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* [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-07  8:12 ` Krzysztof Kozlowski
  0 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-07  8:12 UTC (permalink / raw)
  To: Wolfram Sang, Jean Delvare, Jarkko Nikula, Krzysztof Kozlowski,
	linux-i2c, linux-kernel
  Cc: Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

Some of the I2C bus drivers can be compile tested to increase build
coverage.  This requires also:
1. Adding dependencies on COMMON_CLK for BCM2835 and Meson I2C
   controllers,
2. Adding 'if' conditional to 'default y' so they will not get enabled
   by default on all other architectures,
3. Limiting few compile test options to supported architectures (which
   provide the readsX()/writesX() primitives).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v1:
1. Address Geert's comments (split depends, comment on weird
   architecture selection).
---
 drivers/i2c/busses/Kconfig | 66 +++++++++++++++++++++++++---------------------
 1 file changed, 36 insertions(+), 30 deletions(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 6a0aa76859f3..132e6f374cd7 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -367,7 +367,8 @@ comment "I2C system bus drivers (mostly embedded / system-on-chip)"
 
 config I2C_ALTERA
 	tristate "Altera Soft IP I2C"
-	depends on (ARCH_SOCFPGA || NIOS2) && OF
+	depends on ARCH_SOCFPGA || NIOS2 || COMPILE_TEST
+	depends on OF
 	help
 	  If you say yes to this option, support will be included for the
 	  Altera Soft IP I2C interfaces on SoCFPGA and Nios2 architectures.
@@ -387,7 +388,7 @@ config I2C_ASPEED
 
 config I2C_AT91
 	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
-	depends on ARCH_AT91
+	depends on ARCH_AT91 || COMPILE_TEST
 	help
 	  This supports the use of the I2C interface on Atmel AT91
 	  processors.
@@ -440,7 +441,8 @@ config I2C_AXXIA
 
 config I2C_BCM2835
 	tristate "Broadcom BCM2835 I2C controller"
-	depends on ARCH_BCM2835 || ARCH_BRCMSTB
+	depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
+	depends on COMMON_CLK
 	help
 	  If you say yes to this option, support will be included for the
 	  BCM2835 I2C controller.
@@ -463,8 +465,8 @@ config I2C_BCM_IPROC
 
 config I2C_BCM_KONA
 	tristate "BCM Kona I2C adapter"
-	depends on ARCH_BCM_MOBILE
-	default y
+	depends on ARCH_BCM_MOBILE || COMPILE_TEST
+	default y if ARCH_BCM_MOBILE
 	help
 	  If you say yes to this option, support will be included for the
 	  I2C interface on the Broadcom Kona family of processors.
@@ -511,7 +513,7 @@ config I2C_CPM
 
 config I2C_DAVINCI
 	tristate "DaVinci I2C driver"
-	depends on ARCH_DAVINCI || ARCH_KEYSTONE
+	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
 	help
 	  Support for TI DaVinci I2C controller driver.
 
@@ -572,7 +574,7 @@ config I2C_DESIGNWARE_BAYTRAIL
 
 config I2C_DIGICOLOR
 	tristate "Conexant Digicolor I2C driver"
-	depends on ARCH_DIGICOLOR
+	depends on ARCH_DIGICOLOR || COMPILE_TEST
 	help
 	  Support for Conexant Digicolor SoCs (CX92755) I2C controller driver.
 
@@ -611,8 +613,9 @@ config I2C_EMEV2
 
 config I2C_EXYNOS5
 	tristate "Exynos5 high-speed I2C driver"
-	depends on ARCH_EXYNOS && OF
-	default y
+	depends on OF
+	depends on ARCH_EXYNOS || COMPILE_TEST
+	default y if ARCH_EXYNOS
 	help
 	  High-speed I2C controller on Exynos5 based Samsung SoCs.
 
@@ -634,7 +637,7 @@ config I2C_GPIO_FAULT_INJECTOR
 
 config I2C_HIGHLANDER
 	tristate "Highlander FPGA SMBus interface"
-	depends on SH_HIGHLANDER
+	depends on SH_HIGHLANDER || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for
 	  the SMBus interface located in the FPGA on various Highlander
@@ -686,7 +689,7 @@ config I2C_IMX_LPI2C
 
 config I2C_IOP3XX
 	tristate "Intel IOPx3xx and IXP4xx on-chip I2C interface"
-	depends on ARCH_IOP32X || ARCH_IXP4XX
+	depends on ARCH_IOP32X || ARCH_IXP4XX || COMPILE_TEST
 	help
 	  Say Y here if you want to use the IIC bus controller on
 	  the Intel IOPx3xx I/O Processors or IXP4xx Network Processors.
@@ -726,6 +729,7 @@ config I2C_LPC2K
 config I2C_MESON
 	tristate "Amlogic Meson I2C controller"
 	depends on ARCH_MESON || COMPILE_TEST
+	depends on COMMON_CLK
 	help
 	  If you say yes to this option, support will be included for the
 	  I2C interface on the Amlogic Meson family of SoCs.
@@ -759,7 +763,7 @@ config I2C_MT7621
 
 config I2C_MV64XXX
 	tristate "Marvell mv64xxx I2C Controller"
-	depends on MV64X60 || PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU
+	depends on MV64X60 || PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for the
 	  built-in I2C interface on the Marvell 64xxx line of host bridges.
@@ -770,7 +774,7 @@ config I2C_MV64XXX
 
 config I2C_MXS
 	tristate "Freescale i.MX28 I2C interface"
-	depends on SOC_IMX28
+	depends on SOC_IMX28 || COMPILE_TEST
 	select STMP_DEVICE
 	help
 	  Say Y here if you want to use the I2C bus controller on
@@ -799,7 +803,7 @@ config I2C_OCORES
 
 config I2C_OMAP
 	tristate "OMAP I2C adapter"
-	depends on ARCH_OMAP || ARCH_K3
+	depends on ARCH_OMAP || ARCH_K3 || COMPILE_TEST
 	default y if MACH_OMAP_H3 || MACH_OMAP_OSK
 	help
 	  If you say yes to this option, support will be included for the
@@ -833,7 +837,7 @@ config I2C_PCA_PLATFORM
 
 config I2C_PMCMSP
 	tristate "PMC MSP I2C TWI Controller"
-	depends on PMC_MSP
+	depends on PMC_MSP || COMPILE_TEST
 	help
 	  This driver supports the PMC TWI controller on MSP devices.
 
@@ -842,7 +846,7 @@ config I2C_PMCMSP
 
 config I2C_PNX
 	tristate "I2C bus support for Philips PNX and NXP LPC targets"
-	depends on ARCH_LPC32XX
+	depends on ARCH_LPC32XX || COMPILE_TEST
 	help
 	  This driver supports the Philips IP3204 I2C IP block master and/or
 	  slave controller
@@ -863,7 +867,7 @@ config I2C_PUV3
 
 config I2C_PXA
 	tristate "Intel PXA2XX I2C adapter"
-	depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF)
+	depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF) || COMPILE_TEST
 	help
 	  If you have devices in the PXA I2C bus, say yes to this option.
 	  This driver can also be built as a module.  If so, the module
@@ -933,7 +937,7 @@ config HAVE_S3C2410_I2C
 
 config I2C_S3C2410
 	tristate "S3C2410 I2C Driver"
-	depends on HAVE_S3C2410_I2C
+	depends on HAVE_S3C2410_I2C || COMPILE_TEST
 	help
 	  Say Y here to include support for I2C controller in the
 	  Samsung SoCs.
@@ -971,7 +975,7 @@ config I2C_SIMTEC
 
 config I2C_SIRF
 	tristate "CSR SiRFprimaII I2C interface"
-	depends on ARCH_SIRF
+	depends on ARCH_SIRF || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for the
 	  CSR SiRFprimaII I2C interface.
@@ -981,14 +985,14 @@ config I2C_SIRF
 
 config I2C_SPRD
 	tristate "Spreadtrum I2C interface"
-	depends on I2C=y && ARCH_SPRD
+	depends on I2C=y && (ARCH_SPRD || COMPILE_TEST)
 	help
 	  If you say yes to this option, support will be included for the
 	  Spreadtrum I2C interface.
 
 config I2C_ST
 	tristate "STMicroelectronics SSC I2C support"
-	depends on ARCH_STI
+	depends on ARCH_STI || COMPILE_TEST
 	help
 	  Enable this option to add support for STMicroelectronics SoCs
 	  hardware SSC (Synchronous Serial Controller) as an I2C controller.
@@ -1019,7 +1023,7 @@ config I2C_STM32F7
 
 config I2C_STU300
 	tristate "ST Microelectronics DDC I2C interface"
-	depends on MACH_U300
+	depends on MACH_U300 || COMPILE_TEST
 	default y if MACH_U300
 	help
 	  If you say yes to this option, support will be included for the
@@ -1055,15 +1059,16 @@ config I2C_SYNQUACER
 
 config I2C_TEGRA
 	tristate "NVIDIA Tegra internal I2C controller"
-	depends on ARCH_TEGRA
+	depends on ARCH_TEGRA || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
+	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
 	help
 	  If you say yes to this option, support will be included for the
 	  I2C controller embedded in NVIDIA Tegra SOCs
 
 config I2C_TEGRA_BPMP
 	tristate "NVIDIA Tegra BPMP I2C controller"
-	depends on TEGRA_BPMP
-	default y
+	depends on TEGRA_BPMP || COMPILE_TEST
+	default y if TEGRA_BPMP
 	help
 	  If you say yes to this option, support will be included for the I2C
 	  controller embedded in NVIDIA Tegra SoCs accessed via the BPMP.
@@ -1101,7 +1106,7 @@ config I2C_VERSATILE
 
 config I2C_WMT
 	tristate "Wondermedia WM8xxx SoC I2C bus support"
-	depends on ARCH_VT8500
+	depends on ARCH_VT8500 || COMPILE_TEST
 	help
 	  Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
 	  SoCs.
@@ -1142,7 +1147,7 @@ config I2C_XILINX
 
 config I2C_XLR
 	tristate "Netlogic XLR and Sigma Designs I2C support"
-	depends on CPU_XLR || ARCH_TANGO
+	depends on CPU_XLR || ARCH_TANGO || COMPILE_TEST
 	help
 	  This driver enables support for the on-chip I2C interface of
 	  the Netlogic XLR/XLS MIPS processors and Sigma Designs SOCs.
@@ -1328,7 +1333,7 @@ config I2C_ICY
 
 config I2C_MLXCPLD
 	tristate "Mellanox I2C driver"
-	depends on X86_64
+	depends on X86_64 || COMPILE_TEST
 	help
 	  This exposes the Mellanox platform I2C busses to the linux I2C layer
 	  for X86 based systems.
@@ -1403,8 +1408,9 @@ config I2C_OPAL
 
 config I2C_ZX2967
 	tristate "ZTE ZX2967 I2C support"
-	depends on ARCH_ZX
-	default y
+	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
+	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
+	default y if ARCH_ZX
 	help
 	  Selecting this option will add ZX2967 I2C driver.
 	  This driver can also be built as a module. If so, the module will be
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-07  8:12 ` Krzysztof Kozlowski
  0 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-07  8:12 UTC (permalink / raw)
  To: Wolfram Sang, Jean Delvare, Jarkko Nikula, Krzysztof Kozlowski,
	linux-i2c, linux-kernel
  Cc: Stephen Rothwell, Greg KH, Kishon Vijay Abraham I,
	Linux Next Mailing List, Geert Uytterhoeven, Linux ARM

Some of the I2C bus drivers can be compile tested to increase build
coverage.  This requires also:
1. Adding dependencies on COMMON_CLK for BCM2835 and Meson I2C
   controllers,
2. Adding 'if' conditional to 'default y' so they will not get enabled
   by default on all other architectures,
3. Limiting few compile test options to supported architectures (which
   provide the readsX()/writesX() primitives).

