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SubjectRe: [PATCH v2 1/4] platform/x86: pmc_atom: Fix SLP_TYPx bitfield mask
From
Hi,

On 8/1/22 13:37, Andy Shevchenko wrote:
> On Intel hardware the SLP_TYPx bitfield occupies bits 10-12 as per ACPI
> specification (see Table 4.13 "PM1 Control Registers Fixed Hardware
> Feature Control Bits" for the details).
>
> Fix the mask and other related definitions accordingly.
>
> Fixes: 93e5eadd1f6e ("x86/platform: New Intel Atom SOC power management controller driver")
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>

Thank you for your patch-series, I've applied this series to my
review-hans branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans

Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.

Patches which are added to review-hans now are intended for
the next rc1. This branch will get rebased to the next rc1 when
it is out and after the rebasing the contents of review-hans
will be pushed to the platform-drivers-x86/for-next branch.

Regards,

Hans


> ---
> v2: addressed compilation error
> drivers/platform/x86/pmc_atom.c | 2 +-
> include/linux/platform_data/x86/pmc_atom.h | 6 ++++--
> 2 files changed, 5 insertions(+), 3 deletions(-)
>
> diff --git a/drivers/platform/x86/pmc_atom.c b/drivers/platform/x86/pmc_atom.c
> index b8b1ed1406de..c220172fefbb 100644
> --- a/drivers/platform/x86/pmc_atom.c
> +++ b/drivers/platform/x86/pmc_atom.c
> @@ -232,7 +232,7 @@ static void pmc_power_off(void)
> pm1_cnt_port = acpi_base_addr + PM1_CNT;
>
> pm1_cnt_value = inl(pm1_cnt_port);
> - pm1_cnt_value &= SLEEP_TYPE_MASK;
> + pm1_cnt_value &= ~SLEEP_TYPE_MASK;
> pm1_cnt_value |= SLEEP_TYPE_S5;
> pm1_cnt_value |= SLEEP_ENABLE;
>
> diff --git a/include/linux/platform_data/x86/pmc_atom.h b/include/linux/platform_data/x86/pmc_atom.h
> index 6807839c718b..ea01dd80153b 100644
> --- a/include/linux/platform_data/x86/pmc_atom.h
> +++ b/include/linux/platform_data/x86/pmc_atom.h
> @@ -7,6 +7,8 @@
> #ifndef PMC_ATOM_H
> #define PMC_ATOM_H
>
> +#include <linux/bits.h>
> +
> /* ValleyView Power Control Unit PCI Device ID */
> #define PCI_DEVICE_ID_VLV_PMC 0x0F1C
> /* CherryTrail Power Control Unit PCI Device ID */
> @@ -139,9 +141,9 @@
> #define ACPI_MMIO_REG_LEN 0x100
>
> #define PM1_CNT 0x4
> -#define SLEEP_TYPE_MASK 0xFFFFECFF
> +#define SLEEP_TYPE_MASK GENMASK(12, 10)
> #define SLEEP_TYPE_S5 0x1C00
> -#define SLEEP_ENABLE 0x2000
> +#define SLEEP_ENABLE BIT(13)
>
> extern int pmc_atom_read(int offset, u32 *value);
>

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