kernel/linux.git/drivers/soc/hisilicon, branch v6.19.11

soc: hisilicon: kunpeng_hccs: Fix spelling mistake "decrese" -> "decrease"

2025-08-28T11:23:08+00:00

There is a spelling mistake in a dev_err message. Fix it. Fixes: e3c289c0916e ("soc: hisilicon: kunpeng_hccs: Support low power feature for the specified HCCS type") Signed-off-by: Colin Ian King Reviewed-by: Huisong Li Signed-off-by: Wei Xu

soc: hisilicon: kunpeng_hccs: Fix incorrect log information

2025-07-18T07:27:26+00:00

The hccs_get_all_spec_port_idle_sta() will tell user which port is busy when firmware doesn't allow to decrease HCCS lane number. However, the current log prints the index of die and port instead of the hardware ID user perceived. Signed-off-by: Huisong Li Reviewed-by: Jonathan Cameron Signed-off-by: Wei Xu

soc: hisilicon: kunpeng_hccs: Simplify PCC shared memory region handling

2025-04-21T12:00:27+00:00

The PCC driver now handles mapping and unmapping of shared memory areas as part of pcc_mbox_{request,free}_channel(). Without these before, this Kunpeng HCCS driver did handling of those mappings like several other PCC mailbox client drivers. There were redundant operations, leading to unnecessary code. Maintaining the consistency across these driver was harder due to scattered handling of shmem. Just use the mapped shmem and remove all redundant operations from this driver. Cc: Huisong Li Signed-off-by: Sudeep Holla Reviewed-by: Huisong Li Signed-off-by: Wei Xu

soc: hisilicon: kunpeng_hccs: Fix incorrect string assembly

2025-03-14T17:03:55+00:00

String assembly should use sysfs_emit_at() instead of sysfs_emit(). Fixes: 23fe8112a231 ("soc: hisilicon: kunpeng_hccs: Add used HCCS types sysfs") Reviewed-by: Jonathan Cameron Signed-off-by: Huisong Li Link: https://lore.kernel.org/r/20250314100143.3377268-1-lihuisong@huawei.com Signed-off-by: Arnd Bergmann

Merge tag 'hisi-drivers-for-6.13' of https://github.com/hisilicon/linux-hisi into arm/drivers

2024-11-01T16:10:16+00:00

HiSilicon driver updates for v6.13 - Add the sysfs to show all HCCS types used on the platform - Add the low power feature for HCCS by adjusting the lane number - Few cleanups and improvements: correct a PCC typo, verify the die, port information, base address and size, update the lane_mode to max_lane_num * tag 'hisi-drivers-for-6.13' of https://github.com/hisilicon/linux-hisi: soc: hisilicon: kunpeng_hccs: Support low power feature for the specified HCCS type soc: hisilicon: kunpeng_hccs: Add used HCCS types sysfs soc: hisilicon: kunpeng_hccs: Fix the 'lane_mode' field name in port info structure to 'max_lane_num' soc: hisilicon: kunpeng_hccs: Add the check for base address and size of shared memory soc: hisilicon: kunpeng_hccs: Return failure on having not die or port information soc: hisilicon: kunpeng_hccs: Fix a PCC typo Link: https://lore.kernel.org/r/671B3FBD.8050905@hisilicon.com Signed-off-by: Arnd Bergmann

soc: Switch back to struct platform_driver::remove()

2024-11-01T16:08:57+00:00

After commit 0edb555a65d1 ("platform: Make platform_driver::remove() return void") .remove() is (again) the right callback to implement for platform drivers. Convert all platform drivers below drivers/soc to use .remove(), with the eventual goal to drop struct platform_driver::remove_new(). As .remove() and .remove_new() have the same prototypes, conversion is done by just changing the structure member name in the driver initializer. On the way do a few whitespace changes to make indention consistent. Signed-off-by: Uwe Kleine-König Acked-by: Heiko Stuebner Acked-by: Herve Codina # for fsl/qe/{qmc,tsa}.c Acked-by: Bjorn Andersson # qcom parts Acked-by: Gabriel Somlo Acked-by: Andrew Jeffery # aspeed Link: https://lore.kernel.org/r/20241029074859.509587-2-u.kleine-koenig@baylibre.com Signed-off-by: Arnd Bergmann

soc: hisilicon: kunpeng_hccs: Support low power feature for the specified HCCS type

2024-10-14T08:54:51+00:00

Add the low power feature for the specified HCCS type by increasing and decreasing the used lane number of these HCCS ports on platform. Signed-off-by: Huisong Li Reviewed-by: Jonathan Cameron Signed-off-by: Wei Xu

soc: hisilicon: kunpeng_hccs: Add used HCCS types sysfs

2024-10-14T08:54:50+00:00

Kunpeng_hccs driver supports multiple HCCS types used on one platform at the same time. In this case, to find which HCCS types are used on the platform the user needs to scan the type attribute of all ports, which is unfriendly to the user. In addition, the aggregated information is also useful for global control like the low power feature. So add the sysfs to show all HCCS types used on the platform. Signed-off-by: Huisong Li Reviewed-by: Jonathan Cameron Signed-off-by: Wei Xu

soc: hisilicon: kunpeng_hccs: Fix the 'lane_mode' field name in port info structure to 'max_lane_num'

2024-10-14T08:54:49+00:00

The lane mode of HCCS port is an information to user, and actually comes from the maximum lane number. But it is good and easy for driver to use the maximum lane number. So fix the 'lane_mode' field name in port info structure to 'max_lane_num'. Signed-off-by: Huisong Li Reviewed-by: Jonathan Cameron Signed-off-by: Wei Xu

soc: hisilicon: kunpeng_hccs: Add the check for base address and size of shared memory

2024-10-14T08:54:48+00:00

If the shmem_base_addr from PCCT is zero, hccs_register_pcc_channel will return success. And then driver will access to illegal address when send PCC command. In addition, the size of shared memory used for communication between driver and platform is fixed, namely 64 Bytes which is unchangeable. So add the verification for hardening code. Signed-off-by: Huisong Li Reviewed-by: Jonathan Cameron Signed-off-by: Wei Xu