[PATCH v3 01/11] ACPI / LPSS: Make PCI dependency explicit

[PATCH v3 01/11] ACPI / LPSS: Make PCI dependency explicit

[Sinan Kaya]

This code depends on PCI. Compile only when PCI is present.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 drivers/acpi/Makefile   | 3 ++-
 drivers/acpi/internal.h | 4 ++++
 2 files changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/acpi/Makefile b/drivers/acpi/Makefile
index 7c6afc111d76..bb857421c2e8 100644
--- a/drivers/acpi/Makefile
+++ b/drivers/acpi/Makefile
@@ -41,7 +41,8 @@ acpi-y				+= ec.o
 acpi-$(CONFIG_ACPI_DOCK)	+= dock.o
 acpi-$(CONFIG_PCI)		+= pci_root.o pci_link.o pci_irq.o
 obj-$(CONFIG_ACPI_MCFG)		+= pci_mcfg.o
-acpi-y				+= acpi_lpss.o acpi_apd.o
+acpi-$(CONFIG_PCI)		+= acpi_lpss.o
+acpi-y				+= acpi_apd.o
 acpi-y				+= acpi_platform.o
 acpi-y				+= acpi_pnp.o
 acpi-$(CONFIG_ARM_AMBA)	+= acpi_amba.o
diff --git a/drivers/acpi/internal.h b/drivers/acpi/internal.h
index 7e6952edb5b0..6a9e1fb8913a 100644
--- a/drivers/acpi/internal.h
+++ b/drivers/acpi/internal.h
@@ -81,7 +81,11 @@ void acpi_debugfs_init(void);
 #else
 static inline void acpi_debugfs_init(void) { return; }
 #endif
+#ifdef CONFIG_PCI
 void acpi_lpss_init(void);
+#else
+static inline void acpi_lpss_init(void) {}
+#endif
 
 void acpi_apd_init(void);
 
-- 
2.19.0

[PATCH v3 02/11] ata: make PCI dependency explicit for PATA_ACPI

[Sinan Kaya]

PATA_ACPI is a PCI device driver but the PCI dependency has not been
explicitly called out.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 drivers/ata/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
index 4ca7a6b4eaae..8218db17ebdb 100644
--- a/drivers/ata/Kconfig
+++ b/drivers/ata/Kconfig
@@ -1091,7 +1091,7 @@ comment "Generic fallback / legacy drivers"
 
 config PATA_ACPI
 	tristate "ACPI firmware driver for PATA"
-	depends on ATA_ACPI && ATA_BMDMA
+	depends on ATA_ACPI && ATA_BMDMA && PCI
 	help
 	  This option enables an ACPI method driver which drives
 	  motherboard PATA controller interfaces through the ACPI
-- 
2.19.0

[PATCH v3 03/11] vga-switcheroo: make PCI dependency explicit

[Sinan Kaya]

This driver depends on the PCI infrastructure but the dependency has not
been explicitly called out.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
---
 drivers/gpu/vga/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/gpu/vga/Kconfig b/drivers/gpu/vga/Kconfig
index b677e5d524e6..d5f1d8e1c6f8 100644
--- a/drivers/gpu/vga/Kconfig
+++ b/drivers/gpu/vga/Kconfig
@@ -21,6 +21,7 @@ config VGA_SWITCHEROO
 	bool "Laptop Hybrid Graphics - GPU switching support"
 	depends on X86
 	depends on ACPI
+	depends on PCI
 	select VGA_ARB
 	help
 	  Many laptops released in 2008/9/10 have two GPUs with a multiplexer
-- 
2.19.0

[PATCH v3 04/11] platform/x86: intel_ips: make PCI dependency explicit

[Sinan Kaya]

ipss driver is a PCI device driver but this has not been mentioned
anywhere in Kconfig.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 drivers/platform/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index e3b62c2ee8d1..b36ea14b41ad 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1009,7 +1009,7 @@ config INTEL_MFLD_THERMAL
 
 config INTEL_IPS
 	tristate "Intel Intelligent Power Sharing"
-	depends on ACPI
+	depends on ACPI && PCI
 	---help---
 	  Intel Calpella platforms support dynamic power sharing between the
 	  CPU and GPU, maximizing performance in a given TDP.  This driver,
-- 
2.19.0

[PATCH v3 05/11] platform/x86: intel_pmc: Make PCI dependency explicit

[Sinan Kaya]

