Hi,

On 11/26/2014 07:44 PM, Maxime Ripard wrote:
On Wed, Nov 26, 2014 at 09:30:40AM +0100, Hans de Goede wrote:
Hi,

On 11/25/2014 07:04 PM, Maxime Ripard wrote:
Hi,

On Sun, Nov 23, 2014 at 01:54:39PM +0100, Hans de Goede wrote:
While working on pinctrl for the A31s, I noticed that function 4 of
PA15 - PA18 was missing, add these.

I also noticed that i2c3 sck / sda got assigned to PB5 & PB6, this should
be PB4 & PB5, fix this as well.

Signed-off-by: Hans de Goede <[email protected]>
---
  drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c | 9 +++++++--
  1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c 
b/drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c
index a2b4b85..fb19e15 100644
--- a/drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c
+++ b/drivers/pinctrl/sunxi/pinctrl-sun6i-a31.c
@@ -134,24 +134,28 @@ static const struct sunxi_desc_pin sun6i_a31_pins[] = {
                  SUNXI_FUNCTION(0x1, "gpio_out"),
                  SUNXI_FUNCTION(0x2, "gmac"),                /* RXD4 */
                  SUNXI_FUNCTION(0x3, "lcd1"),                /* D15 */
+                 SUNXI_FUNCTION(0x4, "clk_a_out"),

It's called clk_out_a on the A20, I'd rather stick with the same
scheme here.

Will fix.

                  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 15)), /* PA_EINT15 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(A, 16),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
                  SUNXI_FUNCTION(0x1, "gpio_out"),
                  SUNXI_FUNCTION(0x2, "gmac"),                /* RXD5 */
                  SUNXI_FUNCTION(0x3, "lcd1"),                /* D16 */
+                 SUNXI_FUNCTION(0x4, "dmic"),                /* CLK */
                  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 16)), /* PA_EINT16 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(A, 17),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
                  SUNXI_FUNCTION(0x1, "gpio_out"),
                  SUNXI_FUNCTION(0x2, "gmac"),                /* RXD6 */
                  SUNXI_FUNCTION(0x3, "lcd1"),                /* D17 */
+                 SUNXI_FUNCTION(0x4, "dmic"),                /* DIN */
                  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 17)), /* PA_EINT17 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(A, 18),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
                  SUNXI_FUNCTION(0x1, "gpio_out"),
                  SUNXI_FUNCTION(0x2, "gmac"),                /* RXD7 */
                  SUNXI_FUNCTION(0x3, "lcd1"),                /* D18 */
+                 SUNXI_FUNCTION(0x4, "clk_b_out"),
                  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 18)), /* PA_EINT18 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(A, 19),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
@@ -207,6 +211,7 @@ static const struct sunxi_desc_pin sun6i_a31_pins[] = {
                  SUNXI_FUNCTION(0x1, "gpio_out"),
                  SUNXI_FUNCTION(0x2, "gmac"),                /* MDC */
                  SUNXI_FUNCTION(0x3, "lcd1"),                /* HSYNC */
+                 SUNXI_FUNCTION(0x4, "clk_c_out"),
                  SUNXI_FUNCTION_IRQ_BANK(0x6, 0, 26)), /* PA_EINT26 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(A, 27),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
@@ -242,20 +247,20 @@ static const struct sunxi_desc_pin sun6i_a31_pins[] = {
                  SUNXI_FUNCTION(0x1, "gpio_out"),
                  SUNXI_FUNCTION(0x2, "i2s0"),                /* DO1 */
                  SUNXI_FUNCTION(0x3, "uart3"),               /* RTS */
+                 SUNXI_FUNCTION(0x4, "i2c3"),                /* SCK */
                  SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 4)),  /* PB_EINT4 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 5),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
                  SUNXI_FUNCTION(0x1, "gpio_out"),
                  SUNXI_FUNCTION(0x2, "i2s0"),                /* DO2 */
                  SUNXI_FUNCTION(0x3, "uart3"),               /* TX */
-                 SUNXI_FUNCTION(0x4, "i2c3"),                /* SCK */
+                 SUNXI_FUNCTION(0x4, "i2c3"),                /* SDA */
                  SUNXI_FUNCTION_IRQ_BANK(0x6, 1, 5)),  /* PB_EINT5 */
        SUNXI_PIN(SUNXI_PINCTRL_PIN(B, 6),
                  SUNXI_FUNCTION(0x0, "gpio_in"),
                  SUNXI_FUNCTION(0x1, "gpio_out"),
                  SUNXI_FUNCTION(0x2, "i2s0"),                /* DO3 */
                  SUNXI_FUNCTION(0x3, "uart3"),               /* RX */
-                 SUNXI_FUNCTION(0x4, "i2c3"),                /* SDA */

Where did you get that info from? The datasheet still reports that
information.

I assume with the datasheet you mean "A31 User Manual V1.20.pdf", which
was last updated on September 20, 2013. I did not check that one, now I
see where the original pinctrl code from.

So I've done some more digging:

"A31 Datasheet - v1.00 (2012-12-24).pdf" also has twi3 sck / sda on pin
PB5 / PB6 like the current pinctrl code.

But "A31 Datasheet V1.40.pdf" which has the following in its revision log:
"1.4 Dec 10,2013 Modify Pin Description"

Moves them to PB4 / PB5 and that is where I got this from (and was the only
place I initially looked), I think that this is an intentional change, and
that PB4 / PB5 are the correct pins.

Funny, I was looking at the A31 datasheet v1.4 from 10/12/2013 that is
in the allwinner's repo, and that's where I got this from (or some
earlier version of it)

https://github.com/allwinner-zh/documents/blob/master/A31/A31%20datasheet%20V1.4%2020131210.pdf

Something's weird here :)

Oh, on double checking my "A31 Datasheet V1.40.pdf" also has the ins at PB5/6, 
only the
A31s data sheet V1.4 has them at PB4/5.

I will ask Allwinner which is correct, so that we know for sure.

Yep, I saw that, thanks for clearing that up.

So lets wait for their answer.

Regards,

Hans
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