| Message ID | 20250107174514.2748108-1-gwendal@chromium.org (mailing list archive) |
|---|---|
| Headers | show |
| Series | Add support for IO memory mapped EC | expand |
On Tue, Jan 07, 2025 at 09:45:12AM -0800, Gwendal Grignou wrote: > Some EC - Realtek - have their register IO mapped by the BIOS - > coreboot. They are not using the well know io register. > > The memory mapping information is retrieved through the ACPI CRS > resource, and is used to access the registers. > > To ease the support of these ECs, the global structure and accessor > funcions are now aware of the EC device private structure. > > [...] Have removed the redundant title prefix "FROMLIST" and fixed a minor typo. Applied to https://git.kernel.org/pub/scm/linux/kernel/git/chrome-platform/linux.git for-next [1/2] platform/chrome: cros_ec_lpc: Merge lpc_driver_ops into ec private structure commit: 58517215304b6113beaa3a319ed19cdd9f8fbcc1 [2/2] platform/chrome: cros_ec_lpc: Support direct EC register memory access commit: be4fccb5e1fb5c732f2868b9a278e71d9be0283c Thanks!
Some EC - Realtek - have their register IO mapped by the BIOS - coreboot. They are not using the well know io register. The memory mapping information is retrieved through the ACPI CRS resource, and is used to access the registers. To ease the support of these ECs, the global structure and accessor funcions are now aware of the EC device private structure. Gwendal Grignou (2): platform/chrome: cros_ec_lpc: Merge lpc_driver_ops into ec private structure platform/chrome: cros_ec_lpc: Add Support for direct EC register memory access --- Changes in v3: Fix handling of devm_ioremap error Reword commit message to be more descriptive. Changes in v2: Removed obvious comments, unnecessary case statement and fix error code return. drivers/platform/chrome/cros_ec_lpc.c | 203 ++++++++++++++++++-------- 1 file changed, 139 insertions(+), 64 deletions(-)