linux-kernel - [RESEND PATCH 6/6] mfd: ti_am335x_tscadc: drop the CNTRLREG

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Date:   Sun,  7 Nov 2021 12:22:36 +0100
From:   Dario Binacchi <dariobin@...ero.it>
To:     linux-kernel@...r.kernel.org
Cc:     linux-input@...r.kernel.org, Lee Jones <lee.jones@...aro.org>,
        Rachna Patil <rachna@...com>,
        Sebastian Andrzej Siewior <bigeasy@...utronix.de>,
        Dmitry Torokhov <dmitry.torokhov@...il.com>,
        Dario Binacchi <dariobin@...ero.it>
Subject: [RESEND PATCH 6/6] mfd: ti_am335x_tscadc: drop the CNTRLREG_8WIRE macro

In TI's reference manual description for the `AFE_Pen_Ctrl' bit-field
of the TSC's CTRL register, there is no mention of 8-wire touchscreens.
Even commit f0933a60d190 ("mfd: ti_am335x_tscadc: Update logic in CTRL
register for 5-wire TS") says that the value of this bit-field must be
the same for 4-wire and 8-wire touchscreens. So let's remove the
CNTRLREG_8WIRE macro to avoid misunderstandings.

Signed-off-by: Dario Binacchi <dariobin@...ero.it>
---

 include/linux/mfd/ti_am335x_tscadc.h | 1 -
 1 file changed, 1 deletion(-)

diff --git a/include/linux/mfd/ti_am335x_tscadc.h b/include/linux/mfd/ti_am335x_tscadc.h
index ffc091b77633..155b2ab13bf8 100644
--- a/include/linux/mfd/ti_am335x_tscadc.h
+++ b/include/linux/mfd/ti_am335x_tscadc.h
@@ -126,7 +126,6 @@
 #define CNTRLREG_AFE_CTRL(val)	((val) << 5)
 #define CNTRLREG_4WIRE		CNTRLREG_AFE_CTRL(1)
 #define CNTRLREG_5WIRE		CNTRLREG_AFE_CTRL(2)
-#define CNTRLREG_8WIRE		CNTRLREG_AFE_CTRL(3)
 #define CNTRLREG_TSCENB		BIT(7)
 
 /* FIFO READ Register */
-- 
2.17.1