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v1:
1. Address Geert's comments (split depends, comment on weird
   architecture selection).
---
 drivers/i2c/busses/Kconfig | 66 +++++++++++++++++++++++++---------------------
 1 file changed, 36 insertions(+), 30 deletions(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 6a0aa76859f3..132e6f374cd7 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -367,7 +367,8 @@ comment "I2C system bus drivers (mostly embedded / system-on-chip)"
 
 config I2C_ALTERA
 	tristate "Altera Soft IP I2C"
-	depends on (ARCH_SOCFPGA || NIOS2) && OF
+	depends on ARCH_SOCFPGA || NIOS2 || COMPILE_TEST
+	depends on OF
 	help
 	  If you say yes to this option, support will be included for the
 	  Altera Soft IP I2C interfaces on SoCFPGA and Nios2 architectures.
@@ -387,7 +388,7 @@ config I2C_ASPEED
 
 config I2C_AT91
 	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
-	depends on ARCH_AT91
+	depends on ARCH_AT91 || COMPILE_TEST
 	help
 	  This supports the use of the I2C interface on Atmel AT91
 	  processors.
@@ -440,7 +441,8 @@ config I2C_AXXIA
 
 config I2C_BCM2835
 	tristate "Broadcom BCM2835 I2C controller"
-	depends on ARCH_BCM2835 || ARCH_BRCMSTB
+	depends on ARCH_BCM2835 || ARCH_BRCMSTB || COMPILE_TEST
+	depends on COMMON_CLK
 	help
 	  If you say yes to this option, support will be included for the
 	  BCM2835 I2C controller.
@@ -463,8 +465,8 @@ config I2C_BCM_IPROC
 
 config I2C_BCM_KONA
 	tristate "BCM Kona I2C adapter"
-	depends on ARCH_BCM_MOBILE
-	default y
+	depends on ARCH_BCM_MOBILE || COMPILE_TEST
+	default y if ARCH_BCM_MOBILE
 	help
 	  If you say yes to this option, support will be included for the
 	  I2C interface on the Broadcom Kona family of processors.
@@ -511,7 +513,7 @@ config I2C_CPM
 
 config I2C_DAVINCI
 	tristate "DaVinci I2C driver"
-	depends on ARCH_DAVINCI || ARCH_KEYSTONE
+	depends on ARCH_DAVINCI || ARCH_KEYSTONE || COMPILE_TEST
 	help
 	  Support for TI DaVinci I2C controller driver.
 
@@ -572,7 +574,7 @@ config I2C_DESIGNWARE_BAYTRAIL
 
 config I2C_DIGICOLOR
 	tristate "Conexant Digicolor I2C driver"
-	depends on ARCH_DIGICOLOR
+	depends on ARCH_DIGICOLOR || COMPILE_TEST
 	help
 	  Support for Conexant Digicolor SoCs (CX92755) I2C controller driver.
 
@@ -611,8 +613,9 @@ config I2C_EMEV2
 
 config I2C_EXYNOS5
 	tristate "Exynos5 high-speed I2C driver"
-	depends on ARCH_EXYNOS && OF
-	default y
+	depends on OF
+	depends on ARCH_EXYNOS || COMPILE_TEST
+	default y if ARCH_EXYNOS
 	help
 	  High-speed I2C controller on Exynos5 based Samsung SoCs.
 
@@ -634,7 +637,7 @@ config I2C_GPIO_FAULT_INJECTOR
 
 config I2C_HIGHLANDER
 	tristate "Highlander FPGA SMBus interface"
-	depends on SH_HIGHLANDER
+	depends on SH_HIGHLANDER || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for
 	  the SMBus interface located in the FPGA on various Highlander
@@ -686,7 +689,7 @@ config I2C_IMX_LPI2C
 
 config I2C_IOP3XX
 	tristate "Intel IOPx3xx and IXP4xx on-chip I2C interface"
-	depends on ARCH_IOP32X || ARCH_IXP4XX
+	depends on ARCH_IOP32X || ARCH_IXP4XX || COMPILE_TEST
 	help
 	  Say Y here if you want to use the IIC bus controller on
 	  the Intel IOPx3xx I/O Processors or IXP4xx Network Processors.
@@ -726,6 +729,7 @@ config I2C_LPC2K
 config I2C_MESON
 	tristate "Amlogic Meson I2C controller"
 	depends on ARCH_MESON || COMPILE_TEST
+	depends on COMMON_CLK
 	help
 	  If you say yes to this option, support will be included for the
 	  I2C interface on the Amlogic Meson family of SoCs.
@@ -759,7 +763,7 @@ config I2C_MT7621
 
 config I2C_MV64XXX
 	tristate "Marvell mv64xxx I2C Controller"
-	depends on MV64X60 || PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU
+	depends on MV64X60 || PLAT_ORION || ARCH_SUNXI || ARCH_MVEBU || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for the
 	  built-in I2C interface on the Marvell 64xxx line of host bridges.
@@ -770,7 +774,7 @@ config I2C_MV64XXX
 
 config I2C_MXS
 	tristate "Freescale i.MX28 I2C interface"
-	depends on SOC_IMX28
+	depends on SOC_IMX28 || COMPILE_TEST
 	select STMP_DEVICE
 	help
 	  Say Y here if you want to use the I2C bus controller on
@@ -799,7 +803,7 @@ config I2C_OCORES
 
 config I2C_OMAP
 	tristate "OMAP I2C adapter"
-	depends on ARCH_OMAP || ARCH_K3
+	depends on ARCH_OMAP || ARCH_K3 || COMPILE_TEST
 	default y if MACH_OMAP_H3 || MACH_OMAP_OSK
 	help
 	  If you say yes to this option, support will be included for the
@@ -833,7 +837,7 @@ config I2C_PCA_PLATFORM
 
 config I2C_PMCMSP
 	tristate "PMC MSP I2C TWI Controller"
-	depends on PMC_MSP
+	depends on PMC_MSP || COMPILE_TEST
 	help
 	  This driver supports the PMC TWI controller on MSP devices.
 
@@ -842,7 +846,7 @@ config I2C_PMCMSP
 
 config I2C_PNX
 	tristate "I2C bus support for Philips PNX and NXP LPC targets"
-	depends on ARCH_LPC32XX
+	depends on ARCH_LPC32XX || COMPILE_TEST
 	help
 	  This driver supports the Philips IP3204 I2C IP block master and/or
 	  slave controller
@@ -863,7 +867,7 @@ config I2C_PUV3
 
 config I2C_PXA
 	tristate "Intel PXA2XX I2C adapter"
-	depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF)
+	depends on ARCH_PXA || ARCH_MMP || ARCH_MVEBU || (X86_32 && PCI && OF) || COMPILE_TEST
 	help
 	  If you have devices in the PXA I2C bus, say yes to this option.
 	  This driver can also be built as a module.  If so, the module
@@ -933,7 +937,7 @@ config HAVE_S3C2410_I2C
 
 config I2C_S3C2410
 	tristate "S3C2410 I2C Driver"
-	depends on HAVE_S3C2410_I2C
+	depends on HAVE_S3C2410_I2C || COMPILE_TEST
 	help
 	  Say Y here to include support for I2C controller in the
 	  Samsung SoCs.
@@ -971,7 +975,7 @@ config I2C_SIMTEC
 
 config I2C_SIRF
 	tristate "CSR SiRFprimaII I2C interface"
-	depends on ARCH_SIRF
+	depends on ARCH_SIRF || COMPILE_TEST
 	help
 	  If you say yes to this option, support will be included for the
 	  CSR SiRFprimaII I2C interface.
@@ -981,14 +985,14 @@ config I2C_SIRF
 
 config I2C_SPRD
 	tristate "Spreadtrum I2C interface"
-	depends on I2C=y && ARCH_SPRD
+	depends on I2C=y && (ARCH_SPRD || COMPILE_TEST)
 	help
 	  If you say yes to this option, support will be included for the
 	  Spreadtrum I2C interface.
 