Code relies on PCI for execution. Specify this in the Kconfig.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 drivers/platform/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index b36ea14b41ad..7afb96cb1cd6 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1174,7 +1174,7 @@ config INTEL_SMARTCONNECT
 
 config INTEL_PMC_IPC
 	tristate "Intel PMC IPC Driver"
-	depends on ACPI
+	depends on ACPI && PCI
 	---help---
 	This driver provides support for PMC control on some Intel platforms.
 	The PMC is an ARC processor which defines IPC commands for communication
-- 
2.19.0

[PATCH v3 06/11] apple-gmux: Make PCI dependency explicit

[Sinan Kaya]

This driver depends on the PCI infrastructure but the dependency has not
been explicitly called out.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
---
 drivers/platform/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
index 7afb96cb1cd6..89f4b86244a7 100644
--- a/drivers/platform/x86/Kconfig
+++ b/drivers/platform/x86/Kconfig
@@ -1136,6 +1136,7 @@ config SAMSUNG_Q10
 config APPLE_GMUX
 	tristate "Apple Gmux Driver"
 	depends on ACPI
+	depends on PCI
 	depends on PNP
 	depends on BACKLIGHT_CLASS_DEVICE
 	depends on BACKLIGHT_APPLE=n || BACKLIGHT_APPLE
-- 
2.19.0

[PATCH v3 07/11] drivers: thermal: int3406_thermal: Make PCI dependency explicit

[Sinan Kaya]

Need CONFIG_PCI to be set in order to be able to use this driver.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 drivers/thermal/intel/int340x_thermal/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/intel/int340x_thermal/Kconfig b/drivers/thermal/intel/int340x_thermal/Kconfig
index 0582bd12a239..fba1976d5f8d 100644
--- a/drivers/thermal/intel/int340x_thermal/Kconfig
+++ b/drivers/thermal/intel/int340x_thermal/Kconfig
@@ -31,7 +31,7 @@ if INT340X_THERMAL
 
 config INT3406_THERMAL
 	tristate "ACPI INT3406 display thermal driver"
-	depends on ACPI_VIDEO
+	depends on ACPI_VIDEO && PCI
 	help
 	  The display thermal device represents the LED/LCD display panel
 	  that may or may not include touch support. The main function of
-- 
2.19.0

[PATCH v3 08/11] ASoC: Intel: atom: Make PCI dependency explicit

[Sinan Kaya]

Code does unconditional select for IOSF_MBI. IOSF_MBI driver depends on
CONFIG_PCI set but this is not specified anywhere.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 sound/soc/intel/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
index 2fd1b61e8331..b0764b2fe001 100644
--- a/sound/soc/intel/Kconfig
+++ b/sound/soc/intel/Kconfig
@@ -91,7 +91,7 @@ config SND_SST_ATOM_HIFI2_PLATFORM_PCI
 config SND_SST_ATOM_HIFI2_PLATFORM_ACPI
 	tristate "ACPI HiFi2 (Baytrail, Cherrytrail) Platforms"
 	default ACPI
-	depends on X86 && ACPI
+	depends on X86 && ACPI && PCI
 	select SND_SST_IPC_ACPI
 	select SND_SST_ATOM_HIFI2_PLATFORM
 	select SND_SOC_ACPI_INTEL_MATCH
-- 
2.19.0

[PATCH v3 09/11] mmc: add PCI dependency into IOSF_MBI

[Sinan Kaya]

Select IOSF_MBI only when PCI is set.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 drivers/mmc/host/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
index e26b8145efb3..4c5f037b246d 100644
--- a/drivers/mmc/host/Kconfig
+++ b/drivers/mmc/host/Kconfig
@@ -117,7 +117,7 @@ config MMC_RICOH_MMC
 config MMC_SDHCI_ACPI
 	tristate "SDHCI support for ACPI enumerated SDHCI controllers"
 	depends on MMC_SDHCI && ACPI
-	select IOSF_MBI if X86
+	select IOSF_MBI if (X86 && PCI)
 	help
 	  This selects support for ACPI enumerated SDHCI controllers,
 	  identified by ACPI Compatibility ID PNP0D40 or specific
-- 
2.19.0

[PATCH v3 10/11] x86: select IOSF_MBI only when CONFIG_PCI is set

[Sinan Kaya]

