linux-kernel - [PATCH v2] i2c: i2c-rcar: Auto select RESET

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Date:   Thu, 27 Aug 2020 11:23:30 +0200
From:   Eugeniu Rosca <erosca@...adit-jv.com>
To:     Wolfram Sang <wsa+renesas@...g-engineering.com>,
        Geert Uytterhoeven <geert+renesas@...der.be>,
        <linux-i2c@...r.kernel.org>, <linux-renesas-soc@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>
CC:     <stable@...r.kernel.org>, Eugeniu Rosca <roscaeugeniu@...il.com>,
        Eugeniu Rosca <erosca@...adit-jv.com>,
        Dirk Behme <dirk.behme@...bosch.com>,
        Andy Lowe <andy_lowe@...tor.com>
Subject: [PATCH v2] i2c: i2c-rcar: Auto select RESET_CONTROLLER

From: Dirk Behme <dirk.behme@...bosch.com>

The i2c-rcar driver utilizes the Generic Reset Controller kernel
feature, so select the RESET_CONTROLLER option when the I2C_RCAR
option is selected.

Fixes: 2b16fd63059ab9 ("i2c: rcar: handle RXDMA HW behaviour on Gen3")
Cc: Wolfram Sang <wsa+renesas@...g-engineering.com>
Cc: <stable@...r.kernel.org>
Signed-off-by: Dirk Behme <dirk.behme@...bosch.com>
Signed-off-by: Andy Lowe <andy_lowe@...tor.com>
[erosca: Add "if ARCH_RCAR_GEN3" on Wolfram's request]
Signed-off-by: Eugeniu Rosca <erosca@...adit-jv.com>
---
v2:
 - Append "if ARCH_RCAR_GEN3" to "select", as requested by Wolfram
   in https://lore.kernel.org/linux-i2c/20200824120734.GA2500@ninjato/

v1:
 - https://lore.kernel.org/linux-i2c/20200824062623.9346-1-erosca@de.adit-jv.com/
---
 drivers/i2c/busses/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 293e7a0760e7..7ccbfbcb02e9 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -1181,6 +1181,7 @@ config I2C_RCAR
 	tristate "Renesas R-Car I2C Controller"
 	depends on ARCH_RENESAS || COMPILE_TEST
 	select I2C_SLAVE
+	select RESET_CONTROLLER if ARCH_RCAR_GEN3
 	help
 	  If you say yes to this option, support will be included for the
 	  R-Car I2C controller.
-- 
2.28.0