 config I2C_ST
 	tristate "STMicroelectronics SSC I2C support"
-	depends on ARCH_STI
+	depends on ARCH_STI || COMPILE_TEST
 	help
 	  Enable this option to add support for STMicroelectronics SoCs
 	  hardware SSC (Synchronous Serial Controller) as an I2C controller.
@@ -1019,7 +1023,7 @@ config I2C_STM32F7
 
 config I2C_STU300
 	tristate "ST Microelectronics DDC I2C interface"
-	depends on MACH_U300
+	depends on MACH_U300 || COMPILE_TEST
 	default y if MACH_U300
 	help
 	  If you say yes to this option, support will be included for the
@@ -1055,15 +1059,16 @@ config I2C_SYNQUACER
 
 config I2C_TEGRA
 	tristate "NVIDIA Tegra internal I2C controller"
-	depends on ARCH_TEGRA
+	depends on ARCH_TEGRA || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
+	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
 	help
 	  If you say yes to this option, support will be included for the
 	  I2C controller embedded in NVIDIA Tegra SOCs
 
 config I2C_TEGRA_BPMP
 	tristate "NVIDIA Tegra BPMP I2C controller"
-	depends on TEGRA_BPMP
-	default y
+	depends on TEGRA_BPMP || COMPILE_TEST
+	default y if TEGRA_BPMP
 	help
 	  If you say yes to this option, support will be included for the I2C
 	  controller embedded in NVIDIA Tegra SoCs accessed via the BPMP.
@@ -1101,7 +1106,7 @@ config I2C_VERSATILE
 
 config I2C_WMT
 	tristate "Wondermedia WM8xxx SoC I2C bus support"
-	depends on ARCH_VT8500
+	depends on ARCH_VT8500 || COMPILE_TEST
 	help
 	  Say yes if you want to support the I2C bus on Wondermedia 8xxx-series
 	  SoCs.
@@ -1142,7 +1147,7 @@ config I2C_XILINX
 
 config I2C_XLR
 	tristate "Netlogic XLR and Sigma Designs I2C support"
-	depends on CPU_XLR || ARCH_TANGO
+	depends on CPU_XLR || ARCH_TANGO || COMPILE_TEST
 	help
 	  This driver enables support for the on-chip I2C interface of
 	  the Netlogic XLR/XLS MIPS processors and Sigma Designs SOCs.
@@ -1328,7 +1333,7 @@ config I2C_ICY
 
 config I2C_MLXCPLD
 	tristate "Mellanox I2C driver"
-	depends on X86_64
+	depends on X86_64 || COMPILE_TEST
 	help
 	  This exposes the Mellanox platform I2C busses to the linux I2C layer
 	  for X86 based systems.
@@ -1403,8 +1408,9 @@ config I2C_OPAL
 
 config I2C_ZX2967
 	tristate "ZTE ZX2967 I2C support"
-	depends on ARCH_ZX
-	default y
+	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
+	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
+	default y if ARCH_ZX
 	help
 	  Selecting this option will add ZX2967 I2C driver.
 	  This driver can also be built as a module. If so, the module will be
-- 
2.7.4


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v2 2/2] i2c: exynos: Update Kconfig documentation
  2020-01-07  8:12 ` Krzysztof Kozlowski
@ 2020-01-07  8:12   ` Krzysztof Kozlowski
  -1 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-07  8:12 UTC (permalink / raw)
  To: Wolfram Sang, Jean Delvare, Jarkko Nikula, Krzysztof Kozlowski,
	linux-i2c, linux-kernel
  Cc: Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

Update the help text to reflect current support devices:
1. The Exynos high speed I2C driver supports Exynos5 (ARMv7), Exynos5433
   and Exynos7 (both ARMv8) SoCs,
2. The S3C I2C driver supports S3C, S5Pv210 and Exynos{3,4,5} SoCs.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v1:
1. New patch
---
 drivers/i2c/busses/Kconfig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 132e6f374cd7..43984d5a7fad 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -612,12 +612,12 @@ config I2C_EMEV2
 	  I2C interface on the Renesas Electronics EM/EV family of processors.
 
 config I2C_EXYNOS5
-	tristate "Exynos5 high-speed I2C driver"
+	tristate "Exynos high-speed I2C driver"
 	depends on OF
 	depends on ARCH_EXYNOS || COMPILE_TEST
 	default y if ARCH_EXYNOS
 	help
-	  High-speed I2C controller on Exynos5 based Samsung SoCs.
+	  High-speed I2C controller on Exynos5 and newer Samsung SoCs.
 
 config I2C_GPIO
 	tristate "GPIO-based bitbanging I2C"
@@ -936,11 +936,11 @@ config HAVE_S3C2410_I2C
 	  respective Kconfig file.
 
 config I2C_S3C2410
-	tristate "S3C2410 I2C Driver"
+	tristate "S3C/Exynos I2C Driver"
 	depends on HAVE_S3C2410_I2C || COMPILE_TEST
 	help
 	  Say Y here to include support for I2C controller in the
-	  Samsung SoCs.
+	  Samsung SoCs (S3C, S5Pv210, Exynos).
 
 config I2C_SH7760
 	tristate "Renesas SH7760 I2C Controller"
-- 
2.7.4


^ permalink raw reply related	[flat|nested] 26+ messages in thread

* [PATCH v2 2/2] i2c: exynos: Update Kconfig documentation
@ 2020-01-07  8:12   ` Krzysztof Kozlowski
  0 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-07  8:12 UTC (permalink / raw)
  To: Wolfram Sang, Jean Delvare, Jarkko Nikula, Krzysztof Kozlowski,
	linux-i2c, linux-kernel
  Cc: Stephen Rothwell, Greg KH, Kishon Vijay Abraham I,
	Linux Next Mailing List, Geert Uytterhoeven, Linux ARM

Update the help text to reflect current support devices:
1. The Exynos high speed I2C driver supports Exynos5 (ARMv7), Exynos5433
   and Exynos7 (both ARMv8) SoCs,
2. The S3C I2C driver supports S3C, S5Pv210 and Exynos{3,4,5} SoCs.

Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

---

Changes since v1:
1. New patch
---
 drivers/i2c/busses/Kconfig | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 132e6f374cd7..43984d5a7fad 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -612,12 +612,12 @@ config I2C_EMEV2
 	  I2C interface on the Renesas Electronics EM/EV family of processors.
 
 config I2C_EXYNOS5
-	tristate "Exynos5 high-speed I2C driver"
+	tristate "Exynos high-speed I2C driver"
 	depends on OF
 	depends on ARCH_EXYNOS || COMPILE_TEST
 	default y if ARCH_EXYNOS
 	help
-	  High-speed I2C controller on Exynos5 based Samsung SoCs.
+	  High-speed I2C controller on Exynos5 and newer Samsung SoCs.
 
 config I2C_GPIO
 	tristate "GPIO-based bitbanging I2C"
@@ -936,11 +936,11 @@ config HAVE_S3C2410_I2C
 	  respective Kconfig file.
 
 config I2C_S3C2410
-	tristate "S3C2410 I2C Driver"
+	tristate "S3C/Exynos I2C Driver"
 	depends on HAVE_S3C2410_I2C || COMPILE_TEST
 	help
 	  Say Y here to include support for I2C controller in the
-	  Samsung SoCs.
+	  Samsung SoCs (S3C, S5Pv210, Exynos).
 
 config I2C_SH7760
 	tristate "Renesas SH7760 I2C Controller"
-- 
2.7.4


_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply related	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-07  8:12 ` Krzysztof Kozlowski
  (?)
  (?)
@ 2020-01-08 17:21 ` kbuild test robot
  2020-01-13 10:46   ` Krzysztof Kozlowski
  -1 siblings, 1 reply; 26+ messages in thread
From: kbuild test robot @ 2020-01-08 17:21 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 4139 bytes --]

Hi Krzysztof,

I love your patch! Perhaps something to improve:

[auto build test WARNING on wsa/i2c/for-next]
[also build test WARNING on v5.5-rc5 next-20200106]
[if your patch is applied to the wrong git tree, please drop us a note to help
improve the system. BTW, we also suggest to use '--base' option to specify the
base tree in git format-patch, please see https://stackoverflow.com/a/37406982]

url:    https://github.com/0day-ci/linux/commits/Krzysztof-Kozlowski/i2c-Enable-compile-testing-for-some-of-drivers/20200107-164808
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next
reproduce:
        # apt-get install sparse
        # sparse version: v0.6.1-129-g341daf20-dirty
        make ARCH=x86_64 allmodconfig
        make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>


sparse warnings: (new ones prefixed by >>)

>> drivers/i2c/busses/i2c-stu300.c:446:17: sparse: sparse: cast removes address space '<asn:2>' of expression

vim +446 drivers/i2c/busses/i2c-stu300.c

18904c0ecdf2cf Linus Walleij 2009-06-13  421  
18904c0ecdf2cf Linus Walleij 2009-06-13  422  /*
18904c0ecdf2cf Linus Walleij 2009-06-13  423   * Waits for the busy bit to go low by repeated polling.
18904c0ecdf2cf Linus Walleij 2009-06-13  424   */
18904c0ecdf2cf Linus Walleij 2009-06-13  425  #define BUSY_RELEASE_ATTEMPTS 10
18904c0ecdf2cf Linus Walleij 2009-06-13  426  static int stu300_wait_while_busy(struct stu300_dev *dev)
18904c0ecdf2cf Linus Walleij 2009-06-13  427  {
18904c0ecdf2cf Linus Walleij 2009-06-13  428  	unsigned long timeout;
18904c0ecdf2cf Linus Walleij 2009-06-13  429  	int i;
18904c0ecdf2cf Linus Walleij 2009-06-13  430  
18904c0ecdf2cf Linus Walleij 2009-06-13  431  	for (i = 0; i < BUSY_RELEASE_ATTEMPTS; i++) {
18904c0ecdf2cf Linus Walleij 2009-06-13  432  		timeout = jiffies + STU300_TIMEOUT;
18904c0ecdf2cf Linus Walleij 2009-06-13  433  
18904c0ecdf2cf Linus Walleij 2009-06-13  434  		while (!time_after(jiffies, timeout)) {
18904c0ecdf2cf Linus Walleij 2009-06-13  435  			/* Is not busy? */
18904c0ecdf2cf Linus Walleij 2009-06-13  436  			if ((stu300_r8(dev->virtbase + I2C_SR1) &
18904c0ecdf2cf Linus Walleij 2009-06-13  437  			     I2C_SR1_BUSY_IND) == 0)
18904c0ecdf2cf Linus Walleij 2009-06-13  438  				return 0;
18904c0ecdf2cf Linus Walleij 2009-06-13  439  			msleep(1);
18904c0ecdf2cf Linus Walleij 2009-06-13  440  		}
18904c0ecdf2cf Linus Walleij 2009-06-13  441  
18904c0ecdf2cf Linus Walleij 2009-06-13  442  		dev_err(&dev->pdev->dev, "transaction timed out "
18904c0ecdf2cf Linus Walleij 2009-06-13  443  			"waiting for device to be free (not busy). "
18904c0ecdf2cf Linus Walleij 2009-06-13  444  		       "Attempt: %d\n", i+1);
18904c0ecdf2cf Linus Walleij 2009-06-13  445  
18904c0ecdf2cf Linus Walleij 2009-06-13 @446  		dev_err(&dev->pdev->dev, "base address = "
18904c0ecdf2cf Linus Walleij 2009-06-13  447  			"0x%08x, reinit hardware\n", (u32) dev->virtbase);
18904c0ecdf2cf Linus Walleij 2009-06-13  448  
18904c0ecdf2cf Linus Walleij 2009-06-13  449  		(void) stu300_init_hw(dev);
18904c0ecdf2cf Linus Walleij 2009-06-13  450  	}
18904c0ecdf2cf Linus Walleij 2009-06-13  451  
18904c0ecdf2cf Linus Walleij 2009-06-13  452  	dev_err(&dev->pdev->dev, "giving up after %d attempts "
18904c0ecdf2cf Linus Walleij 2009-06-13  453  		"to reset the bus.\n",  BUSY_RELEASE_ATTEMPTS);
18904c0ecdf2cf Linus Walleij 2009-06-13  454  
18904c0ecdf2cf Linus Walleij 2009-06-13  455  	return -ETIMEDOUT;
18904c0ecdf2cf Linus Walleij 2009-06-13  456  }
18904c0ecdf2cf Linus Walleij 2009-06-13  457  

