,

On Tue, 21 Dec 2021 at 00:07, Bartosz Golaszewski <brgl@bgdev.pl> wrote:
> I took a closer look now and it got even worse. This is some major
> obfuscation with those names being defined as macros defining partial
> lists...

A bit of background because I guess we'll hit this again when I push
the next part of this (interrupt support):

There are lists of pin names and offsets that are put into arrays
because these chips have different mixes of the same sets of pins
with, mostly, the same register offsets for those pins. So it's easier
to create the composite array for a specific chip if the sets of pins
are defined as lists.
It's not possible to have a linear range of gpios based on register
offset and ignore the offsets that don't matter because someone
thought it would be nice to put some clock registers, boot control
registers etc in the unused registers in the gpio block. Hence the
offset arrays to map out the registers that are actually GPIOs.
This driver might need to be changed to use a syscon at some point...

If anyone has any ideas to make it nicer I'll do that change as the
first patch for the next series for this driver.

> Anyway, it was already there when you got there so I guess we can
> address it separately. Queued for v5.17.

Thank you!

Cheers,

Daniel