[PATCH v2 0/2] ASoC: qcom: Fix broken lpass driver
LPASS driver is partially broken on DragonBoard DB410c on 5.10 and its totally broken on other Supported Qualcomm SoCs.
This was due to DAI ids being over written by the SoC specific header files in the dt-bindings.
Idea of having SoC specific headers is not doable when we are dealing with a common driver. So this patchset attempts to fix this properly by creating a common dt-bindings header for lpass which can be updated with new entries if required. This patchset also add an simple of_xlate function to resolve the dai names and different SoCs might not have 1:1 mapping for the dai_driver array with dai ids.
Changes since v1: - removed array indexes as suggested by Stephan G. - rebased to sound/for-next branch - collected Srinivasa tested-by tag for sc7180 platform.
Thanks, srini
Srinivas Kandagatla (2): ASoC: dt-bindings: lpass: Fix and common up lpass dai ids ASoC: qcom: Fix broken support to MI2S TERTIARY and QUATERNARY
include/dt-bindings/sound/apq8016-lpass.h | 7 +++---- include/dt-bindings/sound/qcom,lpass.h | 15 +++++++++++++++ include/dt-bindings/sound/sc7180-lpass.h | 6 ++---- sound/soc/qcom/lpass-cpu.c | 22 ++++++++++++++++++++++ sound/soc/qcom/lpass-platform.c | 12 ++++++++++++ sound/soc/qcom/lpass-sc7180.c | 9 +++------ sound/soc/qcom/lpass.h | 2 +- 7 files changed, 58 insertions(+), 15 deletions(-) create mode 100644 include/dt-bindings/sound/qcom,lpass.h
Existing header file design of having separate SoC specific header files for the common lpass driver has mutiple issues. This design is prone to break as an when new SoC header is added as the common DAI ids of other SoCs will be overwritten by the new ones.
One of them surfaced by recent patch that adds support to sc7180, this one totally broke LPASS drivers on other Qualcomm SoCs.
Before this gets worst, fix this by having a common header qcom,lpass.h. This should fix the issue and any new DAI ids should be added to the common header. This will be more sustainable then the existing design!
Fixes: 12fbfc4cabec6595 ("ASoC: Add sc7180-lpass binding header hdmi define") Reported-by: Jun Nie jun.nie@linaro.org Reported-by: Stephan Gerhold stephan@gerhold.net Tested-by: Srinivasa Rao srivasam@codeaurora.org Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- include/dt-bindings/sound/apq8016-lpass.h | 7 +++---- include/dt-bindings/sound/qcom,lpass.h | 15 +++++++++++++++ include/dt-bindings/sound/sc7180-lpass.h | 6 ++---- 3 files changed, 20 insertions(+), 8 deletions(-) create mode 100644 include/dt-bindings/sound/qcom,lpass.h
diff --git a/include/dt-bindings/sound/apq8016-lpass.h b/include/dt-bindings/sound/apq8016-lpass.h index 3c3e16c0aadb..dc605c4bc224 100644 --- a/include/dt-bindings/sound/apq8016-lpass.h +++ b/include/dt-bindings/sound/apq8016-lpass.h @@ -2,9 +2,8 @@ #ifndef __DT_APQ8016_LPASS_H #define __DT_APQ8016_LPASS_H
-#define MI2S_PRIMARY 0 -#define MI2S_SECONDARY 1 -#define MI2S_TERTIARY 2 -#define MI2S_QUATERNARY 3 +#include <dt-bindings/sound/qcom,lpass.h> + +/* NOTE: Use qcom,lpass.h to define any AIF ID's for LPASS */
#endif /* __DT_APQ8016_LPASS_H */ diff --git a/include/dt-bindings/sound/qcom,lpass.h b/include/dt-bindings/sound/qcom,lpass.h new file mode 100644 index 000000000000..7b0b80b38699 --- /dev/null +++ b/include/dt-bindings/sound/qcom,lpass.h @@ -0,0 +1,15 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __DT_QCOM_LPASS_H +#define __DT_QCOM_LPASS_H + +#define MI2S_PRIMARY 0 +#define MI2S_SECONDARY 1 +#define MI2S_TERTIARY 2 +#define MI2S_QUATERNARY 3 +#define MI2S_QUINARY 4 + +#define LPASS_DP_RX 5 + +#define LPASS_MCLK0 0 + +#endif /* __DT_QCOM_LPASS_H */ diff --git a/include/dt-bindings/sound/sc7180-lpass.h b/include/dt-bindings/sound/sc7180-lpass.h index 56ecaafd2dc6..5c1ee8b36b19 100644 --- a/include/dt-bindings/sound/sc7180-lpass.h +++ b/include/dt-bindings/sound/sc7180-lpass.h @@ -2,10 +2,8 @@ #ifndef __DT_SC7180_LPASS_H #define __DT_SC7180_LPASS_H
-#define MI2S_PRIMARY 0 -#define MI2S_SECONDARY 1 -#define LPASS_DP_RX 2 +#include <dt-bindings/sound/qcom,lpass.h>
-#define LPASS_MCLK0 0 +/* NOTE: Use qcom,lpass.h to define any AIF ID's for LPASS */
#endif /* __DT_APQ8016_LPASS_H */
lpass hdmi support patch totally removed support for MI2S TERTIARY and QUATERNARY.