Need CONFIG_PCI to be set in order to be able to use IOSF_MBI
functionality.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 arch/x86/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index cc4f0c6ee1ed..322a58ababb0 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -617,7 +617,7 @@ config X86_INTEL_QUARK
 
 config X86_INTEL_LPSS
 	bool "Intel Low Power Subsystem Support"
-	depends on X86 && ACPI
+	depends on X86 && ACPI && PCI
 	select COMMON_CLK
 	select PINCTRL
 	select IOSF_MBI
-- 
2.19.0

[PATCH v3 11/11] drivers: thermal: int340x_thermal: Make PCI dependency explicit

[Sinan Kaya]

IOSF_CORE depends on PCI. This was never mentioned.

Signed-off-by: Sinan Kaya <okaya@kernel.org>
---
 drivers/thermal/intel/int340x_thermal/Kconfig | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/thermal/intel/int340x_thermal/Kconfig b/drivers/thermal/intel/int340x_thermal/Kconfig
index fba1976d5f8d..2acddf8fb314 100644
--- a/drivers/thermal/intel/int340x_thermal/Kconfig
+++ b/drivers/thermal/intel/int340x_thermal/Kconfig
@@ -4,7 +4,7 @@
 
 config INT340X_THERMAL
 	tristate "ACPI INT340X thermal drivers"
-	depends on X86 && ACPI
+	depends on X86 && ACPI && PCI
 	select THERMAL_GOV_USER_SPACE
 	select ACPI_THERMAL_REL
 	select ACPI_FAN
-- 
2.19.0

Re: [PATCH v3 10/11] x86: select IOSF_MBI only when CONFIG_PCI is set

[Rafael J. Wysocki]

On Mon, Dec 24, 2018 at 12:25 AM Sinan Kaya <okaya@kernel.org> wrote:
>
> Need CONFIG_PCI to be set in order to be able to use IOSF_MBI
> functionality.
>
> Signed-off-by: Sinan Kaya <okaya@kernel.org>

The subject and changelog here don't match the changes below.  Please fix.

> ---
>  arch/x86/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> index cc4f0c6ee1ed..322a58ababb0 100644
> --- a/arch/x86/Kconfig
> +++ b/arch/x86/Kconfig
> @@ -617,7 +617,7 @@ config X86_INTEL_QUARK
>
>  config X86_INTEL_LPSS
>         bool "Intel Low Power Subsystem Support"
> -       depends on X86 && ACPI
> +       depends on X86 && ACPI && PCI
>         select COMMON_CLK
>         select PINCTRL
>         select IOSF_MBI
> --
> 2.19.0
>

Re: [PATCH v3 09/11] mmc: add PCI dependency into IOSF_MBI

[Rafael J. Wysocki]

On Mon, Dec 24, 2018 at 12:26 AM Sinan Kaya <okaya@kernel.org> wrote:
>
> Select IOSF_MBI only when PCI is set.
>
> Signed-off-by: Sinan Kaya <okaya@kernel.org>
> ---
>  drivers/mmc/host/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> index e26b8145efb3..4c5f037b246d 100644
> --- a/drivers/mmc/host/Kconfig
> +++ b/drivers/mmc/host/Kconfig
> @@ -117,7 +117,7 @@ config MMC_RICOH_MMC
>  config MMC_SDHCI_ACPI
>         tristate "SDHCI support for ACPI enumerated SDHCI controllers"
>         depends on MMC_SDHCI && ACPI

It should depend on PCI as well, shouldn't it?

As it stands with the patch applied, randconfig can still select it if
PCI is unset AFAICS, can't it?

> -       select IOSF_MBI if X86
> +       select IOSF_MBI if (X86 && PCI)
>         help
>           This selects support for ACPI enumerated SDHCI controllers,
>           identified by ACPI Compatibility ID PNP0D40 or specific
> --

Re: [PATCH v3 08/11] ASoC: Intel: atom: Make PCI dependency explicit

[Pierre-Louis Bossart]

On 12/23/18 5:25 PM, Sinan Kaya wrote:
> Code does unconditional select for IOSF_MBI. IOSF_MBI driver depends on
> CONFIG_PCI set but this is not specified anywhere.

