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Message-ID: <936fd3060662becd5485e32d5947286fcf0a3502.1677520830.git.Ryan.Wanner@microchip.com>
Date:   Mon, 27 Feb 2023 11:07:28 -0700
From:   <Ryan.Wanner@...rochip.com>
To:     <ludovic.desroches@...rochip.com>, <linus.walleij@...aro.org>,
        <nicolas.ferre@...rochip.com>, <alexandre.belloni@...tlin.com>,
        <claudiu.beznea@...rochip.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>
CC:     <linux-arm-kernel@...ts.infradead.org>,
        <linux-gpio@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
        <devicetree@...r.kernel.org>,
        Ryan Wanner <Ryan.Wanner@...rochip.com>
Subject: [PATCH v3 2/2] dt-bindings:pinctrl:at91:Adding macros for sama7g5

From: Ryan Wanner <Ryan.Wanner@...rochip.com>

Adding macros for sama7g drive strength.

Signed-off-by: Ryan Wanner <Ryan.Wanner@...rochip.com>
---
changes since v1:
- Fix ABI break.
- Add explanation for drive strength macros.

changes since v2:
-Fix subject prefix to match subsystem.
-Add more in-depth discription of sama7g5 define values.
-Fix formatting issues.

 include/dt-bindings/pinctrl/at91.h | 15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/include/dt-bindings/pinctrl/at91.h b/include/dt-bindings/pinctrl/at91.h
index e8e117306b1b..a02bee76b1fb 100644
--- a/include/dt-bindings/pinctrl/at91.h
+++ b/include/dt-bindings/pinctrl/at91.h
@@ -42,8 +42,21 @@
 #define AT91_PERIPH_C		3
 #define AT91_PERIPH_D		4
 
-#define ATMEL_PIO_DRVSTR_LO	1
+/*These macros are for all other at91 pinctrl drivers*/
+#define ATMEL_PIO_DRVSTR_LO	0
+#define ATMEL_PIO_DRVSTR_LO_1	1
 #define ATMEL_PIO_DRVSTR_ME	2
 #define ATMEL_PIO_DRVSTR_HI	3
 
+/* These macros are for the sama7g5 pinctrl driver
+ * Low D is low drive for GPIO mode or any non high-speed peripheral else Type D output impedance
+ * Hi A is high drive for GPIO mode or any non high-speed peripheral else Type A output impedance
+ * Low C is low drive for GPIO mode or any non high-speed peripheral else Type C output impedance
+ * Low B is low drive for GPIO mode or any non high-speed peripheral else Type B output impedance
+*/
+#define ATMEL_PIO_DRVSTR_LO_D	0
+#define ATMEL_PIO_DRVSTR_HI_A	1
+#define ATMEL_PIO_DRVSTR_LO_C	2
+#define ATMEL_PIO_DRVSTR_LO_B	3
+
 #endif /* __DT_BINDINGS_AT91_PINCTRL_H__ */
-- 
2.37.2

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