One of the major issue was spotted with the design of having separate SoC specific header files for the common lpass driver. This design is prone to break as an when new SoC header is added as the common DAI ids of other SoCs will be overwritten by the new ones.
Having a common header qcom,lpass.h should fix the issue and any new DAI ids should be added to the common header.
With this change lpass also needs a new of_xlate function to resolve dai name.
Fixes: 7cb37b7bd0d3 ("ASoC: qcom: Add support for lpass hdmi driver") Reported-by: Jun Nie jun.nie@linaro.org Reported-by: Stephan Gerhold stephan@gerhold.net Tested-by: Srinivasa Rao srivasam@codeaurora.org Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org --- sound/soc/qcom/lpass-cpu.c | 22 ++++++++++++++++++++++ sound/soc/qcom/lpass-platform.c | 12 ++++++++++++ sound/soc/qcom/lpass-sc7180.c | 9 +++------ sound/soc/qcom/lpass.h | 2 +- 4 files changed, 38 insertions(+), 7 deletions(-)
diff --git a/sound/soc/qcom/lpass-cpu.c b/sound/soc/qcom/lpass-cpu.c index af539e0d7e56..ae8efbc89af2 100644 --- a/sound/soc/qcom/lpass-cpu.c +++ b/sound/soc/qcom/lpass-cpu.c @@ -344,8 +344,30 @@ int asoc_qcom_lpass_cpu_dai_probe(struct snd_soc_dai *dai) } EXPORT_SYMBOL_GPL(asoc_qcom_lpass_cpu_dai_probe);
+static int asoc_qcom_of_xlate_dai_name(struct snd_soc_component *component, + struct of_phandle_args *args, + const char **dai_name) +{ + struct lpass_data *drvdata = snd_soc_component_get_drvdata(component); + struct lpass_variant *variant = drvdata->variant; + int id = args->args[0]; + int ret = -EINVAL; + int i; + + for (i = 0; i < variant->num_dai; i++) { + if (variant->dai_driver[i].id == id) { + *dai_name = variant->dai_driver[i].name; + ret = 0; + break; + } + } + + return ret; +} + static const struct snd_soc_component_driver lpass_cpu_comp_driver = { .name = "lpass-cpu", + .of_xlate_dai_name = asoc_qcom_of_xlate_dai_name, };
static bool lpass_cpu_regmap_writeable(struct device *dev, unsigned int reg) diff --git a/sound/soc/qcom/lpass-platform.c b/sound/soc/qcom/lpass-platform.c index d1c248590f3a..0074b7f2dbc1 100644 --- a/sound/soc/qcom/lpass-platform.c +++ b/sound/soc/qcom/lpass-platform.c @@ -257,6 +257,9 @@ static int lpass_platform_pcmops_hw_params(struct snd_soc_component *component, break; case MI2S_PRIMARY: case MI2S_SECONDARY: + case MI2S_TERTIARY: + case MI2S_QUATERNARY: + case MI2S_QUINARY: ret = regmap_fields_write(dmactl->intf, id, LPAIF_DMACTL_AUDINTF(dma_port)); if (ret) { @@ -507,6 +510,9 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component, break; case MI2S_PRIMARY: case MI2S_SECONDARY: + case MI2S_TERTIARY: + case MI2S_QUATERNARY: + case MI2S_QUINARY: reg_irqclr = LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); val_irqclr = LPAIF_IRQ_ALL(ch);
@@ -559,6 +565,9 @@ static int lpass_platform_pcmops_trigger(struct snd_soc_component *component, break; case MI2S_PRIMARY: case MI2S_SECONDARY: + case MI2S_TERTIARY: + case MI2S_QUATERNARY: + case MI2S_QUINARY: reg_irqen = LPAIF_IRQEN_REG(v, LPAIF_IRQ_PORT_HOST); val_mask = LPAIF_IRQ_ALL(ch); val_irqen = 0; @@ -655,6 +664,9 @@ static irqreturn_t lpass_dma_interrupt_handler( break; case MI2S_PRIMARY: case MI2S_SECONDARY: + case MI2S_TERTIARY: + case MI2S_QUATERNARY: + case MI2S_QUINARY: map = drvdata->lpaif_map; reg = LPAIF_IRQCLEAR_REG(v, LPAIF_IRQ_PORT_HOST); val = 0; diff --git a/sound/soc/qcom/lpass-sc7180.c b/sound/soc/qcom/lpass-sc7180.c index 85db650c2169..8c168d3c589e 100644 --- a/sound/soc/qcom/lpass-sc7180.c +++ b/sound/soc/qcom/lpass-sc7180.c @@ -20,7 +20,7 @@ #include "lpass.h"