Can you please share the .config that exposes this problem? This hasn't 
changed in a long time and I wonder why this pops up now. You have 
similar cases elsewhere, e.g. arch/x86/Kconfig

config X86_INTEL_LPSS
     bool "Intel Low Power Subsystem Support"
     depends on X86 && ACPI
     select COMMON_CLK
     select PINCTRL
     select IOSF_MBI

or for the MMC.

config MMC_SDHCI_ACPI
     tristate "SDHCI support for ACPI enumerated SDHCI controllers"
     depends on MMC_SDHCI && ACPI
     select IOSF_MBI if X86

The use of IOSF_MBI is only for the Baytrail-CR detection and there are 
already in-flight patches to change the code and move it to a helper.

My understanding is that for compilation you only need CONFIG_x86 since 
there are fall-back routines available in iosf_mbi.h

Thanks!

>
> Signed-off-by: Sinan Kaya <okaya@kernel.org>
> ---
>   sound/soc/intel/Kconfig | 2 +-
>   1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
> index 2fd1b61e8331..b0764b2fe001 100644
> --- a/sound/soc/intel/Kconfig
> +++ b/sound/soc/intel/Kconfig
> @@ -91,7 +91,7 @@ config SND_SST_ATOM_HIFI2_PLATFORM_PCI
>   config SND_SST_ATOM_HIFI2_PLATFORM_ACPI
>   	tristate "ACPI HiFi2 (Baytrail, Cherrytrail) Platforms"
>   	default ACPI
> -	depends on X86 && ACPI
> +	depends on X86 && ACPI && PCI
>   	select SND_SST_IPC_ACPI
>   	select SND_SST_ATOM_HIFI2_PLATFORM
>   	select SND_SOC_ACPI_INTEL_MATCH

Re: [PATCH v3 08/11] ASoC: Intel: atom: Make PCI dependency explicit

[Sinan Kaya]

On Wed, Dec 26, 2018 at 8:35 PM Pierre-Louis Bossart
<pierre-louis.bossart@linux.intel.com> wrote:
>
>
> On 12/23/18 5:25 PM, Sinan Kaya wrote:
> > Code does unconditional select for IOSF_MBI. IOSF_MBI driver depends on
> > CONFIG_PCI set but this is not specified anywhere.
>
> Can you please share the .config that exposes this problem? This hasn't
> changed in a long time and I wonder why this pops up now. You have
> similar cases elsewhere, e.g. arch/x86/Kconfig
>
Here is the background :

I have a changeset that was added to 4.21-rc1 that decouples  ACPI from
PCI. PCI was automatically selected when ACPI was chosen before.

This is no longer true.

If a code needs PCI support, it now needs to explicitly state that.

This allows usecase for smaller kernels and component isolation.

> config X86_INTEL_LPSS
>      bool "Intel Low Power Subsystem Support"
>      depends on X86 && ACPI
>      select COMMON_CLK
>      select PINCTRL
>      select IOSF_MBI
>
> or for the MMC.
>
> config MMC_SDHCI_ACPI
>      tristate "SDHCI support for ACPI enumerated SDHCI controllers"
>      depends on MMC_SDHCI && ACPI
>      select IOSF_MBI if X86
>
> The use of IOSF_MBI is only for the Baytrail-CR detection and there are
> already in-flight patches to change the code and move it to a helper.
>
> My understanding is that for compilation you only need CONFIG_x86 since
> there are fall-back routines available in iosf_mbi.h
>
> Thanks!
>
> >
> > Signed-off-by: Sinan Kaya <okaya@kernel.org>
> > ---
> >   sound/soc/intel/Kconfig | 2 +-
> >   1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/sound/soc/intel/Kconfig b/sound/soc/intel/Kconfig
> > index 2fd1b61e8331..b0764b2fe001 100644
> > --- a/sound/soc/intel/Kconfig
> > +++ b/sound/soc/intel/Kconfig
> > @@ -91,7 +91,7 @@ config SND_SST_ATOM_HIFI2_PLATFORM_PCI
> >   config SND_SST_ATOM_HIFI2_PLATFORM_ACPI
> >       tristate "ACPI HiFi2 (Baytrail, Cherrytrail) Platforms"
> >       default ACPI
> > -     depends on X86 && ACPI
> > +     depends on X86 && ACPI && PCI
> >       select SND_SST_IPC_ACPI
> >       select SND_SST_ATOM_HIFI2_PLATFORM
> >       select SND_SOC_ACPI_INTEL_MATCH

