linux-kernel - [PATCH] powerpc/44x: select I2C for CURRITUCK

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Message-ID: <20231201055159.8371-1-rdunlap@infradead.org>
Date:   Thu, 30 Nov 2023 21:51:59 -0800
From:   Randy Dunlap <rdunlap@...radead.org>
To:     linux-kernel@...r.kernel.org
Cc:     Randy Dunlap <rdunlap@...radead.org>,
        kernel test robot <lkp@...el.com>,
        Alistair Popple <alistair@...ple.id.au>,
        Benjamin Herrenschmidt <benh@...nel.crashing.org>,
        linuxppc-dev@...ts.ozlabs.org,
        Michael Ellerman <mpe@...erman.id.au>
Subject: [PATCH] powerpc/44x: select I2C for CURRITUCK

Fix build errors when CURRITUCK=y and I2C is not builtin (=m or is
not set). Fixes these build errors:

powerpc-linux-ld: arch/powerpc/platforms/44x/ppc476.o: in function `avr_halt_system':
ppc476.c:(.text+0x58): undefined reference to `i2c_smbus_write_byte_data'
powerpc-linux-ld: arch/powerpc/platforms/44x/ppc476.o: in function `ppc47x_device_probe':
ppc476.c:(.init.text+0x18): undefined reference to `i2c_register_driver'

Fixes: 2a2c74b2efcb ("IBM Akebono: Add the Akebono platform")
Signed-off-by: Randy Dunlap <rdunlap@...radead.org>
Reported-by: kernel test robot <lkp@...el.com>
Closes: lore.kernel.org/r/202312010820.cmdwF5X9-lkp@...el.com
Cc: Alistair Popple <alistair@...ple.id.au>
Cc: Benjamin Herrenschmidt <benh@...nel.crashing.org>
Cc: linuxppc-dev@...ts.ozlabs.org
Cc: Michael Ellerman <mpe@...erman.id.au>
---
 arch/powerpc/platforms/44x/Kconfig |    1 +
 1 file changed, 1 insertion(+)

diff -- a/arch/powerpc/platforms/44x/Kconfig b/arch/powerpc/platforms/44x/Kconfig
--- a/arch/powerpc/platforms/44x/Kconfig
+++ b/arch/powerpc/platforms/44x/Kconfig
@@ -173,6 +173,7 @@ config ISS4xx
 config CURRITUCK
 	bool "IBM Currituck (476fpe) Support"
 	depends on PPC_47x
+	select I2C
 	select SWIOTLB
 	select 476FPE
 	select FORCE_PCI