linux/drivers/mailbox, branch v5.14

mbox: add polarfire soc system controller mailbox

2021-06-26T17:06:48Z

This driver adds support for the single mailbox channel of the MSS system controller on the Microchip PolarFire SoC. Signed-off-by: Conor Dooley Signed-off-by: Jassi Brar

mailbox: imx: Avoid using val uninitialized in imx_mu_isr()

2021-06-26T17:06:18Z

Clang warns: drivers/mailbox/imx-mailbox.c:284:2: warning: variable 'val' is used uninitialized whenever switch default is taken [-Wsometimes-uninitialized] default: ^~~~~~~ drivers/mailbox/imx-mailbox.c:288:7: note: uninitialized use occurs here if (!val) ^~~ drivers/mailbox/imx-mailbox.c:263:9: note: initialize the variable 'val' to silence this warning u32 val, ctrl; ^ = 0 1 warning generated. Prior to commit 91c8c1fbe498 ("mailbox: imx: add xSR/xCR register array"), val was always initialized in imx_mu_isr() but now, it is not initialized in the default case. Return IRQ_NONE like the statement below does and add a message that there is an unhandled type for this switch statement so that it can be updated. Fixes: 91c8c1fbe498 ("mailbox: imx: add xSR/xCR register array") Link: https://github.com/ClangBuiltLinux/linux/issues/1404 Signed-off-by: Nathan Chancellor Signed-off-by: Jassi Brar

mailbox: qcom: Add MSM8939 APCS support

2021-06-26T17:05:28Z

Enable MSM8939 APCS support by adding the compatible. It reuses msm8916_apcs_data. Signed-off-by: Shawn Guo Signed-off-by: Jassi Brar

mailbox: qcom: Use PLATFORM_DEVID_AUTO to register platform device

2021-06-26T17:05:21Z

In adding APCS clock support for MSM8939, the second clock registration fails due to duplicate device name like below. [ 0.519657] sysfs: cannot create duplicate filename '/bus/platform/devices/qcom-apcs-msm8916-clk' ... [ 0.661158] qcom_apcs_ipc b111000.mailbox: failed to register APCS clk This is because MSM8939 has 3 APCS instances for Cluster0 (little cores), Cluster1 (big cores) and CCI (Cache Coherent Interconnect). Although only APCS of Cluster0 and Cluster1 have IPC bits, each of 3 APCS has A53PLL clock control bits. That said, 3 'qcom-apcs-msm8916-clk' devices need to be registered to instantiate all 3 clocks. Use PLATFORM_DEVID_AUTO rather than PLATFORM_DEVID_NONE for platform_device_register_data() call to fix the issue above. Signed-off-by: Shawn Guo Reviewed-by: Bjorn Andersson Signed-off-by: Jassi Brar

mailbox: qcom-apcs: Add SM6125 compatible

2021-06-26T16:55:52Z

This commit adds compatible for the SM6125 SoC Signed-off-by: Martin Botka Signed-off-by: Jassi Brar

mailbox: mtk-cmdq: Fix uninitialized variable in cmdq_mbox_flush()

2021-06-26T16:41:47Z

The "cb" pointer needs to be initialized before can assign "data.data = cb->data;". Signed-off-by: Dan Carpenter Reviewed-by: Chun-Kuang Hu Signed-off-by: Jassi Brar

mailbox: bcm-flexrm-mailbox: Remove redundant dev_err call in flexrm_mbox_probe()

2021-06-26T16:40:34Z

There is a error message within devm_ioremap_resource already, so remove the dev_err call to avoid redundant error message. Reported-by: Hulk Robot Signed-off-by: Zhihao Cheng Signed-off-by: Jassi Brar

mailbox: bcm2835: Remove redundant dev_err call in bcm2835_mbox_probe()

2021-06-26T16:40:32Z

mailbox: qcom-ipcc: Fix IPCC mbox channel exhaustion

2021-06-26T16:40:29Z

Fix IPCC (Inter-Processor Communication Controller) channel exhaustion by setting the channel private data to NULL on mbox shutdown. Err Logs: remoteproc: MBA booted without debug policy, loading mpss remoteproc: glink-edge: failed to acquire IPC channel remoteproc: failed to probe subdevices for remoteproc: -16 Fixes: fa74a0257f45 ("mailbox: Add support for Qualcomm IPCC") Signed-off-by: Sibi Sankar Cc: stable@vger.kernel.org Reviewed-by: Bjorn Andersson Reviewed-by: Manivannan Sadhasivam Signed-off-by: Jassi Brar

mailbox: mtk-cmdq: Add struct cmdq_pkt in struct cmdq_cb_data

2021-06-26T16:40:20Z

Current client use 'struct cmdq_pkt' as callback data, so change 'void *data' to 'struct cmdq_pkt *pkt'. Keep data until client use pkt instead of data. Signed-off-by: Chun-Kuang Hu Reviewed-by: Yongqiang Niu Signed-off-by: Jassi Brar