kernel.git/drivers/soc/hisilicon, branch linux-6.7.y

Merge tag 'soc-drivers-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2023-11-02T00:46:51Z

Pull SoC driver updates from Arnd Bergmann: "The highlights for the driver support this time are - Qualcomm platforms gain support for the Qualcomm Secure Execution Environment firmware interface to access EFI variables on certain devices, and new features for multiple platform and firmware drivers. - Arm FF-A firmware support gains support for v1.1 specification features, in particular notification and memory transaction descriptor changes. - SCMI firmware support now support v3.2 features for clock and DVFS configuration and a new transport for Qualcomm platforms. - Minor cleanups and bugfixes are added to pretty much all the active platforms: qualcomm, broadcom, dove, ti-k3, rockchip, sifive, amlogic, atmel, tegra, aspeed, vexpress, mediatek, samsung and more. In particular, this contains portions of the treewide conversion to use __counted_by annotations and the device_get_match_data helper" * tag 'soc-drivers-6.7' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (156 commits) soc: qcom: pmic_glink_altmode: Print return value on error firmware: qcom: scm: remove unneeded 'extern' specifiers firmware: qcom: scm: add a missing forward declaration for struct device firmware: qcom: move Qualcomm code into its own directory soc: samsung: exynos-chipid: Convert to platform remove callback returning void soc: qcom: apr: Add __counted_by for struct apr_rx_buf and use struct_size() soc: qcom: pmic_glink: fix connector type to be DisplayPort soc: ti: k3-socinfo: Avoid overriding return value soc: ti: k3-socinfo: Fix typo in bitfield documentation soc: ti: knav_qmss_queue: Use device_get_match_data() firmware: ti_sci: Use device_get_match_data() firmware: qcom: qseecom: add missing include guards soc/pxa: ssp: Convert to platform remove callback returning void soc/mediatek: mtk-mmsys: Convert to platform remove callback returning void soc/mediatek: mtk-devapc: Convert to platform remove callback returning void soc/loongson: loongson2_guts: Convert to platform remove callback returning void soc/litex: litex_soc_ctrl: Convert to platform remove callback returning void soc/ixp4xx: ixp4xx-qmgr: Convert to platform remove callback returning void soc/ixp4xx: ixp4xx-npe: Convert to platform remove callback returning void soc/hisilicon: kunpeng_hccs: Convert to platform remove callback returning void ...

soc/hisilicon: kunpeng_hccs: Convert to platform remove callback returning void

2023-10-14T21:27:05Z

The .remove() callback for a platform driver returns an int which makes many driver authors wrongly assume it's possible to do error handling by returning an error code. However the value returned is ignored (apart from emitting a warning) and this typically results in resource leaks. To improve here there is a quest to make the remove callback return void. In the first step of this quest all drivers are converted to .remove_new() which already returns void. Eventually after all drivers are converted, .remove_new() will be renamed to .remove(). Trivially convert this driver from always returning zero in the remove callback to the void returning variant. Link: https://lore.kernel.org/r/20230925095532.1984344-10-u.kleine-koenig@pengutronix.de Signed-off-by: Uwe Kleine-König

soc: kunpeng_hccs: Migrate to use generic PCC shmem related macros

2023-09-29T10:55:37Z

Use the newly defined common and generic PCC shared memory region related macros in this driver to replace the locally defined ones. Cc: Huisong Li Reviewed-by: Huisong Li Link: https://lore.kernel.org/r/20230927-pcc_defines-v2-4-0b8ffeaef2e5@arm.com Signed-off-by: Sudeep Holla

soc: kunpeng_hccs: fix some sparse warnings about incorrect type

2023-08-22T01:05:11Z

This patch fixes some sparse warnings about incorrect type. The address about PCC communication space should use '__iomem' tag. Reported-by: kernel test robot Closes: https://lore.kernel.org/oe-kbuild-all/202308151142.dH5Muhva-lkp@intel.com/ Fixes: 886bdf9c883b ("soc: hisilicon: Support HCCS driver on Kunpeng SoC") Signed-off-by: Huisong Li Link: https://lore.kernel.org/r/20230816073706.33297-1-lihuisong@huawei.com Signed-off-by: Arnd Bergmann

soc: kunpeng_hccs: add MAILBOX dependency

2023-08-14T15:00:13Z

When the mailbox subsystem is disabled, the driver fails to link, so add an explicit dependency. Some other drivers use 'select' here, but the dependency seems more logical and more common. Fixes: 886bdf9c883bc ("soc: hisilicon: Support HCCS driver on Kunpeng SoC") Signed-off-by: Arnd Bergmann

soc: kunpeng_hccs: fix size_t format string

2023-08-12T17:20:11Z

Printing a size_t using the %lu format string causes a warning on architectures that define the type as 'unsigned int': In file included from include/linux/device.h:15, from include/linux/acpi.h:14, from drivers/soc/hisilicon/kunpeng_hccs.c:25: drivers/soc/hisilicon/kunpeng_hccs.c: In function 'hccs_get_bd_info': drivers/soc/hisilicon/kunpeng_hccs.c:441:25: error: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t' {aka 'unsigned int'} [-Werror=format=] Use the correct %zu format instead. Fixes: 886bdf9c883bc ("soc: hisilicon: Support HCCS driver on Kunpeng SoC") Signed-off-by: Arnd Bergmann

soc: hisilicon: add sysfs entry to query information of HCCS

2023-08-08T12:36:30Z

This patch creates chip, die and port directory based on the actual hardware implementation of platform. Some sysfs entries under these directories are created to query the health status and port information of HCCS. Signed-off-by: Huisong Li Signed-off-by: Wei Xu

soc: hisilicon: Support HCCS driver on Kunpeng SoC

2023-08-08T12:36:29Z

The Huawei Cache Coherence System (HCCS) is a multi-chip interconnection bus protocol. This driver is aimed to support some features about HCCS on Kunpeng SoC, like, querying the health status of HCCS. This patch adds the probing of HCCS driver, and obtains all HCCS port information by the dimension of chip and die on platform. Signed-off-by: Huisong Li Signed-off-by: Wei Xu