static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = { - [MI2S_PRIMARY] = { + { .id = MI2S_PRIMARY, .name = "Primary MI2S", .playback = { @@ -44,9 +44,7 @@ static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = { }, .probe = &asoc_qcom_lpass_cpu_dai_probe, .ops = &asoc_qcom_lpass_cpu_dai_ops, - }, - - [MI2S_SECONDARY] = { + }, { .id = MI2S_SECONDARY, .name = "Secondary MI2S", .playback = { @@ -60,8 +58,7 @@ static struct snd_soc_dai_driver sc7180_lpass_cpu_dai_driver[] = { }, .probe = &asoc_qcom_lpass_cpu_dai_probe, .ops = &asoc_qcom_lpass_cpu_dai_ops, - }, - [LPASS_DP_RX] = { + }, { .id = LPASS_DP_RX, .name = "Hdmi", .playback = { diff --git a/sound/soc/qcom/lpass.h b/sound/soc/qcom/lpass.h index 0195372905ed..2d68af0da34d 100644 --- a/sound/soc/qcom/lpass.h +++ b/sound/soc/qcom/lpass.h @@ -12,7 +12,7 @@ #include <linux/compiler.h> #include <linux/platform_device.h> #include <linux/regmap.h> -#include <dt-bindings/sound/sc7180-lpass.h> +#include <dt-bindings/sound/qcom,lpass.h> #include "lpass-hdmi.h"
#define LPASS_AHBIX_CLOCK_FREQUENCY 131072000
On Tue, Jan 19, 2021 at 05:15:27PM +0000, Srinivas Kandagatla wrote:
lpass hdmi support patch totally removed support for MI2S TERTIARY and QUATERNARY.
One of the major issue was spotted with the design of having separate SoC specific header files for the common lpass driver. This design is prone to break as an when new SoC header is added as the common DAI ids of other SoCs will be overwritten by the new ones.
Having a common header qcom,lpass.h should fix the issue and any new DAI ids should be added to the common header.
With this change lpass also needs a new of_xlate function to resolve dai name.
Fixes: 7cb37b7bd0d3 ("ASoC: qcom: Add support for lpass hdmi driver") Reported-by: Jun Nie jun.nie@linaro.org Reported-by: Stephan Gerhold stephan@gerhold.net Tested-by: Srinivasa Rao srivasam@codeaurora.org Signed-off-by: Srinivas Kandagatla srinivas.kandagatla@linaro.org
This applies fine now and HDMI audio works again on DB410c:
Tested-by: Stephan Gerhold stephan@gerhold.net
Thank you! Stephan
On Tue, 19 Jan 2021 17:15:25 +0000, Srinivas Kandagatla wrote:
LPASS driver is partially broken on DragonBoard DB410c on 5.10 and its totally broken on other Supported Qualcomm SoCs.
This was due to DAI ids being over written by the SoC specific header files in the dt-bindings.
Idea of having SoC specific headers is not doable when we are dealing with a common driver. So this patchset attempts to fix this properly by creating a common dt-bindings header for lpass which can be updated with new entries if required. This patchset also add an simple of_xlate function to resolve the dai names and different SoCs might not have 1:1 mapping for the dai_driver array with dai ids.
[...]
Applied to
https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound.git for-next
Thanks!
[1/2] ASoC: dt-bindings: lpass: Fix and common up lpass dai ids commit: 09a4f6f5d21cb1f2633f4e8b893336b60eee9a01 [2/2] ASoC: qcom: Fix broken support to MI2S TERTIARY and QUATERNARY commit: cd3484f7f1386071b1af159023917ed12c182d39
All being well this means that it will be integrated into the linux-next tree (usually sometime in the next 24 hours) and sent to Linus during the next merge window (or sooner if it is a bug fix), however if problems are discovered then the patch may be dropped or reverted.
You may get further e-mails resulting from automated or manual testing and review of the tree, please engage with people reporting problems and send followup patches addressing any issues that are reported if needed.
If any updates are required or you are submitting further changes they should be sent as incremental updates against current git, existing patches will not be replaced.
Please add any relevant lists and maintainers to the CCs when replying to this mail.
Thanks, Mark
participants (3)
-
Mark Brown -
Srinivas Kandagatla -
Stephan Gerhold