Re: [PATCH v3 09/11] mmc: add PCI dependency into IOSF_MBI

[Sinan Kaya]

On Wed, Dec 26, 2018 at 12:41 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
>
> On Mon, Dec 24, 2018 at 12:26 AM Sinan Kaya <okaya@kernel.org> wrote:
> >
> > Select IOSF_MBI only when PCI is set.
> >
> > Signed-off-by: Sinan Kaya <okaya@kernel.org>
> > ---
> >  drivers/mmc/host/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> > index e26b8145efb3..4c5f037b246d 100644
> > --- a/drivers/mmc/host/Kconfig
> > +++ b/drivers/mmc/host/Kconfig
> > @@ -117,7 +117,7 @@ config MMC_RICOH_MMC
> >  config MMC_SDHCI_ACPI
> >         tristate "SDHCI support for ACPI enumerated SDHCI controllers"
> >         depends on MMC_SDHCI && ACPI
>
> It should depend on PCI as well, shouldn't it?
>

I don't think so. The PCI dependency is at IOSF_MBI code so code
should select IOSF_MBI only when x86 and pci is defined as below.

This driver does not depend on PCI.

> As it stands with the patch applied, randconfig can still select it if
> PCI is unset AFAICS, can't it?

True, we also should be careful about separating ACPI from PCI.
Someone should be able to define a sdhci acpi object without PCI.

What do you think about this?

>
> > -       select IOSF_MBI if X86
> > +       select IOSF_MBI if (X86 && PCI)
> >         help
> >           This selects support for ACPI enumerated SDHCI controllers,
> >           identified by ACPI Compatibility ID PNP0D40 or specific
> > --

Re: [PATCH v3 10/11] x86: select IOSF_MBI only when CONFIG_PCI is set

[Sinan Kaya]

On Tue, Dec 25, 2018 at 12:14 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
>
> On Mon, Dec 24, 2018 at 12:25 AM Sinan Kaya <okaya@kernel.org> wrote:
> >
> > Need CONFIG_PCI to be set in order to be able to use IOSF_MBI
> > functionality.
> >
> > Signed-off-by: Sinan Kaya <okaya@kernel.org>
>
> The subject and changelog here don't match the changes below.  Please fix.
>

Done

> > ---
> >  arch/x86/Kconfig | 2 +-
> >  1 file changed, 1 insertion(+), 1 deletion(-)
> >
> > diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
> > index cc4f0c6ee1ed..322a58ababb0 100644
> > --- a/arch/x86/Kconfig
> > +++ b/arch/x86/Kconfig
> > @@ -617,7 +617,7 @@ config X86_INTEL_QUARK
> >
> >  config X86_INTEL_LPSS
> >         bool "Intel Low Power Subsystem Support"
> > -       depends on X86 && ACPI
> > +       depends on X86 && ACPI && PCI
> >         select COMMON_CLK
> >         select PINCTRL
> >         select IOSF_MBI
> > --
> > 2.19.0
> >

Re: [PATCH v3 09/11] mmc: add PCI dependency into IOSF_MBI

[Rafael J. Wysocki]

On Sun, Dec 30, 2018 at 7:57 PM Sinan Kaya <Okaya@kernel.org> wrote:
>
> On Wed, Dec 26, 2018 at 12:41 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
> >
> > On Mon, Dec 24, 2018 at 12:26 AM Sinan Kaya <okaya@kernel.org> wrote:
> > >
> > > Select IOSF_MBI only when PCI is set.
> > >
> > > Signed-off-by: Sinan Kaya <okaya@kernel.org>
> > > ---
> > >  drivers/mmc/host/Kconfig | 2 +-
> > >  1 file changed, 1 insertion(+), 1 deletion(-)
> > >
> > > diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> > > index e26b8145efb3..4c5f037b246d 100644
> > > --- a/drivers/mmc/host/Kconfig
> > > +++ b/drivers/mmc/host/Kconfig
> > > @@ -117,7 +117,7 @@ config MMC_RICOH_MMC
> > >  config MMC_SDHCI_ACPI
> > >         tristate "SDHCI support for ACPI enumerated SDHCI controllers"
> > >         depends on MMC_SDHCI && ACPI
> >
> > It should depend on PCI as well, shouldn't it?
> >
>
> I don't think so. The PCI dependency is at IOSF_MBI code so code
> should select IOSF_MBI only when x86 and pci is defined as below.
>
> This driver does not depend on PCI.

