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| author |   Tom Rini <trini@konsulko.com> | 2017-12-19 16:23:42 -0500 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2017-12-19 16:28:09 -0500 |
| commit | 20f06cccf59ec5588e15917caa94227b93dc597e (patch) | |
| tree | 546f5dff215a3f46fbd54c849e56a737c08906db /meta-rcar-gen3-adas/recipes-kernel/linux | |
| parent | 9ae3b81724f87dcc1f5cbd618c472e0cf79b2791 (diff) | |
| parent | 27fc60c85a12c07109fdd2a7e8fca3c36a837c96 (diff) | |
Merge remote-tracking branch 'origin/pyro' into eel
Signed-off-by: Tom Rini <trini@konsulko.com>
Diffstat (limited to 'meta-rcar-gen3-adas/recipes-kernel/linux')
2 files changed, 38 insertions, 0 deletions
diff --git a/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0001-arm64-dts-renesas-disable-r8a7796-hscif0-dma.patch b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0001-arm64-dts-renesas-disable-r8a7796-hscif0-dma.patch new file mode 100644 index 0000000..31a66b7 --- /dev/null +++ b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas/0001-arm64-dts-renesas-disable-r8a7796-hscif0-dma.patch @@ -0,0 +1,34 @@ +From 9f2cf209ef8235f33683ca941fd0d7bdcca4078d Mon Sep 17 00:00:00 2001 +From: Matt Porter <mporter@konsulko.com> +Date: Sun, 17 Dec 2017 21:44:41 -0500 +Subject: [PATCH] arm64: dts: renesas: disable r8a7796 hscif0 dma + +When streaming A2DP audio on WiLink8, DMA errors are +seen from the rcar-dmac driver servicing hscif0. As +a result, data corruption is seen by the UIM service +managing the link to the Wilink8 device. This data +corruption manifests as dropped frames and audibly as +"skips" in the audio playback. + +Workaround this issue by disabling DMA for hscif0. + +Signed-off-by: Matt Porter <mporter@konsulko.com> +--- + arch/arm64/boot/dts/renesas/r8a7796.dtsi | 1 - + 1 file changed, 1 deletion(-) + +diff --git a/arch/arm64/boot/dts/renesas/r8a7796.dtsi b/arch/arm64/boot/dts/renesas/r8a7796.dtsi +index e3a5c25bc3da..dd97af4bdd60 100644 +--- a/arch/arm64/boot/dts/renesas/r8a7796.dtsi ++++ b/arch/arm64/boot/dts/renesas/r8a7796.dtsi +@@ -1282,7 +1282,6 @@ + <&scif_clk>; + clock-names = "fck", "brg_int", "scif_clk"; + dmas = <&dmac1 0x31>, <&dmac1 0x30>; +- dma-names = "tx", "rx"; + power-domains = <&sysc R8A7796_PD_ALWAYS_ON>; + status = "disabled"; + }; +-- +2.11.0 + diff --git a/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas_4.9.bbappend b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas_4.9.bbappend index 924e309..3cadae6 100644 --- a/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas_4.9.bbappend +++ b/meta-rcar-gen3-adas/recipes-kernel/linux/linux-renesas_4.9.bbappend @@ -6,6 +6,9 @@ COMPATIBLE_MACHINE_v3msk = "v3msk" BRANCH = "v4.9/rcar-3.5.9" SRCREV = "2c20c9881d53f1b5c7a3ebf55bb83ec15902d0d0" +KERNEL_MODULE_PROBECONF += "btwilink" +module_conf_btwilink = "blacklist btwilink" + SRC_URI_remove = " \ file://0001-dmaengine-rcar-dmac-ensure-CHCR-DE-bit-is-actually-0.patch \ file://0002-dmaengine-rcar-dmac-use-TCRB-instead-of-TCR-for-resi.patch \ @@ -81,6 +84,7 @@ SRC_URI_append = " \ file://0080-dmaengine-rcar-dmac-ensure-CHCR-DE-bit-is-actually-0.patch \ file://0081-dmaengine-rcar-dmac-use-TCRB-instead-of-TCR-for-resi.patch \ file://0001-arm64-dts-renesas-preserve-drm-HDMI-connector-naming.patch \ + file://0001-arm64-dts-renesas-disable-r8a7796-hscif0-dma.patch \ " SRC_URI_append_r8a7797 = " \ |