:::::: The code at line 446 was first introduced by commit
:::::: 18904c0ecdf2cf22347da2adc4b273e9570333d8 i2c: ST DDC I2C U300 bus driver v3

:::::: TO: Linus Walleij <linus.walleij@stericsson.com>
:::::: CC: Ben Dooks <ben-linux@fluff.org>

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-07  8:12 ` Krzysztof Kozlowski
@ 2020-01-10 11:40   ` Dan Carpenter
  -1 siblings, 0 replies; 26+ messages in thread
From: Dan Carpenter @ 2020-01-10 11:40 UTC (permalink / raw)
  To: kbuild

[-- Attachment #1: Type: text/plain, Size: 8873 bytes --]

Hi Krzysztof,

url:    https://github.com/0day-ci/linux/commits/Krzysztof-Kozlowski/i2c-Enable-compile-testing-for-some-of-drivers/20200107-164808
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

New smatch warnings:
drivers/i2c/busses/i2c-iop3xx.c:437 iop3xx_i2c_probe() warn: possible memory leak of 'new_adapter'

Old smatch warnings:
drivers/i2c/busses/i2c-iop3xx.c:442 iop3xx_i2c_probe() warn: possible memory leak of 'new_adapter'

# https://github.com/0day-ci/linux/commit/16f23a6a6c2387ec6252ffba16d110ace21c85cf
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout 16f23a6a6c2387ec6252ffba16d110ace21c85cf
vim +/new_adapter +437 drivers/i2c/busses/i2c-iop3xx.c

^1da177e4c3f41 Linus Torvalds   2005-04-16  413  static int
3ae5eaec1d2d9c Russell King     2005-11-09  414  iop3xx_i2c_probe(struct platform_device *pdev)
^1da177e4c3f41 Linus Torvalds   2005-04-16  415  {
^1da177e4c3f41 Linus Torvalds   2005-04-16  416  	struct resource *res;
489447380a2921 David Vrabel     2006-01-19  417  	int ret, irq;
^1da177e4c3f41 Linus Torvalds   2005-04-16  418  	struct i2c_adapter *new_adapter;
^1da177e4c3f41 Linus Torvalds   2005-04-16  419  	struct i2c_algo_iop3xx_data *adapter_data;
^1da177e4c3f41 Linus Torvalds   2005-04-16  420  
5263ebb51eb098 Deepak Saxena    2005-10-17  421  	new_adapter = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
^1da177e4c3f41 Linus Torvalds   2005-04-16  422  	if (!new_adapter) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  423  		ret = -ENOMEM;
^1da177e4c3f41 Linus Torvalds   2005-04-16  424  		goto out;
^1da177e4c3f41 Linus Torvalds   2005-04-16  425  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  426  
5263ebb51eb098 Deepak Saxena    2005-10-17  427  	adapter_data = kzalloc(sizeof(struct i2c_algo_iop3xx_data), GFP_KERNEL);
^1da177e4c3f41 Linus Torvalds   2005-04-16  428  	if (!adapter_data) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  429  		ret = -ENOMEM;
^1da177e4c3f41 Linus Torvalds   2005-04-16  430  		goto free_adapter;
^1da177e4c3f41 Linus Torvalds   2005-04-16  431  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  432  
fdb7e884ad617f Linus Walleij    2019-06-01  433  	adapter_data->gpio_scl = devm_gpiod_get_optional(&pdev->dev,
fdb7e884ad617f Linus Walleij    2019-06-01  434  							 "scl",
fdb7e884ad617f Linus Walleij    2019-06-01  435  							 GPIOD_ASIS);
fdb7e884ad617f Linus Walleij    2019-06-01  436  	if (IS_ERR(adapter_data->gpio_scl))
fdb7e884ad617f Linus Walleij    2019-06-01 @437  		return PTR_ERR(adapter_data->gpio_scl);
                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
leak

fdb7e884ad617f Linus Walleij    2019-06-01  438  	adapter_data->gpio_sda = devm_gpiod_get_optional(&pdev->dev,
fdb7e884ad617f Linus Walleij    2019-06-01  439  							 "sda",
fdb7e884ad617f Linus Walleij    2019-06-01  440  							 GPIOD_ASIS);
fdb7e884ad617f Linus Walleij    2019-06-01  441  	if (IS_ERR(adapter_data->gpio_sda))
fdb7e884ad617f Linus Walleij    2019-06-01  442  		return PTR_ERR(adapter_data->gpio_sda);
                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

fdb7e884ad617f Linus Walleij    2019-06-01  443  
^1da177e4c3f41 Linus Torvalds   2005-04-16  444  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
^1da177e4c3f41 Linus Torvalds   2005-04-16  445  	if (!res) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  446  		ret = -ENODEV;
^1da177e4c3f41 Linus Torvalds   2005-04-16  447  		goto free_both;
^1da177e4c3f41 Linus Torvalds   2005-04-16  448  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  449  
^1da177e4c3f41 Linus Torvalds   2005-04-16  450  	if (!request_mem_region(res->start, IOP3XX_I2C_IO_SIZE, pdev->name)) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  451  		ret = -EBUSY;
^1da177e4c3f41 Linus Torvalds   2005-04-16  452  		goto free_both;
^1da177e4c3f41 Linus Torvalds   2005-04-16  453  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  454  
^1da177e4c3f41 Linus Torvalds   2005-04-16  455  	/* set the adapter enumeration # */
^1da177e4c3f41 Linus Torvalds   2005-04-16  456  	adapter_data->id = i2c_id++;
^1da177e4c3f41 Linus Torvalds   2005-04-16  457  
747fcc91cb5bad Aaro Koskinen    2010-11-29  458  	adapter_data->ioaddr = ioremap(res->start, IOP3XX_I2C_IO_SIZE);
^1da177e4c3f41 Linus Torvalds   2005-04-16  459  	if (!adapter_data->ioaddr) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  460  		ret = -ENOMEM;
^1da177e4c3f41 Linus Torvalds   2005-04-16  461  		goto release_region;
^1da177e4c3f41 Linus Torvalds   2005-04-16  462  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  463  
489447380a2921 David Vrabel     2006-01-19  464  	irq = platform_get_irq(pdev, 0);
489447380a2921 David Vrabel     2006-01-19  465  	if (irq < 0) {
489447380a2921 David Vrabel     2006-01-19  466  		ret = -ENXIO;
489447380a2921 David Vrabel     2006-01-19  467  		goto unmap;
489447380a2921 David Vrabel     2006-01-19  468  	}
489447380a2921 David Vrabel     2006-01-19  469  	ret = request_irq(irq, iop3xx_i2c_irq_handler, 0,
^1da177e4c3f41 Linus Torvalds   2005-04-16  470  				pdev->name, adapter_data);
fbd9a6d7a927b2 Dan Williams     2005-11-01  471  
fbd9a6d7a927b2 Dan Williams     2005-11-01  472  	if (ret) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  473  		ret = -EIO;
^1da177e4c3f41 Linus Torvalds   2005-04-16  474  		goto unmap;
^1da177e4c3f41 Linus Torvalds   2005-04-16  475  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  476  
^1da177e4c3f41 Linus Torvalds   2005-04-16  477  	memcpy(new_adapter->name, pdev->name, strlen(pdev->name));
^1da177e4c3f41 Linus Torvalds   2005-04-16  478  	new_adapter->owner = THIS_MODULE;
3401b2fff38fbb Jean Delvare     2008-07-14  479  	new_adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
^1da177e4c3f41 Linus Torvalds   2005-04-16  480  	new_adapter->dev.parent = &pdev->dev;
cac28ac2a87c38 Linus Walleij    2019-01-28  481  	new_adapter->dev.of_node = pdev->dev.of_node;
757ba4c697244d Martin Michlmayr 2007-07-12  482  	new_adapter->nr = pdev->id;
^1da177e4c3f41 Linus Torvalds   2005-04-16  483  
^1da177e4c3f41 Linus Torvalds   2005-04-16  484  	/*
^1da177e4c3f41 Linus Torvalds   2005-04-16  485  	 * Default values...should these come in from board code?
^1da177e4c3f41 Linus Torvalds   2005-04-16  486  	 */
8a52c6b4d55b29 Jean Delvare     2009-03-28  487  	new_adapter->timeout = HZ;
^1da177e4c3f41 Linus Torvalds   2005-04-16  488  	new_adapter->algo = &iop3xx_i2c_algo;
^1da177e4c3f41 Linus Torvalds   2005-04-16  489  
^1da177e4c3f41 Linus Torvalds   2005-04-16  490  	init_waitqueue_head(&adapter_data->waitq);
^1da177e4c3f41 Linus Torvalds   2005-04-16  491  	spin_lock_init(&adapter_data->lock);
^1da177e4c3f41 Linus Torvalds   2005-04-16  492  
^1da177e4c3f41 Linus Torvalds   2005-04-16  493  	iop3xx_i2c_reset(adapter_data);
^1da177e4c3f41 Linus Torvalds   2005-04-16  494  	iop3xx_i2c_enable(adapter_data);
^1da177e4c3f41 Linus Torvalds   2005-04-16  495  
3ae5eaec1d2d9c Russell King     2005-11-09  496  	platform_set_drvdata(pdev, new_adapter);
^1da177e4c3f41 Linus Torvalds   2005-04-16  497  	new_adapter->algo_data = adapter_data;
^1da177e4c3f41 Linus Torvalds   2005-04-16  498  
757ba4c697244d Martin Michlmayr 2007-07-12  499  	i2c_add_numbered_adapter(new_adapter);
^1da177e4c3f41 Linus Torvalds   2005-04-16  500  
^1da177e4c3f41 Linus Torvalds   2005-04-16  501  	return 0;
^1da177e4c3f41 Linus Torvalds   2005-04-16  502  
^1da177e4c3f41 Linus Torvalds   2005-04-16  503  unmap:
747fcc91cb5bad Aaro Koskinen    2010-11-29  504  	iounmap(adapter_data->ioaddr);
^1da177e4c3f41 Linus Torvalds   2005-04-16  505  
^1da177e4c3f41 Linus Torvalds   2005-04-16  506  release_region:
^1da177e4c3f41 Linus Torvalds   2005-04-16  507  	release_mem_region(res->start, IOP3XX_I2C_IO_SIZE);
^1da177e4c3f41 Linus Torvalds   2005-04-16  508  
^1da177e4c3f41 Linus Torvalds   2005-04-16  509  free_both:
^1da177e4c3f41 Linus Torvalds   2005-04-16  510  	kfree(adapter_data);
^1da177e4c3f41 Linus Torvalds   2005-04-16  511  
^1da177e4c3f41 Linus Torvalds   2005-04-16  512  free_adapter:
^1da177e4c3f41 Linus Torvalds   2005-04-16  513  	kfree(new_adapter);
^1da177e4c3f41 Linus Torvalds   2005-04-16  514  
^1da177e4c3f41 Linus Torvalds   2005-04-16  515  out:
^1da177e4c3f41 Linus Torvalds   2005-04-16  516  	return ret;
^1da177e4c3f41 Linus Torvalds   2005-04-16  517  }

