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SubjectRe: [PATCH v6 07/11] i2c: designware: Discard Cherry Trail model flag
On Thu, May 28, 2020 at 12:33:17PM +0300, Serge Semin wrote:
> A PM workaround activated by the flag MODEL_CHERRYTRAIL has been removed
> since commit 9cbeeca05049 ("i2c: designware: Remove Cherry Trail PMIC I2C
> bus pm_disabled workaround"), but the flag most likely by mistake has been
> left in the Dw I2C drivers. Let's remove it. Since MODEL_MSCC_OCELOT is
> the only model-flag left, redefine it to be 0x100 so setting a very first
> bit in the MODEL_MASK bits range.

Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Conditionally, in case Wolfram and Jarkko are fine with shuffling model
defines, which I consider an unneeded churn.

> Signed-off-by: Serge Semin <Sergey.Semin@baikalelectronics.ru>
> Acked-by: Jarkko Nikula <jarkko.nikula@linux.intel.com>
> Cc: Alexey Malahov <Alexey.Malahov@baikalelectronics.ru>
> Cc: Thomas Bogendoerfer <tsbogend@alpha.franken.de>
> Cc: Rob Herring <robh+dt@kernel.org>
> Cc: linux-mips@vger.kernel.org
> Cc: devicetree@vger.kernel.org
>
> ---
>
> Changelog v3:
> - Since MSCC and Baikal-T1 will be a part of the platform driver code, we
> have to preserve the MODEL_MASK macro to use it to filter the model
> flags during the IP-specific quirks activation.
> ---
> drivers/i2c/busses/i2c-designware-core.h | 3 +--
> drivers/i2c/busses/i2c-designware-pcidrv.c | 1 -
> drivers/i2c/busses/i2c-designware-platdrv.c | 2 +-
> 3 files changed, 2 insertions(+), 4 deletions(-)
>
> diff --git a/drivers/i2c/busses/i2c-designware-core.h b/drivers/i2c/busses/i2c-designware-core.h
> index 150de5e5c31b..b9ef9b0deef0 100644
> --- a/drivers/i2c/busses/i2c-designware-core.h
> +++ b/drivers/i2c/busses/i2c-designware-core.h
> @@ -289,8 +289,7 @@ struct dw_i2c_dev {
> #define ACCESS_INTR_MASK 0x00000004
> #define ACCESS_NO_IRQ_SUSPEND 0x00000008
>
> -#define MODEL_CHERRYTRAIL 0x00000100
> -#define MODEL_MSCC_OCELOT 0x00000200
> +#define MODEL_MSCC_OCELOT 0x00000100
> #define MODEL_MASK 0x00000f00
>
> u32 dw_readl(struct dw_i2c_dev *dev, int offset);
> diff --git a/drivers/i2c/busses/i2c-designware-pcidrv.c b/drivers/i2c/busses/i2c-designware-pcidrv.c
> index 11a5e4751eab..947c096f86e3 100644
> --- a/drivers/i2c/busses/i2c-designware-pcidrv.c
> +++ b/drivers/i2c/busses/i2c-designware-pcidrv.c
> @@ -149,7 +149,6 @@ static struct dw_pci_controller dw_pci_controllers[] = {
> },
> [cherrytrail] = {
> .bus_num = -1,
> - .flags = MODEL_CHERRYTRAIL,
> .scl_sda_cfg = &byt_config,
> },
> [elkhartlake] = {
> diff --git a/drivers/i2c/busses/i2c-designware-platdrv.c b/drivers/i2c/busses/i2c-designware-platdrv.c
> index f6d2c96e35ce..ca057aa9eac4 100644
> --- a/drivers/i2c/busses/i2c-designware-platdrv.c
> +++ b/drivers/i2c/busses/i2c-designware-platdrv.c
> @@ -44,7 +44,7 @@ static const struct acpi_device_id dw_i2c_acpi_match[] = {
> { "INT3432", 0 },
> { "INT3433", 0 },
> { "80860F41", ACCESS_NO_IRQ_SUSPEND },
> - { "808622C1", ACCESS_NO_IRQ_SUSPEND | MODEL_CHERRYTRAIL },
> + { "808622C1", ACCESS_NO_IRQ_SUSPEND },
> { "AMD0010", ACCESS_INTR_MASK },
> { "AMDI0010", ACCESS_INTR_MASK },
> { "AMDI0510", 0 },
> --
> 2.26.2
>

--
With Best Regards,
Andy Shevchenko


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