[PATCH RFC v11 11/12] dmaengine: qcom: bam_dma: Add pipe_lock_supported flag support
From: Bartosz Golaszewski <hidden>
Date: 2026-03-02 15:58:00
Also in:
dmaengine, linux-arm-msm, linux-crypto, linux-doc, lkml
Subsystem:
arm/qualcomm mailing list, dma generic offload engine subsystem, the rest · Maintainers:
Vinod Koul, Linus Torvalds
From: Bartosz Golaszewski <redacted> Extend the device match data with a flag indicating whether the IP supports the BAM lock/unlock feature. Set it to true on BAM IP versions 1.4.0 and above. Signed-off-by: Bartosz Golaszewski <redacted> Reviewed-by: Dmitry Baryshkov <redacted> Signed-off-by: Bartosz Golaszewski <redacted> --- drivers/dma/qcom/bam_dma.c | 3 +++ 1 file changed, 3 insertions(+)
diff --git a/drivers/dma/qcom/bam_dma.c b/drivers/dma/qcom/bam_dma.c
index 8f6d03f6c673b57ed13aeca6c8331c71596d077b..83491e7c2f17d8c9d12a1a055baea7e3a0a75a53 100644
--- a/drivers/dma/qcom/bam_dma.c
+++ b/drivers/dma/qcom/bam_dma.c@@ -115,6 +115,7 @@ struct reg_offset_data { struct bam_device_data { const struct reg_offset_data *reg_info; + bool pipe_lock_supported; }; static const struct reg_offset_data bam_v1_3_reg_info[] = {
@@ -181,6 +182,7 @@ static const struct reg_offset_data bam_v1_4_reg_info[] = { static const struct bam_device_data bam_v1_4_data = { .reg_info = bam_v1_4_reg_info, + .pipe_lock_supported = true, }; static const struct reg_offset_data bam_v1_7_reg_info[] = {
@@ -214,6 +216,7 @@ static const struct reg_offset_data bam_v1_7_reg_info[] = { static const struct bam_device_data bam_v1_7_data = { .reg_info = bam_v1_7_reg_info, + .pipe_lock_supported = true, }; /* BAM CTRL */
--
2.47.3