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-10 11:40   ` Dan Carpenter
  0 siblings, 0 replies; 26+ messages in thread
From: Dan Carpenter @ 2020-01-10 11:40 UTC (permalink / raw)
  To: kbuild-all

[-- Attachment #1: Type: text/plain, Size: 8873 bytes --]

Hi Krzysztof,

url:    https://github.com/0day-ci/linux/commits/Krzysztof-Kozlowski/i2c-Enable-compile-testing-for-some-of-drivers/20200107-164808
base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next

If you fix the issue, kindly add following tag
Reported-by: kbuild test robot <lkp@intel.com>
Reported-by: Dan Carpenter <dan.carpenter@oracle.com>

New smatch warnings:
drivers/i2c/busses/i2c-iop3xx.c:437 iop3xx_i2c_probe() warn: possible memory leak of 'new_adapter'

Old smatch warnings:
drivers/i2c/busses/i2c-iop3xx.c:442 iop3xx_i2c_probe() warn: possible memory leak of 'new_adapter'

# https://github.com/0day-ci/linux/commit/16f23a6a6c2387ec6252ffba16d110ace21c85cf
git remote add linux-review https://github.com/0day-ci/linux
git remote update linux-review
git checkout 16f23a6a6c2387ec6252ffba16d110ace21c85cf
vim +/new_adapter +437 drivers/i2c/busses/i2c-iop3xx.c

^1da177e4c3f41 Linus Torvalds   2005-04-16  413  static int
3ae5eaec1d2d9c Russell King     2005-11-09  414  iop3xx_i2c_probe(struct platform_device *pdev)
^1da177e4c3f41 Linus Torvalds   2005-04-16  415  {
^1da177e4c3f41 Linus Torvalds   2005-04-16  416  	struct resource *res;
489447380a2921 David Vrabel     2006-01-19  417  	int ret, irq;
^1da177e4c3f41 Linus Torvalds   2005-04-16  418  	struct i2c_adapter *new_adapter;
^1da177e4c3f41 Linus Torvalds   2005-04-16  419  	struct i2c_algo_iop3xx_data *adapter_data;
^1da177e4c3f41 Linus Torvalds   2005-04-16  420  
5263ebb51eb098 Deepak Saxena    2005-10-17  421  	new_adapter = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
^1da177e4c3f41 Linus Torvalds   2005-04-16  422  	if (!new_adapter) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  423  		ret = -ENOMEM;
^1da177e4c3f41 Linus Torvalds   2005-04-16  424  		goto out;
^1da177e4c3f41 Linus Torvalds   2005-04-16  425  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  426  
5263ebb51eb098 Deepak Saxena    2005-10-17  427  	adapter_data = kzalloc(sizeof(struct i2c_algo_iop3xx_data), GFP_KERNEL);
^1da177e4c3f41 Linus Torvalds   2005-04-16  428  	if (!adapter_data) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  429  		ret = -ENOMEM;
^1da177e4c3f41 Linus Torvalds   2005-04-16  430  		goto free_adapter;
^1da177e4c3f41 Linus Torvalds   2005-04-16  431  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  432  
fdb7e884ad617f Linus Walleij    2019-06-01  433  	adapter_data->gpio_scl = devm_gpiod_get_optional(&pdev->dev,
fdb7e884ad617f Linus Walleij    2019-06-01  434  							 "scl",
fdb7e884ad617f Linus Walleij    2019-06-01  435  							 GPIOD_ASIS);
fdb7e884ad617f Linus Walleij    2019-06-01  436  	if (IS_ERR(adapter_data->gpio_scl))
fdb7e884ad617f Linus Walleij    2019-06-01 @437  		return PTR_ERR(adapter_data->gpio_scl);
                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
leak

fdb7e884ad617f Linus Walleij    2019-06-01  438  	adapter_data->gpio_sda = devm_gpiod_get_optional(&pdev->dev,
fdb7e884ad617f Linus Walleij    2019-06-01  439  							 "sda",
fdb7e884ad617f Linus Walleij    2019-06-01  440  							 GPIOD_ASIS);
fdb7e884ad617f Linus Walleij    2019-06-01  441  	if (IS_ERR(adapter_data->gpio_sda))
fdb7e884ad617f Linus Walleij    2019-06-01  442  		return PTR_ERR(adapter_data->gpio_sda);
                                                                ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^

fdb7e884ad617f Linus Walleij    2019-06-01  443  
^1da177e4c3f41 Linus Torvalds   2005-04-16  444  	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
^1da177e4c3f41 Linus Torvalds   2005-04-16  445  	if (!res) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  446  		ret = -ENODEV;
^1da177e4c3f41 Linus Torvalds   2005-04-16  447  		goto free_both;
^1da177e4c3f41 Linus Torvalds   2005-04-16  448  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  449  
^1da177e4c3f41 Linus Torvalds   2005-04-16  450  	if (!request_mem_region(res->start, IOP3XX_I2C_IO_SIZE, pdev->name)) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  451  		ret = -EBUSY;
^1da177e4c3f41 Linus Torvalds   2005-04-16  452  		goto free_both;
^1da177e4c3f41 Linus Torvalds   2005-04-16  453  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  454  
^1da177e4c3f41 Linus Torvalds   2005-04-16  455  	/* set the adapter enumeration # */
^1da177e4c3f41 Linus Torvalds   2005-04-16  456  	adapter_data->id = i2c_id++;
^1da177e4c3f41 Linus Torvalds   2005-04-16  457  
747fcc91cb5bad Aaro Koskinen    2010-11-29  458  	adapter_data->ioaddr = ioremap(res->start, IOP3XX_I2C_IO_SIZE);
^1da177e4c3f41 Linus Torvalds   2005-04-16  459  	if (!adapter_data->ioaddr) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  460  		ret = -ENOMEM;
^1da177e4c3f41 Linus Torvalds   2005-04-16  461  		goto release_region;
^1da177e4c3f41 Linus Torvalds   2005-04-16  462  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  463  
489447380a2921 David Vrabel     2006-01-19  464  	irq = platform_get_irq(pdev, 0);
489447380a2921 David Vrabel     2006-01-19  465  	if (irq < 0) {
489447380a2921 David Vrabel     2006-01-19  466  		ret = -ENXIO;
489447380a2921 David Vrabel     2006-01-19  467  		goto unmap;
489447380a2921 David Vrabel     2006-01-19  468  	}
489447380a2921 David Vrabel     2006-01-19  469  	ret = request_irq(irq, iop3xx_i2c_irq_handler, 0,
^1da177e4c3f41 Linus Torvalds   2005-04-16  470  				pdev->name, adapter_data);
fbd9a6d7a927b2 Dan Williams     2005-11-01  471  
fbd9a6d7a927b2 Dan Williams     2005-11-01  472  	if (ret) {
^1da177e4c3f41 Linus Torvalds   2005-04-16  473  		ret = -EIO;
^1da177e4c3f41 Linus Torvalds   2005-04-16  474  		goto unmap;
^1da177e4c3f41 Linus Torvalds   2005-04-16  475  	}
^1da177e4c3f41 Linus Torvalds   2005-04-16  476  
^1da177e4c3f41 Linus Torvalds   2005-04-16  477  	memcpy(new_adapter->name, pdev->name, strlen(pdev->name));
^1da177e4c3f41 Linus Torvalds   2005-04-16  478  	new_adapter->owner = THIS_MODULE;
3401b2fff38fbb Jean Delvare     2008-07-14  479  	new_adapter->class = I2C_CLASS_HWMON | I2C_CLASS_SPD;
^1da177e4c3f41 Linus Torvalds   2005-04-16  480  	new_adapter->dev.parent = &pdev->dev;
cac28ac2a87c38 Linus Walleij    2019-01-28  481  	new_adapter->dev.of_node = pdev->dev.of_node;
757ba4c697244d Martin Michlmayr 2007-07-12  482  	new_adapter->nr = pdev->id;
^1da177e4c3f41 Linus Torvalds   2005-04-16  483  
^1da177e4c3f41 Linus Torvalds   2005-04-16  484  	/*
^1da177e4c3f41 Linus Torvalds   2005-04-16  485  	 * Default values...should these come in from board code?
^1da177e4c3f41 Linus Torvalds   2005-04-16  486  	 */
8a52c6b4d55b29 Jean Delvare     2009-03-28  487  	new_adapter->timeout = HZ;
^1da177e4c3f41 Linus Torvalds   2005-04-16  488  	new_adapter->algo = &iop3xx_i2c_algo;
^1da177e4c3f41 Linus Torvalds   2005-04-16  489  
^1da177e4c3f41 Linus Torvalds   2005-04-16  490  	init_waitqueue_head(&adapter_data->waitq);
^1da177e4c3f41 Linus Torvalds   2005-04-16  491  	spin_lock_init(&adapter_data->lock);
^1da177e4c3f41 Linus Torvalds   2005-04-16  492  
^1da177e4c3f41 Linus Torvalds   2005-04-16  493  	iop3xx_i2c_reset(adapter_data);
^1da177e4c3f41 Linus Torvalds   2005-04-16  494  	iop3xx_i2c_enable(adapter_data);
^1da177e4c3f41 Linus Torvalds   2005-04-16  495  
3ae5eaec1d2d9c Russell King     2005-11-09  496  	platform_set_drvdata(pdev, new_adapter);
^1da177e4c3f41 Linus Torvalds   2005-04-16  497  	new_adapter->algo_data = adapter_data;
^1da177e4c3f41 Linus Torvalds   2005-04-16  498  
757ba4c697244d Martin Michlmayr 2007-07-12  499  	i2c_add_numbered_adapter(new_adapter);
^1da177e4c3f41 Linus Torvalds   2005-04-16  500  
^1da177e4c3f41 Linus Torvalds   2005-04-16  501  	return 0;
^1da177e4c3f41 Linus Torvalds   2005-04-16  502  
^1da177e4c3f41 Linus Torvalds   2005-04-16  503  unmap:
747fcc91cb5bad Aaro Koskinen    2010-11-29  504  	iounmap(adapter_data->ioaddr);
^1da177e4c3f41 Linus Torvalds   2005-04-16  505  
^1da177e4c3f41 Linus Torvalds   2005-04-16  506  release_region:
^1da177e4c3f41 Linus Torvalds   2005-04-16  507  	release_mem_region(res->start, IOP3XX_I2C_IO_SIZE);
^1da177e4c3f41 Linus Torvalds   2005-04-16  508  
^1da177e4c3f41 Linus Torvalds   2005-04-16  509  free_both:
^1da177e4c3f41 Linus Torvalds   2005-04-16  510  	kfree(adapter_data);
^1da177e4c3f41 Linus Torvalds   2005-04-16  511  
^1da177e4c3f41 Linus Torvalds   2005-04-16  512  free_adapter:
^1da177e4c3f41 Linus Torvalds   2005-04-16  513  	kfree(new_adapter);
^1da177e4c3f41 Linus Torvalds   2005-04-16  514  
^1da177e4c3f41 Linus Torvalds   2005-04-16  515  out:
^1da177e4c3f41 Linus Torvalds   2005-04-16  516  	return ret;
^1da177e4c3f41 Linus Torvalds   2005-04-16  517  }