Are you sure?

Do you know any systems in which to use it without PCI?

Re: [PATCH v3 09/11] mmc: add PCI dependency into IOSF_MBI

[Adrian Hunter]

On 31/12/18 11:40 AM, Rafael J. Wysocki wrote:
> On Sun, Dec 30, 2018 at 7:57 PM Sinan Kaya <Okaya@kernel.org> wrote:
>>
>> On Wed, Dec 26, 2018 at 12:41 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
>>>
>>> On Mon, Dec 24, 2018 at 12:26 AM Sinan Kaya <okaya@kernel.org> wrote:
>>>>
>>>> Select IOSF_MBI only when PCI is set.
>>>>
>>>> Signed-off-by: Sinan Kaya <okaya@kernel.org>
>>>> ---
>>>>  drivers/mmc/host/Kconfig | 2 +-
>>>>  1 file changed, 1 insertion(+), 1 deletion(-)
>>>>
>>>> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
>>>> index e26b8145efb3..4c5f037b246d 100644
>>>> --- a/drivers/mmc/host/Kconfig
>>>> +++ b/drivers/mmc/host/Kconfig
>>>> @@ -117,7 +117,7 @@ config MMC_RICOH_MMC
>>>>  config MMC_SDHCI_ACPI
>>>>         tristate "SDHCI support for ACPI enumerated SDHCI controllers"
>>>>         depends on MMC_SDHCI && ACPI
>>>
>>> It should depend on PCI as well, shouldn't it?
>>>
>>
>> I don't think so. The PCI dependency is at IOSF_MBI code so code
>> should select IOSF_MBI only when x86 and pci is defined as below.
>>
>> This driver does not depend on PCI.
> 
> Are you sure?
> 
> Do you know any systems in which to use it without PCI?
> 

Qualcomm use it and I don't know if those systems have PCI.
AMD use it but probably also have PCI.  And yes Intel systems (just BYT and
CHT IIRC) that use this driver will always have PCI.

Re: [PATCH v3 09/11] mmc: add PCI dependency into IOSF_MBI

[Sinan Kaya]

On Wed, Jan 2, 2019 at 2:04 PM Adrian Hunter <adrian.hunter@intel.com> wrote:
>
> On 31/12/18 11:40 AM, Rafael J. Wysocki wrote:
> > On Sun, Dec 30, 2018 at 7:57 PM Sinan Kaya <Okaya@kernel.org> wrote:
> >>
> >> On Wed, Dec 26, 2018 at 12:41 PM Rafael J. Wysocki <rafael@kernel.org> wrote:
> >>>
> >>> On Mon, Dec 24, 2018 at 12:26 AM Sinan Kaya <okaya@kernel.org> wrote:
> >>>>
> >>>> Select IOSF_MBI only when PCI is set.
> >>>>
> >>>> Signed-off-by: Sinan Kaya <okaya@kernel.org>
> >>>> ---
> >>>>  drivers/mmc/host/Kconfig | 2 +-
> >>>>  1 file changed, 1 insertion(+), 1 deletion(-)
> >>>>
> >>>> diff --git a/drivers/mmc/host/Kconfig b/drivers/mmc/host/Kconfig
> >>>> index e26b8145efb3..4c5f037b246d 100644
> >>>> --- a/drivers/mmc/host/Kconfig
> >>>> +++ b/drivers/mmc/host/Kconfig
> >>>> @@ -117,7 +117,7 @@ config MMC_RICOH_MMC
> >>>>  config MMC_SDHCI_ACPI
> >>>>         tristate "SDHCI support for ACPI enumerated SDHCI controllers"
> >>>>         depends on MMC_SDHCI && ACPI
> >>>
> >>> It should depend on PCI as well, shouldn't it?
> >>>
> >>
> >> I don't think so. The PCI dependency is at IOSF_MBI code so code
> >> should select IOSF_MBI only when x86 and pci is defined as below.
> >>
> >> This driver does not depend on PCI.
> >
> > Are you sure?
> >
> > Do you know any systems in which to use it without PCI?
> >
>
> Qualcomm use it and I don't know if those systems have PCI.
> AMD use it but probably also have PCI.  And yes Intel systems (just BYT and
> CHT IIRC) that use this driver will always have PCI.

QCOM doesn't use PCI for SDHC.