---
0-DAY kernel test infrastructure                 Open Source Technology Center
https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-08 17:21 ` [PATCH v2 1/2] i2c: Enable compile testing for some of drivers kbuild test robot
@ 2020-01-13 10:46   ` Krzysztof Kozlowski
  0 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-13 10:46 UTC (permalink / raw)
  To: kbuild-all

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On Thu, Jan 09, 2020 at 01:21:28AM +0800, kbuild test robot wrote:
> Hi Krzysztof,
> 
> I love your patch! Perhaps something to improve:
> 
> [auto build test WARNING on wsa/i2c/for-next]
> [also build test WARNING on v5.5-rc5 next-20200106]
> [if your patch is applied to the wrong git tree, please drop us a note to help
> improve the system. BTW, we also suggest to use '--base' option to specify the
> base tree in git format-patch, please see https://stackoverflow.com/a/37406982]
> 
> url:    https://github.com/0day-ci/linux/commits/Krzysztof-Kozlowski/i2c-Enable-compile-testing-for-some-of-drivers/20200107-164808
> base:   https://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux.git i2c/for-next
> reproduce:
>         # apt-get install sparse
>         # sparse version: v0.6.1-129-g341daf20-dirty
>         make ARCH=x86_64 allmodconfig
>         make C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__'
> 
> If you fix the issue, kindly add following tag
> Reported-by: kbuild test robot <lkp@intel.com>
> 
> 
> sparse warnings: (new ones prefixed by >>)
> 
> >> drivers/i2c/busses/i2c-stu300.c:446:17: sparse: sparse: cast removes address space '<asn:2>' of expression

I fixed this already here:
https://lore.kernel.org/lkml/20191230172751.17985-4-krzk(a)kernel.org/

Best regards,
Krzysztof


> 
> vim +446 drivers/i2c/busses/i2c-stu300.c
> 
> 18904c0ecdf2cf Linus Walleij 2009-06-13  421  
> 18904c0ecdf2cf Linus Walleij 2009-06-13  422  /*
> 18904c0ecdf2cf Linus Walleij 2009-06-13  423   * Waits for the busy bit to go low by repeated polling.
> 18904c0ecdf2cf Linus Walleij 2009-06-13  424   */
> 18904c0ecdf2cf Linus Walleij 2009-06-13  425  #define BUSY_RELEASE_ATTEMPTS 10
> 18904c0ecdf2cf Linus Walleij 2009-06-13  426  static int stu300_wait_while_busy(struct stu300_dev *dev)
> 18904c0ecdf2cf Linus Walleij 2009-06-13  427  {
> 18904c0ecdf2cf Linus Walleij 2009-06-13  428  	unsigned long timeout;
> 18904c0ecdf2cf Linus Walleij 2009-06-13  429  	int i;
> 18904c0ecdf2cf Linus Walleij 2009-06-13  430  
> 18904c0ecdf2cf Linus Walleij 2009-06-13  431  	for (i = 0; i < BUSY_RELEASE_ATTEMPTS; i++) {
> 18904c0ecdf2cf Linus Walleij 2009-06-13  432  		timeout = jiffies + STU300_TIMEOUT;
> 18904c0ecdf2cf Linus Walleij 2009-06-13  433  
> 18904c0ecdf2cf Linus Walleij 2009-06-13  434  		while (!time_after(jiffies, timeout)) {
> 18904c0ecdf2cf Linus Walleij 2009-06-13  435  			/* Is not busy? */
> 18904c0ecdf2cf Linus Walleij 2009-06-13  436  			if ((stu300_r8(dev->virtbase + I2C_SR1) &
> 18904c0ecdf2cf Linus Walleij 2009-06-13  437  			     I2C_SR1_BUSY_IND) == 0)
> 18904c0ecdf2cf Linus Walleij 2009-06-13  438  				return 0;
> 18904c0ecdf2cf Linus Walleij 2009-06-13  439  			msleep(1);
> 18904c0ecdf2cf Linus Walleij 2009-06-13  440  		}
> 18904c0ecdf2cf Linus Walleij 2009-06-13  441  
> 18904c0ecdf2cf Linus Walleij 2009-06-13  442  		dev_err(&dev->pdev->dev, "transaction timed out "
> 18904c0ecdf2cf Linus Walleij 2009-06-13  443  			"waiting for device to be free (not busy). "
> 18904c0ecdf2cf Linus Walleij 2009-06-13  444  		       "Attempt: %d\n", i+1);
> 18904c0ecdf2cf Linus Walleij 2009-06-13  445  
> 18904c0ecdf2cf Linus Walleij 2009-06-13 @446  		dev_err(&dev->pdev->dev, "base address = "
> 18904c0ecdf2cf Linus Walleij 2009-06-13  447  			"0x%08x, reinit hardware\n", (u32) dev->virtbase);
> 18904c0ecdf2cf Linus Walleij 2009-06-13  448  
> 18904c0ecdf2cf Linus Walleij 2009-06-13  449  		(void) stu300_init_hw(dev);
> 18904c0ecdf2cf Linus Walleij 2009-06-13  450  	}
> 18904c0ecdf2cf Linus Walleij 2009-06-13  451  
> 18904c0ecdf2cf Linus Walleij 2009-06-13  452  	dev_err(&dev->pdev->dev, "giving up after %d attempts "
> 18904c0ecdf2cf Linus Walleij 2009-06-13  453  		"to reset the bus.\n",  BUSY_RELEASE_ATTEMPTS);
> 18904c0ecdf2cf Linus Walleij 2009-06-13  454  
> 18904c0ecdf2cf Linus Walleij 2009-06-13  455  	return -ETIMEDOUT;
> 18904c0ecdf2cf Linus Walleij 2009-06-13  456  }
> 18904c0ecdf2cf Linus Walleij 2009-06-13  457  
> 
> :::::: The code at line 446 was first introduced by commit
> :::::: 18904c0ecdf2cf22347da2adc4b273e9570333d8 i2c: ST DDC I2C U300 bus driver v3
> 
> :::::: TO: Linus Walleij <linus.walleij@stericsson.com>
> :::::: CC: Ben Dooks <ben-linux@fluff.org>
> 
> ---
> 0-DAY kernel test infrastructure                 Open Source Technology Center
> https://lists.01.org/hyperkitty/list/kbuild-all(a)lists.01.org Intel Corporation

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-07  8:12 ` Krzysztof Kozlowski
@ 2020-01-23  9:12   ` Wolfram Sang
  -1 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23  9:12 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Jean Delvare, Jarkko Nikula, linux-i2c, linux-kernel,
	Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

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>  config I2C_ZX2967
>  	tristate "ZTE ZX2967 I2C support"
> -	depends on ARCH_ZX
> -	default y
> +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives

The list of archs neither looks pretty nor very maintainable. My
suggestion is that we leave this out of COMPILE_TEST until we have
something like ARCH_HAS_READS or something. What do you think?

> +	default y if ARCH_ZX



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^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-23  9:12   ` Wolfram Sang
  0 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23  9:12 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Linux ARM, Stephen Rothwell, Greg KH, linux-kernel,
	Kishon Vijay Abraham I, Linux Next Mailing List, Jarkko Nikula,
	linux-i2c, Geert Uytterhoeven, Jean Delvare


[-- Attachment #1.1: Type: text/plain, Size: 497 bytes --]


>  config I2C_ZX2967
>  	tristate "ZTE ZX2967 I2C support"
> -	depends on ARCH_ZX
> -	default y
> +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives

The list of archs neither looks pretty nor very maintainable. My
suggestion is that we leave this out of COMPILE_TEST until we have
something like ARCH_HAS_READS or something. What do you think?

> +	default y if ARCH_ZX



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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 2/2] i2c: exynos: Update Kconfig documentation
  2020-01-07  8:12   ` Krzysztof Kozlowski
@ 2020-01-23  9:13     ` Wolfram Sang
  -1 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23  9:13 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Jean Delvare, Jarkko Nikula, linux-i2c, linux-kernel,
	Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

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On Tue, Jan 07, 2020 at 09:12:59AM +0100, Krzysztof Kozlowski wrote:
> Update the help text to reflect current support devices:
> 1. The Exynos high speed I2C driver supports Exynos5 (ARMv7), Exynos5433
>    and Exynos7 (both ARMv8) SoCs,
> 2. The S3C I2C driver supports S3C, S5Pv210 and Exynos{3,4,5} SoCs.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Looks good. Let's discuss this one question of patch 1 and we are good
to go!


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^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 2/2] i2c: exynos: Update Kconfig documentation
@ 2020-01-23  9:13     ` Wolfram Sang
  0 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23  9:13 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Linux ARM, Stephen Rothwell, Greg KH, linux-kernel,
	Kishon Vijay Abraham I, Linux Next Mailing List, Jarkko Nikula,
	linux-i2c, Geert Uytterhoeven, Jean Delvare


[-- Attachment #1.1: Type: text/plain, Size: 458 bytes --]

On Tue, Jan 07, 2020 at 09:12:59AM +0100, Krzysztof Kozlowski wrote:
> Update the help text to reflect current support devices:
> 1. The Exynos high speed I2C driver supports Exynos5 (ARMv7), Exynos5433
>    and Exynos7 (both ARMv8) SoCs,
> 2. The S3C I2C driver supports S3C, S5Pv210 and Exynos{3,4,5} SoCs.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>

Looks good. Let's discuss this one question of patch 1 and we are good
to go!


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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-23  9:12   ` Wolfram Sang
@ 2020-01-23  9:31     ` Krzysztof Kozlowski
  -1 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-23  9:31 UTC (permalink / raw)
  To: Wolfram Sang
  Cc: Jean Delvare, Jarkko Nikula, linux-i2c, linux-kernel,
	Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> 
> >  config I2C_ZX2967
> >  	tristate "ZTE ZX2967 I2C support"
> > -	depends on ARCH_ZX
> > -	default y
> > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
> 
> The list of archs neither looks pretty nor very maintainable. My
> suggestion is that we leave this out of COMPILE_TEST until we have
> something like ARCH_HAS_READS or something. What do you think?

Indeed it does not look good. However having compile testing allows
kbuild to run sparse and smatch which already started pointing minor
issues in existing drivers.

Yeah... pros and cons... I don't have a strong opinion to keep it. Since
patch is important, maybe let's just skip this part?

Best regards,
Krzysztof

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-23  9:31     ` Krzysztof Kozlowski
  0 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-23  9:31 UTC (permalink / raw)
  To: Wolfram Sang
  Cc: Linux ARM, Stephen Rothwell, Greg KH, linux-kernel,
	Kishon Vijay Abraham I, Linux Next Mailing List, Jarkko Nikula,
	linux-i2c, Geert Uytterhoeven, Jean Delvare

On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> 
> >  config I2C_ZX2967
> >  	tristate "ZTE ZX2967 I2C support"
> > -	depends on ARCH_ZX
> > -	default y
> > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
> 
> The list of archs neither looks pretty nor very maintainable. My
> suggestion is that we leave this out of COMPILE_TEST until we have
> something like ARCH_HAS_READS or something. What do you think?

Indeed it does not look good. However having compile testing allows
kbuild to run sparse and smatch which already started pointing minor
issues in existing drivers.

Yeah... pros and cons... I don't have a strong opinion to keep it. Since
patch is important, maybe let's just skip this part?

Best regards,
Krzysztof

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-23  9:31     ` Krzysztof Kozlowski
@ 2020-01-23  9:41       ` Wolfram Sang
  -1 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23  9:41 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Jean Delvare, Jarkko Nikula, linux-i2c, linux-kernel,
	Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

[-- Attachment #1: Type: text/plain, Size: 1193 bytes --]

On Thu, Jan 23, 2020 at 10:31:20AM +0100, Krzysztof Kozlowski wrote:
> On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> > 
> > >  config I2C_ZX2967
> > >  	tristate "ZTE ZX2967 I2C support"
> > > -	depends on ARCH_ZX
> > > -	default y
> > > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> > > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
> > 
> > The list of archs neither looks pretty nor very maintainable. My
> > suggestion is that we leave this out of COMPILE_TEST until we have
> > something like ARCH_HAS_READS or something. What do you think?
> 
> Indeed it does not look good. However having compile testing allows
> kbuild to run sparse and smatch which already started pointing minor
> issues in existing drivers.
> 
> Yeah... pros and cons... I don't have a strong opinion to keep it. Since
> patch is important, maybe let's just skip this part?

Yeah, let's skip it for now. If you or someone is keen on having it,
something like ARCH_HAS_READS (<- needs better name) should be
introduced so we can use it here. But that can/should be handled
incrementally.


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^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-23  9:41       ` Wolfram Sang
  0 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23  9:41 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Linux ARM, Stephen Rothwell, Greg KH, linux-kernel,
	Kishon Vijay Abraham I, Linux Next Mailing List, Jarkko Nikula,
	linux-i2c, Geert Uytterhoeven, Jean Delvare


[-- Attachment #1.1: Type: text/plain, Size: 1193 bytes --]

On Thu, Jan 23, 2020 at 10:31:20AM +0100, Krzysztof Kozlowski wrote:
> On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> > 
> > >  config I2C_ZX2967
> > >  	tristate "ZTE ZX2967 I2C support"
> > > -	depends on ARCH_ZX
> > > -	default y
> > > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> > > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
> > 
> > The list of archs neither looks pretty nor very maintainable. My
> > suggestion is that we leave this out of COMPILE_TEST until we have
> > something like ARCH_HAS_READS or something. What do you think?
> 
> Indeed it does not look good. However having compile testing allows
> kbuild to run sparse and smatch which already started pointing minor
> issues in existing drivers.
> 
> Yeah... pros and cons... I don't have a strong opinion to keep it. Since
> patch is important, maybe let's just skip this part?

Yeah, let's skip it for now. If you or someone is keen on having it,
something like ARCH_HAS_READS (<- needs better name) should be
introduced so we can use it here. But that can/should be handled
incrementally.


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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-23  9:41       ` Wolfram Sang
@ 2020-01-23 10:00         ` Krzysztof Kozlowski
  -1 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-23 10:00 UTC (permalink / raw)
  To: Wolfram Sang
  Cc: Jean Delvare, Jarkko Nikula, linux-i2c, linux-kernel,
	Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

On Thu, Jan 23, 2020 at 10:41:07AM +0100, Wolfram Sang wrote:
> On Thu, Jan 23, 2020 at 10:31:20AM +0100, Krzysztof Kozlowski wrote:
> > On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> > > 
> > > >  config I2C_ZX2967
> > > >  	tristate "ZTE ZX2967 I2C support"
> > > > -	depends on ARCH_ZX
> > > > -	default y
> > > > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> > > > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
> > > 
> > > The list of archs neither looks pretty nor very maintainable. My
> > > suggestion is that we leave this out of COMPILE_TEST until we have
> > > something like ARCH_HAS_READS or something. What do you think?
> > 
> > Indeed it does not look good. However having compile testing allows
> > kbuild to run sparse and smatch which already started pointing minor
> > issues in existing drivers.
> > 
> > Yeah... pros and cons... I don't have a strong opinion to keep it. Since
> > patch is important, maybe let's just skip this part?
> 
> Yeah, let's skip it for now. If you or someone is keen on having it,
> something like ARCH_HAS_READS (<- needs better name) should be
> introduced so we can use it here. But that can/should be handled
> incrementally.

Shall I send v3 or mayybe can you apply without this hunk?

Best regards,
Krzysztof



^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-23 10:00         ` Krzysztof Kozlowski
  0 siblings, 0 replies; 26+ messages in thread
From: Krzysztof Kozlowski @ 2020-01-23 10:00 UTC (permalink / raw)
  To: Wolfram Sang
  Cc: Linux ARM, Stephen Rothwell, Greg KH, linux-kernel,
	Kishon Vijay Abraham I, Linux Next Mailing List, Jarkko Nikula,
	linux-i2c, Geert Uytterhoeven, Jean Delvare

On Thu, Jan 23, 2020 at 10:41:07AM +0100, Wolfram Sang wrote:
> On Thu, Jan 23, 2020 at 10:31:20AM +0100, Krzysztof Kozlowski wrote:
> > On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> > > 
> > > >  config I2C_ZX2967
> > > >  	tristate "ZTE ZX2967 I2C support"
> > > > -	depends on ARCH_ZX
> > > > -	default y
> > > > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> > > > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
> > > 
> > > The list of archs neither looks pretty nor very maintainable. My
> > > suggestion is that we leave this out of COMPILE_TEST until we have
> > > something like ARCH_HAS_READS or something. What do you think?
> > 
> > Indeed it does not look good. However having compile testing allows
> > kbuild to run sparse and smatch which already started pointing minor
> > issues in existing drivers.
> > 
> > Yeah... pros and cons... I don't have a strong opinion to keep it. Since
> > patch is important, maybe let's just skip this part?
> 
> Yeah, let's skip it for now. If you or someone is keen on having it,
> something like ARCH_HAS_READS (<- needs better name) should be
> introduced so we can use it here. But that can/should be handled
> incrementally.

Shall I send v3 or mayybe can you apply without this hunk?

Best regards,
Krzysztof



_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-07  8:12 ` Krzysztof Kozlowski
@ 2020-01-23 10:59   ` Wolfram Sang
  -1 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23 10:59 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Jean Delvare, Jarkko Nikula, linux-i2c, linux-kernel,
	Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

[-- Attachment #1: Type: text/plain, Size: 627 bytes --]

On Tue, Jan 07, 2020 at 09:12:58AM +0100, Krzysztof Kozlowski wrote:
> Some of the I2C bus drivers can be compile tested to increase build
> coverage.  This requires also:
> 1. Adding dependencies on COMMON_CLK for BCM2835 and Meson I2C
>    controllers,
> 2. Adding 'if' conditional to 'default y' so they will not get enabled
>    by default on all other architectures,
> 3. Limiting few compile test options to supported architectures (which
>    provide the readsX()/writesX() primitives).
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> 

Applied to for-next with the zx chunk removed, thanks!


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^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-23 10:59   ` Wolfram Sang
  0 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23 10:59 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Linux ARM, Stephen Rothwell, Greg KH, linux-kernel,
	Kishon Vijay Abraham I, Linux Next Mailing List, Jarkko Nikula,
	linux-i2c, Geert Uytterhoeven, Jean Delvare


[-- Attachment #1.1: Type: text/plain, Size: 627 bytes --]

On Tue, Jan 07, 2020 at 09:12:58AM +0100, Krzysztof Kozlowski wrote:
> Some of the I2C bus drivers can be compile tested to increase build
> coverage.  This requires also:
> 1. Adding dependencies on COMMON_CLK for BCM2835 and Meson I2C
>    controllers,
> 2. Adding 'if' conditional to 'default y' so they will not get enabled
>    by default on all other architectures,
> 3. Limiting few compile test options to supported architectures (which
>    provide the readsX()/writesX() primitives).
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> 

Applied to for-next with the zx chunk removed, thanks!


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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 2/2] i2c: exynos: Update Kconfig documentation
  2020-01-07  8:12   ` Krzysztof Kozlowski
@ 2020-01-23 10:59     ` Wolfram Sang
  -1 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23 10:59 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Jean Delvare, Jarkko Nikula, linux-i2c, linux-kernel,
	Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

[-- Attachment #1: Type: text/plain, Size: 412 bytes --]

On Tue, Jan 07, 2020 at 09:12:59AM +0100, Krzysztof Kozlowski wrote:
> Update the help text to reflect current support devices:
> 1. The Exynos high speed I2C driver supports Exynos5 (ARMv7), Exynos5433
>    and Exynos7 (both ARMv8) SoCs,
> 2. The S3C I2C driver supports S3C, S5Pv210 and Exynos{3,4,5} SoCs.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> 

Applied to for-next, thanks!


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^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 2/2] i2c: exynos: Update Kconfig documentation
@ 2020-01-23 10:59     ` Wolfram Sang
  0 siblings, 0 replies; 26+ messages in thread
From: Wolfram Sang @ 2020-01-23 10:59 UTC (permalink / raw)
  To: Krzysztof Kozlowski
  Cc: Linux ARM, Stephen Rothwell, Greg KH, linux-kernel,
	Kishon Vijay Abraham I, Linux Next Mailing List, Jarkko Nikula,
	linux-i2c, Geert Uytterhoeven, Jean Delvare


[-- Attachment #1.1: Type: text/plain, Size: 412 bytes --]

On Tue, Jan 07, 2020 at 09:12:59AM +0100, Krzysztof Kozlowski wrote:
> Update the help text to reflect current support devices:
> 1. The Exynos high speed I2C driver supports Exynos5 (ARMv7), Exynos5433
>    and Exynos7 (both ARMv8) SoCs,
> 2. The S3C I2C driver supports S3C, S5Pv210 and Exynos{3,4,5} SoCs.
> 
> Signed-off-by: Krzysztof Kozlowski <krzk@kernel.org>
> 

Applied to for-next, thanks!


[-- Attachment #1.2: signature.asc --]
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_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-23  9:41       ` Wolfram Sang
@ 2020-01-23 12:46         ` Uwe Kleine-König
  -1 siblings, 0 replies; 26+ messages in thread
From: Uwe Kleine-König @ 2020-01-23 12:46 UTC (permalink / raw)
  To: Wolfram Sang
  Cc: Krzysztof Kozlowski, Jean Delvare, Jarkko Nikula, linux-i2c,
	linux-kernel, Linux Next Mailing List, Kishon Vijay Abraham I,
	Greg KH, Stephen Rothwell, Geert Uytterhoeven, Linux ARM

On Thu, Jan 23, 2020 at 10:41:07AM +0100, Wolfram Sang wrote:
> On Thu, Jan 23, 2020 at 10:31:20AM +0100, Krzysztof Kozlowski wrote:
> > On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> > > 
> > > >  config I2C_ZX2967
> > > >  	tristate "ZTE ZX2967 I2C support"
> > > > -	depends on ARCH_ZX
> > > > -	default y
> > > > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> > > > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
> > > 
> > > The list of archs neither looks pretty nor very maintainable. My
> > > suggestion is that we leave this out of COMPILE_TEST until we have
> > > something like ARCH_HAS_READS or something. What do you think?
> > 
> > Indeed it does not look good. However having compile testing allows
> > kbuild to run sparse and smatch which already started pointing minor
> > issues in existing drivers.
> > 
> > Yeah... pros and cons... I don't have a strong opinion to keep it. Since
> > patch is important, maybe let's just skip this part?
> 
> Yeah, let's skip it for now. If you or someone is keen on having it,
> something like ARCH_HAS_READS (<- needs better name) should be
> introduced so we can use it here. But that can/should be handled
> incrementally.

Isn't this "HAS_IOMEM" already today? The driver compiles for me on
amd64, too, so ...

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-23 12:46         ` Uwe Kleine-König
  0 siblings, 0 replies; 26+ messages in thread
From: Uwe Kleine-König @ 2020-01-23 12:46 UTC (permalink / raw)
  To: Wolfram Sang
  Cc: Linux ARM, Stephen Rothwell, Greg KH, linux-kernel,
	Krzysztof Kozlowski, Kishon Vijay Abraham I,
	Linux Next Mailing List, Jarkko Nikula, linux-i2c,
	Geert Uytterhoeven, Jean Delvare

On Thu, Jan 23, 2020 at 10:41:07AM +0100, Wolfram Sang wrote:
> On Thu, Jan 23, 2020 at 10:31:20AM +0100, Krzysztof Kozlowski wrote:
> > On Thu, Jan 23, 2020 at 10:12:28AM +0100, Wolfram Sang wrote:
> > > 
> > > >  config I2C_ZX2967
> > > >  	tristate "ZTE ZX2967 I2C support"
> > > > -	depends on ARCH_ZX
> > > > -	default y
> > > > +	depends on ARCH_ZX || (COMPILE_TEST && (ARC || ARM || ARM64 || M68K || RISCV || SUPERH || SPARC))
> > > > +	# COMPILE_TEST needs architectures with readsX()/writesX() primitives
> > > 
> > > The list of archs neither looks pretty nor very maintainable. My
> > > suggestion is that we leave this out of COMPILE_TEST until we have
> > > something like ARCH_HAS_READS or something. What do you think?
> > 
> > Indeed it does not look good. However having compile testing allows
> > kbuild to run sparse and smatch which already started pointing minor
> > issues in existing drivers.
> > 
> > Yeah... pros and cons... I don't have a strong opinion to keep it. Since
> > patch is important, maybe let's just skip this part?
> 
> Yeah, let's skip it for now. If you or someone is keen on having it,
> something like ARCH_HAS_READS (<- needs better name) should be
> introduced so we can use it here. But that can/should be handled
> incrementally.

Isn't this "HAS_IOMEM" already today? The driver compiles for me on
amd64, too, so ...

Best regards
Uwe

-- 
Pengutronix e.K.                           | Uwe Kleine-König            |
Industrial Linux Solutions                 | https://www.pengutronix.de/ |

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
  2020-01-07  8:12 ` Krzysztof Kozlowski
@ 2020-01-23 15:31   ` Marc Gonzalez
  -1 siblings, 0 replies; 26+ messages in thread
From: Marc Gonzalez @ 2020-01-23 15:31 UTC (permalink / raw)
  To: Krzysztof Kozlowski, Wolfram Sang, Jean Delvare, Jarkko Nikula,
	I2C, LKML
  Cc: Linux Next Mailing List, Kishon Vijay Abraham I, Greg KH,
	Stephen Rothwell, Geert Uytterhoeven, Linux ARM

On 07/01/2020 09:12, Krzysztof Kozlowski wrote:

> Some of the I2C bus drivers can be compile tested to increase build
> coverage.  This requires also:
> 1. Adding dependencies on COMMON_CLK for BCM2835 and Meson I2C
>    controllers,
> 2. Adding 'if' conditional to 'default y' so they will not get enabled
>    by default on all other architectures,
> 3. Limiting few compile test options to supported architectures (which
>    provide the readsX()/writesX() primitives).
> 
>  config I2C_BCM_KONA
>  	tristate "BCM Kona I2C adapter"
> -	depends on ARCH_BCM_MOBILE
> -	default y
> +	depends on ARCH_BCM_MOBILE || COMPILE_TEST
> +	default y if ARCH_BCM_MOBILE

Why not the simpler:
default ARCH_BCM_MOBILE

Regards.

^ permalink raw reply	[flat|nested] 26+ messages in thread

* Re: [PATCH v2 1/2] i2c: Enable compile testing for some of drivers
@ 2020-01-23 15:31   ` Marc Gonzalez
  0 siblings, 0 replies; 26+ messages in thread
From: Marc Gonzalez @ 2020-01-23 15:31 UTC (permalink / raw)
  To: Krzysztof Kozlowski, Wolfram Sang, Jean Delvare, Jarkko Nikula,
	I2C, LKML
  Cc: Stephen Rothwell, Greg KH, Kishon Vijay Abraham I,
	Linux Next Mailing List, Geert Uytterhoeven, Linux ARM

On 07/01/2020 09:12, Krzysztof Kozlowski wrote:

> Some of the I2C bus drivers can be compile tested to increase build
> coverage.  This requires also:
> 1. Adding dependencies on COMMON_CLK for BCM2835 and Meson I2C
>    controllers,
> 2. Adding 'if' conditional to 'default y' so they will not get enabled
>    by default on all other architectures,
> 3. Limiting few compile test options to supported architectures (which
>    provide the readsX()/writesX() primitives).
> 
>  config I2C_BCM_KONA
>  	tristate "BCM Kona I2C adapter"
> -	depends on ARCH_BCM_MOBILE
> -	default y
> +	depends on ARCH_BCM_MOBILE || COMPILE_TEST
> +	default y if ARCH_BCM_MOBILE

Why not the simpler:
default ARCH_BCM_MOBILE

Regards.

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^ permalink raw reply	[flat|nested] 26+ messages in thread

end of thread, other threads:[~2020-01-23 15:31 UTC | newest]

Thread overview: 26+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2020-01-07  8:12 [PATCH v2 1/2] i2c: Enable compile testing for some of drivers Krzysztof Kozlowski
2020-01-07  8:12 ` Krzysztof Kozlowski
2020-01-07  8:12 ` [PATCH v2 2/2] i2c: exynos: Update Kconfig documentation Krzysztof Kozlowski
2020-01-07  8:12   ` Krzysztof Kozlowski
2020-01-23  9:13   ` Wolfram Sang
2020-01-23  9:13     ` Wolfram Sang
2020-01-23 10:59   ` Wolfram Sang
2020-01-23 10:59     ` Wolfram Sang
2020-01-08 17:21 ` [PATCH v2 1/2] i2c: Enable compile testing for some of drivers kbuild test robot
2020-01-13 10:46   ` Krzysztof Kozlowski
2020-01-10 11:40 ` Dan Carpenter
2020-01-10 11:40   ` Dan Carpenter
2020-01-23  9:12 ` Wolfram Sang
2020-01-23  9:12   ` Wolfram Sang
2020-01-23  9:31   ` Krzysztof Kozlowski
2020-01-23  9:31     ` Krzysztof Kozlowski
2020-01-23  9:41     ` Wolfram Sang
2020-01-23  9:41       ` Wolfram Sang
2020-01-23 10:00       ` Krzysztof Kozlowski
2020-01-23 10:00         ` Krzysztof Kozlowski
2020-01-23 12:46       ` Uwe Kleine-König
2020-01-23 12:46         ` Uwe Kleine-König
2020-01-23 10:59 ` Wolfram Sang
2020-01-23 10:59   ` Wolfram Sang
2020-01-23 15:31 ` Marc Gonzalez
2020-01-23 15:31   ` Marc Gonzalez

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